Emerson E2 operation manual Analog Output Screen

Figure 9-13- Analog Output Screen

Board/Point # The Board/Point Number will auto- matically be defined if you are configuring the point from the Output Definitions screen, and indicates the physical address of the board.

Point Name The Point Name is simply a name for the output point that may be used as a reference.

Assigning a descriptive name to a point makes set- ting up outputs for applications much easier. For example, if you are setting up fan #3 for Zone 1, you may choose to name it “FAN#1 HT#3”. Then, when programming your Condenser Control application, you may easily define the fan output by tying it to FAN#1 HT#3. This keeps you from having to keep track of which contacts are tied to which point num- bers. You are required to enter a point name in the Point Name field. The default name is “:{BOARD NAME}:{UNIT NUMBER}:{BOARD NUM- BER}:{POINT NUMBER}”.

Output Type The analog output may be either of two types: Linear and VSComp.

Linear means that the output is a standard 0-10VDC linear output.

VSComp means that the output is a percentage (0% - 100%) that is driving an inverter that controls a vari- able-speed device such as a compressor or fan.

If the output will be driving a variable-speed device, choose VSComp in this field; otherwise, select Lin- ear. Use  (LOOK UP) to select.

Select Eng. Units The engineering units of the output value are entered in the Select Eng. Units field. This value is defaulted to percent (PCT). Use

(LOOK UP) to select.

Default Value The value that the relay output should go to if the output is not associated to an application. The default value of the Default Value field is OFF.

Modify Output Equation Enables the value to be translated into an output.

Low End Point The output voltage when the INPUT is at the value specified in the Low Eng. Units field.

High End Point The output voltage when the INPUT is at the value specified in the High Eng. Units field.

Low Eng. Units The value of the input (in Engi- neering Units) that will produce the output voltage specified in the Low End Point field.

High Eng. Units The value of the input (in Engi- neering Units) that will produce the output voltage specified in the High End Point field.

PRIORITY OVR When an input is overridden to an output cell. If this input is not set to NONE, it will be used for the output value instead of the input value, but only for the override timeout period.

Priority Override Timeout When an input goes on it will override to a value for the timeout period.

INPUT This field links the output to an application. You do not need to enter anything in this field. You will be able to link applications to this point during the application setup process.

The 8RO, 8IO, and MultiFlex Outputs Input and Output Setup • 9-15