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. Measure vibration levels at motor bearings, gearbox, and driven load points using a calibrated vibration analyzer.
- 2
2. Perform laser alignment verification between the motor shaft and driven equipment input shaft; adjust if deviation exceeds 0.05 mm.
- 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. Conduct an oil analysis of the gearbox to detect metallic particles or increased viscosity indicative of bearing wear.
- 5
5. Replace motor and/or gearbox bearings if excessive radial or axial play is detected (e.g., >0.05 mm).