Operating States Indicated On Leds - Siemens SINAMICS G120 Operating Instructions Manual

12.1

Operating states indicated on LEDs

The LED RDY (Ready) is temporarily orange after the power supply voltage is switched-on.
As soon as the color of the LED RDY changes to either red or green, the LEDs signal the
inverter state.
Signal states of the LED
In addition to the signal states "on" and "off" there are two different flashing frequencies:
Table 12- 1
Table 12- 2
Table 12- 3
Table 12- 4
SINAMICS G120C frequency converter
Operating Instructions, 03/2012, FW V4.5, A5E02999804B AB
Inverter diagnostics
LED
RDY
GREEN - on
GREEN - slow
RED - fast
RED - fast
Inverter diagnostics
LNK LED Explanation
GREEN - on The communication via PROFINET is in order.
GREEN - slow Device naming is active.
Off No communication via PROFINET.
Communication diagnostics via RS485
LED BF Explanation
On Receive process data
RED - slow Bus active - no process data
RED - fast No bus activity
Communication diagnostics via PROFIBUS DP
LED BF Explanation
off Cyclic data exchange (or PROFIBUS not used, p2030 = 0)
RED - slow Bus fault - configuration fault
RED - fast Bus fault
- no data exchange
- baud rate search
- no connection
Explanation
BF
--- There is presently no fault
--- Commissioning or reset to factory settings
--- There is presently a fault
RED - fast Incorrect memory card
Alarms, faults and system messages
12.1 Operating states indicated on LEDs
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