Siemens SINAMICS G120 Original Instructions Manual page 357

Table 11- 4
YELLOW - variable
LED BF display for CANopen
In addition to the signal states "on" and "off" there are three different flashing frequencies:
Table 11- 5
GREEN - single flash Bus state "Stopped"
RED - single flash
RED - double flash
YELLOW - variable
Inverter with CU230P-2 Control Units
Operating Instructions, 11/2013, FW V4.6.6, A5E02430659B AG
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
Communication diagnostics via CANopen
BF LED Explanation
GREEN - on Bus state "Operational"
GREEN - fast Bus state "Pre-Operational"
RED - on No bus
Alarm - limit reached
Error event in control (Error Control Event)
Firmware update in progress
frequency
Alarms, faults and system messages
11.1 Operating states indicated on LEDs
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