Multiple Feedrate Values In One Block (F - Siemens SINUMERIK 840Di sl Programming Manual

Feedrate Control and Spindle Motion
7.14 Multiple feedrate values in one block (F.., ST=.., SR=.., FMA.., STA=.., SRA=..)
Parameters
G25
G26
S S1 S2=...=...
Range of values
Caution
A spindle speed limitation programmed with G25 or G26 overwrites the speed limitations in
the setting data and thus remains stored after the end of the program.
Examples
N10 G26 S1400 S2=350 S3=600
Maximum possible spindle speed limitations within a block
LIMS[1]=500 LIMS[2]=600
LIMS[3]=700 LIMS[3]=800
G25 S1=1 S2=2 S3=3
G26 S1=1000 S2=2000 S3=3000
7.14 Multiple feedrate values in one block (F.., ST=.., SR=.., FMA.., STA=..,
SRA=..)
Function
The "Several feedrates in one block" function can be used independent of external analog
and/or digital inputs to activate
• Different feedrates of an NC block,
• dwell time, and
• Retraction
in synchronism with the movement.
The HW input signals are combined in one input byte.
314
Lower spindle speed limitation
Upper spindle speed limitation
Minimum or maximum spindle speed
Value assignment for the spindle speed can be between
rpm ... 9999 9999.9 rpm.
;Upper speed limitation for master spindle,
;spindle 2 and spindle 3
;Master spindle speed limitations
;Maximum for 4 spindles within a block
; Lower and upper speed limit
;Maximum of 3 spindle limitations within a block
Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
Fundamentals