Inovance MD290T45G/55P User Manual

10. Troubleshooting
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10.5 Faults and Diagnostics
Troubleshoot the fault according to the following table. If the fault cannot be eliminated, contact the
agent or Inovance
Operating Panel Display Fault Name
Overcurrent during acceleration
Cause Possible Solution
Ground fault or short circuit exists in
the output circuit.
Check whether short-circuit occurs on the motor, motor cable or
contactor.
Motor parameters are incorrect. Se motor parameters according to the motor nameplate
correctly.
Acceleration time is too short. Increase acceleration time.
The current limit protection
parameters are set improperly.
Ensure that current limit is enabled (F3-19 = 1).
The setting of current limit level (F3-18) is too large. Adjust it
between 120% and 150%.
The setting of current limit gain (F3-20) is too small. Adjust it
between 20 and 40.
Customized torque boost or V/F
curve is not appropriate.
Adjust the customized torque boost or V/F curve.
The spinning motor is started. Enable the catching a spinning motor function or start the motor
after it stops.
The AC drive suffers external
interference.
View historical fault records. If the current value is far from
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interference does not exist, it is the drive board or hall device
problem.
Operating Panel Display Fault Name
Overcurrent during deceleration
Cause Possible Solution
Ground fault or short circuit exists in
the output circuit.
Check whether short-circuit occurs on the motor, motor cable or
contactor.
Motor parameters are incorrect. Se motor parameters according to the motor nameplate
correctly.
Acceleration time is too short. Increase acceleration time.
The current limit protection
parameters are set improperly.
Ensure that current limit is enabled (F3-19 = 1).
The setting of current limit level (F3-18) is too large.
Adjust it between 120% and 150%.
The setting of the current limit gain (F3-20) is too small.
Adjust it between 20 and 40.
Braking unit and braking resistor are
not installed.
Install braking unit and braking resistor.
The AC drive suffers external
interference.
View historical fault records. If the current value is far from
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interference does not exist, it is the drive board or hall device
problem.

Inovance MD290T45G/55P Specifications

General

Brand	Inovance
Model	MD290T45G/55P
Category	DC Drives
Language	English