Re: My stepper getting hotter

Luis,

You are wanting two opposite things; a cool motor and lots of speed.
You can't have both. Step motors are designed to run hot (85C) when
they are used with a power supply voltage needed to generate maximum
speed. That is why they have teflon wire insulation instead of vinyl.

Your motor probably has reached its maximum temperature in 45
minutes. If you can keep your hand on it for 10 seconds then it is
not too hot and is operating properly.

Mariss

--- In CAD_CAM_EDM_DRO@y..., "luisguillermo98" <luisguillermo98@y...>
wrote:

> they are 4 wire and I think I do not need to run them that fast so

I

> am wondering if there something to low the voltage.
>
>
> -- In CAD_CAM_EDM_DRO@y..., "mariss92705" <mariss92705@y...> wrote:
> > Luis,
> >
> > That is a good thing, it means the motor is putting out real

power.

> > It is not good if the motor case gets hotter than 85C.
> >
> > Is your motor a 6-wire or 8-wire motor? If it is and if you have
> more
> > speed than you need, re-wire your motor for full-winding operation
> > (for 6-wire motors) or series for an 8-wire motor.
> >
> > If you do, set the current to 2 Amps on the drive. The motor will
> be
> > much cooler but your maximum speed will 1/2 of what you get now.
> >
> > There is no easy way to reduce power supply voltage.
> >
> > Mariss
> >
> >
> >
> > --- In CAD_CAM_EDM_DRO@y..., "luisguillermo98"
> <luisguillermo98@y...>
> > wrote:
> > > Hi guys;
> > > Finally my geckos are running. My stepper almost fly without

lose

> > any
> > > step. but I notice that the steppers are getting hot after 45

min

> > and
> > > I am wondering if there is a way to reduce the voltage of my
> power
> > > supply. It is 65v 4am and I would like to reduce it to 48v. Is
> > there
> > > anything like a voltage reducer or some like that and keep the
> same
> > > amperes output (4am)?