CAD CAM EDM DRO - Yahoo Group Archive

8 wire half or Serial ? ( was Speed - Parallel vs serial ( was Re: Motor

Posted by cadcamcenter
on 2002-09-04 17:07:47 UTC
--- In CAD_CAM_EDM_DRO@y..., "turbulatordude" <davemucha@j...> wrote:

> In my application, I am replacing the NEMA 23's with NEMA34's for
> physical constraints, but want to run the 8 wire 34's serial.

> > > finding the correct 2 pairs and series wiring would use half
> > > nameplate, and run half as fast. Like an end connected 6 wire.

> > > > In any case, I believe the way to approach this is
> > > >
> > > > 1. determine the paired wires with multimeter
> > > > 2. pick any 2 pairs, connect them to the driver.
> > > > 3. Test. If wrong pair motor will not turn, probably make
> noise,
> > > but
> > > > no harm done. (experts please correct if wrong)
> > > > 4. Make a note, pick another 2 pairs.
> > > > 5. At most, you need only 3 trials before you get the motor
> > > turning,
> > > > and at most 4 to get them turning correctly.

To connect in serie, perhaps add the following steps to the above:

6. Note which pair of pairs are A and A', B and B', (pair of pairs
which will miss when connected.

7. Note which sense motor will turn when, say A and B are connected,
plus the polarity of the wires when connected.

8. Note which sense motor will turn when A' and B are connected, plus
the polarity of the wires when connected.

9. Now you have an idea of where the "+" and "-" of coil A and A'

10. Repeat for, say B and A, and B' and A.

11. Join connect the, say, "+" to the "-" of A and A' and the "+"
and "-" of B and B'

There you are, 8 wires connected in series without knowing the color
code of the wires. Haven't done this before myself. Will appreciate
to get feedback on whether the scheme will work.

Thanks

Peter

Discussion Thread

Mike Snodgrass 2002-03-05 12:02:18 UTC Motor mariss92705 2002-03-05 17:36:17 UTC Re: Motor Gene 2002-07-13 19:24:04 UTC Motor mariss92705 2002-07-13 20:41:00 UTC Re: Motor turbulatordude 2002-09-03 07:02:55 UTC Speed - Parallel vs serial ( was Re: Motor Robert Campbell 2002-09-03 07:19:23 UTC Re: [CAD_CAM_EDM_DRO] Speed - Parallel vs serial ( was Re: Motor turbulatordude 2002-09-03 16:36:21 UTC Speed - Parallel vs serial ( was Re: Motor Bob Simon 2002-09-03 19:32:21 UTC Siemens drives in current mode Robert Campbell 2002-09-03 19:36:21 UTC Re: [CAD_CAM_EDM_DRO] Speed - Parallel vs serial ( was Re: Motor cadcamcenter 2002-09-03 21:41:06 UTC Speed - Parallel vs serial ( was Re: Motor cadcamcenter 2002-09-03 21:57:29 UTC Speed - Parallel vs serial ( was Re: Motor turbulatordude 2002-09-04 04:35:15 UTC 8 wire half or Serial ? ( was Speed - Parallel vs serial ( was Re: Motor mariss92705 2002-09-04 07:35:13 UTC 8 wire half or Serial ? ( was Speed - Parallel vs serial ( was Re: Motor turbulatordude 2002-09-04 11:01:43 UTC 8 wire half or Serial ? ( was Speed - Parallel vs serial ( was Re: Motor cadcamcenter 2002-09-04 17:07:47 UTC 8 wire half or Serial ? ( was Speed - Parallel vs serial ( was Re: Motor JJ 2002-09-04 17:35:24 UTC RE: [CAD_CAM_EDM_DRO] Speed - Parallel vs serial ( was Re: Motor cadcamcenter 2002-09-04 19:06:10 UTC Speed - Parallel vs serial ( was Re: Motor JJ 2002-09-05 04:12:04 UTC RE: [CAD_CAM_EDM_DRO] Speed - Parallel vs serial ( was Re: Motor turbulatordude 2002-09-05 04:25:36 UTC Speed - Parallel vs serial ( was Re: Motor