Fanuc 3m display questions

camaro_dan67 · Nov 20, 2020

Is there a way to get either the absolute or relative displays to show the correct z position for the current tool I am using? It only shows a large negative number in z while the tool is cutting the part. The x and y positions are correct. I use G92 for my work offset in x and y and G43 in the program to call tool offsets from the tool table.
Thanks, Dan.

Triallyr · Nov 21, 2020

camaro_dan67 said:
Is there a way to get either the absolute or relative displays to show the correct z position for the current tool I am using? It only shows a large negative number in z while the tool is cutting the part. The x and y positions are correct. I use G92 for my work offset in x and y and G43 in the program to call tool offsets from the tool table.
Thanks, Dan.

I have a Fanuc 3T (lathe) but think you would touch off the tool to the top of the part and then enter G50 Z0

Dan from Oakland · Nov 21, 2020

OP is not using the G50 position preset for the Z axis. He is using the Z offset for the tool stored in the offset table.Pretty sure there is a parameter that will change the display position. I know there is a setting on a 10M to do that. If you have the control manual, dig thru the parameters or perhaps someone will chime in here.

Vancbiker · Nov 21, 2020

No access to a series 3 controlled machine to try this, but parameter 4 bit 2 set to 1 may do what you want. It talks about displaying the programmed position when set to 1 versus the actual position when set to 0.

camaro_dan67 · Nov 22, 2020

Thanks for the replies guys. Van I actually talked to the Fanuc service guy and he told me parameter 5 bit 2 which didn't work. I'll try your suggestion next. I do have the programming and service manuals for the control but alot of the wording in them is confusing.

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