Example - Siemens SINUMERIK 840D sl Function Manual

W4: Grinding-specific tool offset and tool monitoring
18.5 Constant grinding wheel peripheral speed (GWPS).
18.5.4

Example

A constant grinding wheel peripheral speed is to be used for grinding tools T1 and T5. T1 is
the active tool.
Data of tool T1 (peripheral grinding wheel)
$TC_DP1[1,1] = 403
$TC_DP3[1,1] = 300
$TC_DP4[1,1] = 50
$TC_DP12[1,1] = 0
$TC_DP13[1.1] =0
$TC_DP21[1.1] =300
$TC_DP22[1.1] =400
$TC_TPG1[1] = 1
$TC_TPG8[1] = 0
$TC_TPG9[1] = 3
Data of tool T5 (inclined grinding wheel)
$TC_DP1[5,1] = 401
$TC_DP3[5,1] = 120
$TC_DP4[5,1] = 30
$TC_DP12[5,1] = 0
$TC_DP13[5,1] =0
$TC_DP21[5,1] =100
$TC_DP22[5,1] =150
$TC_TPG1[5] = 2
$TC_TPG8[5] = 45
$TC_TPG9[5] = 3
Programming
Program code
N20 T1 D1
N25 S1=1000 M1=3
N30 S2=1500 M2=3
...
N40 GWPSON
N45 S[$P_ATPG[1]]=60
...
N50 GWPSON(5)
N55 S[$TC_TPG1[5]]=40
...
N60 GWPSOF
872
;tool type
;length1
;length2
;wear length 1
;wear length 2
;base length 1
;base length 2
;spindle number
;angle of inclined wheel
;parameter no. for radius calculation
;tool type
;length1
;length2
;wear length 1
;wear length 2
;base length 1
;base length 2
;spindle number
;angle of inclined wheel
;parameter no. for radius calculation
Comment
; select T1 and D1
; 1000 rpm for spindle 1
; 1500 rpm for spindle 2
; activate GWPS for active tool T1
; set GWPS for active tool to 60 m/s
→ n=1909.85 rpm
; activate GWPS for tool 5 (spindle 2)
; set GWPS for spindle 2 to 40 m/s
→ n=1909.85 rpm
; deactivate GWPS for active tool
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions