AEC AD Series Operation And Installation Manual page 37

Proportional Band Mode(P)
Integral Time Mode (I)
Derivative Time Mode (d)
Entering Operating Parameters to Select Modes
AD Series Dehumidifying Dryers
This setting controls the amount in which the manipulated variable
(MV) is proportionate to the deviated value or controller error.
Setting this feature, gives the control an action that is proportionate
to the time integral of the control error. By using this setting,
proportional action is used in combination with integral action to
offset the control error and the set point will begin to match the
control temperature (PV or process value).
Setting the derivative control provides the controller with the
ability to correct for a future error in the previously set process
output.
To enter the display:
Press the Mode Display key to view the Run/Stop & Alarm
1 Modes.
Press and
parameter or turn that function On or Off.
The readout displays the different values for the
SV
parameter within a mode.
To switch modes within a level, press and hold the
Display key for one (1) second.
The readout will display the different parameters within
PV
each mode.
Use short presses on the
parameter within a mode.
The readout displays the different values for the
SV
parameter within a mode.
to set the higher or lower the values of the
Mode Display key to display each
Level
Page 37