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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.

45

Initialization

SEW Eurodrive · MCBSM

What does 45 mean?

Immediate switch-off with inhibit due to an error during the inverter's initialization process. This suggests an internal fault preventing the unit from starting up correctly, indicating a fundamental problem with the inverter's internal state.

Common Causes

  • Error occurred during the drive's initialization or startup sequence.
  • Power-on self-test failed to complete successfully.
  • Invalid configuration parameters prevent proper initialization.
  • External signal preventing safe startup.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Cycle power to the inverter and attempt a restart.

  2. 2

    If the fault persists, contact SEW Service for advice, as this may indicate an internal hardware or firmware issue.

Browse all codes in this manual (50)
Verified technical data. Last updated: April 2026

Related Faults

100Vibration/warning Display error101Oscillation fault102Oil aging/warning Display error
Source: SEW Eurodrive MCBSM
View Official PDFSearch more codes in this manual