Need help connecting air-pump to Duet 3

  • I'm building a printer with berd-air cooling. It's a little confusing in the Duet3 documentation what connection to use to connect DC Air-pump.
    My supply to Duet is 24v
    I need to connect 0.75A 12v or a 1.75A 24v pump (one or the other) and still be able to control the speed.

    Please help.

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