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

7.14

Constant grinding wheel peripheral speed (GWPSON, GWPSOF)

Function
With the function "Constant grinding wheel peripheral speed" (=GWPS), you can set the
grinding wheel speed such that, taking account of the current radius, the grinding wheel
peripheral speed remains constant.
Programming
GWPSON(T No.)
Or
GWPSOF(T No.)
S...
S1...
Parameters
GWPSON(T No.)
GWPSOF(T No.)
S...
S1...
GWPS
Example of grinding tools with constant grinding wheel peripheral speed
A constant grinding wheel peripheral speed is to be used for grinding tools T1 and T5.
T1 is the active tool.
N20 T1 D1
N25 S1=1000 M1=3
N30 S2=1500 M2=3
...
N40 GWPSON
N45 S1 = 60
...
N50 GWPSON(5)
N55 S2 = 40
...
N60 GWPSOF
N65 GWPSOF(5)
Fundamentals
Programming Manual, 10.2004 Edition, 6FC5 298-7AB00-0BP1
7.14 Constant grinding wheel peripheral speed (GWPSON, GWPSOF)
Select constant grinding wheel peripheral speed (GWPS)
It is only necessary to specify the T number if the tool with
this T number is not active.
Deselect GWPS; it is only necessary to specify the T number if
the tool with this T number is not active.
Program GWPS
S...: PWGS for master spindle; S1...: PWGS for spindle 1
Peripheral speed value in m/s or ft/s
The GWPS can only be selected for grinding tools (types 400-
499).
;Select T1 and D1
;1000 rpm for spindle 1
;1500 rpm for spindle 2
;Selection of GWPS for active tool
;Set GWPS for active tool to 60 m/s
;GWPS selection for tool 5 (2nd spindle)
;Set GWPS for spindle 2 to 40 m/s
;Deactivate GWPS for active tool
;Switch off GWPS for tool 5 (spindle 2)
Feedrate Control and Spindle Motion
7-41