
Shenzhen Hpmont Technology Co., Ltd. Chapter
8
Troubleshooting
HD31 Series User Manual V1.1
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67
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Chapter 8
Troubleshooting
HD31 series inverter has inbuilt protective and warning self-diagnostic functions. If a fault occurs, the
fault code will be displayed on the keypad. At the same time, faulty relay acts, accordingly HD31 stops
output and the motor coasts to stop.
When fault or alarm occurs, user should record the fault details and take proper actions according to
the Table below. If some technical help is needed, contact the suppliers or directly call Shenzhen
Hpmont Technology Co., Ltd.
After the fault is eliminated, reset HD31 by any of the following methods:
1. Keypad.
2. External reset terminal (DI terminal set as No. 46 function).
3. Communication.
4. Switch on HD31 after switch off.
Table 8-1 Fault alarm description and counter-measures
Fault
Fault reasons
Counter-measures
-Lu-
DC bus undervoltage
•
At the begining of powering on and
at the end of powering off
•
Input voltage is too low
•
Improper wiring leads to
undervoltage of hardware
•
It is normal status of powering on and
powering off
•
Check input power voltage
•
Check wiring and wire HD31 properly
E0001
Inverter output
overcurrent
(in Acc process)
•
Improper connection between
inverter and motor
•
Improper motor parameters
•
The rating of the used inverter is too
small
•
Acc / Dec time is too short
•
Connect HD31 and motor properly
•
Set correct motor parameter (F08.00 -
F08.04)
•
Select inverter with higher rating
•
Set proper Acc / Dec time (F03.01,
F03.02)
E0002
Inverter output
overcurrent
(in Dec process)
E0003
Inverter output
overcurrent
(in constant speed
process)
E0004
DC bus over voltage
(in Acc process)
•
Input voltage is too high
•
Deceleartion time is too short
•
Improper wiring leads to
overvoltage of hardware
•
Improper selection of the braking
devices
•
Check power input
•
Set a proper value for Dec time
(F03.02)
•
Check wiring and wire HD31 properly
•
Select recommended braking devices
according to section 9.3.
E0005
DC bus over voltage
(in Dec process)
E0006
DC bus over voltage
(in constant speed
process)
E0007 Stall
overvoltage
•
Bus voltage is too high
•
The setting of stall overvoltage is too
low
•
Check power input or the function of
brake
•
Properly set the value of stall
overvoltage (F19.19)
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