fanuc o-t feed rate help

[dcoupar]

Originally Posted by A L Can i ask anyone, When you do G95 for the first time, say with a G01, then type in your XYZ and your Feedrate, for the first time in your code, is that the only time you'll need to use G95? Or do you need to specify mm/rev (G95) every time that your cutting? This is for FANUC 6MB controller system...(i don't have access to a machine, its just for a university assignment)...

G94 and G95 are "modal", so when you program G95, it puts the control in feed-per-revolution mode, and it remains that way until it reads a G94. So if you always program in G95, put one in the beginning of the program and it will stay active for the entire program.

[beege]

Originally Posted by dcoupar G94 and G95 are "modal", so when you program G95, it puts the control in feed-per-revolution mode, and it remains that way until it reads a G94. So if you always program in G95, put one in the beginning of the program and it will stay active for the entire program.

Also, the default turn-on mode is set by parameter, so you may "turn on" in G95 or in G94 (on my lathe its G98/G99)

[dcoupar]

Originally Posted by joe1970 the spindle does have an encoder. I tried the G95 contol says the code is invalid.I always use css (unless I am threading or grooving) I think just a G-code list for the O-T control would help if anyone has one there has to be something simple I am missing I always program with a G90,G99 and G96

Check parameter 007 bit 5. If it is 0, your control is set for "Standard G Codes", which uses G98 and G99 for FPM and FPR. If it's 1, the control will use "Special G Codes" which uses G94 and G95.

[dcoupar]

Originally Posted by beege Also, the default turn-on mode is set by parameter, so you may "turn on" in G95 or in G94 (on my lathe its G98/G99)

Parameter 007 bit 2 selects which code G94 (G98) or G95 (G99) is active at power up.

[beege]

Thanks for the info dcoupar!

[dcoupar]

Not a problem. That's why we all hang out here!