Re: Relay Module Optocoupler for controlling new CNC router outputs
You may have to reverse engineer the resistor used in the opto coupler, but as a general rule if the opto input is designed for 5 input, and you have 12v, then it may need a series resistor on each input, double the value that is there now, or look up the max diode current rating of the opto.
Also what is the nature of the BOB output?
Al.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.