Siemens Micromaster 440 or MM440 Drive
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Jun 11, 2022 5:18 pm
How can resolve problem F0090 fault in siemens micromaster 440 or MM440 drive ?
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Jun 11, 2022 5:19 pm
Cause : Encoder feedback loss - Signal from Encoder lost (check alarm value r0949)
Diagnosis & Remedy
- Alarm value = 0: Encoder signal lost.
- Alarm value = 5: Encoder not configured in P0400, but required for sensored control(P1300 = 21 or 23).
- Alarm value = 6: Encoder module not found, but configured in P0400.
- Check connections between encoder and inverter. Check that encoder not faulty (select P1300 = 0, run at fixed speed, check encoder feedback signal in r0061)
- Increase encoder loss threshold in P0492
