Good news! We managed to install a new Yaskawa V1000 VFD to drive the spindle of the lathe. Today we finished with the arrangement of the wires, and it's working perfectly. It was a really fast work considering that we had to adapt another motor (the original was a 208 volts three phase and here the most common VFDs work with 380 volts). So now it has a 20 hp motor from an old copy lathe that's obsolete.
It was pretty straightforward since all the logic signals were standard and we only had to wire them to the VFD. Also, it's braking really well considering that we didn't mount the braking resistors yet. So, now that's fully functional again we're going to test and try to identify the signals from the DC servo motors, because we're 100% sure that we're going to convert it to LinuxCNC. They're mitsubishi, I don't have the model number right now but I'm going to tell you tomorrow, may be some of you know something about them. Well as always thank you for your help and knowledge, I have to say I'm in love with this community :). 2014-07-21 20:53 GMT-03:00 dave <dengv...@charter.net>: > Ouch! Maybe they deserve to go out of business! > ....Something like leading a horse to water. ;-) > > Dave > > On Fri, 2014-07-18 at 11:23 -0400, Dave Cole wrote: > > On 7/17/2014 6:37 PM, Leonardo Marsaglia wrote: > > > 2014-07-17 16:18 GMT-03:00 dave <dengv...@charter.net>: > > > > > >> Mazak's policy is set up to encourage you to buy new rather than > > >> fix. :-( > > >> > > > Indeed. A couple of years ago, I asked to mazak for the replacement > for the > > > standar CRT monitor. They quoted me US 5000 more or less, for the > entire > > > unit. By that time, we were using the lathe with an old CGA monitor, > > > because the frequency is the same. I bought an adaptation board from > CGA to > > > VGA so now I can use any monitor. But yes, they're thiefs! > > > > > > > I talked with the company that lost the controls on the two Mazak lathes > > and the big problem for them was operator training and the existing > > programs that they had stored. > > > > They could not afford the re-learning curve. So they popped for the > > $10K in new boards with the hope that they can eek a few more years out > > of the lathes. The company is not very forward thinking. If they > > believe they can get by for a year or two as is... they will stick with > > what they have until something else catches fire. They have no long > > term plans to replace anything which of course is only planning for > > disaster. Which pretty much explains their declining business. > > > > Dave > > > > > ------------------------------------------------------------------------------ > > Want fast and easy access to all the code in your enterprise? Index and > > search up to 200,000 lines of code with a free copy of Black Duck > > Code Sight - the same software that powers the world's largest code > > search on Ohloh, the Black Duck Open Hub! Try it now. > > http://p.sf.net/sfu/bds > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > ------------------------------------------------------------------------------ > Want fast and easy access to all the code in your enterprise? Index and > search up to 200,000 lines of code with a free copy of Black Duck > Code Sight - the same software that powers the world's largest code > search on Ohloh, the Black Duck Open Hub! Try it now. > http://p.sf.net/sfu/bds > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- *Leonardo Marsaglia*. ------------------------------------------------------------------------------ Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
