HEIDENHAIN iTNC 530 (340 49x-03) ISO programming - Manual (Page 456)

456 8 Programming: Cycles
8.1
0 Special Cy
cles
8.10 Special Cycles
DWELL TIME (Cycle G04)
This causes the execution of the next block within a running program
to be delayed by the programmed dwell time. A dwell time can be
used for such purposes as chip breaking.
Effect
The cycle becomes effective as soon as it is defined in the program.
Modal conditions such as spindle rotation are not affected.
8 Dwell time in seconds: Enter the dwell time in
seconds.
Input range: 0 to 3600 s (1 hour) in steps of 0.001 seconds
Example: NC block
N74 G04 F1.5 *