Inovance MD320 Series, User Manual

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MD320/MD320N User Manual Fault Diagnosis and Solution
Acceleration over current
V/F Mode
Check if the output loop of the
inverter is earthed or short circuited
Perform troubleshooting
If the motor parameters are identified Identify the motor parameters
If the acceleration time is too short Prolong the acceleration time
If the manual boost torque
or V/F curve is proper
Adjust the manual boost
torque or V/F curve
If the voltage is too low
Adjust the voltage to normal range
If the rotating motor is started
Select start upon rotational
velocity follow-up or start
upon motor shutdown
If load is added suddenly
during the acceleration
Remove the additional load
The inverter model
is rather small
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Fig.8-2 Acceleration over current (ERR02)
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