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Fusion 640 Integrex Polar Coordinate Interpolation Issues

JSL_MFG

Plastic
Joined
Apr 24, 2022
Hey guys, long-time reader, first-time poster here.

I bought a 2001 Mazak Integrex 100-IISY, and I'm now ready to get it running but cannot seem to get around a huge issue with the G12.1 - polar coordinate interpolation command. The machine arrived with a dead battery, and we had to use a previous backup on the HD to get the machine functional. I had Mazak do it themselves since I didn't want to cause more harm than good on such an old control. Everything seemed to be working great until I got the whole thing set up and started single blocking through a program.

The machine does have the option installed, at least that's what the options page shows under diagnose. I confirmed with my local Mazak applications engineer that the code we're trying to use is fine, and even threw a sample code straight out of the manual into the machine without any success.

The alarm I keep getting is 708 - illegal g code. Which from what I was told, basically means that the control probably doesn't have that option enabled, or a prerequisite code is not being used. We also get this alarm with G122, and this happens in MDI & memory modes. I'm now in a huge bind, and everybody is stumped.

I've confirmed that the control is not set to t-32 G-code language ( parameter 9 bit 2 & 3) and Mazak also confirmed that we're set to the right parameters. Unfortunately, we cannot work around the polar coordinate interpolation, since the parts we're making would actually overtravel the y axis. We just have to use the c axis instead of the y. Has anybody ever seen this before?
 

chad883

Cast Iron
Joined
Jan 12, 2012
Location
indiana, usa
I had this issue also. Option 19 polar input is on, but 20 cylindrical is not on. I have worked around this by changing the parameter in the program to switch back and forth between T-32 mode and Normal mode.

If you go into T-32 mode polar will work. The polar program will look like it is for a mill. Then after polar is finished, I switch back to normal mode.

Here is a sample

T1212.11B6
(SUB 3/16 MILL)
G98
M300
M518
G112M200
G110C2
G112M203S8000

(T-32 MODE)
G10L50 (THIS ENABLES PARAMETER WRITE)
N1016R240 (THIS CHANGES TO T-32 MODE)
G11 (THIS CANCELS PARAMETER WRITE)

G0 Z-.15
X0.
G1Z.15F20.
G0Z-.15
G0C0.
G17UH
M8
G12.1 (POLAR ON)
G1Z-.05F100.
X0.C.0
G1Z.125 F50.0
Y.235 F20.0
X-0.24
Y-.235
X.24
Y.235
X-.24
X0.Y.0F50.
Z-.05
G13.1(POLAR OFF)
G0X6.Z-4.
M1

N1004
T0606.11B18
(SUB 1/16 MILL)
M300
G112M200
G110C2
G112M203S8000
G0X0.
C0
G12.1 (POLAR ON)
G1Z-.05F100.
X0.2091Y0.2041
G1Z.125 F50.0
G41X0.2925Y0.3275 F3.0
X-0.2925
G3X-0.3325Y0.2875I0.J-0.04
G1Y-0.2875
G3X-0.2925Y-0.3275I0.04J0.
G1X0.2925
G3X0.3325Y-0.2875I0.J0.04
G1Y0.2875
G40X0.2991Y0.2541
G0Z-.05
G0 Z-.15
G13.1
G0C0.

(STANDARD MODE)
G10L50 (THIS ENABLES PARAMETER WRITE)
N1016R248 (THIS CHANGES BACK TO NORMAL MODE)
G11 (THIS CANCELS PARAMETER WRITE)

X4.
G28V0.
G28U0.
G112M205
G112M202
G111
M302
M202
M1
 

JSL_MFG

Plastic
Joined
Apr 24, 2022
That's a really interesting approach.

Do you know if option 20 is the issue? I just bought a new copy of the option software from Mazak, they say that might fix the issue. It was only $430 and I figured it was worth a shot. I'm now wondering if option 20 is needed for this instead though. In theory, it's not, but I could be wrong.


EDIT: Just tried your approach, and it did in fact work. Thank you so much for your help.
 

chad883

Cast Iron
Joined
Jan 12, 2012
Location
indiana, usa
I figured this out a few years ago. IIRC Mazak told me option 20 was required, but I could be wrong. I just started playing around and figured this out. I already had some programs, and do not like the 1 line G7X cycles so I would not stay in T-32 mode.
 








 
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