Dwell Time: G4 - Siemens SINUMERIK 808D User Manual

See the following illustration for comparison of the G60 and G64 velocity behavior:
11.7.3

Dwell time: G4

Fu n ctionality
Between two NC blocks, you can interrupt the machining for a defined time by inserting a se parate block with G4; e.g. for
relief cutting.
The words with F... or S... are only used in this block for the specified time. Any previously programmed feedrate F or a
spindle speed S remain valid.
Programming
G4 F... ; Dwell time in seconds
G4 S... ; Dwell time in spindle revolutions
Programming example
N5 G1 F200 Z-50 S300 M3
N10 G4 F2.5
N20 Z70
N30 G4 S30
N40 X60
M30
N o te
G4 S.. is only possible if a controlled spindle is available (if the speed specifications are also programmed via S...).
108
; Feed F; spindle speed S
; Dwell time 2.5 seconds
; Dwelling 30 revolutions of the spindle, corresponds at S=300
rpm and 100% speed override to: t=0.1 min
; Feed and spindle speed remain effective
Programming and Operating Manual (Milling)
6FC5398-4DP10-0BA6, 09/2017