![background image](http://html1.mh-extra.com/html/beckhoff/cx8080/cx8080_documentation_2719304058.webp)
Error handling and diagnosis
LED power supply terminal
Operation with K-bus terminals Operation with E-bus terminals
Display LED
Description
Meaning
1 Us 24 V (top left, 1st row)
CX80xx supply voltage
connected to -24 V
2 Up 24 V (top right, 1st row)
Power contacts supply voltage
connected to -24 V
3 L/A (left center, 2nd row)
EtherCAT LED
flashing green: EtherCAT
communication active
connected to E-bus / no data traffic
not connected to E-bus
4 K-BUS RUN (right center, 2nd
row)
K-bus LED RUN
Lights up green: K-bus running,
everything OK
6 K-BUS ERR (bottom right, 3rd
row)
K-bus LED ERR
Lights up red: K-bus error - see K-
bus error code
CX8080
58
Version: 1.0.0