On Wednesday 20 May 2020 00:03:37 John Dammeyer wrote:
> > -Original Message-
> > From: Gene Heskett [mailto:ghesk...@shentel.net]
> > Sent: May-19-20 1:50 PM
> > To: emc-users@lists.sourceforge.net
> > Subject: Re: [Emc-users] hypothetical, maybe not, switching psu
> > question
> >
> >
On Tuesday 19 May 2020 20:58:45 Dan Henderson wrote:
> I have encoder.0.position-scale set to 400 and I have all three phases
> A,B,Z enabled as inputs. Me thinks it might have to do with
> pwmgen.0.scale or the pwmgen.0.offset. Not entirely sure what those do
> yet. I believe scale assumes you
> -Original Message-
> From: Gene Heskett [mailto:ghesk...@shentel.net]
> Sent: May-19-20 1:50 PM
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] hypothetical, maybe not, switching psu question
>
> On Tuesday 19 May 2020 15:44:51 John Dammeyer wrote:
>
> > Hi Gene,
>
On 5/19/20 5:09 PM, andy pugh wrote:
On Tue, 19 May 2020 at 21:35, Todd Zuercher wrote:
Are you sure your 40 amp SSR was what it claimed it was. I recall someone on
this list telling a story about how he opened up some inexpensive SSRs to find
woefully under spec-ed internal components
I have encoder.0.position-scale set to 400 and I have all three phases
A,B,Z enabled as inputs. Me thinks it might have to do with pwmgen.0.scale
or the pwmgen.0.offset. Not entirely sure what those do yet. I believe
scale assumes you know the max rpm the motor will run and sets the
increments
On Wed, 20 May 2020 at 00:36, Gene Heskett wrote:
> > I had some 40A SSRs with a 15A device inside that blew at 2A.
>
> Do you recall the brand label?
The label was "Fotek" But I doubt that they were by Fotek.
--
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for
On Tuesday 19 May 2020 18:16:49 Dan Henderson wrote:
> The CUI ATM 103. The PPR is set at 100 both on the device and in HAL.
> I’m not using scale mode since I needed Quadrature in order to detect
> CCW for rigid tapping.
You should be able to set encoder scale at 400 w/o effecting the
On Tuesday 19 May 2020 18:09:37 andy pugh wrote:
> On Tue, 19 May 2020 at 21:35, Todd Zuercher
wrote:
> > Are you sure your 40 amp SSR was what it claimed it was. I recall
> > someone on this list telling a story about how he opened up some
> > inexpensive SSRs to find woefully under spec-ed
The CUI ATM 103. The PPR is set at 100 both on the device and in HAL. I’m
not using scale mode since I needed Quadrature in order to detect CCW for
rigid tapping.
On Tue, May 19, 2020 at 5:03 PM Gene Heskett wrote:
> On Tuesday 19 May 2020 17:28:40 Dan Henderson wrote:
>
> > Thanks Gene. I
On Tue, 19 May 2020 at 21:35, Todd Zuercher wrote:
>
> Are you sure your 40 amp SSR was what it claimed it was. I recall someone
> on this list telling a story about how he opened up some inexpensive SSRs to
> find woefully under spec-ed internal components (like 1/4th the units rated
>
On Tuesday 19 May 2020 17:28:40 Dan Henderson wrote:
> Thanks Gene. I too dabbled in Amiga ARexx back in the day. I was /
> still am a Commodore aficionado. To this day, I have working Amiga,
> C-128, and C64 hardware. I prefer Assembly Language over BASIC for
> obvious reasons with speed being
Thanks Gene. I too dabbled in Amiga ARexx back in the day. I was / still
am a Commodore aficionado. To this day, I have working Amiga, C-128, and
C64 hardware. I prefer Assembly Language over BASIC for obvious reasons
with speed being foremost among them. But I digress...
I ended up building a
On Tuesday 19 May 2020 14:01:23 Todd Zuercher wrote:
> Are you sure your 40 amp SSR was what it claimed it was. I recall
> someone on this list telling a story about how he opened up some
> inexpensive SSRs to find woefully under spec-ed internal components
> (like 1/4th the units rated
On Tuesday 19 May 2020 16:15:31 Dan Henderson wrote:
> Update for everyone. I now have two working relays controlling the
> operation of the spindle motor via BOB and Parallel Port. I've also
> now successfully tested the G33.1 Rigid Tapping cycle with this setup.
>
> Relay #1 is used to power
On Tuesday 19 May 2020 15:44:51 John Dammeyer wrote:
> Hi Gene,
> Since I'm running DC Servos I wanted the ability to clamp the back emf
> from a decelerating motor. I built a small circuit that sensed both
> high voltage and AC power. It puts a resistor across the DC rail to
> pull it down
Are you sure your 40 amp SSR was what it claimed it was. I recall someone on
this list telling a story about how he opened up some inexpensive SSRs to find
woefully under spec-ed internal components (like 1/4th the units rated
capacity).
Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street
On Tuesday 19 May 2020 14:39:28 Chris Albertson wrote:
> The usual method to limit inrush that is used in almost all
> electronic devices is to place an NTC thermistor in series with the AC
> mains supply. If you take apart any TV, stereo amp, or PC power
> supply that was built this century you
Update for everyone. I now have two working relays controlling the
operation of the spindle motor via BOB and Parallel Port. I've also now
successfully tested the G33.1 Rigid Tapping cycle with this setup.
Relay #1 is used to power on/off the motor controller board (MC2100). (M5
or S0 triggers
Hi Gene,
Since I'm running DC Servos I wanted the ability to clamp the back emf from a
decelerating motor. I built a small circuit that sensed both high voltage and
AC power. It puts a resistor across the DC rail to pull it down and the
resistor is connected with both a relay and a FET in
The usual method to limit inrush that is used in almost all
electronic devices is to place an NTC thermistor in series with the AC
mains supply. If you take apart any TV, stereo amp, or PC power supply
that was built this century you find them inside.
They are really easy to use. They act just
Greetings all;
Having destroyed one 40 amp SSR by turning on the switching psu;s for the
two running the X motors and the builtin supply of the even bigger
drive running the Z axis, already, I am now contemplating how to do a
soft start to limit the initial in-rush of charging up those 3 power
On 05/18/2020 10:40 PM, Thomas J Powderly wrote:
I think timestamping was a benefit, esp for PPMC.
Some PPMC devices can use time stamps to estimate encoder
velocity. I don't think that has anything to
do with Ethernet packets.
Jon
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