HC2-E1000 SERIES
- 16 -
Chapter 5 Fault Alarm and Solution
Error
Code
Alarm Possible Reason Solution
OC-1
Over
Current in
Acceleration
1) Too short acceleration time
2) Disarrangement of V/F curve
3) Restart in running the motor
4) The capacity is not suitable
for the motor
5) Disarrangement of controller
1) Extend acceleration time
2) Correct V/F curve
3) Restart after running the
motor
4) Select a suitable motor
5) Check the connection
OC-2
Over
Current in
Deceleration
1) Too short deceleration time
2) Bigger potential load or
loading inertia
3) Less the capacity
4) Disarrangement of controller
1) Extend deceleration time
2) Add braking resistors
3) Select a suitable motor
4) Check the connection
OC
Over
Current in
Constant
speed
1) Too low voltage
2) Less the capacity
3) Restart in running the motor
4) Too heavy load
1) Check the input power
2) Check the phrase
3) Select a suitable motor
4) Restart after running the
motor
5) Check the connection
OE-1
Over
Voltage in
Running
1) Abnormal input voltage
2) Restart in running the motor
1) Check the input power
2) Restart after running the
motor
OE-2
Over
Voltage in
deceleration
1) Too short deceleration time
2) Bigger potential load or
loading inertia
3) Abnormal voltage
1) Extend deceleration time
2) Add braking resistors
3) Check the input power
OE
Over
Voltage in
constant
speed
1)Abnormal input voltage
1) Install input voltage
2) Check the input voltage