LiftMaster AA250EVK Manuel D'installation page 9

INSTALLATION
5.6 Control Board Installation and Motor Wiring
The control board is already pre-installed in the Primary unit and pre-wired to the terminals of Motor 1.
To gain access to the control board in the Primary unit release the 2 screws on the sides of the cover and 2 screws on the back of the Primary unit (see picture 5).
The terminals for wiring accessories are directly accessible. To get access to the programming buttons remove the transparent plastic cover and place it back once pro-
gramming is finished (see picture 6). Remove the cover of the Secondary unit same way as with Primary unit to gain access to the Motor wiring terminal (see picture 7).
Picture 5
Removing Cover
Per default settings, the Primary unit is considered installed on the left (when looking from inside out), and the Secondary unit on the right.
In case the Primary unit is installed on the right, and the Secondary unit on the left, change the settings of functions «d1» and «d2».
Motor 1 Connection
NOTE: The operator wired to the MOTOR 1 terminal will always open first and close last.
Consider this for Basic and Advanced Settings (see Programming section).
Primary unit is already pre-wired to MOTOR 1 terminals. No extra steps required for Motor 1 wiring.
Motor 2 Connection
NOTE: The operator wired to the MOTOR 2 terminal will always open last and close first.
Consider this for Basic and Advanced Settings (see Programming section).
1. Connect the extension cable (not provided) to the wiring terminals of the Secondary
unit (see picture 7).
Note the cable colors of the Secondary motor to match them on the control board wiring
terminal for MOTOR 2.
2. Feed the Secondary motor extension cable through one of the cable glands at the bottom
of the Primary unit (see picture 8). Ensure to use the side of the motor where the arm cannot cut the cables
during opening or closing movement.
3. Connect Secondary motor cables to the MOTOR 2 terminals as follows: red cable to RED terminal, green cable to GRN terminal , white cable to WHT terminal on
control board.
5.7 Power Wiring
Mains power wiring must be done by a certified electrician specialist.
Picture 9
Picture 6
Primary unit
Picture 8
Congratulations! Herewith the mechanical installation of your gate operator is
finished. Please proceed with Programming and Basic Settings to be able to
start operation.
8
Picture 7
Secondary unit
Wiring terminal
Extension cable
(not supplied)