E010.1
INOVANCE
MD520 VFD
AC drive overload
⚠ Olası Nedenler
- Excessive load or locked-rotor
- High carrier frequency
- Low bus voltage during high speed running with heavy load
- Derating at low frequency
- Output grounding
- Output phase loss
- Motor parameter error
- Flying start not applied when motor started during rotation
- Encoder direction error
- AC drive model setting error
- Inadequate power rating
✓ Çözüm Adımları
- Reduce load; check motor and mechanical conditions
- Decrease carrier frequency
- Increase input voltage; enable overmodulation function
- Avoid heavy load at low speed or select higher power drive
- Check for output ground points
- Check for output phase loss
- Check motor nameplate parameters and perform auto-tuning
- Enable flying start (F6-00)
- Change encoder A/B phase sequence (F1-30)
- Set AC drive model correctly
- Replace with higher power drive
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