Settings For Positioners And Process Controllers; Input/Output - Selected Standard Signal; Signal. Sim - Simulation Of The Set-Point Value; X.control - Parameterisation Of The Positioner, Insensitivity Range (Dead Band) Of The Positioner - Burkert 3281 Operating Instructions Manual

Type 3281
Start-up
8.5

Settings for positioners and process controllers

8.5.1

INPUT/OUTPUT - selected standard signal

Under this menu option, enter the signal used for the set-point value or actual value.
- Current 4...20 mA (for digital variant only actual value)
- Current 0...20 mA (for digital variant only actual value)
- Voltage 0...10 V (for digital variant only actual value)
- Voltage 0...5 V for digital variant only actual value)
- CANopen/büS (only for digital variant)
- Frequency (only for digital variant)
8.5.2

SIGNAL. SIM - Simulation of the set-point value

This function can be used to simulate the set-point value. The selected set-point value source is ignored by
the device during the simulation. The following wave forms can be entered:
Sinus wave
Sinus
Square wave
Square
Triangle wave
Triangle
Fixed
Manual input of a fixed set-point value
The following parameters can be set for the selected signal form:
Menu
Parameter setting
option
Offset (zero point shift in %)
Amplitude (amplitude in %)
Period (Period duration in s)
8.5.3 X.CONTROL - Parameterisation of the positioner, insensitivity
range (dead band) of the positioner
Input of the dead band in %, based on the scaled stroke/rotation angle range. This function ensures that the
controller does not respond until a certain control difference is reached.
Schematic representation with sine wave
70%
50%
70%
50%
Period in s
70%
50%
Offset in %
t
Amplitude in %
t
t
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