The following table describes the attributes used by the 2 Pipe FBPD 2 Position Valve with Low Limit modules.
Name |
Type 1 |
Description |
Default Value |
---|---|---|---|
Cooling Control Status |
V |
Cooling PID Status. The possible values are Normal, Overridden, Disabled, Low, Timing Low, High, and Timing High. |
Normal Set Name: Control Status |
Cooling Mode |
Contains the desired cooling mode of operation. |
Off Set Name: AHU Common Valve Out |
|
Cooling Setpoint |
Desired cooling setpoint for the process variable to be controlled to when the Cooling Mode is T Control. |
13 °C, 55 °F |
|
Damper Percent Cmd |
V |
Controls the heating/cooling face and bypass damper. The damper is commanded from 0% (full bypass) to 100% (full face). |
0% |
Failsoft Cooling Value |
Defines the face and bypass damper position when the module is cooling and in the Failsoft mode. |
100% |
|
Failsoft Heating Value |
Defines the face and bypass damper position when the module is heating and in the Failsoft mode. |
100% |
|
HC-OUTSTATE (State) |
V, G |
Indicates the current operational mode of the output controller. |
Off Set Name: AHU Common Valve State |
Heating Control Status |
V |
Heating PID Status. The possible values are Normal, Overridden, Disabled, Low, Timing Low, High, and Timing High. |
Normal Set Name: Control Status |
Heating Mode |
Contains the desired heating mode of operation. |
Off Set Name: AHU Common Valve Out |
|
Heating Setpoint |
Desired heating setpoint for the process variable to be controlled to when the Heating Mode is T Control. |
13 °C, 55 °F |
|
Limited Max Cooling Value |
Defines the face and bypass damper position when the module is in the Limited Max Cooling state. |
100% |
|
Limited Max Heating Value |
Defines the face and bypass damper position when the module is in the Limited Max Heating state. |
100% |
|
Low OA Temperature Diff |
Differential for the Low OA Temperature function. Once the valve opens, the OA Temperature must increase Low OA Temperature Diff more than the setpoint before the valve can close. |
0.5 °C, 1 °F |
|
Low OA Temperature Setpoint |
Contains the setpoint for the Low OA Temperature function. When the OA Temperature is below this setpoint, the valve is opened. |
4 °C, 40 °F |
|
OA Temperature |
Used for the Low OA Temperature mode. If the OA Temperature drops below a defined setpoint the valve is opened. |
4 °C, 40 °F |
|
Output Overridden |
Indicates when the actual output controlled by this output is overridden by a user. |
False |
|
Output Position |
Provides the current Present Value of the output that this controller drives. |
0% |
|
PID Tuning Reset |
Causes the PID objects to reset their tuning parameters to the default based on the appropriate Process ID. |
Normal Set Name: PID Tuning Reset |
|
Process ID |
Contains the type of process that this output controller is controlling when the mode is T Control. |
DA-T Set Name: Process ID |
|
Process Units |
Specifies the units for the PID. For this particular module, °C and °F are the only two valid values. |
°C, °F Set Name: Unit |
|
Process Variable |
Control temperature. Zone temperature, discharge air temperature, or return air temperature may be connected to this input. |
13 °C, 55 °F |
|
Pump OnOff |
V |
Controls the circulating pump. |
Off Set Name: Off/On |
SummerWinter |
Determined if the module should heat or cool. If the input is Summer, cooling is allowed, and heating is unavailable. If the input is winter, heating is allowed, and cooling is unavailable. |
Winter Set Name: Summer/Winter |
|
Valve OpenClose |
V |
Controls the two position valve. |
Close Set Name: Close/Open |