Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: sn96 on June 10, 2023, 01:49:55 PM

Title: External noise causeing mach 3 to estop
Post by: sn96 on June 10, 2023, 01:49:55 PM

Hello all,

I have a new issue and id like to hear your thoughts. Every time I press the motor stop button on my mill it causes mach3 to go into estop mode. there is no connection what so ever between the mill spindle and mach3, in fact, if I use my shop vac and then turn it off while in the middle of a cut, it will throw mach3 into estop mode! Apparrently the new motion card is getting spikes every time a power switch is turned off! Has anyone tried using a usb isolator to prevent this from happeneing?

Title: Re: External noise causeing mach 3 to estop
Post by: joeaverage on June 11, 2023, 05:11:05 PM

Hi,
USB is rather noise prone. An ethernet connection is less so, and that is because an ethernet connection has a small signal transformer at each end
whereas a USB does not. I have been told that there are USB cables that have signal transformers at each end and are more noise resistant. They are a non standard part
so I suspect you would have to aske specifically for one, and pay a premium probably, but might be worth a try.

Craig