Siemens SINAMICS G120 List Manual page 1012

4 Faults and alarms
4.2 List of faults and alarms
Remedy: - use the current version of the commissioning software.
- modify the offline project and download again (e.g. compare the motor and Power Module in the offline project and
on the drive).
- change the drive state (is a drive rotating or is there a message/signal?).
- carefully note any other messages/signals and remove their cause.
- boot from previously saved files (switch-off/switch-on or p0970).
F01044 CU: Descriptive data error
Message class: Hardware/software error (1)
Reaction: OFF2
Acknowledge: POWER ON
Cause: An error was detected when loading the descriptive data saved in the non-volatile memory.
Remedy: Replace the memory card or Control Unit.
A01045 Configuring data invalid
Message class: Hardware/software error (1)
Reaction: NONE
Acknowledge: NONE
Cause: An error was detected when evaluating the parameter files PSxxxyyy.ACX, PTxxxyyy.ACX, CAxxxyyy.ACX, or
CCxxxyyy.ACX saved in the non-volatile memory. Because of this, under certain circumstances, several of the saved
parameter values were not able to be accepted. Also see r9406 up to r9408.
Alarm value (r2124, interpret hexadecimal):
Only for internal Siemens troubleshooting.
Remedy: - check the parameters displayed in r9406 up to r9408, and correct these if required.
- Restore the factory setting using (p0970 = 1) and re-load the project into the drive unit.
Then save the parameterization in STARTER using the function "Copy RAM to ROM" or with p0971 = 1. This
overwrites the incorrect parameter files in the non-volatile memory – and the alarm is withdrawn.
See also: r9406 (PS file parameter number parameter not transferred), r9407 (PS file parameter index parameter not
transferred), r9408 (PS file fault code parameter not transferred)
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: A system overload was identified as a result of too many functions requiring a lot of computation time.
At least one of the following rules was not complied with:
- it is not permissible to activate function module "Position control" (r0108.3) in conjunction with "Free function blocks"
(r0108.18).
- it is not permissible to activate function module "Basic positioner" (r0108.4) in conjunction with "Free function
blocks" (r0108.18).
- when the function module "Free function blocks" is activated (r0108.18), only 1 speed encoder must be operated.
Remedy: Configure the drive device corresponding to the rules listed under cause.
1012
SINAMICS G120 CU250S-2 Control Units
List Manual, 09/2017, A5E33842890