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Effective direction of the actuator, Control output limitation – Burkert Type 8620 User Manual

Page 89

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mxCONTROL Type 8620


Page 89

Module Sense of Action:

The module sense of action (controller sense of action) is reversible. The module sense of action is
normally not inverted.
The module sense of action can be changed via the configuration file or in the menu item
"Configuration" - see the following figure.

Figure 30: Sense of action of the
module (COMMON_PID).

Effective direction of the actuator

The control output calculated by the controller can be adapted with this function to the effective
direction of the actuator according to the following figure.

- Rise:

Direct effective direction

- Scenario:

Inverse effective direction

Control Output

Control Output

calculatd by

Controller

100%

0%

100%

0%

Fall

Rise

Figure 31: Effective direction of the
actuator (COMMON_PID).

If the connected actuator - when using a proportional controller with Start point (X0) 0% in the
compensated state

• shall be selected with 0%

Æ Select effective direction Rise

• shall be selected with 100%

Æ Select effective direction Fall

Control output limitation

The output control output is only restricted in the automatic mode through the control output limit.
Either characteristic curve 1 or 2 (charact 1 or 2) can be chosen for the limit.