Sullair WSPC - Clear Recent Data; Delivery History

SECTION 6 WSPC USER INTERFACE MANUAL
49
Total Delivery indicates the estimated total amount
of air delivered since the last reset for Recent
data
and since the machine was commissioned for
Lifetime
data; measured in thousands of cubic feet
(KCF).
Total Energy indicates the estimated total electrical
energy consumption since the last reset for Recent
data and since the machine was commissioned for
Lifetime
data; measured in Kilowatt-Hours (KWH).
Total Cost indicates the cost for the electrical energy
since the last reset for Recent
data and since the
machine was commissioned for Lifetime
data;
calculated as dollars (or other units of currency).
Savings vs Load/Unload shows the estimated
additional cost to deliver the same quantity of air
using load/unload compressor control since the last
reset for Recent
data and since the machine was
commissioned for Lifetime
data; calculated as
Dollars. This value is calculated using the
Compressed Air Challenge curve for Load/Unload.
Savings vs Inlet Mod. shows the estimated
additional cost to deliver the same quantity of air
using inlet modulation compressor control since the
last reset for Recent
data and since the machine was
commissioned for Lifetime
data; calculated as
Dollars. This value is calculated using the
Compressed Air Challenge curve for Inlet
Modulation.
Savings vs Variable Displacement shows the
estimated additional cost to deliver the same quantity
of air using variable displacement compressor
control since the last reset for Recent
data and since
the machine was commissioned for Lifetime
data;
calculated as Dollars. This value is calculated using
the Compressed Air Challenge curve for Variable
Displacement.
Refer to the WS Controller Instruction Manual for
descriptions of VSD functions and handling of
warning and fault messages.
6.4 CLEAR RECENT DATA
The Recent data column displays average and total
values since the date of the last reset. Recent data
history may be reset to zero (like a trip odometer in a
car) by clicking the Clear Recent Data button at the
bottom of the VSD Performance box. A few seconds
after the button is pressed, all values in the Recent
columns of the VSD Performance group and the
Delivery History window will be set to zero. New
machine statistics will immediately begin to be
calculated and the Recent columns will soon be
populated with the new Recent data values.
6.5 DELIVERY HISTORY
Click on the Delivery History button to open the
Delivery Profile window. See Figure 6-3. This window
displays a detailed breakdown of the compressor
operation over a Recent period or over the Lifetime
of the machine. The Delivery Profile shows the
amount of time the compressor has operated at
various rates of delivery. For example, the values
shown in Figure 6-3 correspond to a compressor that
has been delivering approximately 15% of its rated
capacity for 24 minutes; it ran 10 minutes at 25%
capacity, etc. These values may be used for further
estimates of compressor options during plant
surveys and evaluations. The Recent values shown
in the Delivery Profile window are reset to zero when
the Clear Recent Data button is pressed at the VSD
performance box.
Click on the "Report" menu item to make a
comprehensive text file that may be viewed or copied
into other documents. This includes the adjustments
for the variable speed drive and a report of its
performance. See Section 5.2.