We have an old Pega 344 with Fanuc-P system 6m. Unfortunately V-code was forgotten (when I was writing the last Ux / Vx macro) and machine jammed When I was doing

program check. There is now MCRM (macro data is being read) blinking in a screen when it is trying to do program check but it just can't finish it.

Is there any safe way to cancel program check? Reset button/program check button/stop button/mode switch in control panel won't do anything and I have been told that you never should turn power off in this kind of situation.

Any help would be greatly appreciated.