Re: Servo motor keeps running. (urgent help required)

I connected the Enc- on the Gecko to the encoder ground along with
the external supply ground, and it all went great, now I have my
motor running and can control it from Mach2.
Thanx for the input guys, Mariss you're the best.

Best regards,

Mina F.
--- In CAD_CAM_EDM_DRO@yahoogroups.com, "mina_aboulsaad"
<minaf@l...> wrote:

> Great Mariss, I'll give it a try and I'll keep you posted, hope it
> works.
>
> Mina F.
>
> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "Mariss Freimanis"
> <mariss92705@y...> wrote:
> > Encoder CHA ------------>G320 Phase A
> > Encoder CHB------------->G320 Phase B
> > Encoder +5V------------->Power supply +5V
> > Encoder GND------------->G320 ENC-
> > Encoder GND------------->Power supply GND
> > G320 ENC+----470 ohm---->G320 ENC-
> >
> > Mariss
> >
> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, "mina_aboulsaad"
> <minaf@l...>
> > wrote:
> > > Mariss,
> > >
> > > I did not connect the Encoder ground to the Gecko 320 Enc-, it
> went
> > > to the external supply -0VDC, while I connected a 670 ohm
> resistor
> > > from Enc- to Enc+ on the Gecko, should have I connected the
> encoder
> > > ground to the Gecko and only got the +5VDC line from the
> external
> > > power supply???
> > > I tried doing the test for the encoder mentioned in the G320
> > > installation notes, but the voltmeter kept reading 8.9 VDC,

and

> > > wouldn't change while rotating motor shaft.
> > >
> > > Please advise.
> > > --- In CAD_CAM_EDM_DRO@yahoogroups.com, "Mariss Freimanis"
> > > <mariss92705@y...> wrote:
> > > > You have encoder problems.
> > > >
> > > > 1) Did you connect your encoder ground to ENC- on the G320?
> > > > 2) Are you sure your encoder has +5V TTL outputs?
> > > > 3) Do you know for sure your encoder works?
> > > >
> > > > Mariss
> > > >
> > > > --- In CAD_CAM_EDM_DRO@yahoogroups.com, "Mina Aboul saad"
> > > > <minaf@l...> wrote:
> > > > > So I got the Campbell breakout board the Gecko 320, a demo
> > > version
> > > > of Mach2,
> > > > > new encoders which I attached to my servo motor, the
> encoders
> > > draw
> > > > 120 mA so
> > > > > I got them an external power supply DC 5V, did all the
> wiring,
> > > and
> > > > turned
> > > > > the 80V DC supply, but the motors keep running and does

not

> > stop.
> > > > > I'll explain the exact steps I did:
> > > > >
> > > > > - Connected ERR/RES (term 5) to Enc+ (term 7)
> > > > > - Connected phase A, and phase B of the encoder to the

Gecko.

> > > > > - Wired the +5VDC and the ground from external supply to

the

> > > > encoders.
> > > > > - Connected a 670 ohm resistor from term 6 to term 7 on

the

> > > Gecko.
> > > > > - Connected the step & dir and the +5VDC from breakout

board

> to
> > > > Gecko.
> > > > > - Connected the motor Arm+ and Arm-, and connected the 80
> VDC
> > > power
> > > > supply.
> > > > >
> > > > > I then turned Mach2, and configured X axis only, turned

the

> > > power
> > > > supply on,
> > > > > the motor began to move and did not stop, I then tried to
> jog
> > > the
> > > > axis from
> > > > > Mach2, I noticed that the motor breaks but the gecko fault
> lamp
> > > > turn on and
> > > > > then goes out repeatedly, same thing happened when jogging
> in
> > > the
> > > > opposite
> > > > > direction, the motor breaks and the Gecko faults

repeatedly

> but
> > > the
> > > > motor
> > > > > keeps turning in the opposite direction and won't stop.
> > > > >
> > > > > What could I be missing???
> > > > > I also noticed that the step lead on the breakout board is
> > > always
> > > > on for the
> > > > > x axis even when I do not press the jogging key, and the
> > > direction
> > > > lead is
> > > > > always on when jogging in one direction and goes off in

the

> > > other
> > > > direction,
> > > > > is this normal, or should the lead goes off after I

release

> the
> > > > jogging
> > > > > key???
> > > > > Do you think it's a problem with configuring Mach2, or is
> there
> > > > something in
> > > > > the wiring???
> > > > >
> > > > > Please help.
> > > > >
> > > > > Best regards,
> > > > >
> > > > > Mina F.