Lenze E94A - Manual (Page 582)

5 Function blocks
5.168 L_TbDifferentiate - differentiator with low-pass filter
582
Lenze · 9400 function library · Reference manual · DMS 6.7 EN · 08/2014 · TD05
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5.168 L_TbDifferentiate - differentiator with low-pass filter
This FB represents a differentiator with low pass.
• The input signal is differentiated and filtered with the filter time constant set via the parameter
C04050.
• The dnOut output signal has the unit [1/s] as time reference.  Adapting the time reference
( 584)
• The dnOut output signal is internally limited to ±2 31 -1.
• The bLimitActive output displays if a limitation is active.
Inputs
Outputs
Parameter
Function library: LenzeToolbox
Runtime software licence:  Motion Control HighLevel  Motion Control TopLevel
Identifier/data type Information/possible settings
dnIn
DINT
Input signal
Identifier/data type Value/meaning
dnOut
DINT
Output signal
• Internally limited to ±2 31 -1
bLimitActive
BOOL
Status signal "Limitation active"
TRUE The output signal is limited.
Parameter Possible settings Information
C04050 0.001 s 60.000 Filter time constant T
Filter
• Initialisation: 0.001 s
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