Siemens CU240B-2 User Manual

Free Function Blocks
Function diagrams
2-611
© Siemens AG 2011 All Rights Reserved SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 01/2011
Fig. 2-101 7226 – PLI (scaling polyline)
- 7226 -
Function diagram
87654321
FP_7226_97_51.vsd
Arithmetic function blocks
G120 CU230P-2
13.12.2010 V4.4
PLI (scaling polyline)
PLI 0
PLI 1
r20379
PLI 1 output Y
PLI 1 RTG
5 ... 9999
p20382 (9999)
PLI 1 RunSeq
0 ... 32000
p20383 (990)
PLI 1 X-coordinate
-340.28235E36 ... 340.28235E36
p20380 (0.0000)
PLI 1 Y-coordinate
-340.28235E36 ... 340.28235E36
p20381 (0.0000)
PLI 1 input X
(0)
p20378
Yn
Xn
A18/B18
A19/B19
A1/B1
A0/B0
X
Y
r20373
PLI 0 output Y
PLI 0 RTG
5 ... 9999
p20376 (9999)
PLI 0 RunSeq
0 ... 32000
p20377 (980)
PLI 0 X-coordinate
-340.28235E36 ... 340.28235E36
p20374 (0.0000)
PLI 0 Y-coordinate
-340.28235E36 ... 340.28235E36
p20375 (0.0000)
PLI 0 input X
(0)
p20372
Yn
Xn
A18/B18
A19/B19
A1/B1
A0/B0
X
Y
XY
XY
Breakpoint 0 (A0/B0 = p20374[0]/p20375[0]) ... Breakpoint 19 (A19/B19 = p20374[19]/p20375[19])
Breakpoint 0 (A0/B0 = p20380[0]/p20381[0]) ... Breakpoint 19 (A19/B19 = p20380[19]/p20381[19])
Note:
This function block randomly adapts output variable Y to input variable X by means of up to 20 breakpoints in 4
quadrants.
Interpolation is carried out linearly between the breakpoints. Outlying the area A0 to A19, the characteristic curve runs horizontally.
During configuration, you must ensure that the values of A0 to A19 are arranged in ascending order. Otherwise the
values at the output will not be correct. The values B0 to B19 can be selected at random, i.e., independently of the
previous value.
If breakpoints are not needed (e.g., A16/B16 and higher), the following values of the X- and Y-coordinates (A16/B16 to
A19/B19) must be assigned the same values as A15/B15.

Siemens CU240B-2 Specifications

General

Brand	Siemens
Model	CU240B-2
Category	Inverter
Language	English