Device parameters
General remarks
Microprocessor-based position control in the positioner
optimizes control. The positioner features high-precision
control functions and high operational reliability. Due to their
elaborate structure and easy accessibility, the device
parameters can be quickly adapted to the respective
application.
The total range of parameters includes:
— Operating parameters
— Adjustment parameters
— Monitoring parameters
— Diagnostics parameters
— Maintenance parameters
Operating parameters
The following operating parameters can be set manually if required:
Setpoint signal
0 ... 100 % freely selectable for split-range operation
For 4 ... 20 mA and HART version:
— Signal min. 4 mA, max. signal 20 mA (0 ... 100%)
— Min. range 20 % (3.2 mA)
— Recommended range > 50 % (8.0 mA)
Action (setpoint signal)
Increasing:
Position value 0 ... 100 % = direction 0 ... 100 %
Decreasing:
Setpoint signal 100 ... 0% = direction 0 ... 100%
Characteristic curve (travel = f {setpoint signal})
Linear, equal percentage 1:25 or 1:50 or 25:1 or 50:1 or freely
configurable with 20 reference points.
Travel limit
The positioning travel, i.e. the stroke or angle of rotation, can
be reduced as required within the full range of 0 ... 100 %,
provided that a minimum value of 20% is observed.
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