Powerware 100160 kVA manual Maximum Current Log, 08/04/2005

Using the Control Panel

9.2.6 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.

NOTE The Maximum Current Log is available only when the mini-CSB is installed.

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 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 9-21 shows the Maximum Current Log Summary screen.

MAXIMUM CURRENT LOG SUMMARY
NUMBER OF TIMES OVER LIMIT	5
LAST LOG RESET	08/04/2005
AVERAGE % OF FULL LOAD	*** . ** %
MAXIMUM % OF FULL LOAD	*** . ** %
TOTAL TIME OVER LIMIT	** MINUTES
LOG	SETUP

Figure 9-21. Maximum Current Log Summary Screen

EATON Powerware® 9390 UPS (100–160 kVA) Installation and Operation Manual S 164201604 Rev B powerware.com 9-19