The following table describes the attributes used by the Humidification Staged Outputs modules.
|
Name |
Type 1 |
Description |
Default Value |
|---|---|---|---|
|
Control Band |
V |
Control band for the MSC. |
Display Units: % RH |
|
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 |
|
|
Eff Minimum Off Time |
V |
Contains the minimum off time used by the MSC. |
Display Units: Seconds |
|
Eff Minimum On Time |
V |
Contains the minimum on time used by the MSC. |
Display Units: Seconds |
|
Eff Process Time Const |
V |
Contains the effective process time constant used by the MSC. |
Display Units: Seconds |
|
Eff Process Variable |
V |
Process Variable to be used by the MSC. |
Display Units: % RH |
|
Humidity Control Status |
V |
Current saturation status of the controller. |
Set Name: Control Status |
|
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 |
Contains the desired process variable setpoint when the activity operates in the H Control mode. |
40.0% RH |
|
|
HUM-MINOFF (Minimum Off Time) |
Min Off Duration for all stages. |
120 Seconds |
|
|
HUM-MINON (Minimum On Time) |
Min On Duration for all stages. |
120 Seconds |
|
|
HUM-O (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: % |
|
HUM-OUTSTATE (State) |
G, V |
Contains the current operational mode of the output controller. |
Set Name: AHU Hum Prop |
|
Instant Shutdown |
V |
Contains the indication to the MSC to shut all outputs off instantly. |
|
|
Max Capacity Fraction |
Contains the ratio of the largest stage to the sum of all the stages. |
1.0 |
|
|
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% |
|
|
Mode |
Mode requested by State Selection. |
Off Set Name: AHU Hum Prop |
|
|
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 |
|
|
PMAC Period |
V |
Period used by the PMAC algorithm portion of the MSC. |
Display Units: Seconds |