Siemens SINAMICS G120 Operating Instructions Manual page 375

Table 8-4
LNK
Table 8-5
BF
Communication via Modbus or USS:
If the fieldbus monitoring is deactivated with p2040 = 0, the BF-LED remains dark, independent
of the communication state.
Table 8-6
BF
Converter with the CU240B-2 and CU240E-2 Control Units
Operating Instructions, 01/2017, FW V4.7 SP6, A5E34259001B AD
PROFINET fieldbus
Explanation
Communication via PROFINET is error-free
Device naming is active
No communication via PROFINET
Fieldbuses via RS 485 interface
Explanation
Data exchange between the inverter and control system is active
The fieldbus is active, however, the inverter is not receiving any process data
RDY When LED RDY flashes simultaneously:
Inverter waits until the power supply is switched off and switched on again after a
firmware update
No fieldbus connection is available
RDY When LED RDY flashes simultaneously:
Incorrect memory card
Firmware update failed
Firmware update is active
PROFINET and PROFIBUS fieldbuses
Explanation
Data exchange between the inverter and control system is active
Fieldbus interface is not being used
The fieldbus is improperly configured.
RDY When LED RDY flashes simultaneously:
Inverter waits until the power supply is switched off and switched on again after a
firmware update
Alarms, faults and system messages
8.1 Operating states indicated on LEDs
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