Pm-940m-cnc (pre-assembled)

[phazertwo]

NICE!

My spindle is still not working. On your ports and pins config page, what are your settings on the spindle setup tab? Also, on your motor tuning config page, what are your settings on the spindle tab?

At this point I have uninstalled and am re-installing M3. Hopefully I will get a chance to try it out tonight.

Thanks

 

[phazertwo]

THIS POST WAS A ERROR... ADMIN PLEASE DELETE

 

[cut2cut]

NICE!

My spindle is still not working. On your ports and pins config page, what are your settings on the spindle setup tab? Also, on your motor tuning config page, what are your settings on the spindle tab?

At this point I have uninstalled and am re-installing M3. Hopefully I will get a chance to try it out tonight.

Thanks

Ok, here are ALL my current mach 3 settings including the specific ones you asked for + pictures of my VFD wiring and the controller wiring. The only thing that isn't working is soft limits. Hope you can get to the bottom of the spindle issue soon.

Jake

 

[cut2cut]

also, a picture of the wires in the motors electrical box from the factory. I reversed the U1 and W1 from what is shown so my motor would spin the correct direction.

Jake

 

[cut2cut]

I opened up the box yesterday and there is no orange wire connected to e-stop button. The button itself also checks out good.
Will try to wire directly next.

Here are some pictures that might help figure out if your wiring is correct. You could also change the pin that the e-Stop goes to on the controller board ( if you think its a bad input ). Then change the pin designation in Mach 3 for the Estop button.

 

[phazertwo]

Well I got my spindle running last night. Stupid me forgot to un-check the de-activate spindle relays box... Fired right up and seems to be working great, I still need to get my digital tach out and see how accurate it is, but for now it's spinning.

However I have run into more serious issues. The mill is not running consistantly if I run it from gcode, or tell it to go to zero. It starts and stops about every second, which and it doesn't seem to use the deaccel or accel to do it... What am I missing here. My settings are identical to Cut2cuts...

Read here for more. http://www.hobby-machinist.com/threads/pm-940-cnc-jumping-with-gcode.55611/

PZ

 

[cut2cut]

PZ

Try turning off the spindle again to see if it's electrical noise from the VFD causing the issues ?

Jake

 

[phazertwo]

It was doing it with the spindle off too.

Turns out it was the buffer time on the nMotion config screen... Looks like you're running 759ms, mine is running about 2000ms.

PZ

 

[cut2cut]

It was doing it with the spindle off too.

Turns out it was the buffer time on the nMotion config screen... Looks like you're running 759ms, mine is running about 2000ms.

PZ

So you are running a larger buffer and that solved it. Good to know....

Mine was automagically set, probably the default. I'm using a computer running widows XP, btw , which may have less overhead / more efficient. And coupled with a possibly faster computer I can get away with the default settings.

 

[rodjava]

View attachment 225544 Hi Rod,

I moved the electronics. Later tonight I'll explain in detail. Here is a picture of mine. Besides elbow grease and a day of work, it's not too bad. The box is very very heavy, so you'll need two people minimum. Some of the wires are just barely long enough but it's very doable. When you are doing it it seems a little crazy, but in the end it's worth it, imho.

Jake

Jake,
I can't thank you enough for sharing how you relocated the electrical enclosure. I'm expecting my 940 cnc in about 4-5 weeks and will likely do the same as you.

Rod in San Francisco