The DC Drive product range can be used to control DC shunt and DC permanent magnet motors and offers a wider choice of variable speed DC drives than any other manufacturer.

The range has over 50 models with armature current ratings up to 850 Amps.

For higher armature currents (up to 3000 Amps) we can offer a Digital, DC-stack driver unit, Model: ER-PLXD, with external 2-Quadrant or 4-Quadrant thyristor stack.

Both the Analog and Digital, 1 and 4 Quadrant, variable speed drives (VSD) have an internal field controller and universal speed feedback inputs (pulse encoder, tacho and armature voltage).