Basic functions, Auxiliary functions – Burkert Type 8791 User Manual

Page 32

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Operationandfunction

6.6.

Overview of Basic functions and auxiliary
functions

6.6.1.

Basic functions

The following basic functions are created as device menu items in the navigation area in the factory:

INPUT

Entry of the unit signal input for the set-point value

CHARACT

Selection of the transfer characteristic between input signal and stroke (correction
characteristic)

CUTOFF

Sealing function for positioner

DIR.CMD

Effective direction between input signal and set-point position

RESET

Reset to factory settings

TUNE

Automatic adjustment of the positioner to the relevant operating conditions

The parameterization and description of basic functions may be found in Section "

7. Parameterization of

Basic Functions".

6.6.2.

auxiliary functions

The following auxiliary functions can be added to the device menu:

DIR.ACTUATOR

Assignment of the aeration state of the actuator chamber to the actual position

SPLITRANGE

Signal split range; input signal as % for which the valve runs through the entire stroke
range.

X.LIMIT

Limit the mechanical stroke range

X.TIME

Limit the control speed

X.CONTROL

Parameterize the positioner

SAFE POSITION

Definition of the safety position

SIGNAL ERROR

Configuration of signal level fault detection

BINARY INPUT

Activation of the binary input

OUTPUT

Configuration of the output (only with auxiliary board for analog feedback)

The configuration, parameterization, and description of auxiliary functions may be found in Section “8.
Configuring Auxiliary Functions”.

English

Software Tool - Positioner

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