. functions.of.the.process.controller.software, Functions of the process controller software – Burkert Type 8693 User Manual

Page 26

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26

Description of system

8.2.

functions 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 operating characteristic can be linearized

Insensitivity range
X.CONTROL

The position controller is initially actuated from a control
difference to be defined

Effective direction of the controller nominal value
DIR.CMD

Reversal of the effective 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 direction of the actuator
DIR.ACT

Adjustment of the effective 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

Table 4:

Functions position controller

english

Type 8692, 8693

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