On Friday 02 February 2007 20:06, richard harris wrote: >First my sincere appreciation for all the help, this machine is really > starting to drive me nuts. > > Things that I have now tried are; > Series choke no apparent affect > Ferrite beads no apparent affect > Series choke and Ferrite beads no apparent affect > Wraping the drive in foil no apparent affect, but the > aliens will not read its thoughts I put all the grounds to a common > point no affect I removed all the grounds on the system no affect > > The encoders are BEI H25s and are differential, the motors nameplates > are long worn away but they are 90v 10amp continuous rated. > > Rutex USA says the new drives have different filters, from the older > 9series, which make them more susceptible to noise, but it allows for > faster communication between the drive and computer. He also said that > the noise is from the PWM chopping of the drive itself and not an > external source. > > Im hardly a Double E, so I am swimming in the deep end. I used to > have electric RC cars with PWM speed controllers, and we would put > small ceramic caps across the terminals at the motor. Is that an idea, > or am I going to kill myself or worse a motor.
PS::: You won't kill you (probably), nor will you kill a motor, but you'll for sure kill the motor controller. Some are so touchy they can't even be scope probed with a 10 megohm, 11 pf probe. > Again thanks for the help and if you have more ideas throw them at me. > >Richard > >richard harris <[EMAIL PROTECTED]> wrote: Hello, > > This is a bit out of the standard EMC domain, more of an integration > issue. > > I have a Rutex 2200 drive, coupled to the Rutex motherboard. The > encoder wires are twisted pair, with shielding grounded at the drive; > the power wires are also shielded and run to the motor in a separate > conduit. Somewhere I am getting noise in this system. I have Rutex 9x > drives on my other machine and they run great, Rutex says that the new > drives are more susceptible to noise. How does that work your new > product is inferior to the one it replaces? > > I have tried shortening wires, adding grounds, checking grounds, even > asked the double E's at school. > > Any ideas on how to reduce the noise, looking for any ideas at this > point no matter how crazy. If I have to stand on one foot while > operating my mill so be it. > > Thanks > >--------------------------------- > Cheap Talk? Check out Yahoo! Messenger's low PC-to-Phone call > rates.----------------------------------------------------------------- >-------- Using Tomcat but need to do more? Need to support web services, > security? Get stuff done quickly with pre-integrated technology to make > your job easier. Download IBM WebSphere Application Server v.1.0.1 > based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=12164 >2_______________________________________________ Emc-users mailing list >[email protected] >https://lists.sourceforge.net/lists/listinfo/emc-users > > > >--------------------------------- >No need to miss a message. Get email on-the-go >with Yahoo! Mail for Mobile. Get started. -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Yahoo.com and AOL/TW attorneys please note, additions to the above message by Gene Heskett are: Copyright 2007 by Maurice Eugene Heskett, all rights reserved. ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
