Configuration of OUT_7 connector on Duet3-6HC

[Arplyu]

Hi, I'm having problems with configuration of OUT_7 connector. COuld anybody help me with that?

This is what I've tried:

1. M950 F0 C"out7" to configure the connector
2. M106 F0 S... - to enable/disable it. However, what I observe is that there is always 24V (VIN) on this connector, while I am expecting to see variable output between 0 and 24, as from a normal PWM-capable output.

What is wrong in my configuration? Thanks

[jay_s_uk]

@Arplyu how are you measuring the 24v? there is always power on the positive side of the connector. all the switching takes place on the negative side

[Arplyu]

@jay_s_uk I've connected oscilloscope to OUT_7, and what I see is continuous straight line at 24V

[Arplyu]

@jay_s_uk my bad, I'm lacking knowledge in electronics The easiest way was just to test with a real fan, which I have done now. Everything works as expected.