LiftMaster SL3000UL3 Owners Manual - Page 32

ADJUSTING REVERSING SENSOR(S) Adjust the "Reverse Sensor" on the control board. Alarm Sensor does not need to be adjusted except where noted below. The level of reverse sensitivity depends on the weight of the gate and the condition of installation. Sensor is set too sensitive = if the gate stops in midcycle or reverses by itself. Sensor is not set sensitive enough = if the gate hits an object and does not stop or reverse. 3 1 3 Maximum Sensitivity CENTER SAFETY EXIT SENSOR ALARM Minimum Sensitivity W4 G B A MS LINK ALARM SENSOR DC-BACKUP SYSTEM ON SENSORS 1 3 1 3 REVERSE SENSOR TIMER 60 3 OFF OPEN LEFT 1 3 ON OPEN RIGHT COMMAND PROCESSED FIRE DEPT. STRIKE OPEN RADIO RECEIVER GATE LOCKED EXIT LOOP SAFETY LOOP CENTER LOOP RESET MOTOR CLOSE STOP OPEN POWER OVERLOAD MADE IN USA CENTER SAFETY EXIT DC2000™ Reverse Sensor The DC2000™ has a separate reverse sensor that will need to be adjusted. The 120Vac CLASS I, II, III, IV operator power needs to be turned off and the DC2000™ should have the "Charge OK" LED ON to make the adjustment. 30 DC2000 Harness Maximum Sensitivity Minimum Sensitivity