Changing MoriSeiki NT 5400 rotary behavior (Fanuc 31iA5)

[Watcher]

Did a search but could not find...

 

The C axis of our NT 5400 is working on the EIA mode - That is, it only moves between 0 and 360 degrees (Absolute). If more than one turn is executed, the axis starts to count from 0 again.

 

I have a program wrote by hand that uses cylindrical interpolation (G7.1) and if the machine behaves like above, that is, using shortest moves, this program will scrap the part.

 

When I change the C axis definition in VERICUT to set it to linear mode (That is, it accumulates turns, 2 full turns makes it to position to 720 degrees), then it works well.

 

I´m told that this machine works on C axis on shortest mode, and I´m afraid this program will fail there.

 

Is there any M code or parameter I can change to make the axis to behave like a linear axis and also ignore the shortest moves?

 

Tks,

 

Daniel

[Guest]

That behavior is set in the machine's parameters. C-Axis Rollover. Idon't recall the parameter though...

[Watcher]

Thanks! I´ve found it:

 

#1006 bit 1 [C Axis] = 1 – Enable axis rollover
#1008 bit 0 [C Axis] = 1 – Changes shortest move behavior

[Mic6]

Or just do what this guy did...

 

[Watcher]

Jesus Christ.

 

[Newbeeee™]

Haha - I saw that on Practical Machinist.

[GoetzInd]

Haha was just going to post that photo but mic6 beat me to it! Just noticed how weak the area that failed looks. Especially for something as brittle as cast iron.

 

Mike

[Mic6]

Needs more bolts! 

[Newbeeee™]

Jesus Christ.

 

The only way he would have helped is wheeling your toolchest outta the place!

[Guest]

I wonder what THAT sounded like?!

[Henk]

I wonder what THAT sounded like?!

 

 

The machine or the boss ??

[Rstewart]

Like I said on the other site,  5% Rapid is for Pu$$ies

[Guest]

The machine or the boss ??

YES!

 

Both please. :

[mkd]

meh, put the taper pins back in and hit cycle start.