15.1.6 LED COM of option module OM-IIoT
Behavior of the LEDs
Table 15-2 Signal states of the LED COM
COM Description Remedy
The power supply is missing or outside the permissible tolerance. Check power supply
Green
The option module is ready for operation.
Orange
Temporary state after switching on the power supply or when
the rmware is being updated
Red - or‐
ange
A le is being transferred to the option module. Wait for:
Green
Green - red
Firmware is being updated. Wait for:
Green - red
Green - red
The rmware update is completed. Switch o the converter power supply and
switch on again
System messages
15.1LEDs
SINAMICS G220 converter
740 Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB