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ErrorLib — Industrial Fault Code Library

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100

Vibration/warning Display error

SEW Eurodrive · MCBSM

What does 100 mean?

A vibration sensor (DUV10A) is signaling a warning, indicating unusual vibration levels in the drive. The system can continue operation for now, but the underlying cause of vibrations needs to be determined and addressed to prevent escalation to a critical fault and potential equipment damage.

Common Causes

  • Mechanical unbalance in rotating components (e.g., motor rotor, fan impeller) exceeding 0.05 mm/s RMS.
  • Misalignment between motor and driven equipment shafts (e.g., angular or parallel offset >0.05 mm).
  • Worn bearings in the motor, gearbox, or driven machine, causing increased radial or axial play.
  • Loosened mounting bolts on the motor, gearbox, or machine frame, leading to structural resonance.
  • Resonant frequencies within the mechanical structure excited by operational speeds (e.g., above 1500 RPM).

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    1. Measure vibration levels at motor bearings, gearbox, and driven load points using a calibrated vibration analyzer.

  2. 2

    2. Perform laser alignment verification between the motor shaft and driven equipment input shaft; adjust if deviation exceeds 0.05 mm.

  3. 3

    3. Inspect all motor and driven equipment mounting bolts; torque all bolts to manufacturer specifications (e.g., 80 Nm for M12 bolts).

  4. 4

    4. Conduct an oil analysis of the gearbox to detect metallic particles or increased viscosity indicative of bearing wear.

  5. 5

    5. Replace motor and/or gearbox bearings if excessive radial or axial play is detected (e.g., >0.05 mm).

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

Related Faults

101Oscillation fault102Oil aging/warning Display error103Oil aging/fault Display error
Source: SEW Eurodrive MCBSM
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