Shenzhen Hpmont Technology Co., Ltd. Chapter 7 Troubleshooting and Maintenance
HD3N Series User Manual V1.1 - 101 -
Chapter 7 Troubleshooting and Maintenance
7.1 Troubleshooting
If a fault occurs, the keypad will display the fault alarm status. Meanwhile, faulty relay acts, accordingly
HD3N 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
Table 7-1. If technical help is needed, contact the suppliers or directly call Shenzhen Hpmont
Technology Co., Ltd.
After the fault is eliminated, reset HD3N 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 HD3N after completely power off.
Table 7-1 Fault and counter-measures
Fault Fault reasons Counter-measures
-Lu-
DC bus
undervoltage
• At the begining of power on and at
the end of power off
• Input voltage is too low
• Improper wiring leads to
undervoltage of hardware
• It is normal status of power on and
power off
• Check input power voltage
• Check wiring and wire HD3N 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
• Restart motor that is rotating after
sudden instantaneous voltage loss
• Did not auto-tune motor in vector
control mode
• Connect HD3N and motor properly
• Set correct motor parameter (F08.00 -
F08.04)
• Select inverter with higher rating
• Set proper Acc / Dec time (F03.01 -
F03.08)
• Set F02.00 = 2
• Do parameter auto-tuning (F08.06)
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
• Deceleration time is too short
• Improper wiring leads to
overvoltage of hardware
• Restart motor that is rotating after
sudden instantaneous voltage loss
• Improper selection of the braking
devices
• Check power input
• Set a proper value for Dec time
(F03.02, F03.04, F03.06, F03.08)
• Check wiring and wire HD3N properly
• Set F02.00 = 2
• Select recommended braking devices
according to section 8.2.
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)
Note: E0001 - E0003 and E0008can be reset only after reporting to 3s.
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