Thread: CNC Tool Changer Inactive (ATC)

I tried a small program and ran on MDI and the problem remained the same,
I eliminated the G04 an IF statement but the alarm still turned on and the machine stopped.
I checked where program stops, and it stop on the another "G04" location:
G04
#3003=1
#102#5043-#5023
#103#102+#100
etc..
This location is earlier in the tool change program than the previous stop.

Yes I do have manuals for the Machine itself and for the Fanuc 18M.
So far I didin't find what G4 stand for, also I will try to find the system variables for you.

Thanks again for everyones help!

I am pretty baffled by this one .

Ok so your machine will alarm out with a P078 alarm with just a
#3003=0
#1132=0
M99
?
Try removing the #3003 and see what you get.

I am now confused that it alarms out on a different G4. I have only known G4 to be a dwell command on the Fanucs. I have never seen it without a value with it. G4X().

Attached is the definition for the PS078 alarm and you can get it without the GOTO statement and without the M-codes listed. Do you get this alarm with just a M99 command?

I am possibly starting to think that it could be #3003 but that doesn’t make any sense. Try running these by themselves one at a time in MDI to see if you can generate the alarm.
#3003=1
#3003=0
#1132=0
G4
G4X10

I was also doing some skimming through the parameter manual and I don’t think it’s related but can you tell me what the bits are set to in parameter 3201.

Sorry I got no direct answer for you. This alarm just doesn’t make sense and it alarms in random places. Macro’s can do funky things. If all else fails if you get me the system variable definitions I will rewrite your tool change program to see if we can eliminate the problem.

LMK,
Stevo