Aftercooler (Step Type) Setpoints; Figure 9-2. Aftercooler (Step Type) Screen - Emerson Vilter PLC Operation Manual

Section 9 • Step and PID Device Control Screens

AFTERCOOLER (STEP TYPE) SETPOINTS

• Start Aftercooler Above: Defi nes the temperature the
fi rst aftercooler step will come on.
• Target Aftercooler Outlet Temperature: Defi nes the
desired temperature of gas at the outlet of the af-
tercooler. The controller will cycle fans on and off to
maintain this temperature.
• Deadband: Range above and below setpoint where
the controller will not add or remove any steps.
• Step Dwell Time: Amount of time Aftercooler Outlet
Temperature must be outside the deadband to add
or remove a step.
• Aftercooler Fan Confi guration: Truth table that de-
fi nes which fan outputs are turned on in each step.
9 – 2

Figure 9-2. Aftercooler (Step Type) Screen

Blower Package PLC Operation Manual •Vilter/Emerson • 35391BLP