17
A01-00104 Rev A
4.0 OPERATION
NOTE:
In order to operate the UPM, you must rst plug the battery enable
plug(s) into the battery enable socket(s) behind the front panel of the
UPM.
On/Off Button
The On/Off button is a dual function control:
• When the UPM is off and AC power is present to the UPM input,
pressing the On/Off button for more than 2 seconds will turn the UPM
output on.
• If battery is connected, pressing the On/Off switch for 2 seconds or
more will “cold-start” the UPM on its internal battery with no incoming
AC present.
• When the UPM is on, pressing the On/Off button for more than 2
seconds will turn off the UPM output power.
Test/Silence Button
The Test/Silence button is a dual function control:
• Pressing the Test/Silence button when AC power is present and the
UPM is operating causes the UPM to enter a self test mode in which
it tests both battery and inverter for a few seconds before returning to
the AC supply. We recommend you close all open les before initiating
self-test.
• When AC power fails, the UPM warns you with an audible alarm. The
Test/Silence button is used to silence the alarm. When battery power
begins to run low, the audible alarm will automatically return and beep
at a faster rate.
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