NORD Drivesystems BU0290 - Manual (Page 20)

PROFINET bus module for NORD frequency inverters SK 200E
20 Subject to technical amendments BU 0290 GB-4312
3.1.1.2 Technology unit SK TU4-PNT
LEDs LINK and ACT
The single colour LINK LEDs indicate the physical connection to
the Ethernet bus.
The single colourACT (Activity) LEDs indicate bus activity (data
transfer).
LEDs RUN and BF
The single colour LEDs RUN (PROFINET RUN) and BF
(PROFINET BUS FAULT) indicate the PROFINET communication
status.
LEDs DS and DE
The dual colour LEDs DS (Device State) and DE (Device Error) indicate the
status of the module and the status of the system bus.
A detailed description of the LED displays for this module can be found in Section 3.1.2 "Signal status LEDs".