Wecon VM Series - Main Error Codes and Solutions

WECON VM AC Drive User Manual V2.0
WECON technology Co., Ltd
- 29 -
5.3 Main Error Codes and Solutions
Code
Description
Possible Causes
Solutions
ERR02
Overcurrent
during
acceleration
There is grounding or short circuit
in the output circuit of the
controller
Eliminate peripheral faults
and check whether there is a
short circuit at the motor end
Acceleration time is set too short
Increase acceleration time
The controller model is selected
improperly(with too small power)
Select the controller that
matches the motor power
and load conditions
ERR03
Overcurrent
during
deceleration
There is grounding or short circuit
in the output circuit of the
controller
Eliminate peripheral faults
and check whether there is a
short circuit at the motor end
Deceleration time is set too short
Increase deceleration time
ERR04
Overcurrent at
constant speed
There is grounding or short circuit
in the output circuit of the
controller
Eliminate peripheral faults
and check whether there is a
short circuit at the motor end
Controller model is too small
Select the controller that
matches the motor power
and load conditions
ERR05
Overvoltage
during
acceleration
Input voltage is too high
Adjust input voltage to a
proper range
Acceleration time is set too short
Increase acceleration time
No braking unit and braking
resistor installed
Install braking unit and
braking resistor
ERR06
Overvoltage
during
deceleration
Input voltage is too high
Adjust input voltage to a
proper range
Deceleration time is set too short
Increase deceleration time
No braking unit and braking
resistor installed
Install braking unit and
braking resistor
ERR07
Overvoltage at
constant speed
Input voltage is too high
Adjust input voltage to a
proper range
ERR08
Snubber resistor
overload
The input voltage is not within
the specified range
Adjust input voltage to a
proper range
ERR09
Low input voltage
The input voltage is not within
the specified range
Adjust input voltage to a
proper range
Abnormal bus voltage detection;
abnormality of rectifier bridge,
snubber resistor, drive board and
control board
Seek for technical support
ERR10
VFD overload
Load is too large or motor is stuck
Reduce load and check motor
and mechanical condition
Controller model is too small
Select the controller that
matches the motor power
and load conditions
ERR11
Motor overload
The motor overload protection
parameters (FA.01-FA.02) are not
Correctly set them