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General Mach Discussion / After all my searching for answers, steppers still won't go...

« on: April 23, 2010, 04:32:00 PM »

Ok, I have mach 3 under windows XP.

KL-DB25 Breakout Board from keling - http://www.kelinginc.net/BreakoutBoards.html

CW250 driver - http://www.mpja.com/prodinfo.asp?number=17452+MS

Shieded cable connected from pin 2 on breakout board to cp+ on driver
Shieded cable connected from pin 3 on breakout board to cw+ on driver
Shieded cable connected from pin 18 on breakout board to cp- on driver
Shieded cable connected from pin 18 on breakout board to cw- on driver

Automationdirect 276 oz-in four wire stepper motor wired to A+ A- B+ B-   checked a hundred times to make sure I wired this right

37 volt 12 amp power supply connected to vcc+ and gnd

When I turn on the power supply the stepper "locks" and the lights come on the cw250

I plug 5v into the breakout board.  Light comes on.

Mach3 is set to lpt1  X axis step pin 2, Dir pin 3.  Low active on, set to port 1

When I try to jog the x axis nothing happens.

I put a meter in the breakout board and get voltage activity between pin 3 and ground (pin 18) when trying to jog.  I've used this computer and cable to run my hot wire foam cutter with no problems.  This is the first time I've used the cw250 and it's hard to find much information on it.  Anyone have any experience?

Any help would be very appreciated.

Thanks