Type 8694

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6.

Performance specifications

6.1. Signal flow diagram

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 BASIC positioner Type 8694 (extract)

• X.Tune function for automatic start-up

• Linear characteristic

• Close-tight function

• Reversal of the operating direction of the setpoint signal

• Switching between manual and automatic mode

• Digital input

• Parameterisation of device through PACTware/DTM main functions

• Device operation via service büS interface and communicator

• Setpoint value selection (0/4…20 mA)

• Position controller parametrisation

• Programmable stroke range limit

• Limitation of opening/closing time

• Safety position definition

• Signal error detection

• Digital input configuration

• Analogue output configuration position setpoint/feedback

• Setting setpoint/actuator direction (rise/fall)

• Resetting the device to factory settings