User guide

Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05 567
5 Function blocks
5.163 L_TbCurve - characteristic function
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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 %