On Sunday 10 January 2016 12:14:23 Horváth Csaba wrote: > *would like to realize the set-up of the CNC mill You can find it in > the attachement.* > *Please help me to select which MESA controller cards would be the > best for this function.* > *The computer will be PC. In this PC there are 2 qty PCI expansion > ports and 2 qty PCIE 1x slot. Also ethernet connection can come into > question.* *The operating system will be Linux and the computer would > work with LinuxCNC program.* > * > * > *I have to convert a TDM1050MH mill, because the rotation of the > spindle stops during rotation (the control PC disables the spindle and > doesn't give an error signal), but the axis feed move along. Has > anyone ever met this kind of problem?* > And that is a bit hard on cutting tools if its in mid-job, like makes 2 or more pieces out of them. Vary bad dog that.
I have had that happen under 3 conditions: 1. Blew the puny hexfet in the motor controller in my HF toy mill, several years ago. I pulled a much heavier rated hexfet out of a pc's psu that had gone out of tolerance voltagewise. That was maybe 5 years ago. The bigger bug allowed me to raise the fuses amps label, and I've had zero problems since. 2. I had it happen on a couple occasions with the first PC I tried to drive my G0704 with. memtest upchucked all over itself. I changed computers after that, no more memtest problems. 3. My G0704 has one of Jon's pwm servo-amp drivers for a spindle driver. With a pure DC supply of nominally 126 volts, that motor, which Grizzly's catalog says 2250 revs, can run slightly above 2850 (at the spindle of course) but after quite a few minutes above 2800, apparently triggers a reset-able thermal in the motor. and its nominally 1:30 to cool and resume, so I simply don't run it faster than 2550 as a general rule. Nothing in or on that motor was above 105F when it happened. So I'd start memtest86+ from the boot screen and let it run for at least a day. If it squawks, reseat the memory 2 or 4 times per stick to clean the contacts and retest. Pay attention to keeping yourself well grounded to the case/frame while doing that of course. And report back what you find, please. 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> ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
