Re: Added a VFD to my CNC mill

Hi,

I also use the Mitsubitshi inverter, there on sell on e-bay (ex-stock
or something), with full warranty.
see this link:
http://www.stores.ebay.com/MEAUAuctions/plistings/list/all/dept1/index
.html

Hugo


for --- In CAD_CAM_EDM_DRO@y..., Marv Frankel <dcdziner@p...> wrote:

> Dan,
> I'm also running a Mitsubishi VFD but mine is the S500

series. Up

> until just the other day, when I read a post from one of the list

members, I

> didn't realize it was possible to control speeds through the CNC

driver.

> That goes onto my list of functions when I design my system.
>
> Marv Frankel
> Los Angeles
>
> ----- Original Message -----
> From: "Dan Mauch" <dmauch@s...>
> To: <CAD_CAM_EDM_DRO@y...>
> Sent: Sunday, October 27, 2002 11:32 AM
> Subject: [CAD_CAM_EDM_DRO] Added a VFD to my CNC mill
>
>
> >
> > About a year ago I bought am Mitsubishi VFD for $238 on ebay. It
> > came with a 190 page installation, setup and operation manual. I

took a

> > look at it and indeed it was a really nice inverter that would

take

> > single or three phase supply and would run the three phase motor

on my

> > enco mill. Most important was that it allowed for external manual
> > control with a speed pot, Parameter Unit, (a fancy keypad and LCD
> > display for programming the unit) and for setting various

parameters)

> > and last and most importantly it took a +5 analog signal from an
> > external source for PC control. Well. I finally got around to

connecting

> > it to my machine. Wow! I am impressed. So far I am just using the
> > parameter unit for changing speeds. It works like a dream and

runs the 3

> > phase motor much better than the Phase-o-matic inverter that I

use to

> > use.
> > Most impressive is that you can program the acceleration and
> > deceleration rates of the motor. Before my spindle would take for

ever

> > to coast to a stop. I would have to use the brake. Now I have it
> > programmed to stop in 4 seconds.
> > I am going to figure out how to use the analog signal from

DeskwinNC to

> > turn on and off my VFD and set the speed from computer via the G

code. I

> > think that would really be a nice to automatically turn on the

spindle

> > motor and set the speed via the program. So far I can heartily

recommend

> > the Mitsubishi FR200E series inverters. BTW I have been told these
> > normally sell for around $800 but got mine New off ebay for a

fraction

> > of that. It sure is nice not to have to change pulleys all the

time.

> > Last I would like to know how to calculate the maximum safe speed

that I

> > can run the spindle at. I would think that the 3500 RPM 50 Hz

motor

> > would cause the spindle pulley to explode if run at 400 Hz.
> > Dan
> >
> >
> >
> > Addresses:
> > FAQ: http://www.ktmarketing.com/faq.html
> > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> > Post Messages: CAD_CAM_EDM_DRO@y...
> >
> > Subscribe: CAD_CAM_EDM_DRO-subscribe@y...
> > Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@y...
> > List owner: CAD_CAM_EDM_DRO-owner@y..., wanliker@a...
> > Moderator: jmelson@a... timg@k... [Moderator]
> > URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> >
> > OFF Topic POSTS: General Machining
> > If you wish to post on unlimited OT subjects goto:
> aol://5863:126/rec.crafts.metalworking or go thru Google.com to

reach it if

> you have trouble.
> > http://www.metalworking.com/news_servers.html
> >
> > http://groups.yahoo.com/group/jobshophomeshop I consider this

to be a

> sister site to the CCED group, as many of the same members are

there, for OT

> subjects, that are not allowed on the CCED list.
> >
> > NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY

POSTING THEM.

> DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> > bill
> > List Mom
> > List Owner
> >
> >
> >
> > Your use of Yahoo! Groups is subject to

http://docs.yahoo.com/info/terms/

> >
> >