Polar interpolation problem

[Bergen CNC]

I'm about to threadmill a part here, the program is made in Gibbs and the machine is an puma mx2500lst.

The problem is that when reading G12.1 I get this alarm: 145 Illegal command G112/G113

G28U0.W0.V0.
M289
M101
M170
M06T2300
T19000
T23023
M101
M35
G00G98Y0.Z5.C90.M26
G97S200M33
G54
G00C0.
G17
M07
C0.
X46.
M88
G12.1
G01X0.C23.F5000.
M98P6
G01Z5.F5000.
G13.1
M90

[cnc-king]

looks like your C value after the G12.1 is incorrect. the C value after the
G12.1 becomes a linear dimension, not degrees. you have to post the subprogram 6 so some one can analyse the rest of the program, cause your mistake may be in there.

[Bergen CNC]

Here's the sub-program:

O6
( SUB NUMBER, 6 )
G01W-29.215F200.
G42U-7.778H3.889F5000.
U.317H.333F200.
G02U7.461H2.244W.215R4.223
U12.931H-6.466W.477R6.466
U-12.931H-6.465W.478R6.466
U-12.931H6.465W.477R6.466
U12.931H6.466W.477R6.466
U12.931H-6.466W.477R6.466
U-12.931H-6.465W.478R6.466
U-12.931H6.465W.477R6.466
U12.931H6.466W.477R6.466
U7.284H-1.124W.182R6.466
U3.637H-3.955W.215R4.223
G01U-.113H-.364
G40U-10.808H-1.023F5000.
Z5.
M99

[Daewoosan]

You can only interpolate with X and C when in G12.1. Try posting Gibbs without the G12.1, in other words, one line at a time. The program will be long, but it should work. Keep in mind, once you get outside of a 6" diameter bolt circle the accuracy can be questionable.