Type 8693

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6.

Performance specifications

6.1. Signal flow diagram

Process control circuit

Process

setpoint

SP

PV

Process

controller

Position

control

loop

Transmitter

Process

factor

Process

-

+

Xd2

CMD

Valve

opening

Z2

Position control loop

Position

setpoint

CMD

POS

Positioner

Pilot valve

system

Position sensor system

Position control loop

Valve

opening

Control valve

-

+

Xd1

B1

P

K

Z1

E1

Additional software options of the TopControl process controller Type 8693

• Automatic commissioning of control valve systems

• Automatic parameterisation of process control circuit

• Automatic or manual characteristic curves selection

• Setting of seal and maximum stroke threshold, respectively

• Parameterisation of positioner

• Manual parameterisation of process controller

• Limitation of stroke range

• Limitation of positioning speed

• Setting direction of movement

• Configuration of digital input

• Signal range splitting on several controllers

• Configuration of 1 analogue or 2 digital outputs

• Signal fault detection

• Safety position

• Code protection

• Contrast inversion of display