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7.1 Fault and Trouble shooting
Fault
Fault Type
Code
OUT1
IGBT Ph-U fault
OUT2
IGBT Ph-V fault
OUT3
IGBT Ph-W fault
Over-current when
OC1
acceleration
Over-current when
OC2
deceleration
Over-current when
OC3
constant speed
running
7.TROUBLE SHOOTING
Reason
1. Acc/Dec time is too short.
2. IGBT module fault.
3. Malfunction caused by
interference.
4. Grounding is not properly.
1. Short-circuit or ground
fault occurred at inverter
output.
2. Load is too heavy or
Acc/Dec time is too short.
3. V/F curve is not suitable.
4. Sudden change of load.
83
Solution
1. Increase Acc/Dec
time.
2. Ask for support.
3. Inspect external
equipment and eliminate
interference.
1. Inspect whether
motor damaged,
insulation worn or cable
damaged.
2. Increase Acc/Dec
time or select bigger
capacity inverter.
3. I5000ck and adjust V/F
curve.
I5000ck the load.
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