On Monday, January 12, 2015 09:13:09 AM RogerN did opine And Gene did reply: > -----Original Message----- > From: Mark Johnsen > Sent: Monday, January 12, 2015 12:00 AM > To: [email protected] > Subject: [Emc-users] Anilam Crusader M Servo Control Voltage > > >I have most of the electrical worked out for my Anilam Crusader M > >retro to a mesa 5i25/7i77. I haven't torn apart anything, but > >close. > > <snip> > > >Also, the best way I can see to check this is look up what the max > >rpm is for the motor and see if I can reach that at 10vdc. If I'm > >2/3 off, apply 15vdc and see if I hit the spec? > > > >Suggestions? > > > >Thanks, > >Mark > > I converted my Crusader M Lathe using mesa 5i25 and 7i77 (IIRC). The > amps worked fine with the +/- 10V signal. I think the +/-15V is just > the power for the op-amps. I would guess if works with higher > control voltages by adjusting a gain pot for full output at different > voltage inputs. I just figured it used +/-10VDC like my Crusader II > mill does, and it worked out great. > > Roger Neal > Many of the older op-amps could not go "rail to rail" and needed a 2 or 3 volts power supply heardroom to reach +-10 volts. So were commonly run at +- 15 volts just to get the full 10 volts +- swing.
Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS ------------------------------------------------------------------------------ New Year. New Location. New Benefits. New Data Center in Ashburn, VA. GigeNET is offering a free month of service with a new server in Ashburn. Choose from 2 high performing configs, both with 100TB of bandwidth. Higher redundancy.Lower latency.Increased capacity.Completely compliant. www.gigenet.com _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
