Table 8-4 Fieldbuses via RS 485 interface
BF 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
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 8-5 PROFINET and PROFIBUS fieldbuses
BF Explanation
Data exchange between the inverter and control system is active
Fieldbus interface is not being used
The fieldbus is improperly configured.
RDY In conjunction with a synchronously flashing LED RDY:
Inverter waits until the power supply is switched off and switched on again after a
firmware update
No communication with higher-level controller
RDY In conjunction with an asynchronously flashing LED RDY:
Incorrect memory card
Firmware update failed
Firmware update is active
Alarms, faults and system messages
8.1 Operating states indicated on LEDs
Converter with the CU230P-2 Control Units
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257946B AE 397
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