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SMD Series Dehumidifying Dryers Page 35
Proportional Band Mode(P)
This setting controls the amount in which the manipulated variable
(MV) is proportionate to the deviated value or controller error.
Integral Time Mode (I)
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).
Derivative Time Mode (d)
Setting the derivative control provides the controller with the
ability to correct for a future error in the previously set process
output.
Entering Operating Parameters to Select Modes
To enter the display:
1. Press the Mode Display key to view the Run/Stop &
Alarm Modes.
2. Press
and to set the higher or lower the values of
the parameter or turn that function On or Off.
The SV readout displays the different values for the
parameter within a mode.
3. To switch modes within a level, press and hold the
Level
Display key for one (1) second.
The PV readout will display the different parameters within
each mode.
4. Use short presses on the
Mode Display key to display
each parameter within a mode.
The
SV readout displays the different values for the parameter
within a mode.
5. Press
and to set the higher or lower the values of a
parameter or turn that function On or Off.
6. Press
Level Key once to return to the Process
Temperature Setting.