Quick Start Guide of CV10- ControlVIT Series
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EL086A01
Fault code
Fault type
Possible cause
Solutions
UV
DC bus
Under-voltage
1. The voltage of the power
supply is too low.
2. The overvoltage stall
protection is not opened.
1. Check the input power of
the supply line.
2. Check the setting of relative
function codes.
OL1 Motor
overload
1. The voltage of the power
supply is too low.
2. The motor setting rated
current is incorrect.
3. The motor stall or load
transients are too strong.
1. Check the power of the
supply line
2. Reset the rated current of
the motor
3. Check the load and adjust
the torque lift
OL2 Inverter
overload
1. The acceleration is too fast
2. Reset the rotating motor
3. The voltage of the power
supply is too low.
4. The load is too heavy.
5. Close loop vector control,
reverse direction of the code
panel and long low-speed
operation
1. Increase the ACC time
2. Avoid the restarting after
stopping.
3. Check the power of the
supply line
4. Select an inverter with
bigger power.
5. Select a proper motor.
OL3 Electrical
overload
The inverter will report
overload pre-alarm according
to the set value.
Check the load and the
overload pre-alarm point.
OH1 Rectifier
overheat
1. Air duct jam or fan damage
2. Ambient temperature is too
high.
3. The time of overload
running is too long.
1. Refer to the overcurrent
solution
2. Redistribute
dredge the wind channel or
change the fan
3. Low the ambient
temperature
4. Check and reconnect
5. Change the power
6. Change the power unit
7. Change the main control
panel
OH2 IGBT
overheat
EF External
fault
S1
~
S5 external fault input
terminals action
Check the external device
input
CE Communication
error
1. The baud rate setting is
incorrect.
2. Fault occurs to the
communication wiring.
1. Set proper baud rate
2. Check the communication
connection distribution
3. Set proper communication
Fault code
Fault type
Possible cause
Solutions
3. The communication
address is wrong.
4. There is strong interference
to the communication.
address.
4. Change or replace the
connection distribution or
improve the anti-interference
capability.
EEP EEPROM
fault
1. Error of controlling the write
and read of the parameters
2. Damage to EEPROM
1. Press STOP/RST to reset
2. Change the main control
panel
PIDE
PID feedback fault
1. PID feedback offline
2. PID feedback source
disappear
1. Check the PID feedback
signal
2. Check the PID feedback
source
END
Time reach of factory
setting
The actual running time of the
inverter is above the internal
setting running time.
Ask for the supplier and adjust
the setting running time.
LL
Electronic underload
fault
The inverter will report the
underload pre-alarm
according to the set value.
Check the load and the
underload pre-alarm point.
●
Other states
Fault code
Fault type
Possible cause
Solutions
PoFF
System power off
System power off or low DC voltage Check the grid
●
Fault reset
The inverter can be reset by STOP/RST, digital input, and power switching-off. After the problems
settlement, the motor can be restarted.
Only qualified trained people can settle the fault and please do as the “safety precautions”.
