Multiple Feedrate Values In One Block - Siemens SINUMERIK 840D Function Manual

"DRY" is displayed in the operator panel front status bar to indicate an active dry run feedrate
if:
● Selection took place during the program stop at the end of a block or
● The machine data MD10704 $MN_DRYRUN_MASK was set to "1" during the program
execution
Mode of operation of the dry run feedrate
The mode of operation of the dry run feedrate entered in SD42100 can be set via the setting
data:
SD42101 $SC_DRY_RUN_FEED_MODE
Value
0
1
2
3 - 9
10
11
12
5.4.5

Multiple feedrate values in one block

Function
The function "Multiple feedrate values in one block" can be used to activate six different
feedrate values of an NC block, a dwell time or a retraction motion-synchronously, depending
on the external digital and/or analog inputs.
When the input for the sparking out time or retraction path is activated, the distance-to-go for
the path axes or the particular single axis is deleted and the dwell time or retraction is started.
The retraction is started within an IPO cycle.
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA
Meaning
The programmed feedrate is compared to the dry run feedrate in SD42100 and then tra‐
versing is performed with the higher of the two feedrates (default setting).
The programmed feedrate is compared to the dry run feedrate in SD42100 and then tra‐
versing is performed with the lower of the two feedrates.
The dry run feedrate entered in SD42100 takes effect directly, irrespective of the program‐
med velocity.
Reserved
As for configuration 0, except for thread cutting (G33, G34, G35) and tapping (G331, G332,
G63). These functions are executed as programmed.
As for configuration 1, except for thread cutting (G33, G34, G35) and tapping (G331, G332,
G63). These functions are executed as programmed.
As for configuration 2, except for thread cutting (G33, G34, G35) and tapping (G331, G332,
G63). These functions are executed as programmed.
V1: Feedrates
5.4 Feedrate control
165