Specifications

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CONCISE GUIDE FANUC 30
3.5 “G4” AXIS PAUSE TIME
The G4 function controls a machine axes pause during the running of a cycle for a time, indicated in
seconds, that can be programmed with address U.
The G4 can be thus programmed:
N12 …….
N13 G4 U1
N14 …….
Where :
• G4 => Activates the pause of the machine axes.
• U => Defines the time of the axes pause in seconds.
Minimum value 0.001 seconds, maximum value 9999.999 seconds.
Function G4 is self deleting therefore it automatically disables in the block following the one where it is
located.
Always indicating the pause in seconds, it is also possible to have the pause in number of revolutions by
using this formula :
Seconds of pause for one spindle revolution = 60 / S (spindle speed in rpm)
Example:
If the spindle rotates at 300 rpm, the pause time for one revolution will be 60 / 300 = 0.2 seconds
If a pause is required equal to 3 rpm, write : G4 U0.6 (0.2 seconds x 3 rpm)