don't feel bad :) http://www.electronicsam.com/images/KandT/servostart/ampmess.JPG
sam ----- Original Message ----- From: "Kirk Wallace" <[EMAIL PROTECTED]> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Sent: Saturday, June 07, 2008 5:13 PM Subject: Re: [Emc-users] Pico on Pluto > On Sat, 2008-06-07 at 13:32 -0700, Kirk Wallace wrote: > ... snip >> I can certainly try, but I am using the latest 2.2.5 which should be >> fixed. I have pwmdir set true. I measured only logic levels on the dir >> pin and analog on the PWM pin. The no load forward and reverse RPM >> through the range (0 to 5500) was within 50 RPM. >> > > These are a little embarrassing, but here are some pictures of my > Pico/Pluto setup: > > http://www.wallacecompany.com/machine_shop/Pluto/ > > The cores of the inductors seem to be heating and not the copper, so it > takes a while for the heat to be detected. It seems that one or the > other inductor heats up dependent on direction of the motor rotation. I > seem to get no heating at zero speed and have only done brief testing up > to 30% speed. > > The upper trace is the PWM signal at the amp connector. The lower trace > is the direction signal at the amp connector. > > -- > Kirk Wallace (California, USA > http://www.wallacecompany.com/machine_shop/ > Hardinge HNC/EMC CNC lathe, > Bridgeport mill conversion, doing XY now, > Zubal lathe conversion pending > Craftsman AA 109 restoration > Shizuoka ST-N/EMC CNC) > > > ------------------------------------------------------------------------- > Check out the new SourceForge.net Marketplace. > It's the best place to buy or sell services for > just about anything Open Source. > http://sourceforge.net/services/buy/index.php > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > > > -- > No virus found in this incoming message. > Checked by AVG. > Version: 7.5.524 / Virus Database: 269.24.6/1489 - Release Date: 6/7/2008 > 11:17 AM > > ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
