Re: INCONSISTENT STEPPING - WIERD SITUATION

Jeff,

All things considered, it's best to use the PC +5VDC. A lot of "wall
warts" say they are +5VDC but are not even close.

Put a DC voltmeter on PC ground and DIRECTION. Toggle the direction
output and see if you have 0V for a logic "0" and +5VDC for a
logic "1".

Mariss

--- In CAD_CAM_EDM_DRO@y..., "ja_erickson" <ja_erickson@y...> wrote:
> hey Mariss,
>
> good day,i purchased a seperate p.c. power supply to power the
drive
> and i'm using one of the 5 volt supplies,is this o.k.? there is
some
> more information that i could lend. i have used the geckos in the
1x
> and 2x modes and it didnt help the situation. i have also tried to
> change the acceleration rates within master5 and it did have some
> effects, but none of them "cured" the problem. there are times when
> the motor does move smoothly but it is intermittent and it seems to
> do this only after skipping, and growling a bit.its really strange
to
> me why the motor works flawlwssly in one direction but not the
other.
> is there a potential for a problem with the nema 42 size triple
stack
> motor and the drive? and if so is there a way that i can verify
that.
> i cant thank you enough for your patients and considerations, as i
> couldn't have gotten this far without your help.
>
> jeff from cleveland
>
>
>
>
>
> --- In CAD_CAM_EDM_DRO@y..., "mariss92705" <mariss92705@y...> wrote:
> > Jeff,
> >
> > Check your DIRECTION signal. My bet is it does not meet TTL
> > requirements when it has to carry opto LED current.
> >
> > Try running things with the "common +5VDC" input jumper option.
Get
> > your +5VDC from pin 1 on your game port. Your LPT1 port probably
> > can't source the required 16 mA. It will sink 16 mA though.
> >
> > Mariss
> >
> > --- In CAD_CAM_EDM_DRO@y..., "ja_erickson" <ja_erickson@y...>
wrote:
> > > hey all,
> > >
> > > ive just wired up one drive on a bridgeport series 1 with
> > > size 42 steppers using gecko 210 drives. the system is being
> driven
> > > by master5 software and is exibiting some strange behavior.
> > > when im jogging the motor in one direction it functions smooth
as
> > silk
> > > but when i attempt to jog the motorin the opposite
direction,the
> > > motor misses steps, stall and growls.any suggestions
> > >
> > > jeff