Cause : Firmware changed - At least one firmware file in the directory /SIEMENS/SINAMICS/ has been changed without authorization with respect to the version shipped from the factory. No changes are permitted in this directory.

Alarm value (r2124, interpret decimal):

0: Checksum of one file is incorrect.
1: File missing.
2: Too many files.
3: Incorrect firmware version.
4: Incorrect checksum of the back-up file.See also: r9925 (Firmware file incorrect)

Remedy: For the non-volatile memory for the firmware (memory card/device memory), restore the delivery condition.

Note: The file involved can be read out using parameter r9925.

See also: r9926 (Firmware check status)