MW LDH-45A-700W power supply?

That unit is a current controller for lighting, rather than a voltage controller that could would as a simple speed control.

Using it on a motor would control torque rather than speed; eg. it would run to full speed at anything above a very low setting if unloaded, with the control input varying how easy it was to stop (stall).

ps. The diagram you show is for a voltage input; from near zero for off up to around 1.3V for maximum output.

Cheers,
Thanks for that, on my unit Analogue DIm and Dim are joined together, I guess that is flat out?

Tex260Z said:

Thanks for that, on my unit Analogue DIm and Dim are joined together, I guess that is flat out?

Click to expand...

I'd expect that to be zero input voltage, so completely shut off?

Ok, finally got around to checking it, results as shown.
I remember now we used it to test an LED street light luminaire back when, and there was actually the resistor shown between the two terminal wires. Testing shows it's not linear.

These drivers are used for LED dimming.Use a PWM based speed drive for linear spead control with high torque at low speeds.