i put ferrites on either end of the cable that connects the spindle inverter to the relay on the PDMX and have not had a crash since.?
still want a solution to the b axis issue
?
?
Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...Spencer@...Spencer@...(425) 791-0309
(707) 223-8212
------ Original Message ------
Sent: 2/23/2020 1:55:39 PM
Subject: [MachCNC] pokeys almost working
I have found a few reasons why the Pokeys was not working for me with Mach 3 and a new win 10 computer.
First, maybe, the computer came with a cheap bluetooth dongle for a mouse etc. I believe it was causing erratic behavior. Using a plug in USB mouse might have helped.
I definitely had Pokeys crash and take Mach3 with it almost every time the spindle started. I was using the on board relay in the PDMX 122. As far as I can tell the contacts are completely isolated from the board other than the short traces to go to the screw terminal block for connection. I am using the multi purpose input to my Teco inverter with simple switch closure, no PWM speed control etc. This is the only connection between the inverter and anything else, no shared grounds etc. The motor cable is heavily shielded and grounded to the chassis ground at the inverter. There are no connections anywhere that could cause ground loops.
If I turn the inverter on and off many many times with a jumper at the control input neither Pokeys nor Mach3 crashes. So I do not believe that it is an EMI created by the spindle running or starting or stopping. However there is a setting for carrier frequency of the inverter. It can be set from 1 to 16 khz with 5 being the default.? ?Is there any point in fiddling with this?
Even though there is no connection between the PDMX board and the inverter should I stick in another relay to isolate even more? Any other suggestions?
And the last problem. I am using axis B as a parts counter. I got this working perfectly with the old computer at the suggestion of people on this list. Now I can not figure out how to get the B DRO to increment. The Pokeys config has nothing about axis B. I have fiddled with the settings in Mach3 but can't seem to stumble on anything that works.?
?
?
Best regards, Spencer Chase
67550 Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...Spencer@...Spencer@...(425) 791-0309
(707) 223-8212
