UPS 450 - 550 kVA (2x225 - 2x275 kVA)
User’s and Installation Guide
1027574
Revision B
54
Function
Subfunction
Operation
kW Demand Log
The kW Demand Log screen displays the individual log entries, including the
interval date and time frame, the maximum reading during the interval, the total
time over limit during the interval, an estimated number of total kWh used during
the interval, and the number of times over limit during the interval. If no events
have occurred, the screen displays LOG EMPTY. Press the LOG pushbutton on
the kW Demand Log Summary menu bar to display the kW Demand Log screen.
To scroll through the individual events, press the up or down arrow pushbuttons
on the menu bar. To return to the kW Demand Log Summary screen, press the
SUMMARY pushbutton on the menu bar. To clear the kWDemand Log, press the
RESET pushbutton on the menu bar.
kW Demand Log
Setup
Screen 1
The Current kW Demand Log Setup screen 1 displays the current user-defined
log settings. If no log settings are configured, the screen will display kWLOG
DISABLED. Press the SETUP pushbutton on the kW Demand Log Summary
menu bar to display the Current kW Demand Log Setup screen 1. To return to
the kWDemand Log Summary screen, press the return arrow pushbutton on the
menu bar.
Screen 2
The Current kW Demand Log Setup screen can be used to set up or change the
time interval and maximum level log settings. Press the CHANGE pushbutton on
the Current kW Demand Log Setup menu bar to display the Current kW Demand
Log Setup screen 2. Use the up or down arrow pushbuttons to highlight the setup
function screen desired, then press the SELECT pushbutton to display the func-
tion screen. To return to the Current kW Demand Log Setup screen 1, press the
return pushbutton on the menu bar.
Time Interval Moni-
tored
Setup
The Time Interval Monitored Setup screen allows the time duration of the event
being monitored to be changed. Select TIME INTERVAL MONITORED from
the Current kW Demand Log Setup screen 2 menu to display the Time Interval
Monitored Setup screen. Use the left or right arrow pushbuttons to select the
character position. Use the up or down arrow pushbuttons to change the char-
acter value. Once the new value is entered, press the DONE pushbutton. The
Time Interval Monitored Setup Save screen is displayed.
Time Interval Moni-
tored Save
The Time Interval Monitored Setup Save screen lets you save the new time
interval, retry another time interval, or abort the change. Press SAVE, RETRY, or
ABORT. If SAVE or ABORT is pressed, the action is completed, and the Current
kW Demand Log Setup screen 2 displays. If RETRY is pressed, the Time Interval
Monitored Setup screen is redisplayed.
Maximum Level
(kW) Setup
The Maximum Level (kW) Setup screen allows the kW limit of the event being
monitored to be changed. Select MAXIMUM LEVEL (kW) from the Current kW
Demand Log Setup screen 2 menu to display the Maximum Level (kW) Setup
screen. Use the left or right arrow pushbuttons to select the character position.
Use the up or down arrow pushbuttons to change the character value. Once
the new value is entered, press the DONE pushbutton. The Maximum Level (kW)
Setup Save screen is displayed.
Maximum Level
(kW) Save
The Maximum Level (kW) Setup Save screen lets you save the new kW limit,
retry another kW limit, or abort the change. Press SAVE, RETRY, or ABORT. If
SAVE or ABORT is pressed, the action is completed, and the Current kW Demand
Log Setup screen 2 displays. If RETRY is pressed, the Maximum Level (kW) Setup
screen is redisplayed.
Maximum Current
Log Summary
The maximum current log collects information on events where the unit load
exceeds a user-defined current limit within a user-defined time interval. The user
can choose a time period up to 9999 minutes and a load limit up to 100%. The
user can also select whether the limit defined is a three-phase average of the
individual phase currents or is a limit defined for each phase individually. In the
first case an event is logged if the average across the phases exceeds the de-
fined limit within a given time period and in the second case an event is logged
if any individual phase exceeds the defined limit within a given time period. The
Maximum Current Log Summary screen displays the number of times the limit
has been exceeded, the date of the last log reset, the maximum percent of full
load, and the total time over the limit. It also displays the average percent load
over the limit. This measurement differs, depending on whether a three-phase
average or an individual phase measurement is selected. Press the METERS
pushbutton on the main menu bar to display the Unit Meter screens. Scroll
through the meter screens using the up or down arrow pushbuttons on the menu
bar until the Maximum Current Log Summary screen is displayed.
