View Full Version : DC motor control

24-12-2014, 01:15 PM
I have a 1 1/2HP DC motor on a lathe that has a manual veriac controller I would like to change to electronic speed control has anyone done anything like this and can point me in the right direction where to obtain one please.


24-12-2014, 02:53 PM
There's some DC drives here; https://www.inverterdrive.com/group/DC-Thyristor-Drives/?filter=Input|230V%2f240Vac+1ph
but you would need to find out if your motor is compatible.
Or maybe you could replace it with an AC motor and inverter drive.

24-12-2014, 03:46 PM
Thanks Eddy,

The motor and controller was new 2000 - 2001 so don't want to change the motor just the controller box as it's big at 350 mm square, the supply to NECO box is 240-250Vac and I think the field supply to motor was 170 - 180Vdc


24-12-2014, 04:10 PM
These Parker drives are quite good, this one looks like a candidate, but needs confirmed first.