Inovance MD290T45G/55P User Manual

10. Troubleshooting
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11
Operating Panel Display Fault Name
Overvoltage at constant speed
Cause Possible Solution
The overvoltage stall prevention
parameters are set improperly.
Ensure that the voltage limit function is enabled (F3-23 = 1).
The setting of voltage limit (F3-22) is too large. Adjust it
between 700 V and 770 V.
The setting of frequency gain for voltage limit (F3-24) is too
small. Adjust it between 30 and 50.
The setting of frequency rise threshold during voltage limit (F3-
26) is too small. Adjust it between 5 Hz and 20 Hz.
An external force drives motor during
running.
Cancel the external force or install a braking resistor
Operating Panel Display Fault Name
Pre-charge resistor fault
Cause Possible Solution
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undervoltage threshold continuously.
Contact the agent or Inovance.
Operating Panel Display Fault Name
Undervoltage
Cause Possible Solution
Instantaneous power failure occurs (QDEOHWKHSRZHUGLSULGHWKURXJKIXQFWLRQ)
The AC drive's input voltage is not
within the permissible range.
Adjust the voltage to normal range.
The bus voltage is abnormal. Contact the agent or Inovance.
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resistor, the drive board or the
control board are abnormal.
Contact the agent or Inovance.
Operating Panel Display Fault Name
AC drive overload
Cause Possible Solution
Load is too heavy or locked-rotor
occurs on motor.
Reduce load or check motor and mechanical conditions.
The AC drive power class is small. Replace a drive of larger power class.
Operating Panel Display Fault Name
Motor overload
Cause Possible Solution
F9-01 (Motor overload protection
gain) is set improperly.
Set F9-01 correctly.
Load is too heavy or locked-rotor
occurs on motor.
Reduce load or check motor and mechanical conditions.

Inovance MD290T45G/55P Specifications

General

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