Basic Operation; Front Panel Description - CyberPower Professional Rack Mount PR750ELCDRT1U Manuel D'utilisation

INSTALLING YOUR UPS SYSTEM (continued)
5. Press the power switch to turn the UPS on. The Power-On indicator light will illuminate. If an overload is
detected, an audible alarm will sound and the UPS will emit one long beep. In order to reset it, turn the unit off
and unplug some equipment from outlets. Make sure your equipment carry a load current within the unit's
safety range, (refer to the technical specifications), and then turn the unit on.
6. Your UPS is equipped with an auto-charge feature. When the UPS is plugged into an AC outlet, the battery
will be automatically charging, even when the unit is switched off!
7. To always maintain an optimal battery charge, leave the UPS plugged into an AC outlet at all times.
8. Before storing the UPS for an extended period of time, turn the unit OFF. Then cover it and store it with the
batteries fully charged. Recharge the batteries every three months or so, to ensure good battery capacity and
long battery life; further, this might also prevent damage to the unit from an unlikely battery leakage.
9. The unit provides one serial port and one USB port to allow connection and communications between the
®
UPS and any attached computer. The primary computer, (the one with PowerPanel Business Edition S/W
installed), is the computer that you will use to control the UPS and make any changes to its operation. When
there is a power failure, the connected to the USB or Serial Port computer may be "asked" by the UPS for a
graceful shutdown following a possible pre-programmed time period delay indicated within the controlled S/W.
10. EPO (Emergency Power Off) Port:
Use the provided gray cable to connect to a special EPO contact switch. Follow the appropriate circuit diagram
below to wire the cable to your EPO configuration. The EPO remote switch is a switch installed in an outside
area, connected to the unit via an ordinary RJ-11 phone line. In case of an emergency, it can be used to
immediately cut-off power from the UPS unit.

BASIC OPERATION

FRONT PANEL DESCRIPTION

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1. Multifunction LCD Readout
An LCD that shows various UPS information using icons and messages.
2. Power On Indicator
Indicates that the AC utility input power's condition is normal and that the UPS outlets are providing power, free
of surges and spikes.
3. Power Switch
Master on/off switch for equipment connected to the UPS.
4. LCD Readout Toggle Button
Used to select among a variety of information the LCD can display.
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