CAD CAM EDM DRO - Yahoo Group Archive

Re: Running a BOSS on single phase

Posted by cnc_4_me
on 2005-04-20 21:00:55 UTC
> The BOSS stepper drives do NOT use a DC power supply. They use
> a magnetic amplifier in the AC feed to each stepper axis' power
supply.
> The idea is the DC supply sags to about 18 V or so when the motors
are
> standing still, as the reactor/amplifier is driven into saturation
by a
> control
> winding. When the axis needs to move, the control winding is
turned
> off, and
> the DC supply rises to, I think, about 54 V DC.
>
> So, you can't just plug a standard DC raw supply in there without
> keeping the
> magnetic amplifier working.
>
> Jon


Can anyone confirm the 54 volt limit on a boss stepper system? If
the modern 70 volt gecko PWM drive has a problem driving the stepper
to full power, the old boss stepper system must have been pathetic.


Wally




--- In CAD_CAM_EDM_DRO@yahoogroups.com, Jon Elson <elson@p...> wrote:
> Doug Fortune wrote:
>
> >Scott wrote:
> > >I am eventually going to convert to a modern control
> > >Big problem, I think, is the stepper drives get power from a
> > >3 phase transformer.
> >
> >The spindle motor (3 phase) and stepper/servo drives (DC)
> >don't have to be powered from the same source. Use 3phase
> >(or 2phase to 3 phase 220V phase converter for the spindle)
> >and 120VAC to power the stepper/servo drives (through a DC
> >supply, of course).
> >
> >However I'm not sure thats the answer you are looking for, if you
> >mean to use all of the existing BOSS electronics....
> >
> >
> The BOSS stepper drives do NOT use a DC power supply. They use
> a magnetic amplifier in the AC feed to each stepper axis' power
supply.
> The idea is the DC supply sags to about 18 V or so when the motors
are
> standing still, as the reactor/amplifier is driven into saturation
by a
> control
> winding. When the axis needs to move, the control winding is
turned
> off, and
> the DC supply rises to, I think, about 54 V DC.
>
> So, you can't just plug a standard DC raw supply in there without
> keeping the
> magnetic amplifier working.
>
> Jon

Discussion Thread

Polaraligned 2005-04-18 13:55:10 UTC Running a BOSS on single phase Doug Fortune 2005-04-18 15:20:18 UTC Re: Running a BOSS on single phase Jon Elson 2005-04-18 19:39:19 UTC Re: [CAD_CAM_EDM_DRO] Running a BOSS on single phase Jon Elson 2005-04-18 19:42:35 UTC Re: [CAD_CAM_EDM_DRO] Re: Running a BOSS on single phase JanRwl@A... 2005-04-18 21:25:50 UTC Re: [CAD_CAM_EDM_DRO] Running a BOSS on single phase Polaraligned 2005-04-19 02:52:37 UTC Re: Running a BOSS on single phase Polaraligned 2005-04-19 04:10:34 UTC Re: Running a BOSS on single phase Jon Elson 2005-04-19 09:07:17 UTC Re: [CAD_CAM_EDM_DRO] Re: Running a BOSS on single phase Jon Elson 2005-04-19 09:09:55 UTC Re: [CAD_CAM_EDM_DRO] Re: Running a BOSS on single phase turbulatordude 2005-04-19 09:55:02 UTC Re: Running a BOSS on single phase Polaraligned 2005-04-19 11:41:23 UTC Re: Running a BOSS on single phase cnc002@a... 2005-04-19 12:58:00 UTC Re: [CAD_CAM_EDM_DRO] Re: Running a BOSS on single phase ballendo 2005-04-19 15:42:30 UTC Re: Running a BOSS on single phase cnc002@a... 2005-04-20 18:05:33 UTC Re: [CAD_CAM_EDM_DRO] Re: Running a BOSS on single phase cnc_4_me 2005-04-20 21:00:55 UTC Re: Running a BOSS on single phase Doug Fortune 2005-04-20 22:42:25 UTC Haas mini "Office Lathe" and mini "Office Mill" Les Newell 2005-04-20 23:38:13 UTC Re: [CAD_CAM_EDM_DRO] Re: Running a BOSS on single phase Polaraligned 2005-04-21 04:10:22 UTC Re: Running a BOSS on single phase washcomp 2005-04-21 04:21:58 UTC Re: Running a BOSS on single phase Les Newell 2005-04-21 06:51:26 UTC Re: [CAD_CAM_EDM_DRO] Re: Running a BOSS on single phase Doug Fortune 2005-04-21 08:29:35 UTC Re: Running a BOSS on single phase vavaroutsos 2005-04-21 15:39:39 UTC Re: Running a BOSS on single phase Polaraligned 2005-04-22 04:25:55 UTC Anyone Convert BOSS to servo's? Les Newell 2005-04-22 05:19:44 UTC Re: [CAD_CAM_EDM_DRO] Anyone Convert BOSS to servo's? Polaraligned 2005-04-22 15:56:47 UTC Re: Anyone Convert BOSS to servo's? Les Newell 2005-04-25 01:19:45 UTC Re: [CAD_CAM_EDM_DRO] Re: Anyone Convert BOSS to servo's? Polaraligned 2005-04-26 03:40:52 UTC BOSS to servo's and reduction R Rogers 2005-04-26 06:16:18 UTC Re: [CAD_CAM_EDM_DRO] BOSS to servo's and reduction Polaraligned 2005-04-26 17:59:51 UTC Re: BOSS to servo's and reduction R Rogers 2005-04-26 19:00:49 UTC Re: [CAD_CAM_EDM_DRO] Re: BOSS to servo's and reduction Les Newell 2005-04-27 02:05:35 UTC Re: [CAD_CAM_EDM_DRO] Re: BOSS to servo's and reduction Polaraligned 2005-04-27 05:47:59 UTC Re: BOSS to servo's and reduction R Rogers 2005-04-27 06:54:21 UTC Re: [CAD_CAM_EDM_DRO] Re: BOSS to servo's and reduction Polaraligned 2005-04-27 10:46:14 UTC Re: BOSS to servo's and reduction