Siemens SINAMICS G120D Getting Started page 62

Troubleshooting
5.2 Status LED overview
Table 5- 3 Description of general status LEDS
RDY
GREEN - On
GREEN - flashing slowly
RED - on
RED - flashing slowly
RED - flashing quickly
RED - flashing quickly
RED - flashing quickly
Table 5- 4 Description of PROFIBUS communications LED
BF
Off
RED - flashing slowly
RED - flashing quickly
Table 5- 5 Description of SAFE LED
SAFE
YELLOW - On
YELLOW - flashing slowly
YELLOW - flashing quickly
Table 5- 6 Description of PROFINET communications LEDS
ACT
On/flashing
Off
Table 5- 7 Description of Digital Input and Output LEDs
DI / DO
On
Off
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BF
-
-
Off
RED - flashing slowly
-
RED - On
RED - flashing quickly
Description of function
Cyclic data exchange (or PROFIBUS not in use - p2030 = 0)
Bus fault - configuration fault
Bus fault:
- no data exchange
- baud rate search - cannot detect the correct baud rate
- no connection - the connection between the Inverter and PLC has been lost
Description of function
One or more safety functions are enabled - but not active
One or more safety functions are active - no safety function faults have occurred.
The Inverter has detected a safety function fault and initiated a stop response.
LNK
On
Off
Description of function
Input/Output connected and working
Input/Output not connected or has stopped working
Description of function
Ready for operation (no active fault)
Commissioning or reset of factory settings
Firmware update in progress
Firmware updated is complete - power ON reset required
General fault condition
Fault occurred during firmware update
Incompatible firmware or incorrect memory card
Description of function
Link active and data transfer active if flashing
Link inactive with no data transfer
SINAMICS G120D converter with control units CU240D-2 and CU250D-2
Getting Started, 04/12014, FW V4.7, A5E34262374B AA