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Author Topic: Mach3 relay control  (Read 1139 times)

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Mach3 relay control
« on: February 04, 2025, 06:59:56 AM »
Hello,

Mach3 MK4-V control in version 5.8, I want to connect the coolant control to OUTPUT3 - I use the built-in button. The configuration in Port&Pins is probably correct - after starting the milling machine OUTPUT3 (connected and configured to Port 1 Pin 2) in the diagnostics section the diode does not light up - there is no voltage between OUTPUT3 and 24V Power OUT, after starting OUTPUT3 the diode in diagnostics lights up, there is voltage between OUTPUT3 and 24V Power OUT - the relay works - the problem occurs when I want to turn off the relay, the diode at OUTPUT3 goes out, but the voltage is still there. Where could the problem be?

Relay connections - OUTPUT3 to -, 24V Power OUT to +