KL6831, KL6841 - Diagnostic LEDs
The LEDs indicate the operating state of the KL6831 and KL6841.

Meaning of the LED displays
LED | Color | State and significance | ||
---|---|---|---|---|
On | Off | Flashes | ||
Run-LED | green | K-bus communication is OK | No K-bus communication | K-bus communication |
Send LED | green | SMI telegrams are sent | No sending | Sending active |
+ 24 V Power LED | green | Power supply OK | No 24 V power supply | - |
Input LED1 | green | DI 1 is switched on or was active and has not yet been acknowledged. | DI 1 is switched off | - |
Error LED | red | Hardware error | No error | - |
Receive LED | green | SMI telegrams are received | No reception | Reception active |
SMI Power LED | green | SMI power supply OK | SMI power supply missing | - |
Input LED2 | green | DI 2 is switched on or was active and has not yet been acknowledged. | DI 2 is switched off | - |