Powerware 9390 UPS 100160 kVA - Manual (Page 83)

USING THE CONTROL PANEL
EATON Powerware ® 9390 UPS (20–80 kVA) Installation and Operation Manual S 164201603 Rev 2 www.powerware.com 8-17
8.2.6 Maximum Current Log
Press the METERS pushbutton on the main menu bar to display the Unit Meter
screens. Scroll through the meter screens using the or pushbuttons on the
menu bar until the Maximum Current Log Summary screen is displayed.
The maximum current log collects information on events where the unit load exceeds
a user‐defined current limit within a user‐defined time interval. 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 defined 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. Figure 8‐21
shows the Maximum Current Log Summary screen.
MAXIMUM CURRENT LOG SUMMARY
LOG
LAST LOG RESET
AVERAGE % OF FULL LOAD
TOTAL TIME OVER LIMIT
MAXIMUM % OF FULL LOAD
5
08/04/2005
** MINUTES
NUMBER OF TIMES OVER LIMIT
*** . ** %
*** . ** %
SETUP
Figure 8‐21. Maximum Current Log Summary Screen