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Liebert

®

 PSA

Quick-Start Guide - 500VA/650VA, 230V

I

MPORTANT

 S

AFETY

 I

NSTRUCTIONS

• Do not connect equipment that may overload the UPS or demand half-wave 

rectification, such as a laser printer.

• Connect the UPS only to an earthed / grounded socket that meets electrical safety 

guidelines.

• Locate the UPS near a wall socket. Do not use an extension cord between the UPS and 

the socket.

• Use CE-marked cables only for connections between mains, the UPS and equipment.
• The Liebert PSA has been designed for small office/home office use only; it is NOT 

recommended for use in life-support applications.

• In the event of an emergency, press the OFF button and disconnect the power cord 

from the AC mains to properly disable the UPS.

• Do not attach power strips or surge suppressors to the UPS.
• Do not attempt to service any parts inside the UPS except the batteries. Failure to adhere 

to this could cause personal injury or equipment malfunction and void the warranty.

• For technical support:

• Visit 

www.liebert.com

 or 

• Send an e-mail to 

[email protected]

.

S

ETUP

UPS C

ONTROLS

 

AND

 C

ONNECTIONS

Step 1 Inspect the Package

Inspect the package and the UPS upon receipt. Notify the carrier and dealer of visible 
damage.

Step 2 Decide Where to Place the UPS

The UPS must be placed indoors, protected from water, direct 
sunlight and excessive heat. 

Provide at least 100mm (4") of clearance on all sides of the unit 
for proper ventilation.

Step 3 Charge the UPS Battery Before 

Use

The UPS battery is not charged before shipping. It MUST be charged before use.

• Connect a user-supplied power cord from the UPS to a wall socket and charge for at 

least eight hours.

Note:

 If battery is placed in storage, charge the battery every six months if kept at

-15°C to +29°C (5°F to 85°F)—or every three months if kept at 30°C (86°F) or higher.

Step 4 Start the UPS

After the battery is fully charged:
• Turn on the UPS by pressing the On/Off button (see 

Figure 1

 below). 

LED 1 should be illuminated (green), indicating the UPS is operating in Normal Mode.

Step 5 Connect the Loads

The UPS has three battery backup sockets that 
provide power when the UPS operates on bat-
tery (see 

Figure 2

 below).

• Plug the loads into the battery backup sock-

ets on the rear of the UPS.

Caution:

 Do not connect a laser printer to the 

UPS.

Step 6 Connect the Network Surge Protection

The UPS has two RJ-45 jacks for network lines (see 

Figure 2

 below).

• Connect a single-line network cable into the RJ-45 

network surge protection IN jack on the rear of the 
UPS.

• Connect an RJ-45 cable from the OUT jack on the 

rear of the UPS to a port on a PC or network device such as a router.

Step 7 Set Up Liebert shutdown software

To start using the Liebert shutdown software:

• Install the Liebert shutdown software. See the software 

user manual for installation instructions.

• Connect one end of the USB cable (supplied) to the 

USB port on the rear of the UPS. Connect the other end 
to a USB port on the computer. See the software user 
manual for operating instructions.

USB 

cable

Quick-start 

guide

UPS

Liebert 

shutdown 

software

CD

UPS Status, Alarm Conditions and Alerts

Condition

LED

Color

Solid/Flashing

Audible Alarm

Normal Mode

LED 1

Green

Solid (steady glow)

(None)

Battery Mode

LED 1

Green

Flashes every 3 seconds

Every 3 seconds

Battery Low

LED 1

Green

Flashes every 1 second till end of discharge (EOD)

Every 1 second

Overload

LED 2

Amber

Solid (steady glow) until load drops or breaker trips

Continuous

Battery Replacement

LED 2

Red

Flashes every 1 second for 5 seconds only

Every 1 second for 5 seconds only

Fault

LED 2

Red

Solid (steady glow) until UPS shuts down after 5 seconds

Continuous until UPS shuts down

Battery backup 

sockets (3)

IEC 320 C13

RJ-45 jacks (2) - network 

protection

USB

interface

Surge socket (1)

IEC 320 C13

Mains

breaker

Figure 2 - Rear Panel

AC mains

inlet

!

EMERSON

Network Power

Liebert

®

PSA

AC Power System

LED 2 (red = fault; 

amber = overload)

Fault

symbol

Overload 

symbol

Mains

symbol

On/Off button

LED 1

(green)

Figure 1 - Front Panel LEDs

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