Famco MONT72 Series, User Manual

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Shenzhen Hpmont Technology Co., Ltd. Chapter 8 Troubleshooting and Maintenance
MONT72 Series User Manual V1.0 - 85 -
Chapter 8 Troubleshooting and Maintenance
If a fault occurs, the keypad will display the fault alarm status. Meanwhile, faulty relay acts, accordingly
MONT72 stops output and the motor coasts to stop.
When fault alarm occurs, user should record the fault in detail and take proper action according to the
following table. If technical help is needed, contact the suppliers or directly call Shenzhen Hpmont
Technology Co., Ltd.
After the fault is eliminated, reset MONT72 by any of the following methods:
1. Keypad reset.
2. External reset terminal (DI terminal = No. 16 function).
3. Communication fault reset.
4. Switching on MONT72 after completely power off.
Lu: DC bus undervoltage Counter-measures
Cause of issue:
1: At the begining of power on
and at the end of power off
2: Input voltage is too low
3: Improper wiring leads to
undervoltage of hardware
1: It is normal status of power on and power
off
2: Check input power voltage
3: Check wiring and wire MONT72 properly
E0001: Acc. overcurrent
Counter-measures
Fault subcode:
101: Software Acc. overcurrent
102: Hardware Acc. overcurrent Cause of issue:
1: Drive controller and motor are
not wired correctly
2: Motor parameters are incorrect
3: Drive controller power
selection is too small
4: Acc. and Dec. time is too short 1: Correct the drive controller and motor
wiring
2: Set the correct motor parameters
3: Choosing the right drive controller power
4: Set the appropriate Acc. and Dec. time
5. Check the operation and brake contactor
for damage
6. Check if the brake is open
7. Motor line, motor phase or short circuit to
ground
E0002: Dec. overcurrent
Fault subcode:
201: Software Dec. overcurrent
202: Hardware Dec. overcurrent Cause of issue:
Same as E0001 failure
E0003: Constant speed overcurrent
Fault subcode:
301: Software zero speed or
constant speed over current
302: Hardware zero speed or
constant speed over current Cause of issue:
Same as E0001 failure
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