Driving DC motor with equivalent AC

MaxHeadRoom

Joined Jul 18, 2013
28,617
I would still opt for obtaining a manual from Electro-Arc, they used to be good to deal with at one time.
They used to give all manuals/schematics.
The OP states the Bodine motor is 120vdc, Bodine make a wide range from 12v to 230vdc.
 

MisterBill2

Joined Jan 23, 2018
18,168
At full voltage and a reasonable load a motor will be running close to it's rated speed, which is probably way faster than the disintegrator can do it's thing. So some speed control will be needed. The actual speed range is not given and so I can't provide advice there. But I did recently run that winch on 12 volts while the tag on the motor said 120 VAC. Something is wrong there because it is a PMDC motor. This is a very custom winch for a very non-standard application.
 

MaxHeadRoom

Joined Jul 18, 2013
28,617
At full voltage and a reasonable load a motor will be running close to it's rated speed, which is probably way faster than the disintegrator can do it's thing.
So some speed control will be needed.
Hence the PCT board mounted right next to the motor!! ? ;)

Usually the motor control is not too exotic on these machines, not from the ones I have worked on. (It's been a while). :oops:
 

MisterBill2

Joined Jan 23, 2018
18,168
I am wondering if a triac light dimmer followed by a bridge rectifier would work. That is as simple as I can imagine it being.
The reversing switch would be after the bridge rectifier.
 
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