Fault code

Inovance MD280 Err03 Overcurrent during deceleration

Diagnostic context

What Err03 means on Inovance MD280

Err03 is the MD280 overcurrent during deceleration. 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 deceleration 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 deceleration time is too short.
  • The voltage is too low.
  • A sudden load is added during deceleration.
  • The braking unit and braking resistor are not installed.

Recommended checks and actions

  • Eliminate external faults.
  • Increase the deceleration time.
  • Adjust the voltage to normal range.
  • Remove the added load.
  • Install the braking unit and braking resistor.

Technical source

Inovance MD280 User Manual EN - Err03 troubleshooting — page 159

Inovance MD280 troubleshooting VI - Err03 — page 8