IBM 500 User Manual page 13

This section contains information on the controls for the UPS 675 USB option.
1 INV ON/INV OFF Button: This button controls your UPS's inverter, and
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has three functions:
Toggle UPS Protection OFF/ON: While the UPS is connected to utility
power, press and hold this button until you hear a beep in order to turn
UPS protection OFF (or ON again). If UPS protection is OFF, the UPS will
only provide power at its outlets while it is receiving utility power: it will
not provide power from battery reserves during a blackout. If you turn UPS
protection OFF, the "Line" LED will flash until UPS protection is turned ON
again.
Shut Down: To turn your UPS completely OFF, first disconnect connected
equipment, then unplug the UPS from AC power, then hold this button
down until you hear a beep. You may also shut the UPS down by holding
this button down until you hear a beep while the UPS is providing battery
backup power.
Cold Start: If your UPS's batteries are charged, you may cold start the UPS
to use it as a stand-alone power supply in the absence of AC power. To do
so, hold this button until you hear a beep.
2 Green "Line" Light-emitting diode (LED): The LED lights continuously
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when the UPS is ON and receiving normal ac power, indicating, that the
battery is charging and connected equipment is receiving power. When ac
power is interrupted, this LED turns off. It will blink if UPS protection is
turned OFF.
3 Yellow "Invert" LED: This LED lights up when the UPS is providing
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power from battery backup.
4 Red "Battery" LED: During inverter operation or after a self-test, this
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LED lights up to indicate that the UPS battery might need replacing. For
more information, see the "Troubleshooting" on page 1-9.
5 Red "Overload" LED: During inverter operation or after a self-test, this
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LED lights up if the UPS is overloaded. For more information, see the
"Troubleshooting" on page 1-9.
6 Mute/Test Button: This button has two functions:
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Silence the Audible Alarm: Press this button to silence the Audible Alarm.
Audible Alarm: The UPS beeps when the UPS is plugged in as it performs a
self-test. The UPS will also beep intermittently when the UPS is in inverter
operation to alert you that it is supplying power from the battery. When the
batteries are about to be depleted, the UPS will sound continuously (and
cannot be silenced), warning you to save open files and shut down your
equipment immediately.
Run Self-Test: While your UPS operating from utility power, press and hold
this button until you hear a beep to run a UPS self-test. The test will run for
about 10 seconds, during which time the UPS will beep and all the UPS
Installation and user's guide
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