[whitewittock]

I have these stepper motors:

http://i50.tinypic.com/19l9jt.png

To wire as Series, do I simply connect -A to -C, and -B to -D?

Also what is the right current setting to use with my 24v 10amp power supply?
The board can be set to 25%, 50%, 70% and 100% It is the new version of the chinese red board.

new red board manual

Thanks

[RonaldoNZ]

Yes connect -A to -C, and -B to -D, correct.

Set T1on T2off for 1.8amp max, safe setting, supply current is irrelevant, the board limits it to what you set here.

At 6.8mh in series expect sluggish performance at 24V, and you can't go over 30V with that board or it will probably pop. Your motors will do much better at 36 or 48 volt in that configuration. Or 24V wired parallel and more current, 4.2A, which that board (or any of the tbh6560) cant provide. Sorry.

[whitewittock]

Yes connect -A to -C, and -B to -D, correct.

Set T1on T2off for 1.8amp max, safe setting, supply current is irrelevant, the board limits it to what you set here.

At 6.8mh in series expect sluggish performance at 24V, and you can't go over 30V with that board or it will probably pop. Your motors will do much better at 36 or 48 volt in that configuration. Or 24V wired parallel and more current, 4.2A, which that board (or any of the tbh6560) cant provide. Sorry.

Very helpful, thanks! Slow but with high torque may hopefully be tolerable, this is for an X2 mill with a small work envelope

[TST]

Hi there, my cnc plasma cutter turned to be can only cut for 15 seconds of time no matter what are the adjustment (Higher/lower speed, high/low current or arc amperage) or shape it cut. After arc off, the torch still running. Do you have any idea what happen? Is it the problem of the plasma or the THC?

Material to cut: 3mm mildsteel
THC setting: Arc Amperage=130 IHS time=45 Pierce Time= 10
Current: 45-50
Speed: 3000

[whitewittock]

Hi there, my cnc plasma cutter turned to be can only cut for 15 seconds of time

Mate... you're in the wrong thread :stickpoke

[whitewittock]

Works good on those settings, thanks RonaldoNZ.