Siemens SINAMICS G120D Operating Instructions Manual page 242

Alarms, faults and system messages
11.3 Status LED overview
Explanation of status LEDs
An explanation of the various states indicated by the LEDs are given in the tables below.
Table 11- 1 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 11- 2 Description of PROFIBUS communications LED
BF LED
Off
RED - flashing slowly
RED - flashing quickly
Table 11- 3 Description of SAFE LED
SAFE LED
YELLOW - On
YELLOW - flashing slowly
YELLOW - flashing quickly
Table 11- 4 Description of PROFINET communications LEDS
LED
ACT LNK
On/flashing On
Off Off
Table 11- 5 Description of Digital Input and Output LEDs
DI / DO LED
On
Off
242
LED
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.
Description of function
Link active and data transfer active if flashing
Link inactive with no data transfer
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
Operating Instructions, 04/2014, FW V4.7, A5E34262100B AA
Converter with control units CU240D-2