Shenzhen Hpmont Technology Co., Ltd. Chapter 8 Troubleshooting and Maintenance
HD09 Series User Manual V1.1 -55-
Chapter 8 Troubleshooting and Maintenance
8.1 Troubleshooting
HD09 series inverter has inbuilt protective and warning self-diagnostic functions. If a fault occurs, the
fault code will be displayed on the display keypad. At the same time, fault relay acts, accordingly the
inverter stops outputand the motor coasts to stop.
When fault or alarm occurs, please record the fault details and take proper actions according to the
below table. If you need some technical help, please contact to the suppliers or directly call Shenzhen
Hpmont Technology Co., Ltd.
After the fault is eliminated, please reset the inverter by any of the following methods:
1. Display keypad. Press (standard) / (optional).
2. External reset terminal (multi-function terminal set as No.46 function).
3. Communication.
4. Switching on the inverter after switching off.
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
• Please check input power voltage
• Please check wiring and wire the
inverter properly
E0001
Inverter acceleration
overcurrent
• Improper connection between
inverter and motor
• Improper motor parameters
• The rating of the used inverter is
too small
• Acceleration / deceleration time is
too short
• Connect the inverter and motor
properly
• Please set correct motor parameters
(F08.00 - F08.03)
• Select inverter with higher rating
Please set proper acceleration time
and deceleration time (F03.01, F03.02)
E0002
Inverter deceleration
overcurrent
E0003
Inverter constant
speed overcurrent
E0004
DC bus acceleration
over voltage
• Input voltage is too high
• Deceleartion time is too short
• Improper wiring leads to
overvoltage of hardware
• Improper selection of the braking
devices
• Please check power input
• Please set a proper value for
deceleration time (F03.02)
• Please check wiring and wire the
inverter properly
• Select according to the recommended
braking devices of section 5.2 Braking
Resistor, page 20
E0005
DC bus deceleration
over voltage
E0006
DC bus constant
speed over voltage
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