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17
Function library
17.1
Function blocks | L_Curve_3
1341
Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23
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Linear torque profile
•
nD0_a
serves to define at which diameter the tensile force decrease is to start.
• Since in this characteristic selection, the linear torque profile is in the focus, define in this case
the slope of the torque curve via
dnCurveCtrl_n
:
• When
nCurveCtrl_a
= 100 %, the tensile force remains unchanged.
• When
nCurveCtrl_a
= 0 %, the tensile force is reduced up to D0/DMax.
Characteristic for a linear torque profile (
= 2)
Characteristic
Tensile force
Diameter
Function for D > D0:
D Current diameter (
nDiameter_a
)
D0 Initial point for diameter dependency (
nD0_a
)
HW Tensile force valuation (
nCurveCtrl_a
)
Example: Steepness of the torque curve
Characteristic
Torque
Diameter
D Current diameter (
nDiameter_a
)
D0 Initial point for diameter dependency (
nD0_a
)
DMin
(DMax)
D0
100 %
100 %
0 %
100 %
nCurveCtrl_a = 0 %
HW
HW
100 % HW
–
(
)
D0
⋅
D
------------------------------------------------
+
DMin
(DMax)
D0
100 %
100 %
0 %
100 %
nCurveCtrl_a
0 %
50 %