Siemens SINAMICS G120D Operating Instructions Manual page 329

Explanation of status LEDs
An explanation of the various states indicated by the LEDs are given in the tables below.
Table 10- 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 10- 2 Description of PROFIBUS communications LED
BF
Off
RED - flashing slowly
RED - flashing quickly
Table 10- 3 Description of SAFE LED
SAFE
YELLOW - On
YELLOW - flashing slowly
YELLOW - flashing quickly
Table 10- 4 Description of PROFINET communications LEDS
ACT
On/flashing
Off
Table 10- 5 Description of Digital Input and Output LEDs
DI / DO
On
Off
Converter with control units CU250D-2
Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB
BF Description of function
- Ready for operation (no active fault)
- Commissioning or reset of factory settings
Off Firmware update in progress
RED - flashing slowly Firmware updated is complete - power ON reset required
- General fault condition
RED - On Fault occurred during firmware update
RED - flashing quickly Incorrect settings, incompatible firmware or incorrect memory card
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 Description of function
On Link active and data transfer active if flashing
Off Link inactive with no data transfer
Description of function
Input/Output connected and working
Input/Output not connected or has stopped working
Alarms, faults and system messages
10.3 Status LED overview
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