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short period of time. Should you receive a “FAIL-DIAGNOST” message, you should immediately call for
service. If service can not be immediately obtained, power down your loads and turn the UPS transfer
switch counter-clockwise to the “ON BYPASS” position via the “OFF IDLE” and “OFF” positions. When
in the “ON BYPASS” position, you may turn your loads back on. When in the “ON BYPASS” position,
your loads will not be protected from any outages on the utility; however, you are better off connected
to the utility than to a UPS without batteries. Your loads may be able to ride through short blips in the
utility whereas the UPS may attempt to go off line and use its batteries to support the load. Since such
an attempted use of the batteries is not possible, this action will result in an immediate shutdown of
your load. Service should be contacted as soon as possible.
Any other message appearing after ”RESULT=” indicates that the test was aborted for some other
reason. For example, if you should terminate the test early, the message “OPERATOR ABORT” will be
displayed. These other messages only indicate that the test could not be completed and that the test
results are inconclusive as to the status of the batteries.
Other information that appears on this display are maximum and average battery amps pulled from the
battery during the test, the minimum battery voltage seen during the test, the battery charge percentage
at the start of the test, and the minimum battery charge percentage seen during the test. Even if the
charge percentage does not drop to below 20% to cause a test failure, a charge percentage dropping
to below 60% may indicate that your batteries are in need of replacement. Should such a percentage
be observed, service should be contacted to determine if your batteries should be replaced. Conclusive
results may be obtained only if the battery charge percentage is above 90% prior to starting the test.
On the last line of this display, you may select one of three options. If a battery test is not already in
progress, the “1)START” option will appear in normal video and the “0)STOP” option will appear in
reverse video, indicating “1” is a valid selection while “0” is not. Press the “1” key followed by the
<ENTER> key to start a battery test. If conditions are not right for performing a test, an error message
will be displayed. If the test can be performed, the “1)START” option will change to reverse video and
the “0)STOP” will change to normal video, indicating “0” is now a valid selection while “1” is not. If the
“0” key is entered followed by the <ENTER> key, the battery test will stop, and the “OPERATOR
ABORT” message will appear next to the “RESULT=” label on the display. While performing a battery
test, the 4
th
line of the display will show the present battery voltage, current , and charge percentage
instead of the “RESULT” message. All other data is dynamically updated as the test proceeds. Once
the test concludes, the “RESULT” message will again appear. A third option “2) CHANGE DURATION
=” indicates the duration that the manual battery will run. By selecting “2”, you may change the test
duration to 1, 2, 3, 4, or 5 minutes. Refer to section 8.4 for additional information concerning battery
testing.
5.3.5 SELECTABLE PARAMETERS Screen
This screen has the programmable parameters by which the UPS is to be operated. ONLY A
QUALIFIED OPERATOR SHOULD MAKE ANY CHANGES IN THIS SCREEN! The setting is displayed
with a selection number and the current value. To change a setting, enter the number of the setting
following by the ENTER key. A prompt will appear at the bottom of the screen that will allow you to
enter a new value. The range for each setting is displayed in parenthesis in the setting’s description. To
abort changing a value, press the ESCAPE key any time during the data entry prompt. Once all of the
necessary changes have been entered, press the <ESCAPE> key to save all of the changes made. To
exit the screen without saving any of the changes, press the <SELECT> key to return to the main menu
screen. To make sure parameters were entered correctly, go back to the display and verify their
correctness.
