Operating Instructions

ManualsBrandsSiemens ManualsVariable Speed DriveEU-Declaration of Conformity, SINAMICS G120

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SINAMICS G120 CU230P-2 Control Units

List Manual (LH9), 04/2014, A5E33838102B AA

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4 Faults and alarms

4.2 List of faults and alarms

A01049 It is not possible to write to file

Message class: Hardware / software error (1)

Reaction: NONE

Acknowledge: NONE

Cause: It is not possible to write into a write-protected file (PSxxxxxx.acx). The write request was interrupted.

Alarm value (r2124, interpret decimal):

Drive object number.

Remedy: Check whether the "write protected" attribute has been set for the files in the non-volatile memory under

.../USER/SINAMICS/DATA/... When required, remove write protection and save again (e.g. set p0971 to 1).

F01054 CU: System limit exceeded

Message class: Error in the parameterization / configuration / commissioning procedure (18)

Reaction: OFF2

Acknowledge: IMMEDIATELY

Cause: At least one system overload has been identified.

Fault value (r0949, interpret decimal):

1: Computing time load too high (r9976[1]).

5: Peak load too high (r9976[5]).

Note:

As long as this fault is present, it is not possible to save the parameters (p0971).

Remedy: Re fault value = 1, 5:

- reduce the computing time load of the drive unit (r9976[1] and r9976[5]) to under 100 %.

- check the sampling times and adjust if necessary (p0115, p0799, p4099).

- de-activate function modules.

- de-activate drive objects.

- remove drive objects from the target topology.

- note the DRIVE-CLiQ topology rules and if required, change the DRIVE-CLiQ topology.

When using the Drive Control Chart (DCC) or free function blocks (FBLOCKS), the following applies

- the computing time load of the individual run-time groups on a drive object can be read out in r21005 (DCC) or

r20005 (FBLOCKS).

- if necessary, the assignment of the run-time group (p21000, p20000) can be changed in order to increase the

sampling time (r21001, r20001).

- if necessary, reduce the number of cyclically calculated blocks (DCC) and/or function blocks (FBLOCKS).

A01066 Buffer memory: 70% fill level reached or exceeded

Message class: General drive fault (19)

Reaction: NONE

Acknowledge: NONE

Cause: The non-volatile buffer memory for parameter changes is filled to at least 70%.

This can also occur if the buffer memory is active (p0014 = 1) and parameters are continually changed via a fieldbus

system.

Remedy: If required, de-activate and clear the buffer memory (p0014 = 0).

If required, clear the buffer memory (p0014 = 2).

In the following cases, the entries in the buffer memory are transferred into the ROM and then the buffer memory is

cleared:

- p0971 = 1

- power down/power up the Control Unit