Siemens Micromaster 440 Operating Instructions Manual page 101

Issue 12/02
A0590 Encoder feedback loss warning
Possible Causes
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
A0600 RTOS Overrun Warning
A0700 CB warning 1
Possible Causes
CB (communication board) specific
Diagnose & Remedy
See CB user manual
A0701 CB warning 2
Possible Causes
CB (communication board) specific
Diagnose & Remedy
See CB user manual
A0702 CB warning 3
Possible Causes
CB (communication board) specific
Diagnose & Remedy
See CB user manual
A0703 CB warning 4
Possible Causes
CB (communication board) specific
Diagnose & Remedy
See CB user manual
A0704 CB warning 5
Possible Causes
CB (communication board) specific
Diagnose & Remedy
See CB user manual
A0705 CB warning 6
Possible Causes
CB (communication board) specific
Diagnose & Remedy
See CB user manual
A0706 CB warning 7
Possible Causes
CB (communication board) specific
Diagnose & Remedy
See CB user manual
MICROMASTER 440
6SE6400-5AW00-0BP0
Operating Instructions
6 Troubleshooting
101