RE: [CAD_CAM_EDM_DRO] Re: g320 won't move??

computer frame ground is not always connected to the 0V rail of the pc, and
can wobble around quite a bit. giving BIG problems when used as a reference.
signal ground on the parallel port should be taken from the signal ground
pins on the port.
Best wishes,
nig

-----Original Message-----
From: barker806 [mailto:barker1@...]
Sent: Thursday, April 03, 2003 10:15 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] Re: g320 won't move??


I have the common grounded to the frame of the computer. I have two
stepper drives onthe machine that are running off the computer. But I
will check the grounding

Thank you Ray

Brian

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Ray Henry <rehenry@u...>
wrote:

>
> Brian
>
> How are you getting the +5 volt "common" for the step and direction

signals

> and is that supply "grounded" to the shell of the parport or to any

of the

> ground pins on the parport connector?
>
> Ray
>
>
>
> >    From: "barker806" <barker1@m...>
> > Subject: g320 won't move??
> >
> > I have a g320 hooked up and the motor is not moving when I start

it

> > up. and when I moved the motor shaft the drive "pushes back". so

that

> > tells me that everything as far as the drive goes is working

well. I

> > have EMC hooked up to the drive and the motor will not turn?? I

have

> > checked to output from the computer with a logic probe and the
> > computer is sending the step and dir. There is one thing that I

don't

> > know and that is the jumper settings on the drive. There are

places

> > for a jumper on the drive but the drive didn't come with any

jumpers.

> >
> > Thank you all for your help
> > Brian

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