High Voltage DC Motor Controller
JonnyMac
Posts: 9,104
Assisting a friend who needs to replace a custom motor controller with something off the shelf.
Motor: 180 VDC @ 3.8A
Motor: 180 VDC @ 3.8A
Comments
http://www.ebay.com/itm/Leeson-Electric-174307-00-90-Volt-DC-180-V-Dc-Motor-Control-115-230-VAC-Input-/252018846449
Just saw Duanes post
To get a reverse function you will need access to the field windings on the motor.
you would reverse the output of the armature OR field outputs from the above device through a switching arrangement switching would obviously be done at motor standstill.
I had a project some years ago that involved an invertor that only had armature outputs but there was a need for reversal, luckily the motor gave access to both field and armature windings in the junction box
so a simple bridge rectifier across the field winding forced the current to flow in the same direction
through the field winding when the device changed polarity to the armature giving motor reversal.
the motor was fairly big to drive a camera crane so I used four 80A stud diodes mounted on a piece of paxoline to make the bridge.
http://www.surpluscenter.com/Electric-Motors/DC-Motors/Motor-Speed-Controllers/90-180-VDC-SPEED-CONTROL-W-POT-11-2269.axd
They also have: $239.15
http://www.surpluscenter.com/Electric-Motors/DC-Motors/Motor-Speed-Controllers/90-180-VDC-NON-REV-PMDC-MOTOR-CONTROLLER-11-3304.axd
http://www.a-m-c.com/products/drives.html
It does.
Current device is brute force on/off in either direction, and old boards are dropping like flies. In an ideal world, the device in question would be serially controlled.
Jon needs 180 Volts, Saber will only do 30 VDC.