Technical information

151
Troubleshooting
Position Error Fault
Low bridge AC input voltage and/or insufficient KVA ratings for
external transformer
Accel ramp times too short
Load creating too much friction
Gear reducer oil level too low for high speeds
Wrong type of gear reducer oil (too thick)
2, 3, 6, 9, 10,
12
Uninitialized Memory
First power-up with new firmware
First power-up with new PCM module
Moved PCM to different amplifier
High AC Line Voltage
AC line voltage that exceeds 264 VDC
Surges on the AC line that exceed 264 VDC
Incorrect transformer wiring and/or voltage
10
High DC Bus 6200-8400
Shunt Fuse is open due to excess current caused by motor being
overdriven by load
The regeneration load exceeds the maximum shunt capability
Shunt resistor open
External shunt control jumpers, on J5, loose, or not connected
6, 9
Low AC Line Voltage 6200-8400
AC voltage to FX drive is too low (196 VDC or less)
VA rating of the voltage source is too low
The AC power wiring is inadequate
10
Shunt Temperature Fault
High inertia mismatch
Excessive deceleration
Improper mounting of drive to enclosure
9
Fault
Symbol
Symptom/
Trouble
Possible Cause
Troubleshooting
Procedure