Properties.of.the.position.controller.software - Burkert 8792 Operating Instructions Manual

7.2. properties of the position controller software
Position.controller.with.additional.function
Additional.function
Sealing function
CUTOFF
Stroke limit
X.LIMIT
Signal range splitting
SPLTRNG
Correction line to adjust the operating characteristic
CHARACT
Insensitivity range
X.CONTROL
Effective sense of direction of the controller set-
point value
DIR.CMD
Safety position
SAFEPOS
Limiting the control speed
X.TIME
Effective directional sense of the actuator drive
DIR.ACT
Signal level error detection
SIG.ERROR
Binary input
BINARY. IN
Analogue feedback (option)
OUTPUT
2 binary outputs (option)
OUTPUT
User calibration
CAL.USER
Table 2: Properties of the position controller software. Position controller with additional function.
24
English
Types 8792, 8793
Description of System
Effect
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%).
Mechanical valve piston movement only within a defined
stroke range
Splitting of the uniform signal range to two or more
positioners
The process characteristic can be linearized
The position controller is initially actuated from a control
difference to be defined
Reversal of the effective sense of direction of the set-
point value
Definition of the safety position
Input of the opening and closing time for the entire stroke
Adjustment of the effective sense of direction between
aeration state of the actuator and the actual position
Check the input signals for sensor break.
Warning output on the display and start up of the safety
position (if selected)
Switch over AUTOMATIC-MANUAL or
Start up of the safety position
Status signal set-point or actual value
Output of two selectable binary values
Change to the factory calibration of the signal input