Constant Grinding Wheel Peripheral Speed (Gwpson, Gwpsof) - Siemens SINUMERIK 840D sl Programming Manual

Spindle motion

6.4 Constant grinding wheel peripheral speed (GWPSON, GWPSOF)

6.4 Constant grinding wheel peripheral speed (GWPSON, GWPSOF)
Function
The "Constant grinding wheel peripheral speed (GWPS)" function is used to set the grinding
wheel speed so that, taking account of the current radius, the grinding wheel peripheral speed
remains constant.
Syntax
GWPSON(<t no.>)
GWPSOF(<t no.>)
S.../S<n>=...
Significance
GWPSON:
GWPSOF:
<t no.>:
S...:
S<n>=... :
Note
A grinding wheel peripheral speed can only be programmed for grinding tools
(types 400 to 499).
Example
A constant grinding wheel peripheral speed is to be used for grinding tools T1 and T5.
T1 is the active tool.
Program code
N20 T1 D1
N25 S1=1000 M1=3
N30 S2=1500 M2=3
...
N40 GWPSON
N45 S1=60
...
N50 GWPSON(5)
N55 S2=40
...
106
Select constant grinding wheel peripheral speed
Deselect constant grinding wheel peripheral speed
It is only necessary to specify the T number if the tool with this T number is
not active.
Peripheral speed in m/s or ft/s for the master spindle
Peripheral speed in m/s or ft/s for spindle <n>
Note:
The peripheral speed specified with S0=... applies to the master spindle.
Comment
; Select T1 and D1.
; 1000 rpm for spindle 1
; 1500 rpm for spindle 2
; Selection of GWPS for active tool.
; Set GWPS to 60 m/s for active tool.
; GWPS selection for tool 5 (spindle 2).
; Set GWPS to 40 m/s for spindle 2.
Programming Manual, 09/2011, 6FC5398-1BP40-2BA0
Fundamentals