Toshiba Power Supply TOSVERT VF S11 User Manual

E6581222③

TOSVERT VF-S11

Communications Function

Instruction Manual

Notice

1. Make sure that this instruction manual is delivered to the end user of the inverter.

2. Read this manual before first using the communications function, and keep it handy as a

reference for maintenance and inspections.

* The contents of this manual are subject to change without notice.

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Read first

Safety precautions

This manual and labels on the inverter provide very important information that you should bear in

mind to use the inverter properly and safely, and also to avoid injury to yourself and other people and

damage to property.

Read the safety precautions in the instruction manual for your inverter before reading this manual and

strictly follow the safety instructions given.

Reference

Notice

♦ Insert an electromagnetic contactor between the inverter and the power supply so that Inverter instruction

the machine can be stopped without fail from an external controller in case of an emer- manual

gency.

♦ Do not write the same parameter to the EEPROM more than 10,000 times.　The life time Section 4.2

of EEPROM is approximately 10,000 times.(Some parameters are not limited, please “Commands”

refer to the “9.Parameter data “)

When using the TOSHIBA inverter protocol and the data does not need to be records,

use P command (the data is written only to RAM).

♦ About the handling of the inverter, please follow the instruction manual of the inverter.

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Contents

General outlines of the communications function........................................................................................................ 3

Data transmission specifications................................................................................................................................. 4

Communication protocol ............................................................................................................................................. 5

TOSHIBA Inverter Protocol......................................................................................................................................... 6

4.1. Data transmission formats.................................................................................................................................. 8

4.1.1. Data transmission formats used in ASCII mode ....................................................................................... 8

4.1.2. Data transmission formats used in binary mode ..................................................................................... 11

4.1.3. Transmission Format of Block Communication....................................................................................... 14

4.2. Commands....................................................................................................................................................... 18

4.3. Transmission errors.......................................................................................................................................... 21

4.4. Broadcast communications function................................................................................................................. 22

4.5. Examples of the use of communication commands.......................................................................................... 24

4.6. Examples of RS232C communication programs.............................................................................................. 25

MODBUS-RTU protocol............................................................................................................................................ 30

5.1. MODBUS-RTU transmission format .............................................................................................................. 32

5.1.1. Read command (03) ............................................................................................................................... 32

5.1.2. Write command (06) ............................................................................................................................... 33

5.2. CRC Generation............................................................................................................................................... 34

5.3. Error codes....................................................................................................................................................... 34

Inter-drive communication......................................................................................................................................... 35

6.1. Speed proportional control ............................................................................................................................... 38

6.2. Transmission format for inter-drive communication.......................................................................................... 39

Communications parameters.................................................................................................................................... 40

7.1. Communication baud rate() , Parity bit().................................................................................. 41

7.2. Inverter number()................................................................................................................................. 41

7.3. Timer function().................................................................................................................................... 42

7.4. Setting function of communication waiting time ()................................................................................ 43

7.5. Free notes() ......................................................................................................................................... 43

Commands and monitoring from the computer......................................................................................................... 44

8.1. Communication commands (commands from the computer) ........................................................................... 44

8.2. Monitoring from the computer........................................................................................................................... 47

8.3. Control of input/output signals from communication......................................................................................... 53

8.4. Utilizing panel (LEDs and keys) by communication.......................................................................................... 56

8.4.1. LED setting by communication................................................................................................................ 56

8.4.2. Key utilization by communication............................................................................................................ 59

Parameter data......................................................................................................................................................... 60

Appendix 1 Table of data codes........................................................................................................................................ 63

Appendix 2 Response time ............................................................................................................................................... 64

Appendix 3 Compatibility with the communications function of the VF-S9 ........................................................................ 65

Appendix 4 Troubleshooting.............................................................................................................................................. 66

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1. General outlines of the communications function

This manual explains the serial communications interface function provided for the TOSVERT VF-

S11 series of industrial inverters.

The TOSVERT VF-S11 series of inverters can be connected to a computer or a controller (hereinaf-

ter referred to as the computer) for data communications via RS232C converter (RS2001Z) or

RS485 converter (RS4001Z, RS4002Z, RS4003Z). By writing computer programs, you can monitor

the operating status of the inverter, control its operation in various ways from the computer, and

change and store parameter settings on storage devices.

The communication protocol is preparing the TOSHIBA Inverter Protocol and the MODBUS-RTU

protocol. Please choose selection of a protocol with a communication protocol selection parameter

().

By preparing the program (explained later), the following information can be exchanged between the

computer (host) and the inverter.

• Monitoring function (used to monitor the operating status of the inverter: Output frequency, cur-

rent, voltage, etc.)

• Command function (used to issue run, stop and other commands to the inverter)

• Parameter function (used to set parameters and read their settings)

<Inter-drive communication function>

Master inverter sends the data, that is selected by the parameter, to all the slave inverters on the

same network. This function allows a network construction in which a simple synchronous or propor-

tional operation is possible among plural inverters (without the host computer).

As for data communications codes, the TOSVERT VF-S11 series of inverters support the binary

(HEX) code, in addition to the JIS (ASCII) code. The communications function is designed on the as-

sumption that the JIS (ASCII) code is used for communications between the inverter and the person-

al computer, and the binary (HEX) code for communications between the inverter and the microcom-

puter built into the controller. A communication number is used to access the desired data item.

* The smallest unit of information that computers handle is called a “bit (binary digit),” which repre-

sents the two numbers in the binary system: 1 or 0. A group of 16 bits is referred to as a “word,”

which is the basic unit of information the VF-S11 series of inverters use for data communications.

One word can handle data items of 0 to FFFFH in hexadecimal notation (or 0 to 65535 in decimal

notation).

BIT15

BIT8BIT7

BIT0

1 bit

1 word

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2. Data transmission specifications

Items

Specifications

Transmission scheme

Half-duplex

Synchronization scheme

Start-stop synchronization

*: Standard

default setting

Communication baud rate 1200/2400/4800/9600*/19200 bps (selectable using a parameter) ^*1

Communication protocol

Character transmission

TOSHIBA Inverter Protocol * / MODBUS-RTU

<ASCII mode> JIS X 0201 8-bit (ASCII)

<Binary mode, MODBUS-RTU> Binary codes fixed to 8 bits

Received by inverter: 1 bit, Sent by inverter: 2 bits ^*3

Parity ^*2: Even */odd/non parity (selectable using a parameter) ^*1

checksum(Toshiba inverter protocol), CRC(MODBUS-RTU)

Stop bit length

Error detecting scheme

Character

transmission 11-bit characters ^*1(Stop bit=1, with parity)

format

Order of bit transmission

Frame length

Low-order bits transmitted first

Variable (to a maximum of 17 bytes)

*1: Changes to the communication baud rate and to the parity setting do not take effect until the in-

verter is turned back on or reset.

*2: JIS-X-0201 (ANSI)-compliant 8-bit codes are used for all messages transmitted in ASCII mode

and vertical (even) parity bits specified by JIS-X-5001 are added to them. These even parity bits

can be changed to odd parity bits by changing the parameter setting (a change to the parameter

setting does not take effect until the inverter has been reset.)

*3: Here are the default character transmission formats. (Standard default setting)

Characters received: 11 bits (1 start bit + 8 bits + 1 parity bit + 1 stop bit) ... Standard default setting

START

BIT

PARITY STOP

BIT BIT

BIT0

BIT1

BIT2

BIT3

BIT4

BIT5

BIT6

BIT7

The inverter receives one stop bit.

(The computer can be set so as to send 1, 1.5 or 2 stop bits.)

Characters sent: 12 bits (1 start bit + 8 bits + 1 parity bit + 2 stop bits) ... Standard default setting

START

BIT

PARITY STOP

BIT BIT

STOP

BIT

BIT0

BIT1

BIT2 BIT3

BIT4

BIT5

BIT6

BIT7

The inverter sends two stop bits.

(The computer can be set so as to receive 1, 1.5 or 2 stop bits.)

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3. Communication protocol

This communication protocol supports the TOSHIBA Inverter Protocol and part of MODBUS-RTU

protocol.

Select the desired protocol from in the following communication protocol selection parameters

().

“Parameter Name , Communication Number. 0829”

Data Range: 0, 1 (Initial value: 0)

0: TOSHIBA Inverter Protocol (Includes inter-drive communications)

1: MOUBUS-RTU protocol

* A parameter change is reflected when the inverter is reset, such as in power off.

Note : When using the extension panel (RKP001Z) and the parameter writer (PWU001Z), be certain

to set F829=”0” : TOSHIBA inverter protocol.

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4. TOSHIBA Inverter Protocol

Select “TOSHIBA Inverter Protocol” (=) in the communication protocol selection parame-

ters. “TOSHIBA Inverter Protocol” (=) is set for initial communication protocol selection of

shipment setting. (See “3. Communication protocol.”)

■ Exchange of data between the computer and the inverter

In communications between the computer and the VF-S11 (hereinafter referred to as the inverter),

the inverter is always placed in wait states and acts as a slave that operates on a request from the

computer. A start code is used to automatically identify the mode in which data is transmitted: ASCII

mode or binary mode.

A transmission error will result if the transmission format does not match.

■ ASCII mode

(1) In ASCII mode, the start code is “(”

The inverter rejects all data items entered invalid the “(” If two or more “(” are entered, the “(” en-

tered last will be valid and all “(“ entered before will be ignored. If the “(” is not recognized becau-

se of a format error or for any other reason, no error code will be returned since the data is not

recognized at all. In such cases, the inverter regards the data received as a transmission error,

rejects it and goes back into a start code wait state.

(2) When an inverter number is added behind the “(” communications will take place only in case of

broadcast communication or if the number matches up with that assigned to the inverters. If not,

the inverter will go back into a start code wait state.

(3) The inverter stops receiving data on receipt of the CR (carriage return) code inserted in the des-

ignated position.

If the size of the data transmitted exceeds the maximum allowable size (17 bytes) or if the CR

code cannot be found in the designated position within 0.5 seconds, the inverter will regard the

data received as a transmission error and go back into a start code wait state.

(4) If no communications take place within the time specified using the timer function, the computer

will regard it as a communication error and trip the inverter. The timer setting is cleared when the

timer is turned on or initialized. For more details, see Section 7.3, “Timer function.”

(5) On executing the command received, the inverter returns data to the computer. For the response

time, see Appendix 2, “Response time.”

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■ Binary mode

(1) In binary mode, the start code is “2FH(/).”

The inverter rejects all data items entered before the “2FH(/).”

If two or more “2FH(/)” are entered, the “2FH(/)” entered last will be judged valid and all “2FH(/)”

entered before will be ignored.

If the “2FH(/)” is not recognized because of a format error or for any other reason, no error code

will be returned since the data is not recognized at all. In such cases, the inverter regards the

data received as a transmission error, rejects it and goes back into a start code wait state.

(2) If an inverter number is added behind the “2FH(/),” communications will take place only in case of

broadcast communication or if the number matches up with that assigned to the inverters. If not,

the inverter will go back into a start code wait state.

(3) The inverter stops receiving data on receipt of a command and the number of bytes of data

specified by the command.

If no command is found in the data received or if the specified number of bytes of data cannot be

received within about 0.5 seconds, the inverter will regard the data received as a transmission er-

ror and go back into a start code wait state.

(4) If no communications take place within the time specified using the timer function, the computer

will assume that a communication error has occurred and trip the inverter. The timer function is

disabled when the inverter is turned on or initialized. For details, see Section 7.3, “Timer func-

tion.”

(5) On executing the command received, the inverter returns data to the computer. For the response

time, see Appendix 2, “Response time.”

■ Note

Communication is not possible for about one second after the power is supplied to the inverter until

the initial setting is completed. If the control power is shut down due to an instantaneous voltage drop,

communication is temporarily interrupted.

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4.1. Data transmission formats

■ Note: The term “trip status” used in this manual includes retry waiting status and trip retention status.

4.1.1. Data transmission formats used in ASCII mode

A communication number is used to specify a data item, all data is written in hexadecimal, and JIS-

X-0201 (ASCII (ANSI))-compliant transmission characters are used.

■ Computer → VF-S11

Omissible in one-to-one communications

For the W and P commands only

Omissible

")"

"("

INV-NO

2 bytes

CMD

Communication No.

4 bytes

DATA

"&"

SUM

2 bytes

(28H)

1 byte

0 to 4 bytes

(26H)

(29H) (0DH)

Checksum area

Omissible

1. “(“ (1 byte)

: Start code in ASCII mode

2. INV-NO (2 bytes) : Inverter number (Omissible in one-to-one communications) ... 00 (30H, 30H) to 99 (39H,

39h), *(2AH)

The command is executed only when the inverter number matches up with that specified

using a parameter.

(When * is specified in broadcast communications, the inverter number is assumed to

match if all numbers except * match. When * is specified instead of each digit (two-digit

number), all inverters connected are assumed to match.)

If the inverter number does not match or if the inverter number is of one digit, the data will be

judged invalid and no data will be returned.

3. CMD (1 byte)

4. Communication No.(4 bytes)

: Communication number (See 11, “Parameter data.”)

5. Data (0 to 4 bytes): Write data (valid for the W and P commands only)

: Command (For details, see the table below.)

6. “&” (1 byte)

: Checksum discrimination code (omissible. When omitting this code, you also need to omit

the checksum.)

7. Sum (2 bytes)

: Checksum (omissible)

Add the ASCII-coded value of the last two digits (4 bits/digit) of the sum of a series of bits

(ASCII codes) from the start code to the checksum discrimination code.

Ex.: (R0000&??) CR

28H+52H+30H+30H+30H+30H+26H=160H

The last two digits represent the checksum. = 60

When omitting the checksum, you also need to omit the checksum discrimination code.

8. “)” (1 byte)

9. CR (1 byte)

: Stop code (omissible)

: Carriage return code

■ Details of commands and data

CMD (1 byte)

Write data (0 to 4 bytes) Hexadecimal number

No data

Write data (0 to FFFF)

R (52H): RAM read command

W (57H): RAM/EEPROM write command

P (50H) RAM write command

Write data (0 to FFFF)

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■ VF-S11 → computer

At time of broadcast communication, returning of data is not executed, except for the inverters to be

returned, when the inverter number is not matched, and the inverter number has only one character.

This is because there will be a risk of that the returned data may be deformed.

• Data returned when data is processed normally (ASCII mode)

Omissible

")" CR

"("

(28H)

INV-NO

2 bytes

CMD

1 byte

Communication No.

4 bytes

DATA

0 to 4 bytes

"&"

(26H)

SUM

2 bytes

(29H) (0DH)

Checksum area

Omissible

1. “(“ (1 byte)

: Start code in ASCII mode

2. INV-NO (2 bytes) : Inverter number (omitted if it is not found in the data received) ... 00 (30H, 30H) to 99 (39H,

39H)

If the inverter number matches up with that specified using a parameter, data will be return-

ed to the computer. In broadcast communications, only the destination inverter (with a num-

ber matching up with the smallest effective number) returns data to the computer.

In broadcast communications, no data is returned from any inverters except the inverter

bearing a number that matches up with the smallest effective number.

Ex.: (*2R0000) CR -> (02R00000000) CR)

Data is returned from the inverter with the number 2 only, but no data is returned from

inverters with the number 12, 22 ....

3. CMD (1 byte)

: Command ... The command is also used for a check when an inverter is tripped.

Under normal conditions... The uppercase letter R, W or P is returned, depending on the

command received: R, W or P command.

When an inverter is tripped... The lowercase letter r, w or p is returned, depending on the

command received: R, W or P command.

(The command received is returned with 20H added to it.)

4. Communication No.(4 bytes) :

The communication number received is returned.

5. Data (0 to 4 bytes): Data ... The data read in is returned for the R command, while the data received is returned

for the W and P commands. If the data received is composed of less than 4 digits, it will be

converted into 4-digit data and returned.

Ex.: (W123412) CR → (W12340012) CR)

6. “&” (1 byte)

: Checksum discrimination code (omitted if it is not found in the data received)

7. Sum (2 bytes)

: Checksum ... Omitted if no checksum discrimination code is found in the data received.

ASCII-coded value of the last two digits (4 bits/digit) of the sum of a series of bits (ASCII

codes) from the start code to the checksum discrimination code.

8. “)” (1 byte)

9. CR (1 byte)

: Stop code (omitted if it is not found in the data received)

: Carriage return code

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• Data returned when data is not processed normally (ASCII mode)

In case an error occurs, communication error command (4EH(N) or 6EH(n)) and the error type num-

ber is returned to the computer in addition to the checksum. At time of broadcast communication of

the binary mode, returning of data is not executed except for the inverter to be returned (inverter

number 00H) and when the inverter number is not matched. This is because there will be a risk that

the returned data may be deformed.

Omissible

“(“

(28H)

INV-NO

2 bytes

“N” or “n”

(4EH) (6EH)

DATA

4 bytes

"&"

(26H)

SUM

2 bytes

")" CR

(29H) (0DH)

Checksum area

Omissible

“(“ (1 byte)

: Start code in ASCII mode

1) N or n (1 byte)

:Communication error command ... This is also used for the checking of inverter trip.

“4EH(N)” for the normal communication and “6EH(n)” during the inverter trip.

Data (4 bytes)

: Error code (0000~0004)

0000 ... Impossible to execute (Although communication is established normally, the com-

mand cannot be executed because it is to write data into a parameter whose set-

ting cannot be changed during operation (e.g., maximum frequency) or the

EEPROM is faulty.)

0001 ... Data error (The data is outside the specified range or it is composed of too many

digits.)

0002 ... Communication number error (There is no communication number that matches.)

0003 ... Command error (There is no command that matches.)

0004 ... Checksum error (The checksum result differs.)

“)” (1 byte)

: Stop code ... This code is omitted if it is not found in the data received.

■ Examples:

(N0000&5C)_CR... Impossible to execute (e.g., a change of maximum frequency data during opera-

tion)

(N0001&5D)_CR... Data error (Data is outside the specified range.)

(N0002&5E)_CR... No communication number (There is no communication number that matches.)

(N0003&5F)_CR... There is no command that matches. (Commands other than the R, W and P com-

mands)

(Ex.: L, S, G, a, b, m, r, t, w ...)

(N0004&60)_CR... Checksum error (The checksum result differs.)

No data returned ... Format error or invalid inverter number

(Ex.: A code other than the stop code (“)”) (Ex.: ”｝”) is entered in the stop code

position or the CR code was not found within 0.5 sec.)

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4.1.2. Data transmission formats used in binary mode

A communication number is used to specify a data item, data is written in hexadecimal form, and

data in transmission characters are represented by binary codes (HEX codes).

■ Computer → VF-S11 (binary mode)

Omissible in one-to-one communications

No data for the 52H (R) command

“/”

(2FH)

INV-NO

1 byte

CMD

1 byte

Communication No.

2 bytes

DATA

2 bytes

SUM

1 byte

Checksum area

Not omissible

1. 2FH (“/”) (1 byte) : Start code in binary mode

2. INV-NO (2 bytes) : Inverter number (Omissible in one-to-one communications) ... 00H to 3FH ,FFH

In case the inverter number is other than FFH (broadcast communication), command is ex-

ecuted only when the inverter number coincides with the one designated with the panel. If

the inverter number is not matched, it will be judged invalid and the data is not returned.

3. CMD (1 byte)

: Command (For details, see the table below.)

52H (R) command: The size of the data following CMD is fixed to 3 bytes. (Communication

number: 2 bytes, checksum: 1 byte)

57H (W), 50H (P) and 47H (G) commands: The size of the data following CMD is fixed to 5

bytes.

(Communication number: 2 bytes, data: 2 byte, checksum: 1 byte)

Any command other than the above is rejected and no error code is returned.

4. Communication No.(2 bytes)

: Communication number (See 11, “Parameter data.”)

5. Data (2 bytes)

: 0000H to FFFFH

57H (W) and 50H (P) commands: Write data (An area check is performed.)

47H (G) command: Dummy data (e.g., 0000) is needed.

52H (R) command: Any data is judged invalid. (No data should be added.)

6. Sum (2 bytes)

: Checksum (not omissible) 00H to FFH

Value of the last two digits (1 byte) of the sum of a series of bits (codes) from the start code

of the data returned to the data (or to the communication number for the 52H (R) command)

Ex.: 2F 52 00 ?? ... 2FH+52H+00H+00H=81H

The last two digits (??) represent the checksum. = 81

■ Details of commands and data

CMD (1 byte)

Write data (2 bytes) Hexadecimal number

No data

52H (R): RAM read command

57H (W): RAM/EEPROM write command

50H (P): RAM write command

47H (G): RAM read command (for two-wire networks)

Write data (0000H to FFFFH)

Dummy data (0000H to FFFFH)

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■ VF-S11 → computer (binary mode)

At time of broadcast communication of the binary mode, returning of data is not executed except for

the inverter to be returned (inverter number 00H) and when the inverter number is not matched. This

is because there will be a risk that the returned data may be deformed.

• Data returned when data is processed normally (Binary mode)

Omissible

“/”

(2FH)

INV-NO

1 byte

CMD

1 byte

Communication No.

2 bytes

DATA

2 bytes

SUM

1 byte

Checksum area

Not omissible

1. 2FH (“/“) (1 byte) : Start code in binary mode

2. INV-NO (2 bytes) : Inverter number... 00H to 3FH (The inverter number is omitted if it is not found in the data

received.)

If the inverter number matches up with that specified from the operation panel, data will be

returned from the inverter. If the inverter number does not match, the data will be invalid and

no data will be returned.

3. CMD (1 byte)

: Command...The command is also used for a check when the inverter is tripped.

Under normal conditions...52H (R), 47H (G), 57H (W) or 50H (P) is returned, depending on

the command received.

When the inverter is tripped...The lowercase letter 72H (r), 67H (g), 77H (w) or 70H (p) is

returned with 20H added to it, depending on the command received.

4. Communication No. (4 bytes)

: The communication number received is returned.

5. Data (2 bytes)

: Data ... 0000H to FFFFFH

The data read is returned for the 52H (R) and 47H (G) commands, while the data written is

returned for the 57H (W) and 50H (P) commands.

6. Sum (1 bytes)

: Checksum (not omissible) 00H to FFH

Value of the last two digits (1 byte) of the sum of a series of bits (codes) from the start code

to the data.

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2) Error Processing (Binary mode)

In case an error occurs, communication error command (4EH(N) or 6EH(n)) and the error type num-

ber is returned to the computer in addition to the checksum. At time of broadcast communication of

the binary mode, returning of data is not executed except for the inverter to be returned (inverter

number 00H) and when the inverter number is not matched. This is because there will be a risk that

the returned data may be deformed.

Omissible

(1 byte)

“/”

(2FH)

INV-NO

1 byte

N or n

(4EH)(6EH)

DATA

SUM

2 bytes

1 byte

Checksum area

Not omissible

N or n (1 byte)

Data (2 bytes)

: Communication error command ... This command is also used for a check when the inverter

is tripped.

“4EH (N)” is returned under normal conditions, while “6EH (n)” is returned when the in-

verter is tripped.

: Error code (0000~0004)

0000 ... Impossible to execute (Although communication is established normally, the com-

mand cannot be executed because it is to write data into a parameter whose setting

cannot be changed during operation (e.g., maximum frequency) or the EEPROM is

faulty.)

0001 ... Data error (The data is outside the specified range or it is composed of too many

digits.)

0002 ... Communication number error (There is no communication number that matches.)

0004 ... Checksum error (The checksum result differs.)

No code returned ...Command error, format error (failure to receive the specified number of

bytes within 0.5 seconds, or an parity, overrun or framing error) or the

inverter number does not match or an inverter in broadcast communica-

tion in the binary mode except for the inverter for data returning (the in-

verter numbered 00H).

■ Examples:

2FH, 4EH, 00H, 00H, 7DH ... Impossible to execute (e.g., a change of maximum frequency data

during operation)

2FH, 4EH, 00H, 01H, 7EH ... Data setting error (The data specified falls outside the specified

range.)

2FH, 4EH, 00H, 02H, 7FH ... No communication number (There is no communication number that

matches.)

2FH, 4EH, 00H, 04H, 81H ... Checksum error (The checksum result differs.)

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4.1.3. Transmission Format of Block Communication

What is block communication?

Data can be written in and read from several data groups set in one communication by setting the ty-

pe of data desired for communication in the block communication parameters (, ,

 to ) in advance. Block communications can save the communication time.

Data is transmitted hexadecimal using the binary (HEX) code transmission characters. “Computer

→ inverter” is for writing only, while “Inverter → computer” for reply is for reading only.

■ Computer → VF-S11 (Block Communications)

Number of writing data groups x 2 bytes

Omissible

INV-NO

Num-

ber of

write

Num-

ber of

read

Start

Code

“／”

CMD

“X”

Write

data1

High

Write

data1

Low

Write

data2

High

Write

data2

Low

SUM

data

groups

Checksum Area

1. 2FH(“/”) (1 byte) : Start code of binary mode

2. INV-NO (1 byte) : Inverter number. (Can be omitted in 1:1 communications): 00H to 3FH, FFH

Executed only when the inverter number matches the inverter number. Set on the panel, ex-

cept in FFH (broadcast communication).

Communication data will be invalidated and data will not be returned either if the inverter

number. Does not match.

3. CMD (1 byte)

: ‘X’ (Block communication command)

4. Number of write data groups (1 byte)

: Specify the number of data groups to be written (00H to 02H).

If specified outside of the range, data will be treated as a format error and data will not be re-

turned.

5. Number of read data groups (1 byte)

: Specify the number of data groups to be read (00H to 05H).

If specified outside of the range, data will be returned as “Number of read data groups = 0”

when returned by the inverter.

6. Write data1 (2 bytes)

: Needed when the number of write data groups is larger than 1.

Data to be written to the specified parameter selected by 

Dummy data is needed if the number of write data groups is larger than 1 even　though(none)

is selected for 

7. Write data2 (2 bytes)

: Needed when the number of write data groups is 2.

Data to be written to the specified parameter selected by 

Dummy data is needed if the number of write data groups is 2 even　though(none) is selected

for 

8. SUM (1 byte)

: Checksum (Cannot be omitted) 00H to FFH

Lower two digits (1 byte) of total sum from start code (SUM value not included)

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■ Block Write 1, 2

Select data, which is desired to be written in block communications, in Block Communication Write

Data 1 and 2 Parameters (, ). This parameter becomes effective when the system

is reset, such as when power is turned off. When the setting is completed, turn off and then on the

power.

No. Block Write Data

For data details, see:

No selection

　－

Command 1 (FA00)

“8.1 Command by communication”

“8.3 Control of input/put signals from com-

munication”

Command 2 (FA20)

Frequency Command Value (FA01)

Terminal Board Output Data (FA50)

Communication Analog Output (FA51)

“8.3 Control of input/put signals from com-

munication”

* When “No selection” is specified in the parameters, no data will be written even though write data is

specified.

■ Block Read 1 to 5

Select read data, which is desired to be read in block communications, in Block Communication

Read Data 1 and 5 Parameters (to). This parameter becomes effective when

the system is reset, such as when power is turned off. When the setting is completed, turn off and

then on the power.

No. Block Read Data

For data details, see:

No selection

　－

Status 1 (FD01)

“8.2 Monitoring from communication”

“9. Parameter data”

Output Frequency (FD00)

Output Current (FE03)

Output Voltage (FE05)

Alarm Information (FC91)

PID Feedback Value (FE22)

“9. Parameter data”

“8.2 Monitoring from communication”

“9. Parameter data”

“8.3 Control of input/put signals from

communication”

Input Terminal Board Monitoring (FD06)

Output Terminal Board Monitoring (FD07)

Analog Monitoring VIA (FE35)

“8.3 Control of input/put signals from

communication”

“8.3 Control of input/put signals from

communication”

“8.3 Control of input/put signals from

communication”

Analog Monitoring VIB (FE36)

* Output current (FE03), output voltage (FE05) and PID feedback value (FE22) will become hold data

during a trip. Otherwise, real-time data appears.

* “0000” will be returned as dummy data, if “0 (No selection)” is selected for the parameter and “read”

is specified.

E6581222

■ VF-S11 → Computer

At time of broadcast communication of the binary mode, returning of data is not executed except for

the inverter to be returned (inverter number 00H) and when the inverter number is not matched. This

is because there will be a risk that the returned data may be deformed.

1) Normal processing

Omissible

Number of read data groups x 2 bytes

Start

Code

INV CMD

Write Read

Read

Status data1 data1 data2 data2 data3 data3 data4 data4 data5 data5

high low high low high low high low high low

Read

Read SUM

Number

of Read

Data

No.

“Y”

“／”

Groups

Checksum area

1. 2FH “/” (1 byte)

2. INV-NO (1Byte)

：Start code in binary mode

：Inverter number･･･00H to 3FH

If the inverter number matches up with that specified from the operation panel, data will

be returned from the inverter. If the inverter number does not match, the data will be

judged invalid and no data will be returned.

Communication data will be invalidated and data will not be returned either if the in-

verter number does not match. (Inverter number is considered matched if it is omitted

during reception)

3. CMD(1Byte)

:‘Y’ (Block communication command [monitoring])

Lowercase letter ‘y’ during an inverter trip, including standing by for retrying and during

a trip.

4. Number of read data groups (1 byte)

: Return the number of data groups to be read (00H to 05H).

5. Write status (1 byte) : Return 00H to 03H.

* Failing to write in the specified parameter in the number of write data groups, set “1” in

the corresponding bit for the parameter failed to write. (See below.)

Bit Position

Data Type

－

 

6. Read data1 - 5 (2 bytes)

: Return according to the number of read data groups. “0000H” is returned as dummy

data if “0” is selected as a parameter.

Read data1: Data selected by . Read data2: Data selected by .

Read data3: Data selected by . Read data4: Data selected by .

Read data5: Data selected by .

7.SUM(1Byte)

: Checksum (Cannot be omitted) 00H to FFH

Lower two digits (1 byte) of total sum from start code of return data to read data.

■ Example

(When set as follows:  =  (Command 1),  =  (frequency command value),

 =  (status), =  (output frequency),  =  (output current),  =  (output voltage) and

 =  (alarm)

Computer → Inverter：2F 58 02 05 C4 00 17 70 D9

Inverter → Computer：2F 59 05 03 00 00 00 00 00 00 00 00 00 00 90 (When parameter is not set)

Inverter → Computer：2F 59 05 00 40 00 00 00 00 00 00 00 00 00 CD CD (When parameter is set)

Inverter → Computer：2F 59 05 00 64 00 17 70 1A 8A 24 FD 00 00 3D (During operation at 60Hz)

E6581222

2) Error Processing (Binary mode)

In case an error occurs, communication error command (4EH(N) or 6EH(n)) and the error type num-

ber is returned to the computer in addition to the checksum. At time of broadcast communication of

the binary mode, returning of data is not executed except for the inverter to be returned (inverter

number 00H) and when the inverter number is not matched. This is because there will be a risk that

the returned data may be deformed.

Omissible

(1 Byte)

“／”

INV-NO

1 Byte

“N” or “n”

DATA

SUM

(2FH)

(4EH)(6EH)

2 Bytes

1 Byte

Checksum Area

Not omissible

“N” or “n” (1 byte) : Communication error command. Also for check during an inverter trip (includes standing by

for retrying and trip holding). “4EH (N)” when normal, “6EH (n)” during an inverter trip.

DATA (2 bytes)

: Error code (0004)

0004

: Checksum error (The checksum does not match)

No return : Command error, format error (specified number of bytes is not received in 1sec,

or parity error, overrun error or framing error), inverter number mismatch, and

inverter number other than 00H in broadcast communication.

■ Examples

Computer → Inverter : 2F 58 02 05 C4 00 17 70 D8

Inverter → Computer : 2F 4E 00 04 81 ... Checksum error

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4.2. Commands

Here are the communication commands available.

Command

R command Reads the data with the specified communication number.

Function

W command Writes the data with the specified communication number. (RAM and EEPROM).

P command Writes the data with the specified communication number. (RAM).

Reads the data with the specified communication number. (For binary mode only.

Dummy data is required for this command.)

G command

X command Block communication (Computer -> Inverter)

Y command Block communication (Inverter -> Computer)

„ W (57H) (RAM^*1/EEPROM^*2write)

This command is used to write new data into the parameter specified using it communication number.

It writes data into the RAM and EEPROM. For parameters whose settings cannot be stored in the

EEPROM (e.g., parameter with the communication number FA00), the W (57H) command writes

data into the RAM only. It cannot be used to write data into read-only parameters (e.g., parameter

with the communication number FD?? or FE??).

Each time an attempt to write data is made, the inverter checks if the data falls within the specified

range. If this check reveals that the data falls outside the specified range, the inverter will reject it and

return an error code.

- Ex.: Setting the deceleration time (communication number: 0010) to 10 sec.

CR: Carriage return

Computer → Inverter

(W00100064)CR

Inverter → Computer

(W00100064)CR

…(10÷0.1=100=0064H)

Computer → Inverter

2F 57 00 10 00 64 FA

Inverter → Computer

2F 57 00 10 00 64 FA

…(10÷0.1=100=0064H)

Notice

♦ Do not write the same parameter to the EEPROM more than 10,000 times. The life time of EEPROM is

approximately 10,000 times.(Some parameters are not limited, please refer to the “9.Parameter data “)

The lifetime of EEPROM is approximately 10,000 times. When using the TOSHIBA inverter protocol and

the data does not need to be records, use P command (the data is written only to RAM).

■ Explanation of terms

*1: The RAM is used to temporarily store inverter operation data. Data stored in the RAM is cleared

when the inverter is turned off, and data stored in the EEPROM is copied to the RAM when the

inverter is turned back on.

*2: The EEPROM is used to store inverter operation parameter settings, and so on. Data stored in

the EEPROM is retained even after the power is turned off, and it is copied to the RAM when the

inverter is turned on or reset.

E6581222

„ P (50H) (RAM^*1write)

This command is used to rewrite data into the parameter specified using a communication number. It

writes data into the RAM only. It cannot be used to write data into any read-only parameters. Each

time an attempt to write data is made the inverter checks whether the data falls within the specified

range. If this check reveals that the data falls outside the range, the inverter will reject it and return an

error code.

- Ex.: Entering the emergency stop command (communication number: FA00) from the computer

Computer → Inverter

Inverter → Computer

(PFA009000)CR

…Command priority, emergency stop

command

Computer → Inverter

2F 50 FA 00 90 00 09

Inverter → Computer

2F 50 FA 00 90 00 09

„ R (52H) (Data read)

This command is used to read the setting of the parameter specified using a communication number.

(When multiple inverters are operated in binary mode via RS485 converter connected to a two-wire

line, the execution of the R command could result in a communication error. To avoid this, use the G

command in binary mode when inverters are connected to a two-wire line.)

- Ex.: Monitoring the electric current (communication number: FE03)

Computer → Inverter

(RFE03)CR

Inverter → Computer

(RFE03077B)CR

…Current: 1915 / 100 = 19.15%

Computer → Inverter

2F 52 FE 03 82

Inverter → Computer

2F 52 FE 03 07 7B 04

Notice

When multiple inverters are operated in binary mode via RS485 converter connected to a two-wire line, use

the G command to read data.

„ G (47H) (Data read)

This command is used to read the parameter data specified using a communication number.

To send this command to an inverter with two-wire type RS485 network, 2bytes of dummy data are

needed. This command is available only in binary mode.

- Ex.: Monitoring the electric current (communication number: FE03)

Computer → Inverter

Inverter → Computer

2F 47 FE 03 00 00 77

2F 47 FE 03 07 7B F9

* In this example, the data 00H sent from the computer to the inverter is dummy data.

E6581222

„ S (53 H)/ s (73 H) Inter-drive communication command(RAM^*1Write)

This command is for using frequency command values in % (1 = 0.01%), instead of in Hz, and is for

synchronous-proportional operation in inter-drive communication. This command can also be used

in ordinary computer link communications.

When writing in the frequency command (FA01) is enabled and a parameter other than it is specified,

a communication number error will result. Data is written in the RAMs only and at this time the data

check such as an upper limit and lower limit checking is not carried out.

Data is not returned from the inverters while this command is used. This command can be used

only in the binary mode.

For the details of the format, see “6.2 Transmission format for inter-drive communication.”

Use (%) as the unit for frequency command values specified by the command S, instead of (Hz), and

the receiving side converts units for frequency values to “Hz” in accordance with the point conversion

parameter. The conversion formula is shown below.

Frequency command value (Hz) =

Point 2 frequency (F813) − Point 1 frequency (F812)

x (Frequency command value (%)

Point 2 (F814) − Point 1 (F811)

− Point 1 (F811)) + Point 1 frequency (F812)

When Command “s” (lowercase letter) is received, the slave side judges that the master side is

tripped and operates in accordance with the inter-drive communication parameter ().

For detail, see "7. Communication parameters ".

- Examples: 50% frequency command

(If maximum frequency = Frequency for operation at 80Hz = 40Hz: 50% = 5000d = 1388H)

Master inverter → Slave inverter

Slave inverter → Master inverter

2F 53 FA 01 13 88 18

No return

„ X(58H)/Y (59H) (Block Communication Command)

Data selected in the block communication write parameters (,) is written in the

RAMs. When returning data, data selected in block communication read parameters ( to

) is read and is returned.

- Examples: 60Hz operation command from communication and monitoring (Monitoring when al-

ready operating at 60Hz)

(Parameter Setting:  = , = ,  = ,  = ,  = ,  =

, = )

Computer → Inverter

Inverter → Computer

2F 58 02 05 C4 00 17 70 D9

2F 59 05 00 64 00 17 70 1A 8A 24 FD 00 00 3D

E6581222

4.3. Transmission errors

■ Table of error codes

Error name

Description

Error code

Impossible to exe- The command is impossible to execute, though communication was

0000

cute

established normally.

1 Writing data into a parameter whose setting cannot be changed

during operation (e.g., maximum frequency) ^*1

2 Writing data into a parameter while “” is in progress

3 The maintenance command is issued. ^*2

Invalid data is specified.

Data error

0001

0002

Communication

number error

There is no communication number that matches.

Ex.: In the case of (R0)))) CR, 0))) is recognized as a communication

number.

Command error

The command specified does not exist.

0003 (ASCII mode)

No code returned (Binary

mode)

Checksum error

Format error

The Checksum does not match.

0004

The data transmission format does not match.

1 One-digit inverter number (ASCII mode)

2 The CR code is found in the designated position. (ASCII mode)

Ex.:Communication number of 4 digit or less. In the case of (R11)

CR, 11) CR is recognized as a communication number and

the CR code is not recognized, with the result that a format er-

ror occurs.

No code returned

3 A code other then the stop code (“)”) is entered in the stop code

position.

4 The specified number of bytes of data are not received within 0.5

sec.

Receiving error

A parity, overrun or framing error has occurred. ^*3

No code returned

*1: For parameters whose settings cannot changed during operation, see 11.1, Table of parame-

ters.”

*2: In binary mode, no data will be returned if a command error occurs. When the maintenance

command (M) is issued, an impossible-to-execute error occurs and an error code is returned.

*3: Parity error

: The parity does not match.

Overrun error : A new data item is entered while the data is being read.

Framing error : The stop bit is placed in the wrong position.

* For the errors with “no code returned” in the above table, no error code is returned to avoid a data

crash.

If no response is received, the computer side recognizes that a communication error has occurred.

Retry after a lapse of some time.

* If the inverter number does not match, no processing will be carried out and no data will be re-

turned, tough it is not regarded as an error.

E6581222

4.4. Broadcast communications function

Broadcast communication function can transmit the command (write the data) to multiple inverters by

one communication. Only the write (W, P) command is valid and the read (R, G) command is invalid.

The inverters subject to the broadcast communication are the same to the independent communica-

tion; 0 to 99 (00H - 63H) in the ASCII mode, and 0 to 63 (00H - 3FH) in the binary mode.

To avoid data deforming, the inverters to return data will be limited. A RS485 communication con-

verter unit (RS4001Z, RS4002Z or RS4003Z) will be needed to control multiple inverters on the net-

work.

■ “Overall” broadcast communications (ASCII mode / Binary mode)

- ASCII Mode

If you enter two asterisks (**) in the inverter number position of the data transmission format, the

computer will send the data simultaneously to all inverters (with an inverter number between 0 and

99 (00 to 63H)) on the network.

- Binary Mode

To put "FF" to the specified place of the inverter number in the communication format validates the

broadcast communication and the command is transmitted to all the applicable inverters in the net-

work (inverter numbers from 0 to 63 (00 to 3FH)).

Data is returned from the inverter bearing the inverter number 00 only.

If you do not want inverters to return data, do not assign the number 00 to any inverter on the net-

work.

■ “Group” broadcast communications (ASCII mode only)

If you put “*?” In the inverter number position of the data transmission format, data will be sent

simultaneously to all inverters bearing a number whose digit in the one’s place in decimal notation

is”?”

If you put ”?*” In the inverter number position of the data transmission format, the data will be sent

simultaneously to all inverters bearing a number whose digit in the ten’s place in decimal notation

is”?”.

(“?”: Any number between 0 and 9.)

Data is returned only from the inverter bearing the smallest number in the same group of inverters

(i.e., inverter whose number in the position of ”*” is 0).

If you do not want inverters to return data to the computer, do not assign a number having a 0 in the

position of “*” to any inverter on the network.)

■ Examples of broadcast communications

Ex: Set the frequency setting for communication to 60Hz.

1 Host computer → Multiple inverters: broadcast communications (ASCII Mode)

Example of transmission of data from host computer to inverter: (**PFA011770)_CR

Example of data returned from inverter to host computer: (00PFA011770)_CR

Data is returned from the inverter numbered 00 only, while commands are issued to all inverters

connected to the network.

2 Host computer → A specific group of inverters: group communications (ASCII Mode)

Example of transmission of data from host computer to inverters: (*9PFA011770)_CR

Example of data returned from inverter to host computer: (09PFA011770)_CR

Data is returned only the inverter numbered 09 only, while commands are issued to a maximum of

10 inverters bearing the number 09, 19, 29, 39, ... or 99.

3 Host computer → Multiple inverters: broadcast communications (Binary Mode)

Example of transmission of data from host computer to inverters: 2F FF 50 FA 01 17 70 00

Example of data returned from inverter to host computer: 2F 00 50 FA 01 17 70 01

Returning is possible only for the inverter that has the number 00, and the command is transmitted

to all the applicable inverter connected in the network.

E6581222

•

An example of system configuration (schematic diagram)

RS485 communication converter unit (RS4001Z,

Host

computer

RS4002Z or RS4003Z) will be needed to control multiple

inverters on the network.

Block 2

Block 1

Inverter No.20 Inverter No.21

Inverter No.29

Inverter No. 10 Inverter No.11

Inverter No.19

VF-S11

*1: Error signal I/F

In broadcast communications, only the representative inverter in each block returns data to the host

computer. However, you can make the representative inverter in each block report the occurrence of

a problem in the block. To do so, follow these steps.

Set the timer function so that, if a time-out occurs, the inverter will trip (Ex.: = (sec)), set the

output terminal selection parameter (FL) so that trip information will be output through the output

terminal (=), and set the input terminal selection parameter (F) of the representative in-

verter in each block to “external input trip (emergency stop)” (=). Then, connect the input

terminal (F) of the representative inverter to the FL terminal of each of the other inverters in the same

block. In this setting, if an inverter trips, the representative inverter will come to an emergency stop,

and as a result it will report the occurrence of a problem in its block to the computer. (If the repre-

sentative inverter returns a lowercase letter in response to a command from the computer, the com-

puter will judge that a problem has arisen in an inverter.) To examine details on the problem that has

arisen, the host computer accesses each individual inverter, specifying its communication number.

To make the computer issue a command to all inverters in block 1 or block 2 shown in the figure

above, specify “1*” or “2*”, respectively. In this system, inverter No. 10 will return data to the comput-

er if a problem arises in block 1, or inverter No. 20 if a problem arises in block 2. For overall broad-

cast communications, specify “**”, in which case the inverter with the communication number “00” will

return data to the computer.

In this example, if you want the computer to maintain communications without bringing an represen-

tative inverter to an emergency stop, set its input terminal selection parameter to “disabled

(=) but not to “external input trip (emergency stop).” This setting causes the host computer

to check the setting of the input terminal information parameter (communication number: FE06) of

the representative inverter, and as a result enables the computer to detect the occurrence of a prob-

lem.

CAUTION:

Data from inverters will be deformed if inverters of the same number are connected on the network.

Never assign same single numbers to inverters on the network.

E6581222

4.5. Examples of the use of communication commands

Here are some examples of the use of communications commands provided for the VF-S11 series of

inverters.

Inverter numbers and checksum used in ASCII mode are omitted from these examples.

■ Examples of communications

- To run the motor in forward direction with the frequency set to 60 Hz from the computer

Computer → Inverter

Inverter → Computer

(PFA011770)CR

…Set the operation frequency to 60 Hz.

(60 / 0.01 Hz = 6000 = 1770H)

(PFA00C400)CR

…Set to “forward run” with commands and frequency

instruction from the computer enabled.

Computer → Inverter

2F 50 FA 01 17 70 01

2F 50 FA 00 C4 00 3D

Inverter → Computer

2F 50 FA 01 17 70 01

2F 50 FA 00 C4 00 3D

- To monitor the operation frequency (during 60 Hz operation)

Computer → Inverter

Inverter → Computer

(RFD00)CR

(RFD001770)CR

…Set the operation frequency to 60 Hz.

(60÷0.01Hz=6000=1770H)

Computer → Inverter

2F 52 FD 00 7E

Inverter → Computer

2F 52 FD 00 17 70 05

- To monitor the status of the inverter

Computer → Inverter

Inverter → Computer

(RFD01)CR

(rFD010003)CR

…For details on statuses, see 8.2 “Monitoring from

the computer.” (Stop status, FL output status, trip

status (r command))

Computer → Inverter

2F 52 FD 01 7F

Inverter → Computer

2F 72 FD 01 00 03 A2

- To check the trip code (when the inverter is tripped because of )

…For details on trip codes, see “Trip code monitor” in 8.2, “Monitoring

from the computer.” (18H = 24d “” trip status)

Computer → Inverter

(RFC90)CR

Inverter → Computer

(rFC900018)CR

Computer → Inverter

2F 52 FC 90 0D

Inverter → Computer

2F 72 FC 90 00 18 45

E6581222

4.6. Examples of RS232C communication programs

Ex. 1: BASIC program for monitoring the operation frequency continuously (RS232C, ASCII mode)

(Toshiba version of Advanced BASIC-86 Ver. 3.01.05J)

◊ Monitoring the operation frequency continuously

1) Examples of programs

10 OPEN "COM1:9600,E,8,1" AS #1

20 A$=”FE00”

--- 9600 baud, even parity, 8-bit length, 1 stop bit

--- Specifies the communication number for

monitoring the operation frequency.

--- Transmits data to the inverter.

Note: The carriage return code is added

automatically.

30 PRINT #1,"("+”R”+A$+")"

40 INPUT#1,B$

50 AAA$=“&H”+MID$(B$,7,4)

--- Receives data returned from the inverter.

--- Extracts only data items from the data re-

turned.

60 F$=LEFT$(STR$(VAL(AAA$)/100),6)

--- Converts data into decimal form.

70 PRINT " Operation frequency =";F$+“Hz” --- Displays the operation frequency.

80 GOTO 20 --- Repeats.

2) Examples of program execution results (stop command issued during 80 Hz operation)

Operation frequency = 80 Hz ...

Operation frequency = 79.95Hz

Operation frequency = 0Hz

E6581222

Ex. 2: BASIC program for executing an input command with checksum (RS232C, ASCII mode)

(Toshiba version of Advanced BASIC-86 Ver. 3.01.05J)

◊ Checking if the maximum frequency setting has been changed correctly

1) Examples of programs

10 OPEN "COM1:9600,E,8,1" AS #1

--- 9600 baud, even parity, 8-bit length, 1 stop bit

--- Reads in data to be sent to the inverter.

--- Adds “(“ and “&” to the read data in.

20 INPUT"Send Data=";A$

30 S$="("+A$+"&"

40 S=0

50 L=LEN(S$)

60 FOR I=1 TO L

Calculates the number of bits (checksum).

70 S=S+ASC(MID$(S$,I,1))

80 NEXT I

90 CHS$=RIGHT$(HEX$(S),2)

100 PRINT #1,"("+A$+"&"+CHS$+")"

--- Sends the data including the checksum result

to the inverter.

110 INPUT #1,B$

120 PRINT "Receive data= ";B$

130 GOTO 20

--- Receives data returned from the inverter.

--- Displays the data received.

--- Repeats.

2) Examples of program execution results

Send Data=? R0011

--- Reads the maximum frequency (0011).

--- 1F40 (Maximum frequency: 80 Hz)

--- Changes the maximum frequency to 60 Hz

(1770).

Receive Data= (R00111F40&3D)

Send Data=? W00111770

Receive Data= (W00111770&36)

Send Data=? R0011

Receive Data= (R00111770&31)

--- Reads the maximum frequency (0011).

--- 1770 (Maximum frequency: 60 Hz)

E6581222

Ex. 3 BASIC program for communication tests (RS232C, ASCII mode)

(Toshiba version of Advanced BASIC-86 Ver. 3.01.05J)

◊ Accessing a parameter (with error code.)

1) Examples of programs

100 INPUT "Baud rate=9600/4800/2400/1200";SPEED$

---- Selects a baud rate.

110 INPUT "Parity=even(E)/odd(O)";PARITY$

---- Selects parity.

120 OPEN "COM1:"+SPEED$+","+PARITY$+",8,1"AS #1

130 INPUT "Send data";B$

140 PRINT #1,B$

---- Enters a command.

150 C$=""

160 T=TIMER

170 COUNT=(TIMER-T)

180 IF COUNT >3 THEN 270

190 IF COUNT <0 THEN T=TIMER

200 IF LOC(1)= 0 THEN A$="":GOTO 220

210 A$=INPUT$(1,#1)

220 IF A$ <>CHR$(13) THEN 240

230 GOTO 290

---- Prevents an increase in the number of digits.

---- Carriage return

(CR) to finish reading in.

240 IF A$="" THEN 160

250 C$=C$+A$

260 GOTO 160

270 COLOR @0,7:PRINT "!!! There is no data to return. !!! ";:COLOR @7,0:PRINT

280 GOTO 130

---- Repeats.

290 PRINT A$;

300 C$=C$+A$

310 PRINT "Return data=";c$;

320 GOTO 130

---- Repeats.

2) Examples of program execution results (In this example, the inverter number is 00.)

Baud rate=9600/4800/2400? 9600

Parity=even(E)/odd(O)? E

Send data? (00R0011)

Return data= (00R00111770)

Send data? ()

---- Selects 9600 baud.

---- Select E (even parity).

---- Carries out test communications.

---- Error

!!! There is no data to return. !!!

Send data? (R0011)

Return data= (R00111770)

Send data?

---- No data is returned.

E6581222

Ex. 4 A VisualBaisc program for the ASCII mode communication

(VisualBaisc is the registered trademark of the U.S. microsoft company.)

◊ Accessing a parameter

1) Sample program executive example (Monitor of the output frequency (FD00))

Transmission and reception of the optional data like in the following example can be done by doing

"the arrangement of the form control" of the explanation and "the description of the code" with

mentioning later.

Reply data from the inverter

are 1770H (6000d) with this

example.

As for the unit of the output

frequency (FD00),1= 0.01Hz,

the Inverter is being operated

in 60.00Hz.

2)Arrangement of the control on the form

Two TextBox, two Labels , three CommandButton and one MsComm are arranged on the form as

follows.

E6581222

3)The description of the code

Private Sub Form_Load()

Form1.Show

'**********************************************************************

' Setting the labels (Initialization)

'**********************************************************************

Label1.Caption = "Data for transmission"

Label2.Caption = "Received data"

Command1.Caption = "Transmit"

Command2.Caption = "Clear"

Command3.Caption = "Exit"

'**********************************************************************

' Setup of communication (Initialization)

'**********************************************************************

MSComm1.RThreshold = 0

MSComm1.InputLen = 1

MSComm1.CommPort = 1

MSComm1.InBufferCount = 0

MSComm1.OutBufferCount = 0

Form1.MSComm1.Settings = "9600,E,8,1"

Form1.MSComm1.InputMode = comInputModeText

'**********************************************************************

' A serial port is opened. (Initialization)

'**********************************************************************

If False = MSComm1.PortOpen Then

MSComm1.PortOpen = True

End If

'**********************************************************************

' Data are received.

'**********************************************************************

dummy = DoEvents()

If MSComm1.InBufferCount Then

Text1.Text = Text1.Text & MSComm1.Input

End If

Loop

End Sub

'**********************************************************************

' The contents of the text box are transmitted.

'**********************************************************************

Private Sub Command1_Click()

MSComm1.Output = Text2.Text & Chr(13)

End Sub

'**********************************************************************

'The contents of the text box are removed.

'**********************************************************************

Private Sub Command2_Click()

Text2.Text = ""

Text1.Text = ""

End Sub

'**********************************************************************

'A serial port is closed, end

'**********************************************************************

Private Sub Command3_Click()

If True = MSComm1.PortOpen Then

MSComm1.PortOpen = False

End If

End

End Sub

E6581222

5. MODBUS-RTU protocol

The MODBUS-RTU protocol of VF-S11 supports only part of the MODBUS-RTU protocol. Only two

commands are supported, “03: Multiple data read (limited only to two bytes)” and “06: Word writes.”

All data will be binary codes.

■ Parameter Setting

• Protocol Selection ()

Select “MODBUS－RTU protocol ( = ) in the communication selection parameters. “TO-

SHIBA Inverter Protocol” (=) is set for communication protocol selection in initial shipment

setting. (See “3. Communication protocol.”)

* Caution when selecting MODBUS-RTU protocol

The extension panel (RKP001Z) and parameter writer (PWU001Z) , these options cannot be used.

Note that Parameter Numbers. , , ,  and  to  do not

function.

• Inverter Number ()

Inverter numbers. 0 to 247 can be specified in MODBUS-RTU. “0” is allocated to broadcast com-

munication (no return). Set between 1 and 247.

 : Communication baud rate

 : Parity

 : Communication error trip time

■ Timing of Message from Host

MODBUS-RTU sends and receives binary data without a frame synchronization header character

and defines the frame synchronizing system to recognize the start of a frame by no-data time.

MODBUS-RTU initializes frame information and decides the data that is first received subsequently

as the first byte of a frame if data is not communicated within a time for 3.5 bytes, including the start

and stop bits, at the transmission speed of the on-going communication while standing by for data

reception. If a frame is being received before no-data time for 3.5 bytes, this frame will be aborted.

Be sure to provide more than 3.5 bytes for data send interval.

Send data so that the time between characters will not be spaced for more than 1.5 bytes. Other-

wise, MODBUS-RTU will sometimes recognize it as a start of data.

In the case of data to other stations, messages from the host and responses from other stations are

also received. A wait time for 3.5 bytes is needed before starting transmission after own station

completes reception when sending a response to recognize a frame start at this time.

E6581222

■ Data Exchange with Inverters

The inverters are always ready to receive messages and perform slave operation in response to

computer requests.

A transmission error will result if the transmission format does not match. The inverters will not re-

spond if a framing error, parity error, CRC error or an inverter number mismatch occurs.

If no response is received, the computer side recognizes that a communication error has occurred.

Transmit data again.

(1) In case spacing for more than 3.5 bytes are provided before characters, all data immediately

preceding it will be aborted. Data will sometimes be aborted if spacing for 1.5 bytes or more is

provided between characters.

(2) Communications will be effective only when inverter numbers match or the communication mode

is broadcast communications. No response will be made if inverter numbers do not match.

(3) Message reception will end if spacing for more than 3.5 bytes are provided at the end of charac-

ters.

(4) If no communications take place within the time specified using the timer function, the computer

will assume that a communication error has occurred and trip the inverter. The timer function is

disabled when the inverter is turned on or initialized. For details, see Section 7.3, “Timer func-

tion.”

(5) On executing the command received, the inverter returns data to the computer. For the response

time, see Appendix 2, “Response time.”

■ Caution:

Communication is not possible for about one second after the power is supplied to the inverter until

the initial setting is completed. If the control power is shut down due to an instantaneous voltage drop,

communication is temporarily interrupted.

E6581222

5.1. MODBUS-RTU transmission format

MODBUS-RTU sends and receives binary data without a frame-synchronizing start code and defines

the blank time to recognize the start of a frame. MODBUS-RTU decides the data that is first re-

ceived subsequently as the first byte of a frame after a blank time for 3.5 bytes at the on-going com-

munication speed.

5.1.1. Read command (03)

■ Computer → VF-S11 *The text size is 8 bytes fixed.

Commu- Commu- Number Number

(3.5bytes Inverter

Blank) No.

nication

No.

(high)

nication

No.

(low)

of Data

Groups

(high)

of Data

Groups

(low)

CRC

(low)

CRC

(high)

(3.5bytes

Blank)

Command

1) Inverter No.. (1 byte)

: Specify an inverter number between 0 and 247 (00H to F7H).

Command processing will be executed only broadcast communication “0” and with

those inverters that match set inverter numbers. Data will not be returned if “0”

(broadcast communication) and inverter numbers do not match.

2) Command (1 byte)

: Set the read command (03H fixed).

3) Communication No.. (2 bytes)

: Set in the order of high to low numbers.

4) Number of data groups (2 bytes) : Set the number of data words 0001 (fixed) in the order of high to low numbers.

5) CRC (2 bytes)

: Set generation results of CRC in the order of low to high numbers.. For the

method to generate CRC, see “5.2 CRC Generation.” Note that the setting se-

quence is reversal to that of others.

■ VF-S11 → Computer (Normal return) *The text size is 7 bytes fixed.

(3.5bytes Inverter

Number of Read data Read data

CRC

(low)

CRC

(high)

Command

Blank)

No.

Data

(high)

(low)

1) Command (1 byte)

2) Number of data

: Read command (03H fixed) will be returned.

: A number of data bytes (02H fixed) will be returned. The number of data groups for

transmission to the inverters is 2 bytes and 01H fixed. Note that the number of data re-

turned by the inverters is 1 byte and 02H fixed.

3) Read data (2 bytes)

: Returned in the order of read data (high) and (low).

■ VF-S11 → Computer (Abnormal return) *The text size is 5 bytes fixed.

(3.5bytes

Blank)

CRC

(low)

CRC

(high)

Inverter No. Command Error Code

1) Command (1 byte)

2) Error code (1 byte)

: 83H fixed (Read command error) (Command + 80H)

: See “4.3 Transmission errors.”

■ Example: Reading output frequency (During 60Hz operation)

(Computer → inverter)

(Inverter → computer)

01 03 FD 00 00 01 B5 A6

01 03 02 17 70 B6 50

■ Example: Data specification error

(Computer → inverter)

(Inverter → computer)

01 03 FD 00 00 02 F5 A7

01 83 03 01 31

E6581222

5.1.2. Write command (06)

■ Computer → VF-S11 *The text size is 8 bytes fixed.

Communi- Communi-

Command cation No. cation No.

(high) (low)

(3.5bytes Inverter

Blank) No.

Write Data Write Data

CRC

(low)

CRC

(high)

(3.5bytes

Blank)

(high)

(low)

1) Inverter No. (1 byte)

: Specify an inverter number between 0 and 247 (00H to F7H).

Command processing will be executed only broadcast communication “0” and with

those inverters that match set inverter numbers. Data will not be returned if “0”

(broadcast communication) and inverter numbers do not match.

: Set the write command (06H fixed).

2) Command (1 byte)

3) Communication No. (2 bytes) : Set in the order of high to low numbers.

4) Write data (2 bytes)

5) CRC (2 bytes)

: Set in the order of high to low write data.

: Set generation results of CRC in the order of low to high numbers. For the method to

generate CRC, see “5.2 CRC Generation.” Note that the setting sequence is reversal

to that of others.

■ VF-S11 → Computer (Normal return) *The text size is 8 bytes fixed.

Communi- Communi-

Command cation No. cation No.

(high) (low)

(3.5bytes Inverter

Blank) No.

Write Data Write Data

CRC

(low)

CRC

(high)

(3.5bytes

Blank)

(high)

(low)

: Write command (06H fixed) will be returned.

: Returned in the order of write data (high) and (low).

1) Command (1 byte)

2) Write data (2 bytes)

■ VF-S11 → Computer (Abnormal return) *The text size is 5 bytes fixed.

(3.5bytes

Blank)

CRC

(low)

CRC

(high)

Inverter No. Command Error Code

1) Command (1 byte)

2) Error code (1 byte)

: 86H fixed (Read command error) (Command + 80H)

: See “4.3 Transmission errors.”

■ Example: Writing in frequency command value (FA01) (60Hz)

(Computer → inverter)

01 06 FA 01 17 70 E6 C6

(Inverter → computer)

01 06 FA 01 17 70 E6 C6

■ Example: Communication number error

(Computer → inverter)

01 06 FF FF 00 00 89 EE

01 86 02 C3 A1

(Inverter → computer)

Note

▼ The EEPROM life is 10,000 operations.

Do not write in the same parameter that has an EEPROM more than 10,000 times.

The communication commands (FA00, FA20, FA26), communication frequency command (FA01),

terminal output data (FA50) and analog output data (FA50) are stored in the RAMs only and no re-

strictions are placed on them.

E6581222

5.2. CRC Generation

“CRC” is a system to check errors in communication frames during data transmission. CRC is

composed of two bytes and has hexadecimal-bit binary values. CRC values are generated by the

transmission side that adds CRC to messages. The receiving side regenerates CRC of received

messages and compares generation results of CRC regeneration with CRC values actually received.

If values do not match, data will be aborted.

■ Flow

A procedure for generating a CRC is:

CRC generation ( )

1, Load a 16–bit register with FFFF hex (all 1’s). Call this

the CRC register.

CRC initial data: FFFF

2. Exclusive OR the first 8–bit byte of the message with the

low–order byte of the 16–bit CRC register, putting the

result in the CRC register.

Byte counter n = 0

Nｏ

Byte counter n < Length

3. Shift the CRC register one bit to the right (toward the

LSB), zero–filling the MSB. Extract and examine the

LSB.

Yes

CRC = (CRC XOR n^thsend byte

(0 expanded to word (higher 8

bits))

4. (If the LSB was 0): Repeat Step 3 (another shift).

(If the LSB was 1): Exclusive OR the CRC register with

the polynomial value A001 hex (1010 0000 0000 0001).

Bit counter = 0

Nｏ

Bit counter < 8

Yes

5. Repeat Steps 3 and 4 until 8 shifts have been per-

formed. When this is done, a complete 8–bit byte will

have been processed.

C = (Remainder of CRC ÷ 2)

ＣＲＣ >> １

Nｏ

6. Repeat Steps 2 through 5 for the next 8–bit byte of the

message. Continue doing this until all bytes have been

processed.

Is remainder (C)

other than 0?

Yes

CRC＝

(CRC XOR generating polyno-

mial (A001))

7. The final contents of the CRC register is the CRC value.

8. When the CRC is placed into the message, its upper and

lower bytes must be swapped as described below.

Bit counter +1

Byte counter +1

End (Return CRC)

5.3. Error codes

In case of the following errors, the return commands from the inverters are added 80h to the com-

mands received by the inverters. The following error codes are used.

Error Code

Description

Command error (Returned when a command other than 03 or 06 is received)

Communication number error (A communication number is not found when Com-

mand 03 or 06 is received)

Data range error (Data range error when Command 03 or 06 is received

Unable to execute (Command 06 is being received and data cannot be written)

(1) Writing in write-disable-during-operation parameter

(2) Writing in parameter that is executing TYP

E6581222

6. Inter-drive communication

Inter-drive communication function enables manipulation of multiple inverters without using the host

computer such as the PLC and the PC. This function is utilized for "speed proportional control". The

command is instructed by the operation from the master inverter’s panel or analog input, etc.

With the Inter-drive communication function, the master inverter continues to transmit the data se-

lected by the parameters to all the slave inverters on the same network. The master inverter uses the

S command for outputting instructions to the slave inverters, and the slave inverters do not return the

data. (See chapter 4.2 "Command".) Network construction for a simple synchronized operation and

speed-proportional operation can be created by this function.

The inverters on the slave side are always ready to receive messages during inter-drive communica-

tions and perform slave operation in response to requests made by the inverters on the master side

or computer requests during inter-drive communications. The inverters on the master side are al-

ways ready to send messages during inter-drive communications and do not receive data.

To use the inter-drive communication function, select “TOSHIBA Inverter Protocol” (=) in

the communication protocol selection parameters. “TOSHIBA Inverter Protocol” (=) is set

for communication protocol selection in Shipment setting. (See “3. Communication protocol.”)

Slave 1 (50Hz)

VF-S11

Slave 2 (40Hz)

VF-S11

Slave 3 (30Hz)

VF-S11

Master (60Hz)

VF-S11

RS485 communication converter unit (RS4001Z,

RS4002Z or RS4003Z) will be needed to control multiple

inverters on the network.

Analog input

<Notes>

Speed command can be transmitted but the run / stop signal is not issued. Slave station should have an individual

stop signal or the function to stop the action by the frequency reference. (Setting is necessary for : Opera-

tion starting frequency, : Operation starting frequency hysteresis .)

For continuing the operation by the last received command value in the case of a communication breakdown,

provide a communication time-out interval () to trip the slave inverters. The master inverter does not trip

even though the communication breakdown happens. To trip the master inverter, provide an interlock mechanism

by installing an FL fault relay point or the like from the slave side.

E6581222

■ Setting of parameter

●Selection of communication protocol () Shipment setting: 0 (TOSHIBA Inverter Protocol)

Protocol setting with all inverters (both master and slave inverters) engaged in inter-drive commu-

nications

0: Set the TOSHIBA Inverter Protocol.

* Inter-drive communications are disabled when the MODBUS-RTU protocol is selected.

* This parameter is validated after resetting the inverter or rebooting the power supply.

● Setting of master and slave inverters for communication between inverters (setting of master and

slave) () ... Shipment setting = 

Assign one master inverter in the network. Other inverters should be the slave inverters.

*Specify only one inverter as the master. In case two or more inverters are designated for the

master inverter in the same network, data will collide.

- Setting to the master inverter

Set data desired for sending from the master side to the slave side.

:Master inverter(transmission of frequency commands) : Master inverter (transmission of

output frequency signals)

- Setting to the slave inverters

Set the desired action on the slave side that will be needed when the master trips.

: Sets the frequency command value to 0Hz. (Output frequency is limited by low-limit frequency)

: Normal operation is continued

(If an output frequency is set on the master side, the output frequency of the master side be-

comes 0Hz due to tripping and the frequency of commands to the slave side becomes 0Hz.)

: Makes an emergency stop (“E” trip).

(The method to stop follows the setting in “Emergency stop selection ()”

*This parameter is validated after resetting the inverter or rebooting the power supply.

• Communication waiting time () ... Shipment setting = 

- Setting to the master inverter

Set up more than 0.03 seconds as a transmitting interval on the master side to wait for the proc-

essing time on the slave side(= ).

● Speed setting mode selection () ... Shipment setting = : Built-in potentiometer

Designate a target of speed command input for the inverter to the parameter .

- Setting to the master inverter

Designate a number except for “: serial communication ” ( ≠).

- Setting to the slave inverters

Designate “: serial communication ” ( =).

E6581222

■ Relating communication parameters

Following parameters should be set or changed if necessary.

• Communication baud rate ()... Shipment setting = : 9600bps

Baud rate of all inverters in the network (master and slave) should be same network.

• Parity () ... Shipment setting = : Even parity

Parity of all inverters in the network (master and slave) should be same network.

• Communication error trip time() ... Shipment setting = 

Operation is continued by the last received command value in the case of a communication break-

down. To stop the operation of inverter, provide a communication time-out interval (ex. =)

to the slave inverters. The master inverter does not trip even though the communication breakdown

happens. To trip the master inverter, provide an interlock mechanism by installing a FL fault relay

point or the like from the slave side.

• Frequency point selection ()

Adjusted to the system.

See chapter “6.1 Speed proportional control” for details.

■ Setting example of parameters

Parameters relating to the master side (example)

Parameters relating to the slave side (example)







Master (transmission of output frequency

 Slave (0Hz command issued in case the master inverter

fails)

 Selection of communication protocol

(Toshiba inverter protocol)

 Communication time-out (ex. 1 second)

 Communication baud rate (same to the master side)

 Parity (same to the master side)

 Terminal block (ex. Driven by F, ST)

( Run and stop of operation is controlled with the frequency

reference value by setting the “run frequency”.)

(%) (100% at FH))

Selection of communication protocol

(Toshiba inverter protocol)

Communication baud rate

(ex. 19200bps)

Parity (even parity)

Example: Panel





 Example: Built-in potentiometer

 Communication waiting time

(ex. 30msec)

< For speed control >

 Serial communication

?

Adjusted to the system Point 1 setting (%)







Ditto

Point 2 frequency (Hz)

Point 2 setting (%)

Point 2 frequency (Hz)

E6581222

6.1. Speed proportional control

Various inclinations can be set by frequency point setting.

The frequency command value on the slave side during inter-drive communication can be expressed

by the following formulas.

If inter-drive communication is not selected (=), point conversion is not performed.

Point conversion is performed only when the command “S” is received.

(Ex.)

< unit > Frequency unit: 1=0.01(Hz), point setting unit: 1=0.01%

Maximum

frequency

()

Point 1

setting

()

Point 1 fre-

quency

()

Point 2

setting

()

Point 2

frequency

()

Frequency

(Fc)

Master (Fc)

Slave 1

100.00Hz

(10000)

50.00Hz

(5000)

－

100.00Hz

(10000)

0.00%

(0)

0.00Hz

(0)

100.00%

(10000)

100.00%

(10000)

90.00Hz

(9000)

45.00Hz

(4500)

Slave 2

100.00Hz

(10000)

0.00%

(0)

0.00Hz

(0)

80.00Hz

(8000)

40.00Hz

(4000)

Sending data from the master:

Master side fc×10000

5000×10000

Master send fc(%) =

= 5000

50%

Master side FH

10000

Slave frequency Command(Hz)=

Point 2 frequency(F813) - Point 1frequency(F812)

Point 2(F814) - point 1(F811)

x (Master command (%) - Point 1(F811)) + Point 1 frequency(F812)

By the point conversion process,

9000 − 0

10000 − 0

Slave 1: fc(Hz) =

× (5000 − 0)＋0 = 4500 = 45Hz

8000 − 0

10000 − 0

Slave 2: fc(Hz) =

× (5000 − 0)＋0 = 4000 = 40Hz

【Diagram of speed proportional control】

→<Inverter’s internal computation>

<Outside>←

(Note)fc=frequency reference, FH=Maximum frequency

Point conversion

(Hz)

Point2 Frequency()

Slave command (Hz)

Point1 Frequency()

Master FC

Slave command (Hz)

Master send data＝

×10000

Master FH

Master command (%)

Point1

()

Point2

（)

（％)

Master command (%)

F814−F812

F813−F811

Slavecommand(Hz) =

×(Master command(%)－F811）＋F812

E6581222

6.2. Transmission format for inter-drive communication

Data type is handled in hexadecimal notation and the transmission characters are treated with the

binary (HEX) code.

The transmission format is basically the same to the case of binary mode. S command is used and

the slave inverters do not return the data.

■ Master inverter (VF-S11) to slave inverter (VF-S11) (Binary mode)

Omission

“／”

INV-NO

1 byte

CMD

1 byte

Communication number

2 bytes

DATA

2 bytes

SUM

1 byte

(2FH)

Checksum range

Not omissible

1) INV-NO (1 byte)

2) CMD (1 byte)

: Inverter number

This is always excluded at the master inverter side at time of inter-drive communication, and

can be added when the user utilize this data for the purpose of proportional operation.

(When this code is added, only the inverter concerned will accept the data.)

: Command

53H(“S”) or 73(“s”) command ... command for inter-drive communication

When the master inverter is not tripping, this will be 53H(“S”).

When the master inverter is tripping, this will be 73H(“s”).

3) Communication number (2 bytes)

Communication number of frequency command (FA01).

: Data of frequency command value.

4) DATA (2 bytes)

(0000H to FFFFH (no range check))

As for the S command, see section 4.2 “Commands”, and see chapter “6 Inter-drive communication function” for the

communication of inverters.

E6581222

7. Communications parameters

The settings of communication-related parameters can be changed from the operation panel and the

external controller (computer). Note that there are two types of parameters: parameters whose set-

tings take effect immediately after the setting and parameters whose settings do not take effect until

the inverter is turned back on or reset.

Com-

munica-

tion

Default

setting

Title

Function

Adjustment range

Unit

Valid

Reference

Number.

0: 1200bps

1: 2400bps

2: 4800bps

3: 9600bps

4: 19200bps

0: NON (No parity)

1: EVEN (Even parity)

2: ODD (Odd parity)

Communication

baud rate

0800

After reset.

Section 7.1





0801

Parity

0802

0803

Inverter number

0-255

Real time

Section 7.2

Section 7.3





Communication

error trip time

Communication

waiting time

0: (disabled)

1-100

0805

0.00-2.00s

0.01s

0.00

Real time

Section 7.4



0: Slave inverter (0 Hz command issued

in case the master inverter fails)

Setting of master

and slave inverters

1: Slave inverter (Operation continued in

case the master inverter fails)

for communication 2: Slave inverter (Emergency stop trip-

0806

After reset.



Chapter 6

between inverters

(setting of master

and slave)

ping in case the master inverter fails)

3: Master inverter (transmission of fre-

quency commands)

4: Master inverter (transmission of output

frequency signals)

0811

0812

0813

0814

Point 1 setting

0-100

0.01Hz

Real time









Point 1 frequency 0.0-500.0Hz

Point 2 setting 0-100

0.0

Section 6.1

Chapter 3

100

60.0

Point 2 frequency 0.0-500.0Hz

Selection of com-

munication proto-

col

0.01Hz

0: Toshiba inverter protocol

1: Modbus-RTU protocol

0829

0870

After reset.





0: No selection

Block write data 1

Block write data 2

Block read data 1

1: Command information 1

2: Command information 2

3: Frequency command

4: Output data on the terminal board

5: Analog output for communications

0: No selection

After reset.

0871



0875

0876

0877

0878









1: Status information

Section

4.1.3

Block read data 2 2: Output frequency

3: Output current

Block read data 3

4: Output voltage

5: Alarm information

Block read data 4

After reset.

Real time

6: PID feedback value

7: Input terminal board monitor

8: Output terminal board monitor

9: VIA terminal board monitor

10: VIB terminal board monitor

0879

0880

Block read data 5

Free notes





0-65535

Section 7.5

E6581222

7.1. Communication baud rate() , Parity bit()

•Communication baud rate and parity bit should be uniform inside the same network.

•This parameter is validated by resetting the power supply.

7.2. Inverter number()

This parameter sets individual numbers with the inverters.

Inverter numbers should not be duplicate inside the same network.

Receiving data will be canceled if inverter numbers specified in individual communications and set by

a parameter do not match.

This parameter is validated from the communication after change

Data range: 0 to 255 (Initial value: 0)

Parameters can be selected between 0 and 255. Note that the communication protocols limit in-

verter numbers as follows:

● TOSHIBA Inverter Protocol ASCII mode: 0 to 99

● TOSHIBA Inverter Protocol Binary mode: 0 to 63

● MODBUS Protocol: 0 to 247

E6581222

7.3. Timer function()

This function detects any normal data that is not detected even once within an arbitrarily predeter-

mined time.

The timer function is used to detect breaks in cables during communications and to trip an inverter

() if the inverter has received no data within the time specified using this function. If the in-

verter number does not match or if a format error occurs, preventing the inverter from returning data

to the computer, this function will assume that the inverter has not received any data.

■ How to set the timer

The communication error trip time parameter () is set to 0 (timer off) by default.

* Timer adjustment range

About 1 sec. (01H) to about 100 sec. (64H) / Timer off (0H)

■ How to start the timer

If the timer is set from the operation panel, it will start automatically the instant when communication

is established for the first time after the setting.

If the timer is set from the computer, it will start automatically the instant when communication is es-

tablished after the setting.

If the timer setting is stored in the EEPROM, the timer will start when communication is established

for the first time after the power has been turned on.

Note that, if the inverter number does not match or if a format error occurs, preventing the inverter

from returning data, the timer function will assume that no communication has taken place and will

not start.

■ How to disable the timer

To disable the timer, set its parameter to 0.

Ex.:To disable the timer function from the computer (To store the timer setting in the EEPROM)

Computer → Inverter

Inverter → Computer

(W08030)CR

(W08030000)CR

... Sets the timer parameter to 0 to disable it.

■ Timer

Time-out period

The timer measures the time

elapsed before the inverter ac-

knowledges receipt of data after it

acknowledged receipt of the previ-

ous data.

Computer link

PC → INV

INV → PC

E6581222

7.4. Setting function of communication waiting time ()

Use this function for the following case:

When the data response from the inverter is too quick after the PC had sent the data to the inverter,

PC process cannot get ready to receive the data, or when the RS485/RS232C converter is used,

changeover of sending and receiving data takes much time in the converter process.

The case of " Inter-drive communication ", set up more than 0.03 seconds as a transmitting interval

on the master side to wait for the processing time on the slave side(= ).

* This function, however, does not operate in case the MODBUS-RTU protocol is selected in com-

munication protocol selection. (=)

Functional specification:

A time for sending data is prolonged longer than the preset time, until the inverter returns the data to

the PC, after it finishes receiving the data (in case of an inter-drive communication, until the inverter

returns the next data to the PC, after it has sent the data.) In case the inverter's processing capacity

requires longer setting time, the value more than this time will be the set value. (The parameter mak-

es the inverter wait for more than the set time.)

Setting range:  to seconds (10ms to 2000ms)

If the set value is , this function becomes invalid and the interval time for sending data is set to the

maximum capacity of the inverter. To obtain a quick response for sending data, set value .

Time from the confirmation of the

data reception (transmission, in the

Time elapses more than

transmission waiting time.

case of inter-drive communication)

Computer link

→

PC INV

to the transmission of data, is

adjusted.

→

INV PC

If the inverter's processing time

requires longer time than the

transmission waiting time, the time

is prolonged.

Time elapses more than the

transmission waiting time.

Inter-drive

communication

Master INV

to Slave INV

Master INV to

Slave INV

7.5. Free notes()

This parameter allows you to write any data, e.g., the serial number of each inverter or parameter

information, which does not affect the operation of the inverter.

E6581222

8. Commands and monitoring from the computer

Across the network, instructions (commands and frequency) can be sent to each inverter and the

operating status of each inverter can be monitored.

8.1. Communication commands (commands from the computer)

■ Communication command (Communication number: FA00)

Commands can be executed on inverter frequencies and operation stop through communications.

The VF-S11 series can enable command and frequency settings through communications irrespec-

tive of settings of the command mode () and frequency mode (). However, if “48:

Forced change from communication to local,” “52: Forced operation,” or “53: Fire speed” is set by in-

put terminal function selection ( to ), a change to a command other than communica-

tion and to a frequency command is feasible through a contact on the terminal board.

Once the communication command (FA00) is set to enable communication command priority and

frequency priority, both priorities will be enabled unless OFF is set, power is turned off or is reset, or

standard shipment setting () is selected. Emergency stop, RY terminal output hold and OUT

terminal output hold are always enabled even though communication command priority is not set.

Table 1 Data construction of communication commands (communication number: FA00)

bit Specifications

S7 S9/nC1/S11

Remarks

0 Preset speed ^{operation Preset speed operation is disabled or}9

Preset speed operation can be

disabled or a preset speed op-

eration frequencies (1-15) can

be specified by combining 4 bits

variously.

frequencies 1

preset speed operation frequencies (1-

15) are set by specifying bits for preset

speed operation frequencies 1-4.

(0000: Preset speed operation OFF,

001-1111: Setting of preset speed

operation frequencies (1-15))

1 Preset speed operation

frequencies 2

2 Preset speed operation

frequencies 3

3 Preset speed operation

frequencies 4

4 Motor selection (1 or 2)

(THR 2 selection)

Motor 1

(THR 1)

Motor2

(THR2)

THR1 : PT=set value, vL, vb, tHr

THR2 : PT=0, F170, F172, F173

5 PI control

Normal operation

Accelera-

tion/deceleration

pattern 1 (AD1)

OFF

PI OFF

6 Acceleration/deceleration

pattern selection (1 or 2)

(AD2 selection)

Accelera-

tion/deceleration

pattern 2 (AD2)

AD1 : ACC, DEC,

AD2 : F500, F501

7 DC braking

Forced DC braking 9

8 Jog run

OFF

Jog run

9 Forward/reverse

selection

run

Forward run

Reverse run

10 Run/stop

Stop

Standby

OFF

Run

11 Coast stop command

12 Emergency stop

13 Fault reset

Coast stop

Emergency stop 9

“E” trip

OFF

Reset

No data is returned from the

inverter.

14 Frequency priority selec-

OFF

Enabled

Enabled regardless of the set-

ting of 

tion

15 Command priority selec-

tion

Enabled regardless of the set-

ting of 

Note: For the reset command, no data will be returned.

Ex.: Forward run: (PFA008400) CR

1 is specified for bit 15 (communication command: enabled) and bit 10 (operation command).

BIT15

BIT0

FA00:

Ex.: Reverse run: (PFA008600) CR, (PFA00C600) CR

8600H : To disable frequency instructions from the computer

C600H : To enable also frequency instructions from the computer

E6581222

„ Communication command2 (Communication Number : FA20)

This command is enabled only when the communication command is enabled. Set Bit 15 of Com-

munication Command 1 (communication Number: FA00) to “1” (enable). When enabling the com-

munication command by Communication Command 1, commands by communications can be given

the priority irrespective of the setting of the command mode selection parameter (). How-

ever, if “48: Forced change from communication to local,” “52: Forced operation,” or “53: Fire speed”

is set by input terminal function selection ( to ), the enabled command and frequency

will be given the priority.

Once enabled, this setting will be enabled till disable is set (0 setting), power is turned off or is reset,

or standard shipment setting () is selected.

Table 2 Data construction of serial communication command 2 (FA20)

Bit

Function

Remarks

(Reserved)

－

electric power quantity

reset

electric power quantity

(FE76, FE77) reset

ＯＦＦ

Reset

(Reserved)

－

Acceleration/deceleration

pattern selection 1

Select Acceleration/ de-

celeration 1 - 3 by combi-

nation of two bits

00: Acceleration/deceleration 1

01: Acceleration/deceleration 2

10: Acceleration/deceleration 3,

11: Disabled (Accelera-

AD1: ACC, DEC

AD2: F500, F501

AD3: F510, F511

Acceleration/deceleration

pattern selection 2

tion/deceleration 3)

(Reserved)

－

Over-current stall level

change

OC1: F601

OC2: F185

OC stall 1

OC stall 2

(Reserved)

－

Note: The acceleration/deceleration change command ORs with Bit 6 of Communication number

FA00. Set Bit 6 of FA00 to “0” and use FA20 when changing acceleration/deceleration in

three types. Acceleration/deceleration 3 will be set when both Bit 8 of Communication num-

ber FA20 (or Bit 6 of Communication number FA00) and Bit 9 of Communication number

FA20 are set.

E6581222

„ Communication command3 (Communication number: FA26)

The RY Terminal Output Hold Command and OUT Terminal Output Hold Command are always en-

abled even though communication command priority is not set.

Table 3 Data construction of Serial Communication Command 3 (FA26)

Bit

Function

Remarks

Once it is turned

on, a RY terminal

holds that condi-

tion.

Always enabled even if

communication command

is not enabled

RY terminal output hold

OFF

Once it is turned

on, an OUT ter-

minal holds that

condition.

Always enabled even if

communication command

is not enabled

OUT terminal output hold

OFF

(Reserved)

－

„ Frequency setting from the computer (communication number: FA01)

Setting range: 0 to Maximum frequency ()

This frequency command is enabled only when the frequency command by communication is en-

abled by setting “serial communication (“3” for Communication Number FA04) by the speed com-

mand selection parameter () or setting command priority (Bit 14 of Communication Number

FA00 to “1” (enable)) by the communication command. In this case, frequency commands by

communication will be enabled independent of  setting. However, enabled commands and

frequencies are given the priority if “48: Forced change from communication to local,” “52: Forced

operation,” or “53: Fire speed” is set by input terminal function selection ( to ).

Once enabled, this frequency setting will be enabled till disable is set (0 setting), power is turned off

or is reset, or standard shipment setting () is selected.

Set a frequency by communication hexadecimal in Communication Number FA01. (1 = 0.01Hz

(unit))

Example: Operation frequency 80Hz command (PFA011F40) CR

80Hz = 80 ÷ 0.01 = 8000 = 1F40H

E6581222

8.2. Monitoring from the computer

This section explains how to monitor the operating status of the inverter from the computer.

„ Monitoring of the operation frequency from the computer (FE00, FD00)

Operation frequency (frequency immediately before the occurrence of a trip):

Communication Number FE00 (Minimum unit: 0.01 Hz)

Operation frequency (current frequency): Communication Number FD00 (Minimum unit: 0.01 Hz)

Ex.:Monitoring of operation frequency (during 50 Hz operation) ... (1388H = 5000d, 5000 x 0.1 = 50

Hz)

Computer → Inverter

Inverter → Computer

(RFD00) _CR

(RFD001388) _CR

„ Inverter operating status (FE01, FD01)

Operating status (status immediately before the occurrence of a trip):

Communication Number FE01

Communication Number FD01

Operating status (current status):

Table 2 Data construction of inverter operating status (FE00/FD00) (*: FD01 supports the VF-S11 and later models.)

Bit Specifications

0 Failure FL

S7 S9 S11/nC1

Remarks

No output

Output in prog- - -

ress

1 Failure

Not tripped

Tripped

- -

Trip statuses include 

and trip retention status.

2 Alarm

No alarm

Alarm issued - -

3 Reserved

- -

4 Motor section (1 or 2)

(THR 2 selection)

5 PI control OFF

Motor 1 (THR 1) Motor 2 (THR 2) - 9

THR1: PT=set value, vL, vb, Thr

THR2:PT=0, F170, F172, F173

PI control

permitted

PI control

prohibited

- 9

6 Acceleration/deceleration

pattern selection (1 or 2)

Acceleration/

deceleration

Acceleration/ 9 9

AD1 :ACC, DEC,

AD2 :F500, F501

deceleration

pattern 1 (AD 1) pattern 2 (AD 2)

7 DC braking

OFF

Forced DC

braking

9 9

8 Jog run

OFF

Forward run

Stop

Jog run

9 Forward/reverse run

10 Run/stop

Reverse run 9 9

Run

9 9

- 9

11 Coast stop (ST=OFF)

12 Emergency stop

ST=ON

ST=OFF

Not emergency Emergency stop - 9

stop status

status

13 Standby ST=ON

Start-up process

Standby

- -

Standby: Initialization completed,

not failure stop status, not alarm

stop status (MOFF, LL forced

stop or forced stop due to a

momentary

power

failure),

ST=ON, and RUN=ON

14 Standby

Start-up process

Standby

- -

Standby: Initialization completed,

not failure stop status, and not

alarm stop status (MOFF, LL

forced stop or forced stop due to

a momentary power failure)

15 Reserved

- -

E6581222

„ Inverter operating status3 (FE42, FD42)

Operating status 3(status immediately before the occurrence of a trip):

Communication Number FE42

Communication Number FD42

Operating status 3(current status):

Bit

Function

(Reserved)

－

Remarks

Electric Power Counting

(FE76,FE77) status

(Reserved)

Counting

Resetting

－

(Reserved)

Acceleration/deceleration

pattern selection1

Acceleration/deceleration

pattern selection2

(Reserved)

00:Acceleration/deceleration 1

01:Acceleration/deceleration 2

10:Acceleration/deceleration 3

Acceleration/ decelera-

tion 1 - 3 can be speci-

fied by combination of

two bits

－

(Reserved)

Over-current stall level change

OC stall 1

OC stall 2

OC1:F601

OC2:F185

－

(Reserved)

„ Inverter operating status4 (FE49, FD49)

Operating status 4(status immediately before the occurrence of a trip):

Communication Number FE49

Operating status 4(current status):

Communication Number FD49

Bit

Function

Remarks

RY terminal output hold

OUT terminal output hold

OFF

－

Holding

－

2 to 15 (Reserved)

E6581222

„ Inverter operating command mode status (FE45)

The monitor of the command mode that the present condition is enabled

Data

Enabled command

Terminal board

Operation panel

Serial communication

„ Inverter operating frequency mode status (FE46)

The monitor of the frequency command mode that the present condition is enabled

Note that Preset speed operation frequencies is given the priority independent of the frequency

mode, in which case this monitor will be disabled, in case Preset speed operation frequencies is se-

lected.

Data

Enabled frequency

Potentiometer at Operation panel

VIA

VIB

Operation panel

Serial communications

TB up down frequency

VIA + VIB

E6581222

„ Alarm information monitor (FC91)

Remarks

Bit

Specifications

Over-current alarm

(Code displayed on the panel)

Normal

Alarming

 flickering

 flickering

Inverter overload alarm

Motor overload alarm

Overheat alarm

 flickering

 flickering

 flickering

Overvoltage alarm

Main circuit undervoltage alarm

(Reserved)

Low current alarm

Normal

Alarming

Over-torque alarm

Braking resistor overload alarm

Cumulative operation hours

alarm

11 (Reserved)

12 (Reserved)

13 Main-circuit voltage error alarm

Normal

Alarming

“ flickering

At the time of the instant black-

Decelerating, Related: F256 setting

stopping

out, Forced deceleration/stop

An automatic stop during the

lower limit frequency continu-

Decelerating, Related: F302 setting

stopping

ance

„ Cumulative operation time alarm monitor (FE79)

Bit

Specifications

Fan life alarm

Remarks

Normal

Alarm issued

Circuit board life alarm

Main-circuit capacitor life alarm

User set alarm

4-15 (Reserved)

E6581222

„ Trip code monitor (current status: FC90: historic records: FE10 to FE13)

Data

(hexadeci-

mal number)

(decimal

number)

Code

Description

No error

nerr

oc1

Over-current during acceleration

Over-current during deceleration

Over-current during constant speed operation

Over-current in load at startup

Short circuit in arm

oc2

oc3

ocl

oca

Input phase failure

ephi

epho

op1

Output phase failure

10 Overvoltage during acceleration

11 Overvoltage during deceleration

12 Overvoltage during constant speed operation

13 Over-LOAD in inverter

14 Over-LOAD in motor

op2

op3

ol1

ol2

16 Overheat trip

17 Emergency stop

18 EEPROM fault 1 (writing error)

19 EEPROM fault 2 (reading error)

20 EEPROM fault 3 (internal fault)

21 RAM fault

eep1

eep2

eep3

err2

err3

err4

err5

err7

22 ROM fault

23 CPU fault

24 Communication error trip

26 Current detector fault

27 Optional circuit board type error

29 Small-current trip

err8

30 Trip due to undervoltage in main circuit

32 Over-torque trip

up1

34 Ground fault trip (hardware detection)

37 Overcurrent flowing in element during acceleration

38 Overcurrent flowing in element during deceleration

39 Overcurrent flowing in element during operation

41 Inverter type error

ef2

oc1p

oc2p

oc3p

etyp

oh2

46 External thermal input

47 PM motor step-out

sout

e-18

e-19

e-20

e-21

etn1

VIA cable break in an analog signal cable

51 CPU fault

52 Excess torque boost

53 CPU fault

84 Auto-tuning error

E6581222

„ Inverter model (capacity) code (FB05)

Data

(decimal number)

Model

(hexadecimal number)

VFS11-2002PM-AN

VFS11-2004PM-AN

VFS11-2007PM-AN

VFS11-2015PM-AN

VFS11-2022PM-AN

VFS11-2037PM-AN

VFS11-2055PM-AN

VFS11-2075PM-AN

VFS11S-2002PL-AN

VFS11S-2004PL-AN

VFS11S-2007PL-AN

VFS11S-2015PL-AN

VFS11S-2022PL-AN

VFS11-4004PL-AN

VFS11-4007PL-AN

VFS11-4015PL-AN

VFS11-4022PL-AN

VFS11-4037PL-AN

VFS11-4055PL-AN

VFS11-4075PL-AN

VFS11-4110PL-AN

VFS11-4150PL-AN

VFS11-2110PM-AN

VFS11-2150PM-AN

108

109

E6581222

8.3. Control of input/output signals from communication

The input terminals, output terminals, analog input and output signals of the inverters can be con-

trolled by communications.

„ Terminal Output Data (FA50)

The output terminals on the inverters can be controlled directly by communications.

Before controlling them, select Function Number 38 to 41 in Output Terminal Function Selection

( - , ,). Set data (0 or 1) can be output to the output terminals by

setting data of Bit 0 and Bit 1 of terminal output data (FA50) by communications.

Data construction of Terminal Output Data (FA50)

Bit

Output Terminal Function

Specified data output 1

OFF

(Output terminal selection Number : 38, 39)

Specified data output 2

OFF

(Output Terminal Selection Number : 40, 41)

－

2 to 15

Example : Controlling only Terminal OUT1 by communication

Set “38” (specified data output 1 [positive logic]) in Output Terminal Selection 1 () in

advance and set “0001H” in FA50 to turn Terminal OUT1 on.

BIT15

BIT0

FA50:

„ Analog Output Data (FA51)

The analog terminals on the inverters, such as Terminal FM can be controlled directly by communi-

cations.

Select “18” (communication analog output) in Analog Terminal Connection Selection Parameters

(example: FM terminal connection meter selection []) before controlling them.

Data set in Analog Output Data (FA51) can be output from the selected analog terminal. The data

adjustment range is 0 to 1023 (10bit resolution) . Refer to “Meter Setting and adjustment” in the in-

struction manual for inverters for the complete information.

E6581222

„ Input terminal board status (FD06, FE06)

Input terminal board status (status immediately before the occurrence of a trip):

Communication Number FE06

Communication Number FD06

Input terminal board status (current status):

In case “0: No assignment function” is selected in function selection, inverter operations will not be

affected even when terminals are turned on and off. Therefore, the terminals can be used as input

terminals for customer’s own use.

The input terminal function selection parameter is used to select a function for each input terminal.

When monitoring the operating status, check what function is assigned to each internal terminal.

Data construction of input terminal board (FE06)

Bit

Terminal name (extended)

Function (parameter title)

Input terminal selection 1 (f111)

Input terminal selection 2 (f112)

Input terminal selection 3 (f113)

Input terminal selection 4 (f114)

Input terminal selection 5 (f115)

Input terminal selection 6 (f116)

Input terminal selection 7 (f117)

Input terminal selection 8 (f118)

OFF

RES

VIB *1

VIA *1

8 ~ 15

^*1: It is valid only when it is selected as contact input by .

It is effective only when it is chosen with F109 for input of a contact point.

Ex.: FE06 data when the F and S1 terminals are ON: 0009H

BIT15

BIT0

FE06:

„ Output terminal board status (FD07, FE07)

Output terminal board status (status immediately before the occurrence of a trip):

Communication Number FE07

Communication Number FD07

Output terminal board status (current status):

The output terminal function selection parameter is used to select a function for each output terminal.

When monitoring the operating status, check what function is assigned to each output terminal.

Data construction of output terminal board (FD07,FE07)

Bit

Terminal name

Function (parameter title)

Output terminal selection1(f130)

Output terminal selection1(f131)

Output terminal selection3(f132)

OUT

OFF

3 ∼ 15

Ex.: FE07 data when both the RY and OUT terminals are ON: 0003H

BIT15

BIT0

FE07:

E6581222

„ Analog Input Monitors (FE35, FE36)

Analog input value VIA monitor: “Communication Number FE35”

Analog input value VIB monitor: “Communication Number FE36”

Data: 10bit resolution (Data range 0 to 1023)

These monitors can also be used as an A/D converter independent of inverter control.

Setting except for “VIA” as the frequency setting mode will allow analog input (VIA) as an A/D con-

verter independent of inverter control.

Setting other than “VIB” as the frequency setting mode will allow analog input (VIB) as an A/D con-

verter independent of inverter control.

Note, however, input data to analog terminals will be regarded as frequency commands in case

analog input is selected in frequency setting mode selection.

E6581222

8.4. Utilizing panel (LEDs and keys) by communication

The VF-S11 can display data that is not related to the inverters through an external controller or other

means. Input by key operations can also be executed. The use of inverter resources reduces the

cost for the entire system.

8.4.1. LED setting by communication

Desired LED information can be displayed by communication.

Set the standard monitor display selection parameter to “communication LED setting (=).”

When in the standard monitor mode status, LED information is displayed according to the setting of

Communication Number FA65. (Is set to Communication Number FA65 = 1 and initial data “dAtA”

in shipment setting)

In case of an alarm while setting communication LEDs, the alarm display will alternately display

specified LED data and alarm message.

For example, if an over-current alarm (alarm display “”) occurs while “.” is displayed by this

function, “” and “.” will be displayed alternately.

Commu-

nication

Number.

FA65

Shipment

setting

Parameter Name

Range

Select display by communication

0: Numeric data (FA66, FA67, FA68)

1: ASCII data 1 (FA70, FA71, FA72, FA73,

FA74)

2: ASCII data 2 (FA75, FA76, FA77, FA78,

FA79)

FA66

FA67

Numeric display data

(Enabled if FA65=0)

Decimal point position

(Enabled if FA65=0)

0-9999

0: No decimal point (xxxx)

1: First digit below decimal point (xxx.x)

2: Second digit below decimal point (xx.xx)

0:Hz off, % off, 1:Hz on, % off

2:Hz off, % on, 3:Hz on, % on

0 – 127 (0 – 7FH)

FA68

FA70

LED data 0 for unit

(Enabled if FA65=0)

ASCII display data 1, first digit from

left

64H (’d’)

41H (’A’)

74H (’t’)

41H (’A’)

(See ASCII LED display code chart)

(Enabled if FA65=1)

ASCII display data 1, second digit

from left

(Enabled if FA65=0)

ASCII display data 1, third digit from

left

FA71

FA72

FA73

0 – 256 (0 – FFH)

(See ASCII LED display code chart)

0 – 256 (0 – FFH)

(See ASCII LED display code chart)

(Enabled if FA65=1)

ASCII display data 1, fourth digit from 0 – 127 (0 – 7FH)

left

(See ASCII LED display code chart)

(Enabled if FA65=1)

LED data 1 for unit

(Enabled if FA65=1)

ASCII display data 2, first digit from

left

FA74

FA75

0:Hz off, % off, 1:Hz on, % off

2:Hz off, % on, 3:Hz on, % on

0 – 127 (0 – 7FH)

30H (’0’)

(See ASCII LED display code chart)

(Enabled if FA65=2)

ASCII display data 2, second digit

from left

(Enabled if FA65=2)

ASCII display data 2, third digit from

left

(Enabled if FA65=2)

ASCII display data 2, fourth digit from 0 – 127 (0 – 7FH)

left

FA76

FA77

FA78

FA79

0 – 256 (0 – FFH)

(See ASCII LED display code chart)

30H (’0’)

0 – 256 (0 – FFH)

(See ASCII LED display code chart))

(See ASCII LED display code chart)

(Enabled if FA65=2)

LED data 2 for unit

(Enabled if FA65=2)

0:Hz off, % off, 1:Hz on, % off

2:Hz off, % on, 3:Hz on, % on

E6581222

„ Block Communication Function for LED Display

To display LED data for ASCII display that is synchronized to each digit, set data for each digit and

validate this set data by display selection by communication (Communication Number FA65). Syn-

chronization can also be achieved by batch writing LED data parameters after changing the following

block communication mode parameters and by sending data by block communication.

Writing in the block communication function will be writing in the RAMs only due to the EEPROM life

for write operations. The LED data will reset to the initial value ““ when the power is turned

off, in failure resetting or when standard shipment settings are set.

■ Parameter Setting

“Block communication mode (Communication Number FA80)”

Setting range: 0, 1 (Initial value 0)

0: Block communication parameters ( - ) is used

1: LED display ASCII data is used (When writing, ASCII display data 1 [Communication Number

FA70 - FA74], when reading, LED data displayed before change)

*To validate LED data set by using LED display block communications, set standard monitor display

selection to “communication LED select ( = ) and display selection by communication to

“ASCII data 1 (Communication Number FA65).

■ Format

The format is the same as that used in the usual block communication mode. (For the detail infor-

mation, see “4.1.3 Block communication transmission format”) The block communication parame-

ters ( - ) will become invalid. Write data will become ASCII display data 1 (Commu-

nication Number :FA70 - FA74) fixed. LED display data that is actually being output will be read

during reading. The specification range for write operations is 0 to 5.

■ Example

Assuming:

Communication LED selection ( = ) for standard monitor display selection.

ASCII data 1 (Communication Number:FA65 = 1) for display selection by communication.

LED display ASCII data (Communication Number: FA80 = 1) for the block communication mode.

Current LED display status is display of initial value “”

PC → Inverter: 2F580505003000310032003300035A・・・“0123” display command

Inverter → PC: 2F59050000640041007400410000E7 ・・ “dAtA” displayed before change

E6581222

■ ASCII LED display data code (00H-1FH are blank.)

Hex Code Display Char. Hex Code

Display

BLANK

Char. Hex Code

Display

Char. Hex Code

Display

Char.

00H

01H

02H

03H

04H

05H

06H

07H

08H

09H

0AH

0BH

0CH

0DH

0EH

0FH

10H

11H

12H

13H

14H

15H

16H

17H

18H

19H

1AH

1BH

1CH

1DH

1EH

1FH

BLANK

20H

21H

22H

23H

24H

25H

26H

27H

28H

29H

2AH

2BH

2CH

2DH

2EH

2FH

30H

31HT

32H

33H

34H

35H

36H

37H

38H

39H

3AH

3BH

3CH

3DH

3EH

3FH

40H

41H

42H

43H

44H

45H

46H

47H

48H

49H

4AH

4BH

4CH

4DH

4EH

4FH

50H

51H

52H

53H

54H

55H

56H

57H

58H

59H

5AH

5BH

5CH

5DH

5EH

5FH

BLANK

60H

61H

62H

63H

64H

65H

66H

67H

68H

69H

6AH

6BH

6CH

6DH

6EH

6FH

70H

71H

72H

73H

74H

75H

76H

77H

78H

79H

7AH

7BH

7CH

7DH

7EH

7FH

BLANK

(

)

BLANK

DGP

[

DGP

{

BLANK

;

＼

]

}

BLANK

*Dots to show decimal points and other uses can be added by setting (80H) Bit 7 (highest bit).

Example: “0.” to display “60.0” can be added by “30H + 80H = B0H.”

E6581222

8.4.2.Key utilization by communication

The VF-S11 can use the panel keys on the inverters through external communications. This func-

tion is available with CPU version 1 (Communication Number: FE08) = 104 or higher.

■ Key Monitoring Procedure

Set panel key selection (Communication Number: FA10) to “1” to set the external key mode. How-

ever, if communication duration is less than 1sec to avoid an inverter operation shutdown in commu-

nication disruption, communication must always be maintained, such as monitoring key data and

LED data to automatically reset inverter operations to inverter key operation (FA10 = 0). Set to the

external communication key mode (FA10 = 1) to disable the key function of the inverters so that in-

verter operation will not be affected by pressing of the keys on the inverters. By monitoring key in-

formation, which is input by the keys on the inverters in this condition, through inverter key data

(Communication Number; FC01), the keys on the inverters can be operated through a controller and

other devices.

* When the key mode is the external key mode, key operation as an inverter function is disabled and

the inverters cannot be stopped by pressing the STOP key to stop inverter operation. Enable

emergency stop through an external terminal or other device when an inverter stop is desired.

Panel Key Selection (Communication Number:FA10)

The panel key selection parameter (Communication Number; FA10) discriminates which keys are to be used, panel keys

on the inverters or keys sent by external communications, as panel keys used in panel processing of the inverters.

Communication No.：FC01

Panel key data of inverters

FA10=”0”

Communication No.：FC00

Key data for inverter

control panel processing

Communication No.：FA11

FA10=”1”

External communication

key data

Keys on inverters enabled (Communication Number; FA10 = 0):

Key data: Data of keys on inverters (Communication Number : FC01)

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

Not

defined

KPP

ENT

MON

DOWN

STOP

RUN

“KPP” for Bit 7 indicates that panel keys are mounted on the inverters.

External keys enabled (Communication Number; FA10 = 1):

Key data: External key data (Communication Number: FA11)

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

ENT

MON

DOWN

STOP

RUN

Key monitoring (Communication Number : FC00):

Information of the enabled keys on the inverters can be monitored.

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

KPP

ENT

MON

DOWN

STOP

RUN

“KPP” for Bit 7 indicates that panel keys are enabled on the inverters.

E6581222

9.Parameter data

Explanation of parameters for VF-S11 series is described here. For communication purposes, see

the parameter list on inverter's instruction manual regarding the communication number, adjustment

range and so forth.

■ Referring to the parameter list

Minimum

Com-

setting unit

Default

setting

User

Title

auh





munica-

tion No.

Function

unit

Adjustment range

Reference

4.1.4

Panel/Com

munication

setting

Displays

parameters

groups of five in the reverse

order to that in which their

settings were changed.

* (Possible to edit)

History function

0: Disabled (manual)

1: Automatic

Automatic ac-

celera-

0000

0001

5.1.1

5.2

2:Automatic (only at accelera-

tion)

tion/deceleration

0:Disabled

1:Automatic torque boost +

autotuning

Automatic tor-

que boost

2:Vector control + auto-tuning

3:Energy saving + auto-tuning

　　　　　　　　　　　　　　　　　　　　　　　：

Acceleration

0009

0.1/0.1

0.0-3200

10.0

5.1.2



time1

：

- The summary of parameter list relating to the communication is as follows.

(1) “Title” means the display on the inverter panel.

(2) “Communication number” is affixed to each parameter that is necessary for designating the parameter for com-

munication.

(3) "Adjustment range" means a data range adjustable for a parameter, and the data cannot be written outside the

range. The data have been expressed in the decimal notation. For writing the data through the communication

function, take the minimum setting unit into consideration, and use hexadecimal system.

(4) "Minimum setup unit" is the unit of a single data (when the minimum unit is "-", 1 is equal to 1).

For example, the "minimum setup unit" of acceleration time () is 0.01, and 1 is equal to 0.01s. For setting a

data to 10 seconds, transmit 03E8h [10÷0.01=1000d=03E8h] by communication.

E6581222

■

Command parameters

For those parameters that contain data only in the RAM and not in the EEPROM, their data return to

initial values when the power is turned off, in failure resetting, or when standard shipment settings

are set. Note that parameters without data storage in the EEPROMs will be written in the RAMs

only even if the command W (writing in EEPROMs and RAMs) is executed.

■ Commands 　　　　　　　　　　　　　　　　　　　　　　　　　NOTE : Data is expressed in decimal notation.

Communica-

Min.

Setting

Unit

Write

During

Operation

Adjustment Range

Initial

Value

EEP

ROM

tion

Num-

ber.(HEX)

Function

FA00 Command 1 (Communication) 0 to 65535

yes None

－

＊

FA01 Operation frequency command 0 to Max. frequency 0.01Hz

yes None

＊

()

value (Communication)

FA03 Operation frequency command Low-limit frequency 0.01Hz

yes Available

value (Panel)^＊

() to High-limit

frequency ()

0 to 1

Panel key selection^＊

－

FA10

yes None

FA11 External communication key

0 to 65535

data^＊

FA20 Command 2 (Communication) 0 to 65535

yes None

－

＊

FA26 Command 3 (Communication) 0 to 65535

＊

Terminal output data^＊

FA50

FA51

0 to 65535

yes None

Analog output data^＊

0 to 1023

(10-bit resolution)

FA65 Select display by communica- 0 to 2

yes Available

－

tion^＊

Numerical display data^＊

FA66

FA67

FA68

0-9999

0 to 2

yes Available

Decimal point position^＊

－

LED data for unit 0^＊

0 to 3

FA70 ASCII display data 1

0 to 127

100

(‘d’)

First digit from left^＊

FA71 ASCII display data 1

Second digit from left^＊

0 to 255

0 to 127

(‘A’)

yes Available

－

FA72 ASCII display data 1

116

(‘t’)

Third digit from left^＊

FA73 ASCII display data 1

(‘A’)

Fourth digit from left^＊

LED data for unit1^＊

－

FA74

0 to 3

yes Available

FA75 ASCII display data 2

0 to 127

(‘0’)

First digit from left^＊

FA76 ASCII display data 2

Second digit from left^＊

0 to 255

0 to 127

(‘0’)

yes Available

－

FA77 ASCII display data 2

(‘0’)

Third digit from left^＊

FA78 ASCII display data 2

(‘0’)

Fourth digit from left^＊

LED data for unit 2^＊

－

FA79

0 to 3

0 to 1

yes Available

Block communication mode^＊

FA80

¹: Enable the communication command or communication frequency setting before setting these

parameters are set. Otherwise, the parameters will not function. See “8.1 Command by com-

munication” for the method to enable them.

＊

²: Note that the Communication Number for operation frequency command values (panel) is FA02

in the VF-S7 and VF-S9 series.

³: See “8.3 Control of input/output signals from communication” for the detail information.

⁴: See “8.4 Utilizing panel (LEDs and keys) by communication” for the detail information.

＊

E6581222

■ Monitor parameters * These parameters are read-only (monitor-only) parameters.

Communi-

Title

Function

Monitor of key data (Effective data)

Unit

Remarks

cation No.

FC00

FC01

FC90

FC91

FD00

FD01

FD06

FD07

FD42

FD49

FE00

FE01

FE02

FE03

FE04

FE05

FE06

FE07

FE08

FE09

FE10

FE11

FE12

FE13

FE14

FE15

FE16

FE18

FE20

FE21

FE22

FE26

FE27

FE29

FE30

FE35

See 8.4.

See 8.2.

Monitor of inverter keypad data

Trip code

Alarm code

Operation frequency (current frequency)

Inverter status (current status)

Input terminal information (current information)

Output terminal information (current information)

Inverter status2 (current status)

Inverter status3 (current status)

Operation frequency ^*5

Inverter status ^*5

0.01Hz

See 8.2.

See 8.3.

See 8.2.

0.01Hz

See 8.2.

Operation frequency command (actual instruction) ^*5

Load current

0.01Hz

0.01%

Input Voltage

Output voltage ^*5

Input terminal information ^*5

Output terminal information ^*5

CPU1 version

0.01%

See 8.3.

EEPROM version

Past trip 1

See 8.2.

Past trip 2

Past trip 3

Past trip 4

Cumulative operation time

Primary frequency (compensated frequency) ^*5

Estimated motor operation frequency ^*5

Torque

Torque current ^*5

Excitation current ^*5

Analog (VIA) input frequency ^*5

Motor (Electronic-thermal) load factor ^*5

Inverter load factor ^*5

0.01Hz

0.01%

0.01Hz

Input power

Output power ^*5

0.01KW

Analog input value VIA

10-bit resolution (data range: 0 to 1023)

Analog input value VIB

10-bit resolution (data range: 0 to 1023)

Inverter status2

See 8.3.

FE36

FE42

FE45

FE46

FE49

FE70

FE71

FE73

FE75

FE76

FE77

FE79

FE80

See 8.2.

Command mode(CMOD) status

Frequency mode(FMOD) status

Inverter status3

Rated current

0.1A

Rated voltage

0.1V

CPU2 version

monitor of inverter number Hard SW

Integral Input power

0.01kWh

Integral Output power

Life alarm information

See 8.2.

Cumulative power-on time

*5: If a trip occurs, data immediately before its occurrence is displayed.

E6581222

Appendix 1 Table of data codes

• JIS (ASCII) codes

Higher orde

Lower order

NUL

TC₇(DLE)

DC₁

(SP)

０

１

２

３

４

５

６

７

８

９

：

；

＜

＝

＞

？

＠

Ａ

Ｂ

Ｃ

Ｄ

Ｅ

Ｆ

Ｇ

Ｈ

Ｉ

Ｊ

Ｋ

Ｌ

Ｍ

Ｎ

Ｏ

Ｐ

Ｑ

Ｒ

Ｓ

Ｔ

Ｕ

Ｖ

Ｗ

Ｘ

Ｙ

Ｚ

［

￥

］

＾

＿

、

ａ

ｂ

ｃ

ｄ

ｅ

ｆ

ｇ

ｈ

ｉ

ｊ

ｋ

ｌ

ｍ

ｎ

ｏ

ｐ

ｑ

ｒ

ｓ

ｔ

ｕ

ｖ

ｗ

ｘ

ｙ

ｚ

｛

｜

｝

‾

TC₁(SOH)

TC₂(STX)

TC₃(ETX)

TC₄(EOT)

TC₅(ENQ)

TC₆(ACK)

BEL

DC₂

”

＃

＄

％

＆

’

（

）

＊

＋

，

－

．

／

DC₃

DC₄

TC₈(NAK)

TC₉(SYN)

TC₁₀(ETB)

CAN

FE₀(BS)

FE₁(HT)

FE₂(LF)

FE₃(VT)

FE₄(FF)

FE₅(CR)

SUB

ESC

IS₄(FS)

IS₃(GS)

IS₂(RS)

IS₁(US)

DEL

CR: Carriage return

Ex.: Code 41 = Character A

E6581222

Appendix 2 Response time

The communication response time can be calculated from data communication time and inverter

processing time. When wishing to know the communication response time, calculate using the fol-

lowing as a reference

Data processing time of inverter

Data transmission time

PC → Inverter

Inverter → PC

Response time

■

Data transmission time

Data transmission time =

×number of bytes transmitted×number of bits

baud rate

* Number of bits = start bit + data frame length + parity bit + stop bit

* Minimum number of bits = 1 + 8 + 0 + 1 = 10 bits

* Maximum number of bits = 1 + 8 + 1 + 2 = 12 bits

Data transmission time =

×8×11= 4.6ms

19200

■

Data processing time of inverter

Data processing time: maximum 20ms

E6581222

Appendix 3 Compatibility with the communications func-

tion of the VF-S9

To provide consistency in communications procedures, the communications function of the VF-S11

series of inverters has been designed based on the protocols used for the Toshiba VF-S9 series of

inverters. With regard to compatibility, however, VF-S9 users should check the items described be-

low before using the communications function of their inverters.

■ To VF-S9 inverter users:

Some parameters of the VF-S9 are different from those of the VF-S11 in function or adjustment

range (upper and lower limits), even though they have the same title or the same communication

number. So, when accessing a parameter, consult the VF- S9 inverter’s instruction manual to see if

the parameter is identical to the corresponding parameter of the VF-S11. If the parameter differs,

modify the computer program to suit your inverter. To avoid hazards, never copy parameters from

one model of inverter to another.

■ Comparison of communication-related items

The table below gives a comparison of communication-related items to be kept in mind when re-

placing VF-S9 inverters with VF-S11 inverters or when connecting VF-S9 inverters and VF-S11 in-

verters to the same network. It does not cover any items common to the VF-S9 and VF-S11 series of

inverters.

Model

VF-S9

VF-S11

maximum 20ms

Reference

Appendix 2

Item

Data processing time of About 8 ms

inverter

(This is only standard time, not guarantee

time.)

Notice

♦ Do not use communications programs written for another series of inverters.

Even though parameters have the same title and the same communication number, they may be different

in function. When using a parameter, always check its specifications in the instruction manual for your

inverter. If the specifications of the parameter differ, modify the computer program to suit your inverter.

♦ To avoid hazards, do not copy parameters from one model of inverter to another.

Even though parameters have the same titles and communication numbers, they may be different in

function.

E6581222

Appendix 4 Troubleshooting

If a problem arises, diagnose it in accordance with the following table before making a service call. If

the problem cannot be solved by any remedy described in the table or if no remedy to the problem is

specified in the table, contact your Toshiba dealer.

Problem

Remedies

Reference

Communications will not take - Are both the computer and the inverter turned on?

place.

- Are all cables connected correctly and securely?

- Are the same baud rate, parity and bit length set for every unit on the

network?

Chapter 7

Section 4.1

Section 5.1

Chapter 9

Inverter

instruction

manual

An error code is returned.

- Is the data transmission format correct?

- Does the data written fall within the specified range?

- Some parameters cannot be written during inverter operation.

Changing should be attempted when the inverter is in halt.

The trip  occurs.

- Check the cable connection and the timer setting.

Section 7.3

Chapter 6

The slave of " Inter-drive com- - Is a communication waiting time parameter on the master side set up?

munication " did an err5 trip.

Set bigger value than present value on the master's transmitting inter-

val.

Section 7.4

Frequency instructions from the - Is the frequency setting mode selection parameter set to “computer”? Section 8.1

computer have no effect.

Commands, including the run - Is the command mode selection parameter set to “computer”?

and stop commands, from the

Section 8.1

commuter have no effect.

A change to a parameter does Some communications-related parameters do not take effect until the

Chapter 7

not take effect.

inverter is reset. To make them take effect, turn the inverter off tempo-

rarily, then turn it back on.

The setting of a parameter was When using the TOSHIBA Inverter Protocol, use the W command to Section 4.2

changed, but it returns to its write data into the EEPROM. If you use the P command that writes data

original setting when the inverter into the RAMs only, the data will be cleared when the inverters are

is turned off.

reset.

66E

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