Re: Bridgeport 440 volts to 220 volts.

Ok maybe I have this figured out now. Perhaps the switch they are
refering to is the "Main" switch on the larger power box.
My schematics do show heaters in the large cabinet.
I was going off of some information from a source that does not
know Bridgeports all that well. He was thinking of the ON/OFF switch
boxes that do have little coil heaters in them.
I have posted a few pictures. One shows the mill the other is a
picture of the page of the manual that confused me.

Thanks

Gary

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Jon Elson <elson@p...> wrote:
>
>
> cncgramps wrote:
>
> >petev,
> >
> >It is a BOSS4 and my manual says the heaters are in the switch
box
> >that is up front. The one that changes motor direction for High
and
> >Low and has the E-Stop button.
> >
> This HAS to be wrong. The motor current does not go through
> the pendant. The wires there only carry signal voltages. The
> heaters just have to be in the came cabinet as the motor
contactors.
> Whether thay are actually a part of the contactor or a separate
unit
> near one of them is up to the designer, but it would be INSANE
> (and probably an electrical code violation) to put them in the
> pendant.
>
> Jon