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

Alarms, faults and system messages

9.1 Operating states indicated on LEDs

9.1 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 9- 1
GREEN - slow
Table 9- 2
Table 9- 3
246
Inverter diagnostics
LED
RDY
GREEN - on
RED - fast
RED - fast RED - fast
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
Incorrect memory card
Operating Instructions, 01/2011, FW 4.4, A5E02299792B AB
Inverter with CU240B-2 and CU240E-2 Control Units