Compressor Control Screen

This screen allows the operator to view and adjust settings that affect compressor capacity control.

COMPRESSOR CONTROL

Pressure/Temperature control setpoints

Auto-cycle control points

VFD control set-points

Pump-down control setpoints

Pull-down control setpoints

The Vision 20/20 comes preconfigured for the type of controls that are available. The operator is able to choose the mode of control from the Compressor Control screen. This selection will typically be found on the last page of the Compressor Control screens.

Typically, the operator can choose from the following parameter list:

Suction Pressure SP1 (SP1 = Setpoint #1)

Suction Pressure SP2 (SP2 = Setpoint #2)

Process Temperature SP1

Process Temperature SP2

Discharge Pressure SP1

Discharge Pressure SP2

Once the control parameter is chosen, the appropriate setpoints are then displayed on the Compressor Control Setpoints screen. The compressor control logic will decide when to increase or decrease capacity by comparing the controlled variable to the setpoints.

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Emerson VISSION 20/20 service manual Compressor Control