Siemens MICROMASTER 440 - A0590 Alarm, no Signals from the Speed Encoder; A0600 RTOS Data Loss Alarm; A0700 CB Alarm 1; A0701 CB Alarm 2

Issue 01/06 Faults and Alarms
MICROMASTER 440 Parameter List
6SE6400-5BB00-0BP0
317
A0590 Alarm, no signals from the speed encoder
Cause
- no speed encoder signals
- inverter has changed-over to encoderless vector control.
Diagnosis & Remedy
Stop the inverter, and
- check the speed encoder, if an encoder is not being used, set P0400 to 0 and select the sensorless
closed-loop vector control mode (P1300 = 20 or 22)
- check the encoder connections
- check whether the encoder is operating correctly (set P1300 = 0 and operate the drive at a fixed speed
and check the encoder signal in r0061
- increase the permissible speed deviation in P0492
A0600 RTOS data loss alarm
Cause
- time slice overflow was identified
Diagnosis & Remedy
- use lower baud rate for USS
- de-activate inverter functions
A0700 CB alarm 1
Cause
- CB-(communications module)-specific
Diagnosis & Remedy
- refer to the CB User Manual
A0701 CB alarm 2
Cause
- CB-(communications module)-specific
Diagnosis & Remedy
- refer to the CB User Manual
A0702 CB alarm 3
Cause
- CB-(communications module)-specific
Diagnosis & Remedy
- refer to the CB User Manual
A0703 CB alarm 4
Cause
- CB-(communications module)-specific
Diagnosis & Remedy
- refer to the CB User Manual
A0704 CB alarm 5
Cause
- CB-(communications module)-specific
Diagnosis & Remedy
- refer to the CB User Manual
A0705 CB alarm 6
Cause
- CB-(Communications module)-specific
Diagnosis & Remedy
- refer to the CB User Manual
A0706 CB alarm 7
Cause
- CB-(Communications module)-specific
Diagnosis & Remedy
- refer to the CB User Manual
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