Siemens SINAMICS G120 Operating Instructions Manual page 367

Table 11- 4
YELLOW - variable
Table 11- 5
Converter with the CU250S-2 Control Unit (vector)
Operating Instructions, 06/2013, FW V4.6, A5E31759476B AB
Communication diagnostics via PROFIBUS DP
LED BF Explanation
off Cyclic data exchange (or PROFIBUS not used, p2030 = 0)
RED - slow Bus fault - configuration fault
RED - fast Bus fault
- no data exchange
- baud rate search
- no connection
Firmware update in progress
frequency
Diagnostics of the safety functions
SAFE LED Meaning
YELLOW - on One or more safety functions are enabled, but not active.
YELLOW - slow One or more safety functions are active; no safety function faults have
occurred.
YELLOW - rapid The converter has detected a safety function fault and initiated a STOP
response.
Alarms, faults and system messages
11.1 Operating states indicated on LEDs
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