Phason Plus Touch Series, Руководство пользователя

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Programming equipment settings
53
Programming inlet actuators
Before programming the inlet actuator relays, make sure you have properly configured the relays and
calibrated the actuators. For more information, read
Configuring relays for inlet actuators or
curtains
on page 33 and
Calibrating inlet actuators
on page 34.
How inlets work

When the temperature is below the minimum set point, the inlet is closed.

When the temperature rises to the minimum set point, the inlet moves to the minimum position.

As the temperature rises, the inlet moves through the stages until it reaches its maximum open
position. This method lets you gradually open inlets instead of fully opening them when the
temperature rises above a single set point.
For example, you might decide to have the inlet open to 40 percent at stage 1, 60 percent at stage 2,
80 percent at stage 3, 90 percent at stage 4, and 100 percent at stage 5.
However, you don’t want the inlet to open directly to 40 percent. That is why there are two
temperature settings for each stage. The first setting is the stage set point. This is where the inlet
starts opening. The second setting is the differential. This is where the inlet reaches the stage
position.

Use actuator control for actuators or curtain machines
only if they have
feedback
. Using actuator control for motors without feedback can burn them
out.

For information about programming actuators or curtain machines without
potentiometers, read
Programming curtain control relays
on page 54.