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Chapter 8 Troubleshooting and Maintenance
Shenzhen Hpmont Technology Co., Ltd.
- 86 -
MONT72 Series User Manual V1.0
E0004: Acc. overvoltage
Counter-measures
Fault subcode:
401: Software accelerated
overvoltage
Cause of issue:
1: Input voltage is too high
2: Dec. time is too short
3: Unregulated wiring leads to
hardware overvoltage
1: Check the input supply voltage
2: Set the appropriate Acc. and Dec. time
3: Check system wiring, standard wiring
4. Check if the braking resistor selection is
reasonable
E0005: Dec. overvoltage
Fault subcode:
501: Software Dec. overvoltage
Cause of issue:
Same as E0004 failure
E0006: Constant speed overvoltage
Fault subcode:
601: Software constant speed
overvoltage
Cause of issue:
Same as E0004 failure
E0008: Power module fault
Counter-measures
Fault subcode:
800: FO fault protection (edge
trigger)
Cause of issue:
1: Phase-to-phase output short
circuit or short to ground
2: Output current is too large
3: Power module is damaged
1: Check wiring, standard wiring
2: Check wiring and machinery
3: Contact the factory for repair
E0009: Heatsink overheat
Counter-measures
Fault subcode:
901: Software over temperature
902: Hardware over temperature
Cause of issue:
1: Ambient temperature exceeds
specification
2: The drive controller is poorly
ventilated outside
3: Fan failure
4: Temperature detection circuit
failure
1: Derating, power amplification
2: Rectify the external ventilation of the
drive controller
3: Replace the fan
4: Seeking technical support
E0010: Braking unit fault
Counter-measures
Fault subcode:
1000: Brake unit failure
Cause of issue:
1: Brake circuit failure
1: Seek technical support
E0012: Motor auto-tuning fault
Counter-measures
Fault subcode:
1202: Synchronous motor static
auto-tuning detection current is
too small
1203: Synchronous motor static
auto-tuning timeout
1204: Stator resistance
self-tuning current is too large
1205: Stator resistance
auto-tuning timeout
1206: Rotor resistance
auto-tuning timeout
1207: No-load current self-tuning
is too small
Cause of issue:
1: Parameter auto-tuning timeout
1: Check the motor wiring
2: Enter the correct nameplate parameters
3: Seeking technical support
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