Re: [CAD_CAM_EDM_DRO] Question on power supply

Jim wrote:

> I bought a 24V 10A power supply at an electronic surplus it is a
> MPS3000A slo-syn from Superior Electric Company. My
> question is that the instructions state that it is a ferroresonat
> supply and recommends a minimum load of l amp to be applied
> to the output at all times.
>
> I have the Camtromics 2A driver and to test the board I need to
> hook up the power supply but without steppers. How can I
> satisify the one amp minimum for the power supply until I am
> through testing and have all stepper motors in place.

A 24 Ohm 25 Watt resistor across the power supply output terminals
will draw 1 Amp. You can go lower in resistance value, it will just
draw more current. Wattage is (V^2)/R. You will end up with a
50 W resistor below 24 Ohm. A 25 Ohm value might be easier to
find, it draws awfully close to 1 Amp.

Jon