The following table describes the attributes used by the Cooling FBPD 2 Position Valve with Dehumidification modules:
|
Name |
Type 1 |
Description |
Default Value |
|---|---|---|---|
|
CLG-OUTSTATE (State) |
V, G |
Indicates the current operational mode of the output controller. |
Off Set Name: AHU Clg FBPD Out |
|
Cooling Control Status |
V |
Displays the PID Status. The possible values are Normal, Overridden, Disabled, Low, Timing Low, High, and Timing High. |
Normal Set Name: Control Status |
|
Damper Percent Cmd |
V |
Controls the face and bypass damper. The damper is commanded from 0% (full bypass) to 100% (full face). |
0% |
|
Dehum Process ID |
Specifies the type of process that this output controller is controlling when the mode is H Control. |
RA-H Set Name: Process ID |
|
|
Failsoft Value |
Defines the face and bypass damper position when the module is in the Failsoft state. |
100% |
|
|
Humidity Process Variable |
Value of the humidity being measured by the humidity sensor. It is used as the process variable in the dehumidification control. |
50% RH |
|
|
Humidity Setpoint |
Dehumidification Setpoint. |
50% RH |
|
|
Limited Max Value |
Defines the face and bypass damper position when the module is in the Limited Max Heating state. |
100% |
|
|
Low OA Temperature Diff |
Contains the differential for the Low OA Temperature mode. Once the valve has been in the Low AO Temperature mode, the OA Temperature must increase Low OA Temperature Diff more than the Low OA Temperature Setpoint before the valve can close. |
0.5 °C, 1 °F |
|
|
Low OA Temperature Setpoint |
Setpoint for the Low OA Temperature mode. When the OA Temperature is below this setpoint, the valve opens and the face and bypass dampers are be set to 100%. |
4 °C, 40 °F |
|
|
Mode |
Desired mode of operation. |
Off Set Name: AHU Clg FBPD Out |
|
|
OA Temperature |
Specifies that when the module supports a Low Temperature response, the valve may be opened if OA Temperature drops below a defined setpoint. This input is used for the Low OA Temperature input temperature. |
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 |
Specifies the type of cooling 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 cooling PID. For this particular module, °C and °F are the only two valid values. |
°C, °F Set Name: Unit |
|
|
Process Variable |
Contains the control temperature. Either 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 |
|
Setpoint |
Contains the desired setpoint for the process variable to be controlled to when the mode is Control. |
13 °C, 55 °F |
|
|
Valve OpenClose |
V |
Controls the two position cooling valve. |
Close Set Name: Close/Open |