The following table describes the attributes used by the Plant Sequencing-Modulating modules:
|
Name |
Type 1 |
Description |
Default Value |
|---|---|---|---|
|
Plant Sequencing-Modulating Common Attributes |
|||
|
Down Delay |
Indicates the minimum time after a Stage Down that another operation (Stage Up or Stage Down) can be performed. |
10 minutes |
|
|
Minimum Running Devices |
Indicates the minimum quantity of stages to run as a first stage. |
0 |
|
|
Number of Devices Running |
Indicates the number of devices that are currently being called by the BO sequencer to run. |
0 |
|
|
Output |
V |
Indicates the number of devices that are being called to run. |
0 |
|
Process Variable |
Indicates the variable that is compared to the setpoint and determines whether Stage Up or Stage Down is required. |
100% |
|
|
Stabilize Delay |
Prevents debounce in staging up or down. The Plant Sequencing-Modulating module must be in Stage Up or Stage Down mode for this length of time before command is issued. |
180 Seconds |
|
|
StageDown Setpoint |
V |
Indicates the target value of the process variable. |
15% |
|
StageUp Setpoint |
Indicates the target value of the process variable. |
95% |
|
|
Start-up Delay |
Indicates the period to wait before staging on additional (above minimum) devices to allow the system to stabilize. |
60 Minutes |
|
|
State |
G |
Indicates the current state generated by the sequence. |
OffSet Name: Plant Sequencing Mode |
|
System Enable |
Indicates the status of the Off/On command that enables the staging process to run. |
Off |
|
|
System Interlock Status |
Indicates the on or off status of the Global System Interlock. This attribute must beOnbefore staging can occur. |
On |
|
|
Up Delay |
Indicates the minimum time after a Stage Up that another operation (Stage Up or Stage Down) can be performed. |
15 Minutes |
|
|
Secondary HW Pump Sequencing and Secondary CHW Pump Sequencing Attributes |
|||
|
Down Delay |
Indicates the minimum time after a Stage Down that another operation (Stage Up or Stage Down) can be performed. |
5 Minutes |
|
|
Start-up Delay |
Indicates the period to wait before staging on additional (above minimum) devices to allow the system to stabilize. |
0 Minutes |
|
|
Up Delay |
Indicates the minimum time after a Stage Up that another operation (Stage Up or Stage Down) can be performed. |
5 Minutes |
|
|
Variable Speed Fan Clg Twr Attributes |
|||
|
Down Delay |
Indicates the minimum time after a Stage Down that another operation (Stage Up or Stage Down) can be performed. |
3 Minutes |
|
|
Start-up Delay |
Indicates the period to wait before staging on additional (above minimum) devices to allow the system to stabilize. |
0 Minutes |
|
|
Up Delay |
Indicates the minimum time after a Stage Up that another operation (Stage Up or Stage Down) can be performed. |
3 Minutes |
|