Siemens SINUMERIK 840D sl Programming Manual page 460
Job planning
Hide thumbs
Also See for SINUMERIK 840D sl:
- Function manual (2184 pages) ,
- Programming manual (1334 pages) ,
- Commissioning manual (1102 pages)
Table of Contents
Advertisement
Motion synchronous actions
10.4 Actions in synchronized actions
Example of adaptive control (additive)
Additive influence on the programmed feedrate
A programmed feedrate is to be controlled additive using the current of the X axis (infeed
axis):
The feedrate should only vary by +/- 100 mm/min and the current fluctuates by +/-1A around
the working point of 5A.
1. Polynomial definition
Determination of the coefficients
y = f(x) = a
a
= -100mm/1 min A
1
a
= -(-100)*5 =500
0
a
= a
2
Upper limit = 100
Lower limit = -100
This means:
FCTDEF(1,-100,100,500,-100,0,0)
2. Activate AC control
ID=1 DO SYNFCT(1,$AC_VC,$AA_LOAD[x])
;Read the current axis load (% of the max. drive current) via $AA_LOAD[x],
;calculate the path feedrate override with the polynomial defined above.
10-34
+ a
x + a
x
+ a
2
0
1
2
3
= 0 (no square and cubic component)
3
x
3
Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
Job planning
Advertisement
Table of Contents
