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Chapter 8 Maintenance, Fault Diagnosis and Countermeasure
Inverter has complete protective functions, such as over voltage,
over currency, over load, over heat, short circuit to the ground,
short circuit and etc. When Inverter gets error, there must be some
reasons, please find out the reason and remove the error. Restart
after dealing with the error. If there are other questions, please
contact us in time.
Error
Content
code
OC1
Over currency 4: Over high of Torsion
UCI
in acceleration
OC3
Over currency
UC3
in running
OC2
Over current in
UC2
deceleration
OU0
Over voltage in
stopping
Manual de Funcionamiento del variador de la serie H5000
Possible reason
1: Much short
Acceleration time
2: disarrangement of
V/F curve.
3: Motor wire with short
circuit to ground
lift
5: Over low of Electric
net voltage.
6: Directly start in
running motor
7: Disarrangement of
controller
9: Controller failed
1: Insulation of motor
wire
2: Fluctuation of load
3: Fluctuation of electric
net and the low
voltage
4: Disarrangement of
capacity
5: Higher power motor
starting up
6: Disturbing resource
1: much short
deceleration time
2: Disarrangement of
capacity
3: Disturbing resource
1: Much short
Acceleration time
2: Disarrangement of
capacity
224
Solution
1: Extend acceleration
time
2: Correct V/F curve.
3: Check insulation of
motor wire.
4: Reduce the value of
torsion lift.
5: Check electric net
6: Check load
7: Set tracking start
8: Increase capacity of
controller
9: Sent for repairing
1: Check insulation of
motor wire
2: Check blocking or bad
lubrication in loading
condition
3: Check electric net
voltage
4: Increase capacity of
controller
5: Resolve capacity of
transformer
6: Resolve disturbing
resource
1: Extend acceleration time
2: Increase capacity of
controller
3: Resolve disturbing
resource
1: Check power supply
voltage
2: Sent for repairing
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