HEIDENHAIN TNC 320 (340 551-01) - Manual (Page 120)

120 –˜pV"hhamV9˜pV"hhamV˜ pm›p¤’
6.3 Cont
our Appr
oac
h
and Depar
tur
e „ m=˜zpam›˜ ˜
^F˜zp’a›apm˜ ˜daF’˜p¤›’a=F˜pO˜›^F˜4pm›p¤˜"m=˜F’¤d›’˜Oph˜©p¤˜
amz¤›˜am˜›^F˜ ˜*dp4c˜O˜›^F˜ ˜*dp4c˜"d’p˜4pm›"am’˜"˜!˜"¨a’˜
4pp=am"›F:˜›^F˜ ˜§add˜Oa’›˜hp¦F˜›^F˜›ppd˜›p˜ ˜am˜›^F˜§pcamV˜
zd"mF:˜"m=˜›^Fm˜hp¦F˜a›˜›p˜›^F˜Fm›FF=˜=Fz›^˜am˜›^F˜›ppd˜"¨a’
Polar coordinates
p¤˜4"m˜"d’p˜zpV"h˜›^F˜4pm›p¤˜zpam›’˜Op˜›^F˜Opddp§amV˜"zzp"4^—
=Fz"›¤F˜O¤m4›apm’˜p¦F˜zpd"˜4pp=am"›F’9
„ ˜˜*F4phF’˜ ˜
„ ˜˜*F4phF’˜ ˜
„ ˜ ˜*F4phF’˜ ˜
„ ˜ ˜*F4phF’˜ ˜
„ ˜ ˜*F4phF’˜ ˜
FdF4›˜*©˜’pO›˜cF©˜"m˜"zzp"4^˜p˜=Fz"›¤F˜O¤m4›apm:˜›^Fm˜zF’’˜›^F˜
p"mVF˜˜cF©
Radius compensation
^F˜›ppd˜"=a¤’˜4phzFm’"›apm˜a’˜zpV"hhF=˜›pVF›^F˜§a›^˜›^F˜Oa’›˜
4pm›p¤˜zpam›˜ ˜am˜›^F˜ ˜*dp4c˜^F˜ ˜*dp4c’˜"¤›ph"›a4"dd©˜
=a’4"=˜›^F˜›ppd˜"=a¤’˜4phzFm’"›apm
pm›p¤˜"zzp"4^˜§a›^p¤›˜"=a¤’˜4phzFm’"›apm9˜O˜©p¤˜zpV"h˜›^F˜
˜*dp4c˜§a›^˜¬:˜›^F˜ ˜§add˜4"d4¤d"›F˜›^F˜›ppd˜z"›^˜Op˜"˜›ppd˜
"=a¤’˜pO˜¬˜hh˜"m=˜"˜"=a¤’˜4phzFm’"›apm˜M˜^F˜"=a¤’˜
4phzFm’"›apm˜a’˜mF4F’’"©˜›p˜’F›˜›^F˜=aF4›apm˜pO˜4pm›p¤˜"zzp"4^˜
"m=˜=Fz"›¤F˜am˜›^F˜ — ˜˜"m=˜ — ˜ ˜O¤m4›apm’
Abbreviation Meaning
zzp"4^
Fz"›¤F
amF
a4dF˜
"mVFm›a"d˜|’hpp›^˜4pmmF4›apm}
ph"d˜|zFzFm=a4¤d"}
^F˜ ˜=pF’˜mp›˜4^F4c˜§^F›^F˜›^F˜zpV"hhF=˜
4pm›p¤˜§add˜*F˜="h"VF=˜§^Fm˜hp¦amV˜Oph˜›^F˜"4›¤"d˜
zp’a›apm˜›p˜›^F˜"¤¨ada"©˜zpam›˜ ˜’F˜›^F˜›F’›˜V"z^a4’˜›p˜
’ah¤d"›F˜"zzp"4^˜"m=˜=Fz"›¤F˜*FOpF˜F¨F4¤›amV˜›^F˜
z"›˜zpV"h
a›^˜›^F˜ ˜:˜ ˜˜"m=˜ ˜ ˜O¤m4›apm’:˜›^F˜
˜hp¦F’˜›^F˜›ppd˜Oph˜›^F˜"4›¤"d˜zp’a›apm˜›p˜›^F˜
"¤¨ada"©˜zpam›˜ ˜"›˜›^F˜OFF=˜"›F˜›^"›˜§"’˜d"’›˜
zpV"hhF=˜a›^˜›^F˜ ˜ ˜O¤m4›apm:˜›^F˜ ˜
hp¦F’˜›p˜›^F˜"¤¨ada"©˜zpam›˜ ˜"›˜›^F˜OFF=˜"›F˜
zpV"hhF=˜§a›^˜›^F˜ ˜*dp4c˜O˜mp˜OFF=˜"›F˜a’˜
zpV"hhF=˜©F›˜*FOpF˜›^F˜"zzp"4^˜*dp4c:˜›^F˜ ˜
VFmF"›F’˜"m˜Fp˜hF’’"VF