NORD Drivesystems BU0270 - Manual (Page 27)

3 Displays and diagnosis
BU 0270 GB Subject to technical amendments 27
The physical status of the field bus system (EtherCAT) is indicated by the L/A - LEDs, which are located
directly next to the M12 screw connectors on the front panel.
Displays of the EtherCAT bus connections
LED (green)
RUN
Significance
... Flickering = (0.1s cycle)
OFF No connection
Connection via EtherCAT cable not available
No 24V supply voltage to the module
ON Inactive
Connection via EtherCAT cable not available, but
no bus activity
Flickering Active
EtherCAT connected and active