[mrrocsta]

Hi all,
Hope someone can shed a little light on a issue I have,
I have a seriously messed up FANUC 20t controller,


the symptoms are that the buttons on the controller now mimic that of my 0t

controller making it almost un-useable.
The most frustrating thing is other than sending a program down with the wrong number, if I knew what happened I could put it right.
Any help would be highly aspirated.

[fordav11]

those things don't just change themselves. what did you do?
looks like the parameter for the MDI keypad type, and thus the screen size, has been changed.
probably bit 2 of 3100. so... xxxxx1xx

or post here what you have in parameter 3100

[mrrocsta]

I agree things just don't change by themselves, The guy that was running the M/C is new to Fanuc and dosen't know what happend...... and it now won't zero the Z axis when the cordanate is in the minus.
The value in 3100 is 0 0 0 0 1 0 0 0
Thanks for you time on this.

[fordav11]

see attached page from manual. probably that parameter is ok as-is. anyway parameters have not changed if the guy doesnt know about Fanuc.
maybe something on the SETTING screen has been changed?
It's possible to change settings without parameter write enable.

[mrrocsta]

Thanks,
I have pressed him as to what he has done and it now comes to light he has 'written' his own program and included a P0 and on the machine it went to will not support it. Have tried to delete the program he had sent down but it won't delete, maybe because he called it O1234 or because of the P0 any I'm making slight headway.

[fordav11]

if you need to delete all programs in the memory, power off, hold DELETE and power on and continue holding DELETE until the controller comes up on screen.
all programs will be deleted.
however before you do that, if it was the program that caused the problem, get a copy of it and post it here (or write it out on paper and type it here)
and we might be able to tell you a bit more about how to fix the problem. maybe he used G10 (parameter programming mode).

[sinha_nsit]

Deleting the programs won't revert back the parameters. Post the program which caused the problem. If the setting screen was manipulated, call somebody to examine it.

[underthetire]

Pxxx the control may have thought you were reading in a parameter file. Hope you had it backed up.

[fordav11]

Deleting the programs won't revert back the parameters. Post the program which caused the problem. If the setting screen was manipulated, call somebody to examine it.

re-read my post and you will see I already said don't delete the program just yet and I asked him to post the program here....

[drdos]

I suggest changing 3100 to all 0's then try all the different combination of bit 3 and 2

00000000
00001000
00000100 (as it is now)
00001100

[mrrocsta]

Here is the problem program where I think the problem started, should have taken out line 20 as that's used on the 0T not the 20t.

&HE:%
:1234(2MM CHAMFER OP CU LIGHTING HINGE PINS)

N10 G21 G80
N20 G10 P0 Z200.
N30 G50 S1200 M3

(OP 1 CONTOUR ROUGH TOOL 1 EBLC 08 16 95 5 80 CT525 P)
(TOOL TIP RAD 0.8, STOCK AMOUNT 0.2)

N60 G50 S1200
N70 G96 S400 M03 G99
N80 G0 X23.643 Z1.321 M08
N90 G1 X20.814 Z-0.093 F0.3
N100 X24.814 Z-2.093
N110 X27.643 Z-0.679
(OP 2 FINISHING TOOL 1 EBLC 08 16 95 5 80 CT525 P)
(TOOL TIP RAD 0.8)
N120 G0 X57.476 Z23.439
N130 X23.36 Z1.18
N140 G1 X20.531 Z-0.234 F0.1
N150 X24.531 Z-2.234
N160 X27.36 Z-0.82
N170 G0 Z100.
X50.


N180 M30
%

[Heavy_Metal]

Hi,

G10 P0 Z200. means your Z-Work Shift = 200.
The machine reads the Work Z-value out of the program.
When you need multiple Work Shifts and you don't have G54 - G59 you can use G10 P0 Z---.---
If you want to turn 2 sides of a product you can change the Works Shift by G10 P0 Z in the 2nd program.
Program 1 and 2 needs both different G10 P0 Z-- values.

Be carefull, the last Z-value stays active.

Regards,
Heavy_Metal.

[navigatorfan]

Hi i have a fanuc 20-T lathe
We wanted to set a new workpiece zero (G54)."


5. In the window where the WORK SHIFT zero is displayed, tried to enter X200 in MDI mode and press the INPUT button, but a WRITE PROTECT message appeared."

6.

7. Then, I entered G10P0X200 in MDI mode, and the X coordinate changed

8.

9. Then, I wanted to call G55 and entered G10L2P2X210 in MDI mode, but I'm not sure if this code was accepted.

10.

11. Later, I noticed that in MDI mode, I could no longer input anything, and when pressing the start button, a message appeared TOOL ZERO POINT VARIOUS INCORRECT
Please, help