Siemens SINAMICS G120 CU240B-2 Operating Instructions Manual page 250

Alarms, faults and system messages
9.3 List of warnings
Number Cause
A07991
Motor data identification
activated
A30920 Temperature sensor fault
You will find additional information in the List Manual or in the STARTER online help.
Table 9- 8 The most important alarms for safety functions
Number Cause
A01666 Static 1 signal on the F-DI for
secure acknowledgement
A01698 Commissioning mode active for
safety functions
A01699 Shutdown path test required
You will find additional information in the parameter manual or in the online help of
STARTER.
250
Remedy
Switch on the motor and identify the motor data.
Check that the sensor is connected correctly.
Remedy
Setting F-DI to logical 0 signal
This message is withdrawn after the safety functions have been
commissioned
After the next time that the "STO" function is deselected, the message is
withdrawn and the monitoring time is reset
Operating Instructions, 07/2010, FW 4.3.2, A5E02299792B AA
Inverter with CU240B-2 and CU240E-2 Control Units