Messages

11

General Mach Discussion / Re: Spindle speed non-responsive

« on: June 05, 2017, 09:33:46 AM »

The guys at Mitsubishi are great to work with.  I called them this morning and they told me I had the voltage wires incorrect.  I was right according to what I read in the manual however as soon as I made the change it is working.

12

General Mach Discussion / Re: Spindle speed non-responsive

« on: June 05, 2017, 08:40:50 AM »

I have a Mitsubishi FR720D VFD, PMDX 126 and 107 boards and Mach III software.  I think the problem is with some of the VFD settings however I am having problems getting some of the parameters set, I am sure at this point it is a problem with the parameters...just trying to figure out where.  I am unable to get PR73 to change to where it should be so I am thinking there is an additional PR that needs to be set I just can't figure out which one.

13

General Mach Discussion / Spindle speed non-responsive

« on: June 01, 2017, 05:51:11 PM »

I am new to everything here so please bear with me.  I just got this cnc conversion (was a cnc prior) running today and seem to have run into a wall.  When I try to adjust spindle speed with the MDI and the main screen (alt 1) with the feed rate override there is no difference in spindle speed.  Also It doesn't seem to matter if I type in a speed in the rpm box below it always runs the same rpm.  I am guessing I have something messed up in settings I just can't find it.  The VFD can control the speed when running the machine from the VFD so I think I have that set correctly.  I searched the forums for quite a while and checked over some things however I have yet to find a solution.  Any help is greatly appreciated.