GE Multilin MM3 Motor Manager 3 Instruction Manual page 132

A2 STATUS
6–8
Any alarm conditions that are currently active will be displayed. This could be one or more
of the following:
• NO ACTIVE ALARMS: This message is displayed only when there are no alarms
currently active. If at least one alarm has occurred, the most recent alarm message
will override the currently selected default message and this message will not be
displayed.
• LOAD INCREASE ALARM: Load increase alarm level has been exceeded.
• INTERNAL FAULT ALARM: Self-test checking detected an internal hardware fault.
• PHASE UNBALANCE ALARM: A phase current unbalance of greater than 15% has
existed for more than 5 seconds.
• THERMISTOR ALARM: The thermistor hot resistance has been exceeded.
• UNDERPOWER ALARM: The power has dropped below the underpower alarm level for
the underpower alarm time delay.
• UNDERCURRENT ALARM: The average phase current has dropped below the
undercurrent alarm level for the undercurrent alarm time delay.
• ACCELERATION TIME ALARM: The measured motor acceleration time has exceeded
the acceleration time alarm level.
• GROUND FAULT ALARM: The ground current has exceeded ground fault alarm level
for the ground fault alarm time delay.
• OPEN CONTROL CIRCUIT: While performing a start, the MM3 Motor Manager 3 did not
see a change in contactor status (open to closed) within 1 second of energizing the
output relay.
• WELDED CONTACTOR: While performing a stop, the MM3 Motor Manager 3 did not
see a change in contactor status (closed to open) within 1 second of de-energizing the
output relay.
• INVERTER TRIPPED: An inverter trip has been detected by the MM3 Motor Manager 3.
This occurs on an inverter starter when contactor B opens and contactor A stays
closed with no stop command processed by the MM3 Motor Manager 3.
CHAPTER 6: ACTUAL VALUES
PROCESS INTERLOCK C
ALARM
↓
PROCESS INTERLOCK J
ALARM
MOTOR A TRIP ALARM =
OVERLOAD
THERMAL CAPACITY
ALARM
UNDERVOLTAGE
ALARM
OVERVOLTAGE
ALARM
START BLOCK ALARM
MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL