VM1000 Series
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Chapter 7 Faults and Solutions
7.1 Fault Code Table
In VM1000, there are a lot of warning information and protection functions. Once the
abnormal failure occurred, the protection function is activated and the VFD output is stopped.
The fault code is displayed on AC drive display panel. Before seeking for service, users can
conduct a detection on your own , analyze problems and find out the solutions according to this
chapter. If it belongs to the reasons mentioned in the dashed box, please seek services, or
contact the agent or SAJ-electric.
Whether the output circuit is
grounded or short circuited
Whether the acceleration time is too
short
Whether the manual torque boost
or V/F curve is appropriate
Whether the voltage is too low
Yes
No
Yes
No
No
Yes
No
Yes
Yes
Yes
No
Eliminate external faults
Perform motor parameter
calculation
Adjust the manual torque
boost or V/F curve
Adjust the voltage to a normal
range
Cancel the sudden added
load
Overcurrent at acceleration
Whether the motor parameter
calculation is performed
Whether the startup operation is
performed on the rotating motor.
Whether a sudden load is added
during acceleration
The model selection of VFD
is too small
No
Yes
No
Increase the acceleration
time
Select rotational speed tracking
restart or start the motor after it
stops.
Figure 7-1 Overcurrent at acceleration (Err02)
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