PP 7i92/C11G problem

you were right about the back EMF. Added a couple of 1n4148 diodes across the terminals of the relays, and we are back in business.

Would you mind giving a bit more info on your set up. ie what version of PP. Have you had to change any of the general python files or have you managed it just with the Hal and ini files.

I have version 2.4 that I use on a pcnc1100 that I have fitted a spindle encoder and three mpg's to a 7i85.

But I would like to see if I can get PP onto a Warco mill. with a Mesa 7i92 and connected to standard bob's

Clive s wrote: Would you mind giving a bit more info on your set up. ie what version of PP. Have you had to change any of the general python files or have you managed it just with the Hal and ini files.

I have version 2.4 that I use on a pcnc1100 that I have fitted a spindle encoder and three mpg's to a 7i85.

But I would like to see if I can get PP onto a Warco mill. with a Mesa 7i92 and connected to standard bob's

once I selected a Mesa board which was the 7i92. This was because it's ethernet and fully supported by PP. Now, I could have screwed up when I selected the CNC4PC C11G board. I decided on this one because it's supported by Mesa and has a PWM spindle control giving me 0-10v for my G0704 spindle board. Also a chargepump function is built into the board.
Once I had those, I connected everything together and discovered that the ini and Hal files for PP only needed a few changes and was mostly working. And this is with the default .bin file from Tormach. I had to switch over to the proper .bin though as the charge pump and spindle control's are defined differantly by Mesa. Basically the chargepump and spindle PWM pin definitions needed to be reversed. Someone posted a .hal file on this thread that I don't think works. There is no spindle definition at all in the file. Right now I have full functionality of a 2.4 PP with the least amount of changes I could get away with. that will help when there is a upgrade again.

I had to switch over to the proper .bin though as the charge pump and spindle control's are defined differantly by Mesa.

Actually its not so much that Mesa defines them differently but that the Tormach breakout does not use
PWM for the spindle (it uses pulse frequency) and theC11G uses PWM, so you must use a C11G compatible
bitfile to get PWM on the proper pin.

Right now I have full functionality of a 2.4 PP with the least amount of changes I could get away with. that will help when there is a upgrade again.

Thank you for your time with this. I did try your ini files and hal files but they crashed out (for me anyway) with the usbio stuff in the hal file. I commented all that out but then it failed with one of the python files.

Would you be willing to publish the contents of the Tormach mill folder. Or perhaps email me with it.

I posted the .hal file and it works perfectly with the C11GS card.