The following table describes the attributes used by the Humidification Proportional Steam Output modules.
|
Name |
Type 1 |
Description |
Default Value |
|---|---|---|---|
|
Compensator Humidity Cmd |
Controls the humidifier valve. The valve is commanded from 0% to 100%. This output incorporates the Lead Compensator. |
0.0 Display Units: % |
|
|
Delay |
Defines the time that the Humidity Percent Cmd is held at 0% following activation of the Isolation Valve Command. |
300 Seconds |
|
|
Discharge Humidity |
Contains the process variable when the activity operates in the Limited H Control mode. |
70.0% RH |
|
|
Discharge Humidity Setpoint |
Contains the desired process variable setpoint when the activity operates in the Limited H Control mode. |
70.0% RH |
|
|
Humidity Control Status |
V |
Contains the current saturation status of the controller. |
Set Name: Control Status |
|
Humidity Percent Cmd |
V |
Contains a representative analog percent output on a scale of 0% to 100%. This output should be connected to the humidification control device. |
Display Units: % |
|
Humidity Process ID |
Defines the type of process being controlled. This input must be set to either zone humidity or return humidity depending on the actual process. |
RA-H Set Name: Process ID |
|
|
Humidity Process Variable |
Used for either the return air humidity or the zone air humidity. This is the process variable when the activity operates in the H Control mode. |
40.0% RH |
|
|
Humidity Setpoint |
Desired process variable setpoint when the activity operates in the H Control mode. |
40.0% RH |
|
|
HUM-OUTSTATE (State) |
G, V |
Contains the current operational mode of the output controller. |
Set Name: AHU Hum Prop |
|
Isolation Valve Command |
V |
Enables the steam isolation and/or humidifier jacket valve when controlling a proportional steam humidification valve. This output would be ON anytime humidification is required. |
Set Name: Off/On |
|
Mode |
Mode requested by State Selection. |
Off Set Name: AHU Hum Prop |
|
|
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 |