[PEDRORUIZCASTRO]

Hello partners, we have a new cnc machine(ycm vmc 60A) with Fanuc OM, the problem is that when we do the zero return, the Z axis don´t stop when the machine coordinates are 0, and the micro are well, might be a parameter problem but we dont know how to solve it.. please help!

[ahmed4040]

Hello ... what are the values of machine paameters 1320 & 1321 ??

[PEDRORUIZCASTRO]

I searched these parameters but my machine doesnt have these parameters, in fact i dont know what means each parameters of my machine i am looking for these too :/

[NoGoodNolan]

does the machine have a automatic slow down when it gets close to Z on zero return? some have a 2 switch limit switch. one being slow down the other to stop the axis from traveling further.
if it has limit switches on the axis i would check that aswell..

also does it eventually stop but is in the wrong place? does it throw a alarm?

[zavateandu]

if the machine don't stop when the machine coordinates are 0 ,it should generate an alarm after that:soft overtravel alarm or overtravel alarm(the hard limit).
which one you get when the machine stops?

[PEDRORUIZCASTRO]

Exactly, the machine generates an alarm overtravel, i thought they were the cams of the limit switches but are well, i think should be some parameter wrong but i dont know

[PEDRORUIZCASTRO]

yes, the machine have a automatic slow down when it gets close to Z on zero return, but when it cross the 0, it continues until it touch the cam(+0,509mm) and generate an overtravel alarm, the cams are well so i dont know what could be, it never stops, only stops because it touch the cam and it cant follow :/

[tetbong02]

reset and make a new zero position. on parameter 1815... just check it if i am right...param 1815..

[zavateandu]

hey guys ,are you reading the description of his machine??????
please read carefully first and than give solution.
First of all he has FANUC 0M and he has no 1815 parameter or 1320 or 1321----dah???

the solution is simple man:make PWE=1 and ignore the alarm or if you press the can+reset will make it go away.
After that ,go to parameter 702,this is the limit on + for Z axes and must be between 1000-5000.
You must make this greater ,i use to do it 999999.
After , go away with the Z axes from the cam ,about 100mm ,and do a zero return again.
you will see is ok now.
go back to parameter 702 and do it back as you found it
make PWE=0
you are done!

[tetbong02]

hey guys ,are you reading the description of his machine??????
please read carefully first and than give solution.
First of all he has FANUC 0M and he has no 1815 parameter or 1320 or 1321----dah???

the solution is simple man:make PWE=1 and ignore the alarm or if you press the can+reset will make it go away.
After that ,go to parameter 702,this is the limit on + for Z axes and must be between 1000-5000.
You must make this greater ,i use to do it 999999.
After , go away with the Z axes from the cam ,about 100mm ,and do a zero return again.
you will see is ok now.
go back to parameter 702 and do it back as you found it
make PWE=0
you are done!

ok..... so compare that parameter.... and dont make a help again....

[PEDRORUIZCASTRO]

zavateandu:Man you are the boss! thank you, I did it and now the problem is resolved, I take this thread to ask how do changing tool, what I do is make the zero return and run the program, for example:
%
O1111
N1 G49 G64 G17 G80 G90 G40 G99 G0
N2 T0002 M6
N3 X-35. Y10. M3 S1000
N4 G43 Z5. H1
N5 G1 G94 Z0 F1000.
X85 N6.
N7 Z5. F4000.
N8 T0006 M6
N9 G0 X60. Y-15. M3 S1000
Z5 N10 G43.
N11 G1 Z-10. F1000.
N12 G3 X50. Y-5. I-10. J0
N13 G1 X0
N14 G2 X-5. Y0 I0 J5.
N15 G1 Y20.
G2 N16 X0 Y25. I5. J0
N17 G1 X50.
N18 G2 X55. Y20. I0 J-5.
N19 G1 Y0
N20 G3 X65. Y-10. I10. J0 F4000.
Z5 N21 G1.
N22 M30
%
It do it perfect but when it comes to the change of the second tool, I get the alarm "1003 act after LS45",could you help me again please? THANK YOU FOR THE INFO AGAIN!!

[PEDRORUIZCASTRO]

tetbong02: thank you for the reply but my machine doesnt have this parameter :/

[zavateandu]

zavateandu:Man you are the boss! thank you, I did it and now the problem is resolved, I take this thread to ask how do changing tool, what I do is make the zero return and run the program, for example:
%
O1111
N1 G49 G64 G17 G80 G90 G40 G99 G0
N2 T0002 M6
N3 X-35. Y10. M3 S1000
N4 G43 Z5. H1
N5 G1 G94 Z0 F1000.
X85 N6.
N7 Z5. F4000.
N8 T0006 M6
N9 G0 X60. Y-15. M3 S1000
Z5 N10 G43.
N11 G1 Z-10. F1000.
N12 G3 X50. Y-5. I-10. J0
N13 G1 X0
N14 G2 X-5. Y0 I0 J5.
N15 G1 Y20.
G2 N16 X0 Y25. I5. J0
N17 G1 X50.
N18 G2 X55. Y20. I0 J-5.
N19 G1 Y0
N20 G3 X65. Y-10. I10. J0 F4000.
Z5 N21 G1.
N22 M30
%
It do it perfect but when it comes to the change of the second tool, I get the alarm "1003 act after LS45",could you help me again please? THANK YOU FOR THE INFO AGAIN!!

this is not a Fanuc alarm,is a builder alarm is a little different to trace it.i need the ladder print if you have one or electrical daigram.if you not have a print of the ladder you can make photos of each page and put it in a winrar archive and send it to me,also do a scan of the electrical book if you have.
my email is :[email protected]
if i have these i also can help you in the future with the alrms and problems so better do it for the future support.

[hangslot]

please start up the control while depressing the button "P" "Q" and "Can".
Keep them depressing until the control has started completely, after this, try carefully....

[PEDRORUIZCASTRO]

this is not a Fanuc alarm,is a builder alarm is a little different to trace it.i need the ladder print if you have one or electrical daigram.if you not have a print of the ladder you can make photos of each page and put it in a winrar archive and send it to me,also do a scan of the electrical book if you have.
my email is :[email protected]
if i have these i also can help you in the future with the alrms and problems so better do it for the future support.

Thank you very much, but unfortunately we havent the books of the machine because It was ceded by another company that owed us money and did not give the books..i´m looking for the books in internet.
Again, thank you, you've helped me a lot! if i find the books i will tell you