Shenzhen Hpmont Technology Co., Ltd Chapter 8 Troubleshooting
HD5L Series Controller User Manual ―99―
Chapter 8 Troubleshooting
If a fault occurs, the panel will display the fault alarm state. At the same time, fault relay acts,
accordingly the controller stops output and the motor coasts to stop.
When fault alarm occurs, please record the fault in detail and take proper action according to the
Table 8-1. 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 controller by any of the following methods:
1. Panel reset.
2. External reset terminal (multi-function terminal set as No. 16 function).
3. Communication fault reset.
4. Switching on the controller after completely power off.
Table 8-1 Fault alarm description and counter-measures
Fault code Fault name Possible reasons of fault 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 state of power on and
power off
• Please check input power
voltage
• Please check wiring and wire the
controller properly
E0001 Acc overcurrent
• Improper connection between
controller and motor
• Improper motor parameters
• The rating of the used controller
is too small
• Acceleration/deceleration time
is too short
• Connect the controller and motor
properly
• Please set correct motor
parameters
• Select controller with higher
rating
• Please set proper acceleration
time and deceleration time
E0002 Dec overcurrent
E0003
Constant speed
overcurrent
E0004 Acc over voltage
• Input voltage is too high
• Deceleartion time is too short
• Improper wiring leads to
overvoltage of hardware
• Please check power input
• Please set a proper value for
deceleration time
• Please check wiring and wire the
controller properly
E0005 Dec over voltage
E0006
Constant speed
over voltage
E0008
Power module
faulty
• Short circuit between phases
output or the ground
• Output current is too high
• Power module is damaged
• Please check the connection and
connect the wire properly
• Please check the connection and
mechanism
• Please contact the supplier for
repairing
E0009
Heatsink
overheated
• Ambient temperature is too
high
• Controller external ventilation is
not good
• Fan fault
• Fault occurs to temperature
detection circuit
• Please use controller with higher
power capacity
• Improve the ventilation around
the controller
• Replace the cooling fan
• Please seek technical support
8
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