Specifications

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8.
8.
8.
8. TROUBLE
TROUBLE
TROUBLE
TROUBLE SHOOTING
SHOOTING
SHOOTING
SHOOTING
8.1
8.1
8.1
8.1 Fa
Fa
Fa
Fa ult
ult
ult
ult and
and
and
and Trouble
Trouble
Trouble
Trouble shooting
shooting
shooting
shooting
Fault
Fault
Fault
Fault
Code
Code
Code
Code
Fault
Fault
Fault
Fault Type
Type
Type
Type Reason
Reason
Reason
Reason Solution
Solution
Solution
Solution
SC 1 IGBT Ph-U fault
1. Acc time is too short.
2. IGBT module fault.
3. Malfunction caused by
interference.
4.Grounding is not properly.
1. Increase Acc time.
2. Ask for support.
3. Inspect external equipment and
eliminate interference.
SC 2 IGBT Ph- V fault
SC 3 IGBT Ph- W fault
OC1
Over-current when
acceleration
1. Acc time is too short.
2 ． The voltage of the grid is
too low.
3 ． The power of the inverter is
too low.
1. Increase Acc time.
2. Check the input power
3. Select bigger capacity inverter.
OC2
Over-current when
deceleration
1. Dec time is too short.
2. The torque of the load
inertia is big.
3. The power of the inverter is
too low.
1. Increase Dec time.
2.Install a proper energy
consumption braking components
3. Select bigger capacity inverter.
OC3
Over-current when
constant speed
running
1 The load transients or is
abnormal.
2 ． The voltage of the grid is
1. Check the load or reduce the
transient of the load
2. Check the input power supply