Jihn Two things I can comment on. 1: I prefer 24v on the field voltage but has nothing to do with your problem 2: With the DM825 you have to use the inverted signal of the stepper pulse signal. In your hal you just have to set the invert parameter for your pulse pin to true.
On 2014-08-24 18:14, John Alexander Stewart wrote: > Hi all; > > Today is "CNC Machine Day", and I've spent over 3 hours trying to get a > 5i25/7i76 combo working. > > 1) jumpers verified on 5i25, so that it supplies 5v to the 7i76; > 2) both yellow LEDS on the 7i76 light. > 3) Field power, separate 12v power supply. > 4) 5i25 has sticker on back saying it has 7i76x2.bit (or very close) > installed. > > Symptoms. Nothing happens. > > - No stepper movement. In pncconf, no movement when testing axes. digital > stepper drives have green LED lit (Leadshine DM856) Motors do not power up; > they are as cold as the machine. Leaving the enable lines unconnected (as > per documentation) or tying them high/low does nothing. > > - Trying Ed's test at > http://softsolder.com/2013/06/18/mesa-5i25-7i76-first-light/ does nothing. > > (using his wiring in the picture, but with an old needle volt meter, and > then a digital meter - would have expected the analogue needle to at least > quiver off of 0.0v) > > - running halcmd show pin for an input pin does not change anything when > the pin is tied to field ground, or field v+. > > - LinuxCNC - no movement, no ability to set or read a HAL output pins via > the hal commands, and watching pins does nothing. > > Took the parallel cable off of my working machine (5i25 driving a g540) to > see if something happened to the cable currently on this machine. No change. > > I'm obviously doing something idiotic. Maybe I'll go and take the dog for a > long walk. But, I did not expect to have nothing coming in. > > So, any thoughts as to what I have missed? > > I might have to just go back and work on my KX1, now that I've been given > some help on THAT one by you guys this week... > > Oh, dmesg | grep hm2 says: > > [ 68.132503] hm2: loading Mesa HostMot2 driver version 0.15 > [ 75.637313] hm2_pci: loading Mesa AnyIO HostMot2 driver version 0.7 > [ 75.637448] hm2_pci: discovered 5i25 at 0000:05:00.0 > [ 75.638147] hm2/hm2_5i25.0: Smart Serial Firmware Version 35 > [ 75.695449] Board hm2_5i25.0.7i76.0.0 Hardware Mode 0 = standard > [ 75.697784] Board hm2_5i25.0.7i76.0.0 Software Mode 0 = io_spin > [ 75.700686] Board hm2_5i25.0.7i76.0.0 Software Mode 1 = io_ana_spin > [ 75.704528] Board hm2_5i25.0.7i76.0.0 Software Mode 2 = > io_enc_ana_spin_fv > [ 75.873557] hm2/hm2_5i25.0: 34 I/O Pins used: > ... > > JohnS. > ------------------------------------------------------------------------------ > Slashdot TV. > Video for Nerds. Stuff that matters. > http://tv.slashdot.org/ > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Regards /Groete Marius D. Liebenberg +27 82 698 3251 +27 12 743 6064 QQ 1767394877 ------------------------------------------------------------------------------ Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
