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CHAPTER 6: ACTUAL VALUES
MM3 MOTOR MANAGER 3 – INSTRUCTION MANUAL
•
DRIVE FAILED TO START: An inverter starter has failed to complete a start sequence.
This occurs on an inverter starter when, during a start sequence, contactor A closes as
expected but contactor B fails to close.
•
DRIVE FAILED TO STOP: An inverter starter has failed to complete its stop sequence.
This occurs on an inverter starter when contactor B fails to open during a stop
sequence.
•
INCOMPLETE START: An autotransformer starter has failed to complete its start
sequence. This occurs on an autotransformer starter start sequence when contactor
A closes as expected but contactor B fails to close.
•
UNDERPOWER ALARM: The power has dropped below the underpower alarm level for
the underpower alarm time delay.
•
MOTOR GREASING INTERVAL EXCEEDED: The motor greasing interval time has been
exceeded.
•
CONTACT INSPECTION INTERVAL EXCEEDED: The number of contactor operations
has exceeded the contactor inspection interval alarm count.
•
MAXIMUM MOTOR STOP TIME EXCEEDED: The time that the motor has remained
stopped has exceeded the maximum motor stopped time alarm level. This can be
cleared by starting the motor.
•
ANALOG HIGH ALARM: The analog input value has exceeded the analog input high
alarm level for the analog input high alarm time delay.
•
ANALOG LOW ALARM: The analog input value has dropped below the analog input
low alarm level for the analog input low alarm time delay.
•
PROCESS INTERLOCK A to PROCESS INTERLOCK J: An open process interlock switch
input (A through J) has been detected.
•
MOTOR A TRIP ALARM: A duty/standby starter type motor has tripped. The cause of
the trip is displayed on the bottom line.
•
THERMAL CAPACITY ALARM: The thermal capacity used has exceeded the alarm level.
•
UNDERVOLTAGE ALARM: The primary voltage measurement has dropped below the
alarm level.
•
OVERVOLTAGE ALARM: The primary voltage measurement has exceeded the alarm
level.
•
START BLOCK ALARM: A start block is in effect.
A2 STATUS
6–9
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