17 function library, 1 function blocks, Function library – Lenze E84DSxxx User Manual
Page 710: Function, Library

17
Function library
17.1
Function blocks
710
Lenze · 8400 protec StateLine · Reference manual · DMS 4.2 EN · 03/2013 · TD05
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17
Function library
17.1
Function blocks
This chapter describes the function blocks which are available for the controller in the FB Editor.
Overview of function blocks available
The system blocks are described in the following chapter "
Function block
Runtime Function
2 μs
... converts a bipolar input signal into a unipolar output signal.
3 μs
... adds / subtracts analog input signals.
2 μs
... switches between two analog input signals.
2 μs
... ANDs three binary signals.
7 μs
... combines two analog signals arithmetically.
5 μs
... compares two analog signals and can be used e.g. to implement a
trigger.
1 μs
... provides two stable states depending on the input signals.
2 μs
... delays binary signals.
2 μs
... provides a binary output signal which is generated by the logic
combination of three input signals.
3 μs
... can amplify an analog input signal and then add an offset to it.
• Gain and offset can be set via FB inputs.
5 μs
... can interpolate a position setpoint and/or an analog value e.g. to
compensate for larger bus transmission cycles or to continue signal
characteristics if data telegrams are missing.
5 μs
... can be connected upstream to the
implement a switch-off positioning at limit switch.
10 μs
... replaces a hardware motor potentiometer as setpoint source.
4 μs
... multiplies the analog input signal with a factor.
2 μs
... negates an analog input signal.
2 μs
... inverts a digital input signal.
50 μs
... contains a ramp generator with comprehensive parameterisation and
control options to condition a setpoint signal.
4 μs
... can add an offset to an analog input signal and amplify it afterwards.
• Offset and gain can be set via FB inputs.
17 μs
... can add an offset to an analog input signal and amplify it afterwards.
• Offset and gain can be set via parameters.
2 μs
... ORs three binary signals.