Cause : Parameter save necessary. Defective or missing files were detected on the memory card when booting.

Fault value (r0949, decimal interpretation):
1: Source file cannot be opened.
2: Source file cannot be read.
3: Target directory cannot be set up.
4. Target file cannot be set up/opened.
5. Target file cannot be written to.

Remedy:

- save the parameters.
- download the project again to the drive unit.
- update the firmware
- if required, replace the Control Unit and/or memory card card.