I have my own personal pad mounted transformer, all underground wire
back in the woods. My memory might be wrong about the voltage... can't
check it now because I can't get the 5i25 to come on line.
JT
On 12/25/2015 4:48 PM, Bertho Stultiens wrote:
> On 12/25/2015 11:25 PM, John Thornton wrote:
On 12/25/2015 11:25 PM, John Thornton wrote:
> There is no transformer in there...
Ah, sorry about that...
The second variable should then be considered, mains tolerance.
The usual tolerance of the mains line is between +20% and -30%. If that
seems large, it is. If you ask the company what you ma
There is no transformer in there...
On 12/25/2015 4:19 PM, Bertho Stultiens wrote:
> On 12/25/2015 11:05 PM, Gene Heskett wrote:
>>> The bridge rectifier is connected to 120v so no transformer is
>>> there... not sure how it gets 190vdc out of 120vac but it does. Now to
>>> find some fuses for it.
On 12/25/2015 11:05 PM, Gene Heskett wrote:
>> The bridge rectifier is connected to 120v so no transformer is
>> there... not sure how it gets 190vdc out of 120vac but it does. Now to
>> find some fuses for it... may be Tuesday before I can use that.
> That is a puzzle John, the best DC I can get o
On Friday 25 December 2015 13:59:32 John Thornton wrote:
> I just realized that putting the control transformer in and I would
> not need to pull a neutral for my 120v side! Now to get off $40 for
> fuses for the dang thing.
>
> JT
Correct, you can use either side as neutral, or even, if it has a
On Friday 25 December 2015 13:48:52 John Thornton wrote:
> The bridge rectifier is connected to 120v so no transformer is
> there... not sure how it gets 190vdc out of 120vac but it does. Now to
> find some fuses for it... may be Tuesday before I can use that.
>
> JT
That is a puzzle John, the be
e Controller (EMC)
> Subject: Re: [Emc-users] Grounding Issues
>
>
> The bridge rectifier is connected to 120v so no transformer is there...
> not sure how it gets 190vdc out of 120vac but it does. Now to find some
> fuses for it... may be Tuesday before I can use that.
>
On 12/25/2015 12:59 PM, John Thornton wrote:
> I just realized that putting the control transformer in and I would not
> need to pull a neutral for my 120v side! Now to get off $40 for fuses
> for the dang thing.
>
> JT
>
That is the main reason in industry, fewer wires and mains isolation.
I cut
I just realized that putting the control transformer in and I would not
need to pull a neutral for my 120v side! Now to get off $40 for fuses
for the dang thing.
JT
On 12/25/2015 12:45 PM, John Thornton wrote:
> Just looking through my supplies and I find a Hevi-Duty 240v -120v
> 0.95KVA transf
The bridge rectifier is connected to 120v so no transformer is there...
not sure how it gets 190vdc out of 120vac but it does. Now to find some
fuses for it... may be Tuesday before I can use that.
JT
On 12/25/2015 12:34 PM, Dave Cole wrote:
> On 12/25/2015 5:59 AM, John Thornton wrote:
>> I wo
Just looking through my supplies and I find a Hevi-Duty 240v -120v
0.95KVA transformer... gotta make room for it in the VFD cabinet and get
rid if the 120v plug in.
JT
On 12/25/2015 10:51 AM, Ed wrote:
> On 12/25/2015 04:59 AM, John Thornton wrote:
>> Dave, the AD filter came in yesterday and I
On 12/25/2015 5:59 AM, John Thornton wrote:
> I wonder if I should put that filter at the beginning of the AC
> circuit or just ahead of the bridge rectifier?
I think I would put it prior to the transformer that feeds the bridge
rectifier, if that makes sense.
That AD VFDs tend to broadcast seri
I run my pc and monitor off the 240. Almost all are universal input
nowadays (some pcs require a switch) and have isolated supplies.
On Dec 25, 2015 12:18 PM, "Ed" wrote:
> On my CHNC I have a 500VA control transformer to drop 240V to 120V for
> the computer and the monitor. That way I do not hav
On 12/25/2015 04:59 AM, John Thornton wrote:
> Dave, the AD filter came in yesterday and I'm fitting it to the machine
> now. I had to relocate the VFD to the side of the cabinet due to the
> additional height. I also ordered a smaller filter for the DC power
> supply. I wonder if I should put that
Dave, the AD filter came in yesterday and I'm fitting it to the machine
now. I had to relocate the VFD to the side of the cabinet due to the
additional height. I also ordered a smaller filter for the DC power
supply. I wonder if I should put that filter at the beginning of the AC
circuit or jus
John,
Do you have an AC filter on the power lines feeding the GS2 drive?
If not, go to Automation Direct and buy the filter they specify for that
drive. You will not regret the purchase.
Don't buy a cheap filter. The ones that AD has now are good filters.
I've had similar issues.
Dave
nstable over the edge.
> John Dammeyer
>
>
>> -Original Message-
>> From: John Thornton [mailto:j...@gnipsel.com]
>> Sent: December-21-15 3:15 AM
>> To: Enhanced Machine Controller (EMC)
>> Subject: Re: [Emc-users] Grounding Issues
>>
>>
&g
The addition of the VFD might just put an system that is on the edge of
being unstable over the edge.
John Dammeyer
> -Original Message-
> From: John Thornton [mailto:j...@gnipsel.com]
> Sent: December-21-15 3:15 AM
> To: Enhanced Machine Controller (EMC)
> Subject:
Another update, Automation Direct has an EMI input filter designed for
that drive that mounts under it so that is on order as well as a ferrite
bracelet... Peter said it was a bracelet not a bead. At least knowing
it's the VFD and not an unknown issue is a big relief for me. In any
case I have
On 21 December 2015 at 14:49, Bertho Stultiens wrote:
[BS1363 Plugs]
>> [1] Apart from being very large, very ugly, and really bad to stand on
>> in bare feet.
>
> Well, large, yes; ugly, yes; but bare feet?
They seem well designed lie on the ground with the pins poking upwards.
This tends to m
On 12/21/2015 03:34 PM, andy pugh wrote:
>> The "wisdom" people said in that case was: "put the plug in reversed".
> Not possible with the infinitely superior[1] BS 1363 plugs and sockets.
Agreed.
However, how many people have been able to connect the wires wrong? (not
counting the sealed cables)
On 21 December 2015 at 14:26, Bertho Stultiens wrote:
>
> The "wisdom" people said in that case was: "put the plug in reversed".
Not possible with the infinitely superior[1] BS 1363 plugs and sockets.
[1] Apart from being very large, very ugly, and really bad to stand on
in bare feet.
--
atp
I
On 12/21/2015 02:48 PM, andy pugh wrote:
>> Where did you get the filter from?
> search eBay for "Rasmi filter" and find one with the right number of
> phases and current rating for your system.
>
> The suggestion from Bertho sounded to be worth a try too.
Yes, to expand slightly with all the fil
On 21 December 2015 at 13:15, John Thornton wrote:
> Where did you get the filter from?
search eBay for "Rasmi filter" and find one with the right number of
phases and current rating for your system.
The suggestion from Bertho sounded to be worth a try too.
--
atp
If you can't fix it, you don
Kirk,
Where did you get the filter from?
JT
On 12/20/2015 11:44 AM, Kirk Wallace wrote:
> On 12/20/2015 05:20 AM, John Thornton wrote:
>> I have a BP knee mill with an Anilam 1100M CNC kit on it. I've removed
>> all the Anilam controls a while back. I've retained the drives and power
>> supply a
By robust, what do you mean?
JT
On 12/20/2015 6:44 PM, John Dammeyer wrote:
> John,
> I'd still take a close look at your existing system to see if it is robust.
>
>
--
___
Em
After sleeping on this for a bit my question is if I change the 220v to
two hots and a neutral then string a ground wire across the floor (for
testing) and wire the left cabinet to split out one phase and a neutral
to run the 120v part do you think this would be worth the effort to try
out? I'd
Those carbon fiber sections must have a conductive layer added, for
lightning protection. The Dreamliner uses a combination of wire meshes,
and metal foils for grounding it's carbon fiber sections.
On 12/20/2015 08:50 PM, R.L. Wurdack wrote:
> Some of them tubes are Carbon fiber composite
On Sun, 20 Dec 2015, Stephen Dubovsky wrote:
> Date: Sun, 20 Dec 2015 21:59:26 -0500
> From: Stephen Dubovsky
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: Re: [Emc-users] Grounding Issues
>
On 12/20/2015 05:06 PM, John Thornton wrote:
> Well it works fine till I plug in the VFD so I guess I'll have to rewire
> the machine and my shop again :(
>
>
Well, that is now very important information! Just plugging
in the VFD, without having it start the spindle motor causes
the problem? The
cember-20-15 6:59 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Grounding Issues
>
>
> Peter, this is the root cause in the change of behavior between <=2.6 and
> 2.7 w/ the 5i25+7i77 that a couple of us have been having (was discussed
> here abou
Peter, this is the root cause in the change of behavior between <=2.6 and
2.7 w/ the 5i25+7i77 that a couple of us have been having (was discussed
here about a week ago)? I have noticed an occasional warning in the prior
version I was running (just at startup iirc.) I need to put some more
noise
Some of them tubes are Carbon fiber composite these days. Makes grounding
more fun.
- Original Message -
From: "John Dammeyer"
To: "'Enhanced Machine Controller (EMC)'"
Sent: Sunday, December 20, 2015 4:59 PM
Subject: Re: [Emc-users] Grounding Issues
he current that leaves from one location
ends up back there since current only flows when there's a complete circuit.
John
> -Original Message-
> From: TJoseph Powderly [mailto:tjt...@gmail.com]
> Sent: December-20-15 4:17 PM
> To: Enhanced Machine Controller (EMC
John Thornton [mailto:j...@gnipsel.com]
> Sent: December-20-15 3:06 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Grounding Issues
>
>
> Well it works fine till I plug in the VFD so I guess I'll have to rewire
> the machine and my shop again :(
On 12/21/2015 12:59 AM, John Thornton wrote:
> An update, I made a star grounding configuration so EVERY ground comes
> from the same place. I tested with the VFD unplugged and all is fine,
> plug the VFD in and same problem sserial errors. The VFD is 220v so to
> use one power source I'd have t
if you can get a scope (2 trace)
and _SEE_ the noise
from your machine ground to a good ground,
then you can see when you make a difference.
a good ground can be tested with a megger ( hard to find)
a good ground can be a copper rod driven 10 ft into good earth
so find the best you can and look to
On 12/20/2015 4:06 PM, John Thornton wrote:
> Well it works fine till I plug in the VFD so I guess I'll have to rewire
> the machine and my shop again :(
VFD output directly to motor and adequate noise filtering upstream of
the VFD?
---
This email has been checked for viruses by Avast antivirus
An update, I made a star grounding configuration so EVERY ground comes
from the same place. I tested with the VFD unplugged and all is fine,
plug the VFD in and same problem sserial errors. The VFD is 220v so to
use one power source I'd have to run new wire from the panel to the 220v
outlet and
I hope the procedure goes well.
Yes I have a scope.
JT
On 12/20/2015 1:23 PM, Gene Heskett wrote:
> But I am shortly going to be out of pocket till Monday afternoon.
> Cataract fixings in the XYL's right eye are scheduled for first thing
> in the morning, so we've reserved a room about a mile
John
You're welcome.
My _Go_To_ book is "Electromagnetic Compatibility Engineering" By Henry
W.Ott. Published by WILEY.
http://ca.wiley.com/WileyCDA/WileyTitle/productCd-0470189304.html
I've retained perhaps 5% and for a while the book went everywhere with me as
I tried to absorb the details.
Well it works fine till I plug in the VFD so I guess I'll have to rewire
the machine and my shop again :(
JT
On 12/20/2015 2:25 PM, John Dammeyer wrote:
> Hi John,
>
> It sounds as if you have two AC lines coming into the machine. One for the
> controller and one for the VFD. The comments abou
nding. Make sure there aren't any DC paths that are
> unexpected as explained earlier. Then start looking at how the noisy
> signals might find their way back through alternate paths. Filters,
> Ferrites are all useful to block the signals. Always best to block at the
> source.
>
There was a thread back in May (11-15) of 2015 Subject was "If there's one
thing I hate, all the noise, noise, noise, noise” where I was having strange
noise issues. There are a lot of helpful suggestions there for tracking down
noise. In my case the problem was an overly sensitive keyboard, b
nate paths. Filters,
Ferrites are all useful to block the signals. Always best to block at the
source.
John
> -Original Message-
> From: John Thornton [mailto:j...@gnipsel.com]
> Sent: December-20-15 10:27 AM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [
John,
On 12/20/2015 06:31 AM, John Thornton wrote:
> I'll start with a couple of photos of the el cabinets before breakfast
> and get more details after.
>
> http://gnipsel.com/images/bp-knee-mill/bpel01.jpg
> http://gnipsel.com/images/bp-knee-mill/bpel02.jpg
>
> JT
>
We used to have cabinet grou
I bought some Weidmuller WPE6 off ebay for less than $1/ea. In fact, I bought
various DIN terminal blocks off ebay for a fraction of the price new. I’d
watch ebay, you may find a deal…
http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2050601.m570.l1313.TR0.TRC0.H0.XWEIDMULLER+WPE6.TRS0&_nkw=WE
On Sunday 20 December 2015 13:37:38 John Thornton wrote:
> On 12/20/2015 11:47 AM, Gene Heskett wrote:
> > On Sunday 20 December 2015 12:15:21 John Thornton wrote:
> >> Back from shopping...
> >>
> >> Pencil sketch of the power side
> >> http://gnipsel.com/images/bp-knee-mill/bpel03.in
> >
> > the
On 12/20/2015 11:47 AM, Gene Heskett wrote:
> On Sunday 20 December 2015 12:15:21 John Thornton wrote:
>
>> Back from shopping...
>>
>> Pencil sketch of the power side
>> http://gnipsel.com/images/bp-knee-mill/bpel03.in
> the left box probably needs the paint cleaned off under it, and maybe a
> s
On Sun, 20 Dec 2015, John Thornton wrote:
> Date: Sun, 20 Dec 2015 12:26:51 -0600
> From: John Thornton
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: Re: [Emc-users] Grounding Issues
>
>
The bpel04 has a star washer and the stud is welded to the back plane.
The cases are bolted tight to the main column. The DIN rail is fastened
down with star washers and the locking screws are tight.
JT
On 12/20/2015 11:42 AM, Dave Caroline wrote:
> The din rail in the 05 pic is that real tight
I have a line reactor for the VFD but I've never hooked it up.
http://www.automationdirect.com/adc/Shopping/Catalog/Drives/AC_Drive_%28VFD%29_Spare_Parts_-a-_Accessories/AC_Line_Reactors/LR-23P0-1PH
Speaking of VFD's mine is grounded to the breaker panel and not in the
machine anywhere. When I c
On Sunday 20 December 2015 12:15:21 John Thornton wrote:
> Back from shopping...
>
> Pencil sketch of the power side
> http://gnipsel.com/images/bp-knee-mill/bpel03.in
the left box probably needs the paint cleaned off under it, and maybe a
star washer under the spade lug for extra connection bite
On 12/20/2015 05:20 AM, John Thornton wrote:
> I have a BP knee mill with an Anilam 1100M CNC kit on it. I've removed
> all the Anilam controls a while back. I've retained the drives and power
> supply and added a GS2 VFD for the spindle. I have a 5i25 7i77 setup.
> From the get go I've had probl
The din rail in the 05 pic is that real tight to the back panel (add
star washers to cut through paint), make sure the green/yellow blocks
have the middle screw tight.
One mighty thin grounding wire in bpel04.jpg, also could add star
washer to cut through paint
You could measure the ground resist
Back from shopping...
Pencil sketch of the power side
http://gnipsel.com/images/bp-knee-mill/bpel03.jpg
Incoming terminal block on left panel where extra ground is
http://gnipsel.com/images/bp-knee-mill/bpel04.jpg
next terminal block on right panel
http://gnipsel.com/images/bp-knee-mill/bpel05.j
On 12/20/2015 8:37 AM, Gene Heskett wrote:
> Start with a roll of flat braid equ to a 8 or 10 gauge wire. Establish a
> bolt to the case of the controller as a master ground, and make sure
> everything that references ground in the controller box is grounded at
> this bolt.
>
> Tie this bolt to t
On Sunday 20 December 2015 08:20:38 John Thornton wrote:
> I have a BP knee mill with an Anilam 1100M CNC kit on it. I've removed
> all the Anilam controls a while back. I've retained the drives and
> power supply and added a GS2 VFD for the spindle. I have a 5i25 7i77
> setup. From the get go I'v
John
Some things to look for.
1: Make sure that you field supply is not grounded to the same ground as
the VFD. I.E the 24v Filed supply must be floating.
2: All cables must be screened where possible.
3: Screen must only be connected at the source and and to one single
place to the physical eart
I'll start with a couple of photos of the el cabinets before breakfast
and get more details after.
http://gnipsel.com/images/bp-knee-mill/bpel01.jpg
http://gnipsel.com/images/bp-knee-mill/bpel02.jpg
JT
On 12/20/2015 7:57 AM, Dave Caroline wrote:
> It might help to draw a diagram showing the el
Ok, I'll work on that this morning.
Thanks
JT
On 12/20/2015 7:57 AM, Dave Caroline wrote:
> It might help to draw a diagram showing the electronics (drives
> modules etc) and where they are grounded showing outlines of the
> cases.
>
> This is to get an idea where any common mode interference sig
It might help to draw a diagram showing the electronics (drives
modules etc) and where they are grounded showing outlines of the
cases.
This is to get an idea where any common mode interference signals can come from.
Also pictures of the wiring with annotation of wire bundles to get an
idea of an
I have a BP knee mill with an Anilam 1100M CNC kit on it. I've removed
all the Anilam controls a while back. I've retained the drives and power
supply and added a GS2 VFD for the spindle. I have a 5i25 7i77 setup.
From the get go I've had problems with the electronics on this machine.
The VFD
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