LCN
®
7940-8770 Presence Sensor
Installation Instructions
LCN®
Hardware Products
121 West Railroad Avenue
Princeton, IL 61356-0100
1-800-526-2400
FAX: 800-248-1460
© 2006 Ingersoll-Rand Company Limited
SAFETY
PRECAUTIONS
•
•
•
•
Shut off all power going to the header before attempting any wiring procedures.
Maintain a clean & safe environment when working in public areas.
Constantly be aware of pedestrian traffic around the door area.
Always stop pedestrian traffic through the doorway when performing testing that may result in unexpected
reactions by the door.
•
Always check placement of all wiring and components before powering up to insure that moving door
parts will not catch any wires and cause damage to equipment.
MECHANICAL
INSTALLATION -
PREPARATION
To prepare the Presence Sensor for mounting to the header, perform the following:
a) Remove both end caps from the Presence Sensor (picture 1). Each is attached by one Phillips head screw.
1
2
b) Remove both lenses from Presence Sensor by simply sliding them out at each end, as shown above in
picture 2.
c) Remove the center eye shield as shown in picture 3 (take care not to damage the light tube on the inner
side of the shield). Simply pull out from the top end and rotate out as shown below.
3
4
d) Slide the PCB out of the extrusion and set it aside as shown above in picture 4.
Remember these guidelines when installing a Presence Sensor:
MECHANICAL
INSTALLATION –
PLACEMENT OF
THE SENSOR
‰
‰
‰
The Presence Sensor should be mounted at a height range of 6’ 6” to 8’. Maximum mounting height is 9’.
The Presence Sensor should be mounted above the door on the swing side.
The Presence Sensor shall be mounted flush with the bottom of the automatic door header. This is absolutely
necessary to allow the detection pattern to reach back through the threshold area when the Presence Sensor
is in the open door position.
‰
‰
For single door applications, the Presence Sensor should be mounted at the center of the door opening.
However, if this is not possible, the unit may be installed off-center. In such cases, pattern location will have to
be altered for proper placement of the field of detection. Try to avoid mounting locations that may pose
potential problems such as directly over a door arm.
For double-egress applications, one Presence Sensor
should be mounted over each swing-path. There should
be at least 40” of separation between the 2 Presence
Sensors when measured between the centerline of each
sensor.
Wall Switch
An optional BodyMount
3” Standoff may be used
during sensor installation
20” min
20” min
‰
‰
If the Presence Sensor is the only sensor being used for
safety at the swing side of the door, to be in compliance
with ANSI 156.10, a lockout safety beam or door
mounted safety side (DMSS) is needed in addition to the
Presence Sensor.
Presence Sensor
Presence Sensor
For all applications, refer to the pattern charts for
width and depth in the applicable section of this
Guide. Patterns shall be adjusted to achieve
maximum detection zones, and shall be in
compliance with all applicable safety standards (i.e.
ANSI A156.10).
Wall Switch
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7940-8770 LCN
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MECHANICAL
INSTALLATION
NOTE: LCN recommends the use of a BodyMount P/N 761222-79 for most Presence Sensor applications. The
BodyMount is a 3” standoff that allows the Presence Sensor to be slightly distanced from the face of the
closed door. This helps to prevent ghosting caused by slight door movement while closed, and also
prevents ghosting when Door Mounted Safety Sensors are used (as the Door Mounted Safety Sensor
extrusions at the top of the door are extremely close to the sensor while the door is closed).
1. The extrusion has pre-drilled mounting holes at each end as shown below in pictures 5 & 6.
5
6
Pre Drilled
Mounting Holes
Approx. 9 ¾” Apart
2. Hold the Presence Sensor up to the pre-determined location, and attach using the 2 self-drilling screws
that are included with the package, as shown in picture 7 below. It may be necessary to pre-drill a pilot
hole (picture 8) in the header for ease of screw installation. Ensure that Presence Sensor is mounted
securely at each end.
7
8
3. If Presence Sensor is mounted directly to door header, and cabling is to pass directly into header, drill a ¼”
hole next to the Presence Sensor’s left side end cap to allow wire passage into header as shown below.
The wire passage hole should be in a location that aligns with the cut out in the end cap as shown below.
9
ELECTRICAL
INSTALLATION
AND CABLING
Once the Presence Sensor is securely attached to header, cabling & wiring may be completed.
1. Install the 10-pin connector as shown below in picture 10. If wiring the Presence Sensor to a LCN module, refer to
the schematic for the respective module.
Position
1
Connection 7-Pin
12 to 24 V AC / DC Red
+/- 10%
24 to 24 V AC / DC Black
+/- 10%
Wire Color (10-pin cable)
10
1 PWR
2 PWR
3 COM
4 NO
2
5 NC
3
4
5
6
7
Common
White
Green
6 IN -
7 IN +
Normally Open
Normally Closed
Data -
10 PIN
Brown
Blue
10 PIN
Data +
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Once all installation, wiring and cabling procedures have been completed, mechanical adjustments can be made.
Please note that further adjustments may be required after powering and walk testing the detection field.
MECHANICAL
ADJUSTMENTS
Aside from placement on the header, the only mechanical adjustment that may be made to the sensor is the angle
adjustment. The Presence Sensor is factory pre-set to the +5º position, but may be reduced to a 0º position or
increased to a 10º position. The greater the angle, the farther from the door the pattern will be. The 0º angle should
only be used when the Presence Sensor is mounted to a BodyMount block or to a soffett above the door that
extends out from the face of the safety side of the door – in this case, the 0º setting would improve the location of
the detection field across the threshold area of the doorway. It is recommended that for most applications, the unit
be powered and walk tested at the pre-set 5º angle. After walk testing, if the detection field needs to be changed,
then proceed with changes to the angle setting as shown below.
1. To change the angle setting the end caps, lenses, and center eye shield must be removed (as shown on page 2).
The terminal block must also be removed if it has been wired. Once removed release the white clips, as shown
below, and rotate outward to remove the PCB as shown in pictures 12 & 13.
12
13
2. Once the PCB is completely removed from the housing, the angle position may be changed. There are two clips
per Presence Sensor and the angle must match for each clip on the same PCB. The positions are shown below.
10°
5°
0°
Factory Default
3. Slide the left and right lens back into place and proceed with power-up procedures. Leave the end caps off until all
final adjustments have been made.
14
POWER-UP
PROCEDURES
1. Upon completion of mechanical and electrical installation, apply 12 to 24 V AC / DC +/- 10% to the Presence
Sensor, with the door in the closed position. The Presence Sensor will flash a green LED at a rate of 2 Hz, then it
will expire upon a successful set-up in the door-closed position.
NOTE: If applying the Presence Sensor to a door control that requires a learn cycle upon powering, it is
recommended to allow the doors to complete a learn cycle before applying power to the Presence Sensor.
2. Activate the door to the full open position. The Presence Sensor will once again flash the green LED and will
execute a door-open set-up. Upon completion of the set-up for the door-open position, the doors will begin closing.
Normal operation should resume thereafter. Proceed with fine-tuning to insure compliance with all applicable
safety standards (i.e. ANSI A156.10). If set-up is unsuccessful, refer to the Troubleshooting Guide at the end of
this Users Guide, and also to the guide located at the end of the respective lockout User’s Guide.
NOTE: Always be sure to refer to the applicable lockout User’s Guide for more detailed information.
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DOUBLE EGREES:
REDUCING
CROSS TALK
Perform the following set up using LCN’s remote control to reduce cross talk between duel egress applications. Refer to
the figure on page 2 to ensure the two Presence Sensors are installed with at least 40” of separation when measured
between the centerline of each sensor.
1. Place doors in the hold open position. Unlock sensor and set open door Pattern Depth to 5 (Medium Pattern).
This sequence will turn off threshold IR while door is in open position. This function should be changed on both
sensors:
+ +
then
+
2. The infrared frequency function may need to be changed. Change frequency on one of the sensors:
+ +
then
+
3. Change to a different mode in applications where high gloss floors or multiple doors are installed in vestibules.
Change sensor one to:
+ +
Change sensor two to:
then
then
+
+
+ +
LCN’S UNIVERSAL
REMOTE
CONTROL
The Presence Sensor is fully compatible with LCN’s Remote Control as shown below. Use of the remote control should
be conducted within 10’ – 15’ of the sensor, and the remote should be pointed directly at the sensor when used. Refer to
the “Programming Guide” in the following section for each parameter and its values.
Additional program notes:
1. The Presence Sensor is capable of having two patterns (door closed and door open) that are
independently adjustable. Thus, when programming, it is necessary to adjust the pattern for door closed,
and then to adjust the pattern again when the door is open. The following functions may be
independently adjusted for each door position:
ƒ
ƒ
ƒ
Sensitivity
Pattern Width
Pattern Depth
2. The following functions apply to both door closed and door open positions:
ƒ
ƒ
ƒ
ƒ
ƒ
ƒ
ƒ
Automatic Learn Time
Immunity
Frequency
Output Configuration
Door Control Mode
Hold Time
Interface Type
3. The immunity modes include Rain Mode and Snow Mode. During these modes, learn time of the sensor
will not be affected. These modes affect the interpretation of the objects in the field of detection relative
to the background.
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PROGRAMMING
GUIDE –
GENERAL
FUNCTIONS
REMOTE P/N
7940-461
Number Keys
Number keys (0 through 9) are
used for assigning a value for a
given function
Infrared Frequency
Mode
Normal
Normal
Quiet
Frequency
1
2
3
4
Low
High
Low
High
Interface
1: LO-Linx
Quiet
2: LO21 - Old Style (LO21, B, K, P, U)
See Note: Quiet Mode
Door Control
Unlock
Inquire
Lock
1: normal
(LED in normal mode)
2: door permanently open
(red LED ON)
3: door permanently closed
(red LED OFF)
To UNLOCK the sensor:
Press the UNLOCK key once. Red
LED flashes slowly. If flashing fast,
see Note below.
Output
To LOCK the sensor:
Configuration
Press the LOCK key twice, OR
press once then followed by a 4-
digit lock code. If less than 4
digits, press lock again after the
last digit. LED goes out when
complete.
1 – Normally Open Relay
2 – Normally Closed Relay
Setup
To INQUIRE the sensor:
Unlock the sensor, press the
desired function key, followed by
the INQUIRY key – the number of
green flashes corresponds to the
value.
launch a quick setup
restore factory defaults
Hold Tme
Note: If sensor is locked, but code
is unknown, power the sensor off
and then back on. Press the
UNLOCK key within 60 seconds.
Re-lock with 0000. This is the
default code. Sensor will unlock
with one press of the unlock key,
when set to 0000.
launch a closed door setup
0 (0.5s) → 9 (9s)
launch an open door setup
See Note: Automatic Setup
NOTE: AUTOMATIC SETUP: When performing an automatic setup (setup key pressed twice in a row), the sensor will begin to
flash green during the door closed position, and will continue to do so until the door is activated to the open position.
The LED will then go out and the door will close. The LED will flash green again at the closed position until a setup is
complete. Upon the next activation, the sensor will launch another setup for the open door position, and will begin
normal operation thereafter.
NOTE: QUIET MODE: The QUIET mode uses a different pulsing pattern to avoid interference with other infrared systems. The
NORMAL mode transmits more energy and detects slightly in a more crisp fashion. The NORMAL mode is
recommended for installations with only one door.
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PROGRAMMING
GUIDE – PATTERN
ADJUSTMENTS
Sensitivity
Door Open-Closed
Automatic Learn
Time
0 (min) → 9 (max) (default 7 for
door open, default 6 for door
closed)
0: 30 seconds
1: 1 minute
2: 2 minutes
3: 3 minutes
4: 5 minutes
Pattern Width
Door Open or
Closed
5: 7 minutes
6: 10 minutes
7: 15 minutes
8: 10 seconds
9: Infinity – no learn
1: Wide (closed door)
2 : Middle (open door)
3 : Asymmetric Left Narrow
4 : Asymmetric Right Narrow
5 : Narrow Left
6 : Narrow Right
Immunity
7 : Asymmetric Left Wide
8 : Asymmetric Right Wide
9 : Center Narrow
1: Normal
2 : Rain Mode
3 : Snow Mode
See Note: Pattern Width or Depth
Pattern Depth
1: Deep – Threshold ON
2 : Medium – Threshold ON (open)
3 : Limited – Threshold ON
4 : Deep – Threshold OFF
5 : Medium – Threshold OFF (closed)
6 : Limited – Threshold OFF
See Note: Threshold
See Note: Pattern Width or Depth
NOTE: THRESHOLD: The Threshold is always OFF when the door is closed.
NOTE: PATTERN WIDTH OR DEPTH: When pattern width or depth is changed, a setup of the new
pattern size will automatically be triggered once a value key has been pressed.
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MANUAL
(NON-REMOTE)
SET-UP
Without the LCN Remote Control, the Presence Sensor may be set up using the manual push buttons (see
diagram below) located under the right end cap. Only the sensitivity, relay mode, auto-learn time, pattern width,
and pattern depth may be adjusted with the manual push buttons. To adjust the Presence Sensor, complete the
following:
PB1
PB2
1. To start the set-up process, press PB1 (for less than 2 seconds)
‰
‰
The set-up function will be launched according to the current door position. The green LED will flash at
2+/- Hz for 10 seconds. This LED will stop flashing once a successful set-up is achieved.
If there is an interruption to the field of detection during this procedure, the green LED will flash at a slower
rate. Press PB1 to re-launch the set-up.
2. To change the detector’s parameters, press PB1 (for more than 2 seconds), then release.
3. Press either PB1 or PB2. The LED will immediately flash red, followed by a sequence of green flashes.
4. The red flashes indicate the parameter and the green flashes indicate the setting of the particular parameter.
NOTE: Pressing PB1 will toggle between the parameters and pressing PB2 will toggle between the range of
adjustments for that particular setting. Once you achieve the highest adjustment, the value will roll over to the
lowest setting, upon the next press of PB2. A zero value will result in no flash of the LED.
To exit manual set-up, simply wait 20 seconds or press PB1 for more than 2 seconds. Replace the right end cap
back on the Presence Sensor.
‰
Use the chart below as a reference for the manual set-up process.
RED LED
STATUS
PARAMETER
DESCRIPTION
GREEN LED STATUS
1 Red Flash
1
Sensitivity (Door open)
0 – 9 Green Flashes (default = 7)
2 Red Flashes
3 Red Flashes
2
3
Sensitivity (Door closed)
Output Configuration
0 – 9 Green Flashes (default = 6)
1 – 2 Green Flashes (default = 1)
4 Red Flashes
4
Auto Learn Time
0 – 9 Green Flashes (default = 0)
5 Red Flashes
6 Red Flashes
7 Red Flashes
8 Red Flashes
5
6
7
8
Pattern Width (Door Open)
Pattern Width (Door Closed)
Pattern Depth (Door Open)
Pattern Depth (Door Closed)
0 – 9 Green Flashes (default = 2)
0 – 9 Green Flashes (default = 1)
1 – 6 Green Flashes (default = 1)
1 – 6 Green Flashes (default = 1)
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PRESENCE
SENSOR WIDTH
PATTERNS
1st Row of Infrared
Threshold
1
7
2
8
3
9
4
5
6
nd Row of Infrared
3rd Row of Infrared
th Row of Infrared
10
16
22
11
17
23
12
18
24
2
13
19
14
20
15
21
4
(1) Wide Pattern
(2) Middle Pattern
(3) Asymmetric Left Narrow
1
7
2
8
3
9
4
5
6
1
7
2
8
3
9
4
5
6
1
7
2
8
3
9
4
5
6
10 11 12
10 11 12
10 11 12
13 14 15 16 17 18
19 20 21 22 23 24
(4) Asymmetric Right Narrow
13 14 15 16 17 18
19 20 21 22 23 24
(5) Left Narrow
13 14 15 16 17 18
19 20 21 22 23 24
(6) Right Narrow
1
7
2
8
3
9
4
5
6
1
7
2
8
3
9
4
5
6
1
7
2
8
3
9
4
5
6
10 11 12
10 11 12
10 11 12
13 14 15 16 17 18
19 20 21 22 23 24
(8) Asymmetric Right Wide
13 14 15 16 17 18
19 20 21 22 23 24
(9) Center Narrow
13 14 15 16 17 18
19 20 21 22 23 24
(7) Asymmetric Left Wide
1
7
2
8
3
9
4
5
6
1
7
2
8
3
9
4
5
6
1
7
2
8
3
9
4
5
6
10 11 12
10 11 12
10 11 12
13 14 15 16 17 18
19 20 21 22 23 24
13 14 15 16 17 18
19 20 21 22 23 24
13 14 15 16 17 18
19 20 21 22 23 24
PRESENCE
SENSOR DEPTH
Row 1 (spots 1 through 6), remain on, even during the closed door position
PATTERNS
(1) Deep
(2) Middle
(3) Limited
1
7
2
8
3
9
4
5
6
1
2
8
3
9
4
5
6
1
7
2
8
3
9
4
5
6
10 11 12
7
10 11 12
10 11 12
13 14 15 16 17 18
19 20 21 22 23 24
13 14 15 16 17 18
19 20 21 22 23 24
13 14 15 16 17 18
19 20 21 22 23 24
NOTE: When the Presence Sensor is mounted at 7’, each block on the pattern charts shown above
equates to a size of approximately 14” x 14”. Pattern sizes shown are only as an
approximation. Always walk-test the pattern once complete, to insure compliance with all
applicable safety and performance standards.
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PRESENCE
SENSOR DEPTH
PATTERNS -
Cont.
Row 1 (spots 1 through 6), are on during open door position and off during closed door position.
(4) Deep Without Row 1
(5) Middle Without Row 1
(6) Limited Without Row 1
1
7
2
8
3
9
4
5
6
1
7
2
8
3
9
4
5
6
1
7
2
8
3
9
4
5
6
10 11 12
10 11 12
10 11 12
13 14 15 16 17 18
19 20 21 22 23 24
13 14 15 16 17 18
19 20 21 22 23 24
13 14 15 16 17 18
19 20 21 22 23 24
TROUBLE-
SHOOTING
PROBLEM
PROBABLE CAUSE
1. Improper input voltage
2. Presence Sensor is in detection
3. Potential interferences from high
intensity lighting
CORRECTIVE ACTION
Presence Sensor will not
set-up upon initial powering
1. Check terminals 1 & 2 for proper voltage
24 V AC/DC + 10%.
2. Make certain that the field of detection is all
clear during the set-up and that all lenses
are installed on the Presence Sensor. If
detection is encountered upon initial set-up,
the Presence Sensor will continuously flash
Green at + 2 Hz. The Presence Sensor will
also not set-up if permanent stationary
objects are extremely close to the sensor.
Ensure that, not only is the detection field all
clear, but that the sensor is mounted
properly (using the Presence Sensor
mounting block if necessary).
3. Ensure that no high intensity lighting is in
the immediate area of the sensor.
Door will not open once set-
up has been completed.
1. Presence Sensor is in detection.
2. Improper wiring
3. Lockout safety beams are in
detection
1. Ensure that there is no detection occurring
at the Presence Sensor. If the Red LED is
on steady, there is detection. Make sure
there have been no changes in the field of
detection since set-up. If permanent
changes have occurred, launch a new set-
up and re-test door.
4. Improper relay output configuration
2. Remove the output wires (common,
normally open, normally closed) from the
Presence Sensor. CAUTION – there may
possibly be no safety on the door when
this test is performed. Activate the door
control, if the door opens, the fault exists
with Presence Sensor or related wiring. If
door does not open, the faults may exist
with the door control or it’s related wiring.
3. Ensure proper relay output setting. Refer to
page 6. Typically, relay setting should be
“Normally Open”. This means the relay
would close upon detection.
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TROUBLE-
SHOOTING –
PROBLEM
PROBABLE CAUSE
CORRECTIVE ACTION
Cont.
Presence Sensor
repeatedly re-learns the
environment with each
1. Improper data from the lockout
device
2. Data polarity at the Presence
Sensor is incorrect
1. Allow the door to open in the automatic
mode. Unlock the Presence Sensor and
launch a setup by pressing the Setup key,
followed by the number 2. If the sensor
does not begin flashing green, and instead
goes back to a red indication, improper data
exists. Refer to respective lockout User’s
Guide for troubleshooting.
2. Check for proper polarity at terminal 6 and
7. The negative wire from the lockout
(white) should be connected to terminal 6,
and the red/white striped wire from the
lockout should connect at terminal 7.
‰ HELPFUL HINT: If faulty data is suspected,
simply power the door to the open position
(by activation OR with the use of a hold
open switch). While the door is open,
unlock the Presence Sensor, and press the
setup key, followed by the number 2. If the
sensor goes back to a red LED (as opposed
to flashing the green LED to indicate a
setup), there is a strong probability that the
data is incorrect. Refer then to the
respective lockout User’s Guide for
troubleshooting help.
Presence Sensor not
reacting to the remote
control
1. Batteries in the remote control are
dead.
2. Distance between sensor and
remote is too far.
1. Replace batteries in the remote control
2. Move in closer to the sensor when
programming.
3. If remote control fails, manual programming
procedures may have to be used. See page
8.
‰ HELPFUL HINT: Use LCN’s Spotfinder to
test the output of the remote control. Simply
point the remote at the IR Spot on the
Spotfinder, press the Unlock key on the
remote, and red LED should illuminate.
ACCESSORIES
BodyMount
P/N 761222-79
Presence Sensor Quick Disconnect Harness
P/N 20.5051.00
Lockout Safety
Beams / SBK-30
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