Control Velocity As A Function Of Normalized Path - Siemens SINUMERIK 840Di sl Function Manual
Synchronized actions, ncu system software
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Also See for SINUMERIK 840Di sl:
- Commissioning manual (632 pages) ,
- Programming manual (560 pages) ,
- Operating manual (470 pages)
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a3 = 0 (not a square component)
Upper limit = 100
Lower limit = -100
FCTDEF(
With the values determined above, the polynomial is defined as follows:
FCTDEF(1, -100, -100, 100, 200, 0, 0)
The following synchronized actions can be used to activate the adaptive control function
for the axis feedrate:
ID = 1 DO SYNFCT (1, $AA_VC[X], $A_INA[1])
or for the path feedrate:
ID = 2 DO SYNFCT(1, $AC_VC, $A_INA[1])
5.3.3
Control velocity as a function of normalized path
Multiplicative adaptation
The normalized path is applied as an input quantity: $AC_PATHN.
0: At block start
1: at block end
Variation quantity $AC_OVR must be controlled as a function of $AC_PATHN according to a
3rd order polynomial. The override must be reduced from 100 to 1% during the motion.
Synchronized actions
Function Manual, 11/2006, 6FC5397-5BP10-2BA0
Polynomial No.
LLIMIT
ULIMIT
a
0
a
1
a
2
a
)
3
5.3 Examples of adaptive control
;
y for x = 0
;
Lead
;
square component
;
cubic component
Examples
137
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