Faults and Alarms
List of Fault and Alarm messages
3-394
© Siemens AG 2007 All Rights Reserved
SINAMICS G120 Control Units CU240S, Edition 05/2007
A00590 Encoder feedback loss warning
Reaction: NONE
Acknowledge: NONE
Cause: Signal from Encoder lost; Inverter might have switched to sensorless vector control.
Check also alarm value r0947:
• r0949 = 0: Encoder signal lost.
• r0949 = 5: Encoder not configured in P0400, but required for sensored control (P1300 = 21 or 23).
Remedy: Stop inverter and then
• Check encoder fitted. If encoder fitted and r0949 = 5, select encoder type via P0400.
• If encoder fitted and r0949 = 6, check connections between encoder module and inverter.
• If encoder not fitted and r0949 = 5, select SLVC mode (P1300 = 20 or 22).
• If encoder not fitted and r0949 = 6, set P0400 = 0.
• If encoder fitted, check correct encoder selected (check encoder setup 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.
A00600 RTOS Overrun Warning
Reaction: NONE
Acknowledge: NONE
Cause: Internal time slice overrun
Remedy: Contact Service Department
A00700 PROFIBUS: Parameter or configuration error
Reaction: NONE
Acknowledge: NONE
Cause: wrong parameter and/or configuration telegram
Remedy: check parameter and/or configuration telegram
A00701 PROFIBUS: DoubleWord error
Reaction: NONE
Acknowledge: NONE
Cause: error in double word reference table
Remedy: power cycle
A00702 PROFIBUS: no bus detection
Reaction: NONE
Acknowledge: NONE
Cause: connection error, no bus initialization (no master), no clear bus signal, ...
Remedy: check the cables and the bus hardware
A00703 PROFIBUS: no reference values
Reaction: NONE
Acknowledge: NONE
Cause: no or empty control word 1 received
Remedy: check bus transmission
A00704 PROFIBUS: loose of links
Reaction: NONE
Acknowledge: NONE
Cause: lost subscriber information
Remedy: temporary, if permanent the fault detection is activated
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