8
Service
Fault table standard
Operating Instructions – MOVIMOT
®
flexible
209
8.6.3
Fault 4 Brake chopper
Subfault: 4.1
Description: Brake chopper overcurrent
Response: Output stage inhibit
Cause
Measure
Excessive regenerative power.
Extend the deceleration ramps.
Short circuit detected in braking resistor circuit.
Check supply cable to braking resistor.
Braking resistance too high.
Check the technical data of the braking resistor.
Subfault: 4.2
Description: Brake chopper defective
Response: Output stage inhibit
Cause
Measure
Output stage of brake chopper defective.
Replace the defective brake chopper.
8.6.4
Fault 6 Line fault
Subfault: 6.1
Description: Line phase failure
Response: Line phase failure
Cause
Measure
Missing line phase detected.
Check the power supply cable.
DC link voltage periodically too low.
Check the configuration of the supply system.
Inadequate line voltage quality.
Check supply (fuses, contactor).
8.6.5
Fault 7 DC link
Subfault: 7.1
Description: DC link overvoltage
Response: Output stage inhibit
Cause
Measure
Maximum permitted DC link voltage limit ex-
ceeded and output stage inhibited by hardware.
– Extend deceleration ramps.
– Check supply cable to the braking resistor.
– Check the technical data of the braking resistor.
29128668/EN – 12/2019
Содержание MOVIMOT flexible MMF3 C/DBC Series
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