EL
ErrorLib
Brands
||
  1. Home
  2. SEW Eurodrive
  3. Drives
  4. 04
About·Privacy·Terms

ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

04

Brake chopper error

SEW Eurodrive · Drives

What does 04 mean?

An error has occurred in the internal brake chopper circuit of the MOVIMOT drive. This circuit is responsible for dissipating regenerative energy generated by the motor during deceleration.

Common Causes

  • Internal hardware fault of the brake chopper circuit

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify the drive's deceleration ramp times and braking parameters are correctly configured for the application load and inertia.

  2. 2

    Inspect any externally connected braking resistor and its associated cabling for proper connection, damage, and correct resistance value (if applicable).

  3. 3

    Measure the DC bus voltage during operation, especially during deceleration, to check for overvoltage conditions.

  4. 4

    Check the drive's diagnostic logs or status screens for additional related fault codes or warnings.

Browse all codes in this manual (39)
Verified technical data. Last updated: April 2026

Related Faults

01Overcurrent in output stage06Mains phase failure07DC link voltage too high
Source: SEW Eurodrive Drives
Open Manual (Page 115)Search more codes in this manual