9
RELAY CONTROL SYSTEM ELECTRICAL INSTRUCTIONS
FINAL PROGRAMMING:
Fully close the door.
All programming changes on the operator must be made with the door in the
fully closed position! Verify that the door is fully closed and that the close LED is
illuminated.
The Maximum Run Timer (MRT) helps to protect the door and operator from damage
should there be a bind or other problem. It does this by limiting the amount of time
that the operator will run continuously. To set the time, position the rotary switch on
the printed circuit board to the “D” (Run Tm) position as shown in the following photo:
Press the “Open” button and allow the door to reach the fully opened position. The
MRT is now set. Immediately proceed to the next step.
Convert the oper
ator from “Constant Pressure to Close” (C2) configuration to
“Momentary Pressure to Close” (B2) by setting the rotary switch on the printed circuit
board to the “1” position as shown in the following photo: