Mastercam helix on heidenhain

[Smrkoul]

Hi,
i have problem with helix entry move in Heidenhain iTNC530. I used dynamic core milling, with helix entry and this is part of h-code generated by postprocessor:

7420 L X+79.743 Y+57.875 R0
7430 CC X+77.882 Y+54.334
7440 C X+80.982 Y+56.863 DR- R0
7450 L X+81.335 Y+56.430 R0
7460 CC X+78.235 Y+53.902
7470 C X+81.572 Y+56.108 DR- R0
7480 CC X+82.406 Y+56.659
7490 CP IPA7.249 Z-0.313 DR+ R0
7500 CC X+82.406 Y+56.659
7510 CP IPA3.246 Z-0.304 DR+ R0
7520 L X+81.688 Y+55.963 R0
7530 CC X+78.806 Y+53.189

My post generate helix "properly", but when i start simulation on machine i have error message. "incorrect block". I have another helix at the beginning of program and that passed simulation without any problem.
Where is the problem? tolerances, control definition?
I bypass problem by dont allow helix move in control definition, so postprocessor generates only lines and arcs.

Weeks later i have another problem with helical movement in 2D high speed toolpath - dynamic milling. I turned on microlift on back movement and when tool goes back into cut, mastercam generates helical movement. So i have IPA line in generated code (even with not allowed helical movement in control def.!) and this program dont passed through simulation on machine.
Thanks for your help.