Siemens Micromaster 430 or MM430 Drive
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Jun 11, 2022 10:19 am
How can resolve problem A0590 alarm in siemens micromaster 430 or MM430 drive ?
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Jun 11, 2022 10:20 am
Cause : Encoder feedback loss warning. Signal from Encoder lost and Inverter has switched to sensorless vector control.
Diagnose & Remedy
Stop inverter and then
1. Check encoder fitted. If encoder not fitted, set P0400 = 0 and select SLVC mode (P1300 = 20 or 22)
2. If encoder fitted, check correct encoder selected (check encoder set-up in P0400).
3. Check connections between encoder and inverter
4. Check encoder not faulty (select P1300 = 0, run at fixed speed, check encoder feedback signal in r0061)
5. Increase encoder loss threshold in P0492
