Output Of Manipulated Variables - Siemens SINUMERIK 840D Description Of Functions

02.99
4.5

Output of manipulated variables

4.5.1 Characteristics compensation
Area adaptation
5462 AREA_FACTOR_POS_OUTPUT
Piston surface adaptation factor, positive
Unit: Default:
% 100.0
5463 AREA_FACTOR_NEG_OUTPUT
Piston surface adaptation factor, negative
Unit: Default:
% 100.0
 Siemens AG 2000. All rights reserved
SINUMERIK 840D/SIMODRIVE 611 digital Descr. of Functions HLA Module (FBHLA) – 04.00 Edition
Various non-linear effects of valve or drive can be compensated by means of
characteristics. The characteristics are cascaded so that they can be set sepa-
rately.
Minimum: Maximum:
50.0 200.0
Minimum: Maximum:
50.0 200.0
In order to compensate the direction-dependent controlled-system gain on dif-
ferential cylinders, a characteristic with a gradient that is variable as a function
of direction has been implemented. Fig. 4-13 shows an example of this charac-
teristic and the mode of action of the associated machine data. In practice, only
one of the two gradients is weighted with a factor other than 100%. Normally, it
is the gradient that causes the cylinder piston to travel out that is weighted with
a factor of less than 100% (see also Section 2.3.1 and Appendix A).
Fig. 4-13 Example of piston surface adaptation characteristic
4 Firmware Drive Functions
4.5 Output of manipulated variables
Relevant for:
HLA
Data type:
FLOAT
Relevant for:
HLA
Data type:
FLOAT
Output
100%
MD 5462
–100%
0
–100%
– MD 5463
–200%
Cross ref.: –
Protection level:
3/3
Effective:
Immediately
Cross ref.: –
Protection level:
3/3
Effective:
Immediately
Input
100%
4-125