Fault code

Inovance MD280 Err02 Overcurrent during acceleration

Diagnostic context

What Err02 means on Inovance MD280

Err02 is the MD280 overcurrent during acceleration. The manufacturer lists the output circuit is grounded or short circuited. as one of the documented causes.

Operating context: Start with the manufacturer troubleshooting sequence. Eliminate external faults. Increase the acceleration time.

This diagnostic context is an editorial explanation. The possible causes and recommended checks below are the verified manufacturer troubleshooting content.

Possible causes

  • The output circuit is grounded or short circuited.
  • The acceleration time is too short.
  • Manual torque boost or V/F curve is not appropriate.
  • The voltage is too low.
  • The startup operation is performed on the rotating motor.
  • A sudden load is added during acceleration.
  • The AC drive model is of too small power class.

Recommended checks and actions

  • Eliminate external faults.
  • Increase the acceleration time.
  • Adjust the manual torque boost or V/F curve.
  • Adjust the voltage to normal range.
  • Select rotational speed tracking restart or start the motor after it stops.
  • Remove the added load.
  • Select an AC drive of higher power class.

Technical source

Inovance MD280 User Manual EN - Err02 troubleshooting — page 159

Inovance MD280 troubleshooting VI - Err02 — page 7