M0 stops spindle/coolant

[cnelson616]

Hello all,
I program a few different controls.

My Makino's and Matsuura's stop at an M0 and when restarted they automatically turn the spindle and coolant back on.

My Haas's and Kitumura's stop at an M0 but when restarted they DO NOT restart the spindle or coolant. We have had rookie operators crash because of this.

Is there a way to modify the ladder logic, parameters, or even just a machine setting to have the spindle and coolant resume after an M0?

Thanks,
Chris

 

[DouglasJRizzo]

Hello all,
I program a few different controls.

My Makino's and Matsuura's stop at an M0 and when restarted they automatically turn the spindle and coolant back on.

My Haas's and Kitumura's stop at an M0 but when restarted they DO NOT restart the spindle or coolant. We have had rookie operators crash because of this.

Is there a way to modify the ladder logic, parameters, or even just a machine setting to have the spindle and coolant resume after an M0?

Thanks,
Chris

That's a parameter setting. An easy fix. Check your user's manual or call the distributor. Five minute fix at most.

 

[yoke]

I'm surprised the machines would feed without the spindle spinning. I have to turn off spindle rotation condition if I want to start a program without it spinning.

 

[dandrummerman21]

Please, if you find a parameter for the kitamura, let me know. Because this is a tree I've barked up for a while now.

Had a 93 mycenter 3x with apc, fanuc 0m control, there was nothing in the ladder / parameters that I ever found that would change this behavior.

That machine is gone, but we also got a 1998 h400 horizontal with 15mb. Same thing, never found a keep relay that changes this behavior. I believe I asked kitamura a long time ago and they told me they would look into it but never got back to me about it.

And further still, now have a 2005 hx400if with 16imb that does the same shit too!


They do the same thing with M1 as well when you have the switch on.



I would expect haas to have a simple setting change. But seriously, if you figure out the kitamura, I want to know! I'm 99% sure they put nothing in the logic to turn the spindle and coolant back on. Even cheap taiwanese leadwell machines have this in their logic!



Just make sure you always have M3 and M8 somewhere after any M0 or M1 in your program. It is almost never a problem with code that is posted out. But if someone (me) gets the bright idea to add a m0 in the program and I don't remember to turn the spindle back on, the machine will certainly try to cut without it. Dumb dumb dumb.

 

[Vancbiker]

There will only be a PMC parameter to affect that behavior if the machine builder included it in their ladder logic.

 

[sinha]

Just make sure you always have M3 and M8 somewhere after any M0 or M1 in your program.

Exactly!
Even if it is not needed, it won't hurt.

 

[camhead420]

All my code generators are set up to call out all that info. To easy not to include in all programs.

 

[Vancbiker]

Personally, I would not want a machine that feed was locked unless the spindle was turning. Too limiting in how one might someday want to run it. In the past, I did a job where a .875” hole needed an oillite bushing installed and finish bored. The original process had the parts made, then sent to an assembly area to press in the bushing. Then the parts were reloaded into the machine to be finish bored. The revised method had an installation mandrel included in the magazine. The operators would then load a casting and a bushing on the mandrel. The part got machined and when the bore was done, the bushing pressed in and then finish bored. Major time savings due to reduced operations and handling. Also a small reduction in scrap due to eliminating loading error for the separate finish boring operation.

I suppose one could have pressed the bushing while turning 50 or so RPM. Hard to say how that would have turned out.

While I personally have never done it in a CNC, I have seen several places cut keyways in a bore by feeding with the spindle stopped.

 

[VTM]

"While I personally have never done it in a CNC, I have seen several places cut keyways in a bore by feeding with the spindle stopped."

Exactly. We have done just that quite a bit making spacers for Roll Form Machines.