Okuma issue

[Colin Gilchrist]

Thats the great part. Even though its the same program, the machine took off at a completely different point in the program.

 

That tells me it is a problem with one of the axis drive boards, or an intermittent power spike. Is adding a power line conditioner an option?

[Leigh @ Kodiak]

So after a few more weeks with no problem, we had another "incident."

 

This time instead of the tool just taking off in rapid at a random point in the program, the symptoms were a little more interesting. While in the middle of a sub program running on the second part (each sub runs 8 times per cycle) the machine decided it was not going to finish this sub program, but instead it retracted to Z0, called up the first tool, and started running the main program from the very begging.

 

I know the operator wasn't involved this time for sure, as I was standing right there when it happened.

 

A repair tech should be coming to look at the machine soon, and the first thing I will have him check is that the machine is properly grounded.

[taperlength]

Anyone doing welding nearby? Maybe in a shop on the other side of the wall?

[Leigh @ Kodiak]

Anyone doing welding nearby? Maybe in a shop on the other side of the wall?

 

Nothing like that next door at all.

[Rkwiant]

I been round a bit, been a machinist 25 years and running CNC for 18 of those. Not sure what kind of scales you got on your machine but alot of scales when they get oil on them or dirt on them they will just take off. I had this happen to me when i was threading a 40 inch nut, with #2 acme. and it wasnt a pretty site lol. It was on a 80" VTL with Allen Bradley 8000 series controls. I am not sure what kind of scales newer machines use though.

[mig]

So after a few more weeks with no problem, we had another "incident."

 

This time instead of the tool just taking off in rapid at a random point in the program, the symptoms were a little more interesting. While in the middle of a sub program running on the second part (each sub runs 8 times per cycle) the machine decided it was not going to finish this sub program, but instead it retracted to Z0, called up the first tool, and started running the main program from the very begging.

 

I know the operator wasn't involved this time for sure, as I was standing right there when it happened.

 

A repair tech should be coming to look at the machine soon, and the first thing I will have him check is that the machine is properly grounded.

Are you sure you are not too close to limit swiches ? Let say you using long tool , so you are close to z limit when you going from point to point