Dwell Time: G4 - Siemens SINUMERIK 802D Programming And Operating Manual

10.3.15

Dwell Time: G4

Functionality
Between two NC blocks you can interrupt the machining process for a defined period by
inserting your own block with G4; e.g. for relief cutting.
Words with F... or S... are only used for times in this block. Any previously programmed
feedrate F or a spindle speed S remain valid.
Programming
G4 F...
G4 S...
Programming example
N5 G1 F3.8 Z-50 S300 M3
N10 G4 F2.5
N20 Z70
N30 G4 S30
N40 X...
Remark
G4 S.. is only possible if a controlled spindle is available (if the speed specifications are also
programmed via S...).
Cylindrical grinding
Programming and Operating Manual, 07/2009, 6FC5398-4CP10-2BA0
; Dwell time in seconds
; Dwell time in spindle revolutions
;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
10.3 Axis movements
273