Re-reading your original post, I realised that you said that only after the first run did you add in the G71 Z9.1 and M53.
Not absolutely certain of this statement... but I think you MUST have one of the retract M codes in your drilling cycle for the machine to know how to retract from the end point of the hole.
As for why the machine never gave you an alarm on the 1st run? No idea! I have seen a few examples of programs that kick up a fuss when running at 100% but are OK on single block... go figure.
Might be one of those issues where you have to accept the requirements and move on.
Regards
Brian. |