This is because any power transformer is almost certainly designed for 60Hz
or possibly 50 Hz in Europe. If the VFD created a different frequency the
transformer would not work well. Most power transformers are not
optimized for a wide frequency bandwidth.That said, one could design
such a
On Fri, 18 Jun 2021 at 03:47, Gregg Eshelman via Emc-users <
emc-users@lists.sourceforge.net> wrote:
> Everything I've read on VFDs says do not feed them from a transformer.
But isn't every VFD on the planet fed by a transformer?
Many VMC and lathes have a 1:1 isolating transformer at the
Everything I've read on VFDs says do not feed them from a transformer. Nor can
you put a transformer between the VFD and the motor. Most of them say *nothing*
should be between the VFD and the motor, direct connection only. The one on my
1943 Monarch 12CK lathe recommends a noise filter on the
On Thursday 17 June 2021 12:17:51 John Dammeyer wrote:
> > From: andy pugh [mailto:bodge...@gmail.com]
> >
> > On Wed, 16 Jun 2021 at 13:37, suraj kumar
wrote:
> > > I see, I have to set the maximum velocity and acceleration in ini
> > > file at more than one place, like in [DISPLAY], [TRAJ],
For a good KM >synergy https://symless.com/
For remote desktop mobaxterm https://mobaxterm.mobatek.net/
Have fun.
N.
-Original Message-
From: John Dammeyer
Sent: Thursday, June 17, 2021 12:31 PM
To: Enhanced Machine Controller (EMC)
Subject: [Emc-users]
I've heard both positive and negative comments about this.
Is it possible to use the Pi4 with an Ethernet board like the 7i92 and nothing
connected for keyboard/mouse/monitor and use the WiFi connection to another
computer for display/keyboard/mouse?
Or is the screen updating intensive
As said, you could use m4 to do this
ifdef ('foo',
"hall code here to do foo-stuff",
"hal dode here to not non-foo-stuff",
)
You can use m4 to add ifdef-like processing to any kind of file.
So a more concrete example would be to make an dot.m4 file that reads as
follows. You can use #
On Thu, 17 Jun 2021, John Dammeyer wrote:
Date: Thu, 17 Jun 2021 09:17:51 -0700
From: John Dammeyer
Reply-To: "Enhanced Machine Controller (EMC)"
To: "'Enhanced Machine Controller (EMC)'"
Subject: Re: [Emc-users] Setting of maximum velocity and acceleration in ini
file
From: andy
> From: andy pugh [mailto:bodge...@gmail.com]
> On Wed, 16 Jun 2021 at 13:37, suraj kumar wrote:
>
> > I see, I have to set the maximum velocity and acceleration in ini file at
> > more than one place, like in [DISPLAY], [TRAJ], [AXIS_X], [JOINT_0]. I can
> > also see in [JOINT_0], I need to set
I've actually done this. I took a cheap 12 volt "wall wort" power supply
and crushed the plastic case in a vice and salvaged the little 1.0 amp 12
volt transformer.Then I place 120 volts AC on the 12 volt side and no I
did not get anything like 1,200 volts out. It was more like 300 volts
There are custom transformer shops that build them to your specifications.
Also, there are places that sell the parts, the stamped iron plates, or
C-cores and plastic bobbins. Yes, there are hobbyists who make
transformers and companies who supply the parts. DIY'ers who want to save
money
look at https://www.factorymation.com
dale On Thursday, June 17, 2021, 05:31:57 AM EDT, Peter Blodow
wrote:
Am 17.06.2021 um 07:20 schrieb Roland Jollivet:
> ...
> I don't know if you can use a 110V:24V transformer in reverse, or whether
> you'll cook it. Worth a try...
>
> Roland
On Wed, 16 Jun 2021 at 13:37, suraj kumar wrote:
> I see, I have to set the maximum velocity and acceleration in ini file at
> more than one place, like in [DISPLAY], [TRAJ], [AXIS_X], [JOINT_0]. I can
> also see in [JOINT_0], I need to set two times, one for Max velocity and
> acceleration and
Am 17.06.2021 um 07:20 schrieb Roland Jollivet:
...
I don't know if you can use a 110V:24V transformer in reverse, or whether
you'll cook it. Worth a try...
Roland
NO!!!
Peter
___
Emc-users mailing list
On Thursday 17 June 2021 01:20:51 Roland Jollivet wrote:
> If you have some transformers lying around you could stack the
> secondaries to get 440V
> They don't need to be step-up, just sum the secondaries. You need to
> have them all in phase obviously.
>
> Then use a small, single phase 440V
Getting late here. I'll check it out tomorrow.
I'm pleased to say that I was able to modify the pyvcp_options.hal to use the
spindle-fb-rpm-abs-filter => pyvcp.spindle-speed
from the hal file and now when I spin the encoder on the bench here by hand I
get RPM displayed on the AXIS panel.
I
> On 17 Jun 2021, at 3:51 pm, John Dammeyer wrote:
>
> Thanks Phil,
> I just broke it and lost pulses to the spindle. Went back and commented in
> the other direction and I have my spindle back.
>
> Who would have thought this was so hard…
I didn't think it was…
Did you look at the sim
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