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3-2 MM2 Motor Manager 2

GE Power Management

3.1 FACEPLATE FUNCTIONS 3 HARDWARE

3.1.3 INDICATOR LEDs

• RUNNING: Whenever contactor A and/or B relays are closed and the contactor status inputs

acknowledge the correct state, the RUNNING indicator will be on. Current flow does not affect

the indicator, only contactor status.

• STOPPED: If both contactors A and B are in the OFF state, the STOPPED indicator will be on.

• TRIPPED: If a trip condition causes the A or B contactor relays to de-energize, this indicator will

be on. As long as this indicator is on, the motor cannot be started. It is cleared using the reset

key, lockout reset facility or serial port reset, dependent on the type of trip.

• ALARM: If an alarm condition is present this indicator will be on. Use the A2: ALARM DATA actual

values to view current alarm status.

• FAULT: If an internal fault within the MM2 is detected by self-checking, this indicator will be on.

The MM2 must be replaced or repaired.

• CONTACTOR A: If the Contactor A Relay is energized, this indicator will be on.

• CONTACTOR B: If the Contactor B Relay is energized, this indicator will be on.

• AUX 1: If Auxiliary Relay # 1 is on, this indicator will be on.

• AUX 2: If Auxiliary Relay # 2 is on, this indicator will be on.

• AUTO: If the MM2 is in Auto control mode or the Hard-Wired Auto mode, this indicator will be on.

In Auto mode the Start A / Start B switch inputs and START A / START B keypad keys are non-

operational but serial port start commands are operational. In the Hardwired Auto Mode, the Auto

Start A and Auto Start B switch inputs are functional in conjunction with the Auto Permissive

switch input. Serial, faceplate and remote starts are disabled. STOP commands from any loca-

tion are always operational.

• MANUAL: If the MM2 is in Manual control mode, this indicator will be on. In Manual mode the

Start A / Start B switch inputs, AUTO START A / AUTO START B switch inputs and START A /

START B keypad keys are operational but serial port start commands are ignored. All stop com-

mands are operational.

GE MOTOR MANAGER 2 User Manual

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