Siemens sinumerik 840d Programming Manual page 165

04.00
5
840D 840D
NCU 571 NCU 572
NCU 573
Programming
POLY PO[X]=(x
Explanation
POLY
PO[]=(...,...,...)
x , y , z
e e e
a , a
2 3
PL
Example
N10 G1 X... Y... Z... F600
N11 POLY PO[X]=(1,2.5,0.7) ->
-> PO[Y]=(0.3,1,3.2) PL=1.5
N12 PO[X]=(0,2.5,1.7) PO[Y]=(2.3,1.7) PL=3
...
N20 M8 H126 ...
N25 X70 PO[Y]=(9.3,1,7.67) PL=5
N27 PO[X]=(10.2.5) PO[Y]=(2.3)
N30 G1 X... Y... Z.
...
 Siemens AG 2000. All rights reserved
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) − 04.00 Edition
810D 840Di
,a ,a ) PO[Y]=(y
e1 2 3 e1
5.4 Polynomial interpolation, POLY
,b ,b ) PO[Z]=(ze1,c
2 3
Activation of polynomial interpolation with
a block containing POLY.
End points and polynomial coefficients
Specification of end position for relevant
axis; value range as for path dimension
Coefficients a
their value; value range as for path
dimension. The last coefficient in each case
can be omitted if it equals zero.
Length of parameter interval over which the
polynomials are defined (definition range of
function f(p)). The interval always starts at 0.
p can be set to values between 0 and PL.
Theoretical value range for PL: 0.0001 ... 99
999.9999. The PL values applies to the
block in which it is programmed. PL=1 is
applied if no PL value is programmed.
Polynomial interpolation ON
Mixed settings for axes
No PL value programmed; PL=1 applies
Polynomial interpolation OFF
Special Motion Commands
,c ) PL=n
2 3
and a are programmed with
2 3
5
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