5function blocks – Lenze E94A User Manual
Page 567
Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05
567
5
Function blocks
5.163
L_TbCurve - characteristic function
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Special cases
• Jumps/discontinuities can be displayed by parameterising two successive x values the same
way. A jump is only valid if a valid pair of variates exists after that, otherwise the extrapolation
is executed starting from the last valid pair of variates.
[5-125] Example: Characteristic in the characteristic mode 0 (entire range) with jump
• If only one point X1 is defined in the negative range, X2 exists with the Lenze setting "0 %" as
valid point (X2 > X1) and both points form a line:
[5-126] Example: Characteristic in characteristic mode 0 (entire range) with only one defined point and X1 < 0
1
2
3
4
5
6
7
8
9
x
-130 %
-70 %
-70 %
80 %
0 %
0 %
0 %
0 %
0 %
y(x)
-150 %
-75 %
85 %
160 %
0 %
0 %
0 %
0 %
0 %
dnOut_n
dnIn_n
x1, y1
x3, y3
x4, y4
-200 % / -200 %
200 % / 200 %
x2, y2
1
2
3
4
5
6
7
8
9
x
-130 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
y(x)
40 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
dnOut_n
dnIn_n
x1, y1
x2, y2
-200 % / -200 %
200 % / 200 %