Operation - Ametek 420VA Manual

4.0 OPERATION

NOTE:
In order to operate the UPM, you must first 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 files
before initiating self-test.
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A01-00055 Rev G