I use 5V relay 1 chanel to control spindle on/off with connection as follow:
relay --- AXBBE
GND 0V
VCC 5V
IN O2 port #1
The output relay go to spindle through contactor.
The 0V and 5V are the one in between O9 -O17 in port #1.
I use UCCNC 1.2117 and AXBBE. I have configure the software on AXBBE. M3 relay on output pin #2 port #1.
Then I tried to test the relay connection to turn ON spindle by typing in MDI : M3 and M5. There is nothing on spindle, it did not make spindle ON.
Before I can do it easily on my UC300ETH to turn on/off my plasma. Is there something need to configure ?