MD10C heating up in minutes after powering it up.

[tangapan]

Yesterday I bought a Cytron MD10C to connect it to a DC pump (24V, approximately 1 A) with an adapter supplying the board 24V 2.5 A. I left the MD10C on for a few minutes with and hardly tured on the motor. The driver quickly heated up even though it was idle and pump was not pulling any current.

I want the board to run for a couple of hours at a stretch. Im now thinking of adding a relay that will turn on the driver only when I want to power on the motor. But is this expected behaviour? I was under the impression that the board shouldnt heatup, especially considering Im supplying it a fraction of the ampere it is rated to handle?

[ober]

It’s expected as the heat is from the linear voltage regulator especially when using 24V. It should not have any problem to run it for a few hours in a stretch.

[tangapan]

Super! Thank you very much..