24
Type 8692, 8693
english
Description of System
4.2 Properties of the process controller software
Additional function Action
Position controller with additional function
Sealing function
CUTOFF
Valve closes tight outside the control range. Specification of the
value (in %), from which the actuator is completely deaerated
(when 0%) or aerated (when 100%).
Stroke limit
X.LIMIT
Mechanical valve piston movement only within a defined stroke
range
Correction line to adjust the operating characteristic
CHARACT
The process characteristic can be linearized
Insensitivity range
X.CONTROL
The position controller is initially actuated from a control differ-
ence to be defined
Effective sense of direction of the controller nominal
value
DIR.CMD
Reversal of the effective sense of direction of the nominal value
Safety position
SAFEPOS
Definition of the safety position
Limit of the control speed
X.TIME
Input of the opening and closing time for the entire stroke
Effective directional sense of the actuator
DIR.ACT
Adjustment of the effective sense of direction between aeration
state of the actuator and the actual position
Signal level error detection
SIG.ERROR
Check the input signals for sensor break.
Warning output on the display and start up of the safety position
(if selected)
Binary input
BINARY. IN
Switch over AUTOMATIC-MANUAL or
Start up of the safety position
Analogue feedback (option)
OUTPUT
Status signal set-point or actual value
2 binary outputs (option)
OUTPUT
Output of two selectable binary values.
User calibration
CAL.USER
Change to the factory calibration of the signal input
Process controller with the following properties
Controller structure
P.CONTROL
PID
Adjustable parameters
P.CONTROL - PARAMETER
Proportional coefficient, reset time, hold-back time and operating
point
Scalable inputs
P.CONTROL - SETUP
Position of the decimal points, lower and upper scale values of
the actual process value and the process set-point value
Selection of the nominal value specification
P.CONTROL - SETUP - SP INPUT
Set-point value specification either via uniform signal input or via
keys
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