4 WIRE EDGE
INTERFACE KIT
WARNING
WARNING
MODEL 71-4WIREEDGE
CAUTION
01-18186C
To avoid SERIOUS personal INJURY or DEATH from
electrocution, disconnect electric power to operator
BEFORE installing.
ALL electrical connections MUST be made by a qualified
individual.
This device is for use ONLY with LiftMaster Commercial
Door Operators. Use on other than recommended
equipment voids warranty and may cause property
damage or SERIOUS personal INJURY.
FIGURE 1
CPS3-01
Option Logic Board
Insert Logic Board into
any available slot
Logic 3 Logic Board Shown
FIGURE 2
4 Wire Edge
Interface Board
Terminal Block
Terminal Block in
LiteTouch Sensing
Edge Control Unit
3
NCC
4
J
I
H
G
5
NCC
6
F
E
D
C
©2006 The Chamberlain Group, Inc
All Rights Reserved.
24V
270K Ohm
Resistor
Operator Main Logic
Board L3 Terminal Block
14 13 12 11 10 9 8 7 6 5 4 3 2 1
Stop
B
A
1
2
Open
WIRING INSTRUCTIONS FOR THE 4 WIRE EDGE INTERFACE
BOARD TO A 4 WIRE SAFETY EDGE
1. Disconnect power to the operator.
2. Remove the jumper wire from terminals G and H on the 4
Wire Edge Interface Board.
3. Remove the jumper wire from terminals I and J on the 4
Wire Edge Interface Board.
4. Run wire pairs from the sensing edge to terminals G, H
and I, J respectively.
5. Restore power to the operator. Verify the functionality of
the edge.
NOTE: Be sure to leave the 270k Ohm resistor between
terminals A and B attached.
WARNING
Close
WIRING INSTRUCTIONS FOR THE 4 WIRE EDGE INTERFACE
BOARD TO A LITETOUCH SENSING EDGE SYSTEM
1. Door must be in full open or closed position.
2. Disconnect power to the operator.
3. Remove the jumper wire from terminals G, H, I and J on
the 4 wire Edge Interface Board.
4. Insert 4 Wire Edge Interface Board into one of the two
slots on the operator’s main logic board (Figure 1).
5. Run the 6 wire cable provided with the LiteTouch edge
control unit and make the following connections:
a) Connect the BROWN lead between 3 on the edge
control and J on the 4 wire interface board.
b) Connect the WHITE lead between 4 on the edge
control and I on the 4 wire interface board.
c) Connect the GREEN lead between 5 on the edge
control and H on the 4 wire interface board.
d) Connect the BLUE lead between 6 on the edge control
and G on the 4 wire interface board.
6. To power the sensing edge control unit run the remaining
leads of the cable as follows:
a) Connect the BLACK lead between 1 on the edge
control and terminal 13 on the motor operator
terminal block.
b) Connect the RED lead between 2 on the edge control
and terminal 14 on the motor operator terminal block.
NOTE: Use terminals 12 and 13 for Logic 2 operators.
7. Restore power to the operator. Verify the functionality of
the edge.
NOTE: Be sure to leave the 270k Ohm resistor between
terminals A and B on the 4 wire edge interface card. This
configuration is a continuous self monitoring system.
Printed in Mexico