LED display

K-Bus run (green)

A

K-Bus data transfer

ERR L1 (red)

B

Voltage between L1 and N less than 10 V (default^*)

*) For each channel the undervoltage threshold value can be modified with its register R36.

ERR L2 (red)

C

Voltage between L2 and N less than 10 V (default^*)

ERR L3 (red)

D

Voltage between L3 and N less than 10 V (default^*)