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The Power On/Off database contains information as to each time the UPS output is powered on or
powered off. Information recorded includes date & time when the event occurred. “Powered off”
recordings will also include a reference to shutdown if the UPS output was powered off in any way
other than the transfer switch being rotated to the OFF IDLE or OFF positions. In such cases additional
information about the shutdown can be obtained from the “Shutdown” historical database.
The Shutdown database contains information about each time the UPS output is powered off in any
way other than the transfer switch being rotated to the OFF IDLE or OFF positions. Information
recorded includes date & time when the shutdown occurred and the reason for the shutdown.
The AC Line Fault database contains information about each time the UPS produces an output when
energy from the AC utility is not able to be used. Information recorded includes date & time when the
UPS left the utility, the reason the UPS had to leave the utility, and the length of time that the UPS
continued to produce an output without the help of the AC utility. Note that every time the UPS is
powered up, an event is stored in the “AC fault” database. This is because the UPS powers up using its
battery, then synchronizes to the utility, and then switches over to using the utility. If a utility power
failure occurs, one of several reasons may be recorded. This is because several parameters are
monitored to detect a utility power failure. Depending on which of these is detected first determines the
reason that is recorded. “Hard Current Trip”, phase loss, low rms voltage, or low peak voltage may be
recorded reasons for utility power failures.
The Overload database contains information about each time the UPS is overloaded or experiences an
over-temperature condition. Information recorded includes date & time that the condition started and
duration of the event. Also recorded is the maximum rms current observed during the overload period
on each of the three output phases. If the neutral current remained below 125% rated load during the
overload period, “IN= OK” will be displayed. “IN>125%” will be displayed if it too was overloaded. If an
over-temperature condition did not occur, “OVERTEMP = NONE” will be displayed. If an over-
temperature did occur, “A”, “B”, “C”, an/or “AMB” will be displayed in place of the “NONE” message if
heat sink A, B, C, and/or Control board ambient temperature sensor registered an over-temperature
condition. A “PI” (power imbalance), “CT” (current trips), or “UV=” (undervoltage, followed by AB, BC,
and/or CA referring to which phases were undervoltage) will be displayed if an internal problem
occurred during the overload duration. Call for service if one of these internal problems is detected.
The “Batt Test Q” and “Batt Test C” databases contain results of the last 20 Automatic Quick Battery
Tests and Capacity Battery Tests, respectively. Information recorded includes the date & time that the
test was performed, how long the test lasted, % battery charge at the start of the test and minimum %
charge observed during the test, maximum & average current drawn from the battery during the test,
minimum battery voltage observed during the test, and results of the test. In addition, at the end of the
first line of each record, two numbers appear enclosed in parentheses. The first is the weekday that the
test was programmed to occur on (1 = Sunday, 2 = Monday … 7 = Saturday) and the second is the
hour of the day that the test was programmed to occur. Note that Quick tests done on a daily basis
ignore the weekday information when determining when to perform a test. Refer to section 8.4 for
further information regarding battery testing.
