Re: [CAD_CAM_EDM_DRO] Re: All Windings Off setting, Camtronics 5A boards

Alan Marconett KM6VV wrote:

> Thanks Ray,
>
> I'm going to investigate any coil to contact paths with a meter, then
> try it out. Seems to work on 24v, and there were transformers and power
> supplies in the "box". Many actuator/indicators also, a meter should
> figure them out. Also four nice breakers, I haven't seen what current
> yet.
>
> There ARE three matching terminals for the L1,L2,L3. I'M not going to
> do 3-phase.
>
> Still wonder why they called on terminal N/C, and another N/O. There is
> continuity BETWEEN them if I actuate the contactor. The names would
> imply to me that there was a "common" pin somewhere, and NOT closure
> between the contacts.

N/C and N/O do not necessarily mean a double-throw contact set.
it is common on contactors to have some normally open contacts, and
some normally closed. (The N/C contacts can be used to force other
contactors to drop out, or to prevent others from closing, when this one
is engaged.)

Jon