Rev C Doc 6001288 (01-20285) 34 of 39
SLAVE I/O INPUT (TB5)
SLAVE I/O Input/output terminals are used to control a second gate operator in a
Master/Slave system.
ADJUSTMENTS
REVERSE Adjustable pot controls gate sensitivity to blockages by the instantaneous
RIGHT (R61) rise in motor current. When the limit is exceeded, the gate reverses a
programmed distance and stops. If Max Retry Count is enabled, the gate
waits a programmed pause time, then tries to resume. The gate will retry
twice before faulting out.
REVERSE Adjustable pot controls gate sensitivity to blockages by the instantaneous
LEFT (R160) rise in motor current. When the limit is exceeded, the gate reverses a
programmed distance and stops. If Max Retry Count is enabled, the gate
waits a programmed pause time, then tries to resume. The gate will retry
twice before faulting out.
NOTE: LiftMaster gate operators have two reverse sense adjustments (left and right)
where other gate operators have only one. This allows greater flexibility of
installation. For instance, you can install a gate on an incline and not worry
about sacrificing downhill gate sensitivity.
INRUSH Adjustable pot controls the delay in sensitivity to a Reverse Sense input.
(R203) This delay in sensitivity prevents the initial motor inrush current from causing
a fault condition. The weight of the gate determines this setting.
CONNECTORS
LIMIT SWITCH (J4) Connector for the left/right limit switch cable.
BATTERY I/O (J15) Connector for use by the Power Fail Operation unit.
PWR INPUT (J1) Connector for AC input power.
MOTOR POWER (J3) Connector for the motor cable.
LOOP DETECTOR Connector for the optional LiftMaster Outside Interrupt Loop detector
(J12) add-on board.
LOOP DETECTOR Connector for the optional LiftMaster Inside Interrupt Loop detector
(J13) add-on board.
LOOP DETECTOR Connector for optional LiftMaster Shadow Loop detector add-on
(J14) board.
LOOP DETECTOR Connector for optional LiftMaster Exit Loop detector add-on board.
(J15)
