Specifications
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 CONCISE GUIDE FANUC 94 
Where: 
•  M203 => Back spindle clockwise rotation 
•  M204 => Back spindle anti-clockwise rotation 
•  M205 => Back spindle rotation stop 
•  B  => Back spindle axis movement co-ordinate 
6.2 “M” AUXILIARY FUNCTIONS 
The list below contains all the M functions used with the back-spindle option for many specific 
applications. For details on how to use these functions, consult the machine documentation. 
M10 
➪  Active air blow jaws cleaning (back spindle rotation active with open jaws) 
M11 
➪  air blow jaws cleaning not active (back spindle rotation not active with open jaws) 
M54 
➪ lance to eject piece forward (option) 
M55 
➪  lance to eject part backward (option) 
M59 
➪  activate collet chucks or jaws washing (option) 
M60 
➪  deactivate collet chucks or jaws washing (option) 
M70 
➪  activate synchronising between spindle and back spindle 
M71 
➪  activate synchronising between spindle and back spindle at a defined angle 
M72 
➪  deactivate synchronising between spindle and back spindle 
M100 
➪ temporary setting aside of active S 
M203  ➪  back spindle clockwise rotation 
M204 
➪ back spindle anti-clockwise rotation 
M205 
➪ back spindle stop 
M213 
➪  M203 with coolant delivery 
M214 
➪  M204 with coolant delivery 
M219 
➪  back spindle orientation angle is identified by S) 
M220 
➪  back spindle brake engaged 
M221 
➪  back spindle brake released 
M236 
➪ axis C disabled on back spindle 
M237 
➪ axis C enabled on back spindle 
M238 
➪  tool reset sensor in working position 
M239 
➪  tool reset sensor in home position 
M258 
➪  back spindle and sensor 2 orientated in work position 
M268 
➪  close self-centring chuck/back spindle collet chuck 
M269 
➪  open self-centring chuck/back spindle collet chuck 
M986 
➪  back spindle external part holder (shafts) 
M987 
➪ back spindle internal part holder (flanges) 










