Lenze E94A - Manual (Page 566)

5 Function blocks
5.163 L_TbCurve - characteristic function
566
Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05
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5.163.1 Selection of the characteristic
The up to nine points of the characteristic are selected via the subcodes of C04101 and C04102.
• The same subcodes of C04101 and C04102 correspond to a pair of variates/point (x
n
, y
n
).
• The first pair of variates (C04101/1 and C04102/1) is always valid.
• The X values of the characteristic must be entered in ascending order (X1 < X2 < … < X9).
• If the ascending chain of x values is interrupted, this corresponds to the end of the characteristic
(in the example X5 < X4):
• Based on the last valid pair of variates, an extrapolation is executed to the end of the x value
range (±200 %) on both sides.
• In the characteristic modes 1 and 2, only the range of the characteristic entered in the quadrants
I. and IV. is used.
C04101/1...9 -200.00 % 200.00 X values of the characteristic func-
tion
• Subcodes 1 ... 9 correspond to the
point values X1 ... X9.
• Initialisation: 0.00 %
C04102/1...9 -200.00 % 200.00 Y values of the characteristic func-
tion
• Subcodes 1 ... 9 correspond to the
point values Y1 ... Y9.
• Initialisation: 0.00 %
Parameter Possible settings Information
1 2 ... 9
x C04101/1 C04101/2 C04101/... C04101/9
Y C04102/1 C04102/2 C04102/... C04102/9
1 2 3 4 5 6 7 8 9
x -140 % -90 % 70 % 145 % 0 % 0 % 0 % 0 % 0 %
Y -140 % -40 % 115 % 160 % 0 % 0 % 0 % 0 % 0 %