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Diagnostic Indicators
Mark (RED)
This is an output that comes ON at the resolver zero position and can be used in
conjunction with alignment procedures. The zero position is about .5 degrees.
Current (BI-COLOR)
This is a bi-color LED that can be either red or green as a function of load. Red indicates
positive torque and green indicates negative torque. The intensity increases with load.
There are eight faults that will disable the amplifier:
LED INDICATION
CONTINUOUS If a load condition exists that causes the amplifier to
produce more than its continuous rating, this fault
occurs.
STATOR SHORTS If stator shorts or most major wiring errors of the stator
occur, this fault occurs.
AMPLIFIER THERMAL
An 85° C thermostat is mounted to the amplifiers IGBT
heat sink. If an excess temperature is sensed, this fault
occurs.
FEEDBACK WIRING For most resolver wiring errors, defective resolvers or
tracking rate errors caused by the resolver, this fault
occurs.
MOTOR THERMAL or
OVERSPEED
If an excess thermal or adjustable condition exists in the
motor, this fault occurs.
HI-BUS If excess DC voltage or a failure of the shunt circuit
occurs, this fault occurs.
RESET During the first second of power up or if the reset input
is active, this LED will be ON.
LIMIT If either of the limit inputs are ON, This LED will be ON.
Power (GREEN)
If logic +5 Vdc is ON, then this LED is ON.
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