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

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.