Spindle speed with Mach3 problem

Spindle speed with Mach3 problem

Postby ikessky » Sun Jan 21, 2018 2:17 am

I'm running a PDJ router with Mach3 and a 2.2kw spindle with VFD. In the middle of a run yesterday, I received an error that the UC100 motion controller lost connection. I restarted the cycle and everything seemed to be OK. Now today I went to run another job and I find that no matter what my speed set in Aspire is, my spindle goes right up to 24,000 RPM's. However, Mach3 will not show what RPM it's running, only what the S was supposed to be and the Override. The spindle does respond to a speed decrease and increase. I seems as though the VFD speed is double what Mach3 shows it should be (i.e. Mach3 shows 8,500 RPM and the VFD is around 17,000).

Anyone got any suggestions? I checked my wire connections and they are sound. I also re-installed Mach3.
Vectric Apprentice
Posts: 4
Joined: Thu Mar 23, 2017 8:40 pm
Model of CNC Machine: Still looking

Re: Spindle speed with Mach3 problem

Postby martin54 » Tue Jan 30, 2018 1:04 pm

Have you checked there are no breaks in the wires ? Do a continuity check to make sure there aren't any, if you had a problem with the UC100 did you try uninstalling & then reinstalling it as well as mach3 ?

Not a set up I am familiar with just trying to think what I might do if I had a similar problem :lol: :lol: :lol:
User avatar
Vectric Wizard
Posts: 3524
Joined: Fri Nov 09, 2012 2:12 pm
Location: Crossgates, Scotland
Model of CNC Machine: Gerber System 48 (modified)

Re: Spindle speed with Mach3 problem

Postby ger21 » Tue Jan 30, 2018 2:37 pm

What are you using to control the speed? RS-485 and plugin? 0-10V?
Vectric Wizard
Posts: 952
Joined: Sun Sep 16, 2007 2:59 pm
Location: Shelby Township, MI, USA

Re: Spindle speed with Mach3 problem

Postby wmgeorge » Fri Feb 09, 2018 2:22 am

It could be a computer issue also. What operating system and is it connected to the internet?
Vectric Apprentice
Posts: 134
Joined: Sun Nov 23, 2008 6:12 pm
Model of CNC Machine: 6040 CNC Router on Mach3- UC400ETH

Return to Hardware related questions

Who is online

Users browsing this forum: No registered users and 4 guests