Siemens SINAMICS G120 List Manual page 1007

Remedy: - carry out a POWER ON (switch-off/switch-on). After switching on, the module reboots from the valid
parameterization (if available).
- restore the valid parameterization.
Examples:
a) Carry out a first commissioning, save, carry out a POWER ON (switch-off/switch-on).
b) Load another valid parameter backup (e.g. from the memory card), save, carry out a POWER ON (switch-
off/switch-on).
Note:
If the fault situation is repeated, then this fault is again output after several interrupted boots.
A01019 Writing to the removable data medium unsuccessful
Message class: Hardware/software error (1)
Reaction: NONE
Acknowledge: NONE
Cause: The write access to the removable data medium was unsuccessful.
Remedy: Remove and check the removable data medium. Then run the data backup again.
A01020 Writing to RAM disk unsuccessful
Message class: Hardware/software error (1)
Reaction: NONE
Acknowledge: NONE
Cause: A write access to the internal RAM disk was unsuccessful.
Remedy: Adapt the file size for the system logbook to the internal RAM disk (p9930).
See also: p9930 (System logbook activation)
A01021 Removable data medium as USB data storage medium from the PC used
Message class: General drive fault (19)
Reaction: NONE
Acknowledge: NONE
Cause: The removable data medium is used as USB data storage medium from a PC
As a consequence, the drive cannot access the removable data medium. When backing up, the configuration data
cannot be saved on the removable data medium.
Alarm value (r2124, interpret decimal):
1: The know-how protection as well as the copy protection for the removable data medium is active. Backup is
inhibited.
2: The configuration data are only backed up in the Control Unit.
See also: r7760 (Write protection/know-how protection status), r9401 (Safely remove memory card status)
Remedy: Deactivate the USB connection to the PC and back up the configuration data.
Note:
The alarm is automatically canceled when disconnecting the USB connection or when removing the removable data
medium.
See also: r9401 (Safely remove memory card status)
F01023 Software timeout (internal)
Message class: Hardware/software error (1)
Reaction: NONE
Acknowledge: IMMEDIATELY
Cause: An internal software timeout has occurred.
Fault value (r0949, interpret decimal):
Only for internal Siemens troubleshooting.
Remedy: - carry out a POWER ON (switch-off/switch-on) for all components.
- upgrade firmware to later version.
- contact Technical Support.
SINAMICS G120 CU250S-2 Control Units
List Manual, 09/2017, A5E33842890
4 Faults and alarms
4.2 List of faults and alarms
1007