Liebert PowerSure PSA User manual

POWER AVAILABILITY
PowerSure™ PSA
USER MANUAL
350-1000 VA
120V

i
TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . 1
INTRODUCTION & SYSTEM DESCRIPTION . . . . . . . . . . . . . . . . . 4
Front View of UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Rear View of UPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
MAJOR COMPONENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Transient Voltage Surge Suppression (TVSS) & EMI/RFI
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Automatic Voltage Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Bi-Directional Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
WHAT’SINCLUDED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
CONTROLS AND INDICATORS. . . . . . . . . . . . . . . . . . . . . . . . . 11
ON/OFF/Alarm Silence Button . . . . . . . . . . . . . . . . . . . . . . . . 11
Status Indicators: Utility, Battery, Fault. . . . . . . . . . . . . . . . . 12
Utility Indicator (Green/Amber) . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Battery Indicator (Green/Amber) . . . . . . . . . . . . . . . . . . . . . . . . . 12
Fault Indicator (Red/Green) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Location and Status of Indicators . . . . . . . . . . . . . . . . . . . . . . . . . 12
Site Wiring Fault Indicator (Red) . . . . . . . . . . . . . . . . . . . . . . . 13
Transfer Voltage Selectors (DIP Switches). . . . . . . . . . . . . . . . 13
MODES OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Normal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Buck/Boost Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Battery Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
COMMUNICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
DB-9 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Remote Shutdown Via the DB-9 Connector . . . . . . . . . . . . . . . 17
Shutdown Via Pins 5 & 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Shutdown Via Pins 4 & 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
USB Interface Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Data Line Protection Connectors . . . . . . . . . . . . . . . . . . . . . . . 17

ii
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Cleaning the UPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Maintaining Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Battery Replacement Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . 19
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Guide to Status Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Troubleshooting Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Battery Run Times. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Product Warranty Registration. . . . . . . . . . . . . . . . . . . . . . . . . 23

1
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important safety instructions that should be fol-
lowed during the installation and maintenance of the Uninterruptible
Power System (UPS) and its batteries. Please read this manual thor-
oughly before attempting to install or operate this UPS.
Read all safety, installation, and operating instructions before operat-
ing the UPS. Adhere to all warnings on the unit and in this manual.
Follow all operating and user instructions.
This equipment is designed for Commercial, Industrial or Residential
use. Liebert Corporation neither recommends nor knowingly sells this
product for use in life support applications or with other designated
critical devices.
This equipment can be installed and operated by individuals without
previous training.
!WARNING
SAFETY PRECAUTIONS
• To prevent the risk of fire or electric shock, install the UPS
in a temperature and humidity controlled room, free of
conductive contaminants, moisture, flammable liquids,
gases and corrosive substances.
• Operate the UPS only from a properly grounded (earthed)
120VAC, 60Hz AC supply.
• To reduce the risk of electric shock, do not remove the
cover, as it has no user-serviceable parts inside except the
internal battery pack. Some components are live, even
when AC power is disconnected. For service, contact a
qualified technician.

2
Provided are a Liebert MultiLink cable and a USB cable for connec-
tion to a computer. Do not use the Liebert MultiLink cable for other
applications. Store in a safe place if not required at this time.
When using the communication features on this UPS, ensure the
cabling connected to the DB-9 or UPS communications ports are kept
separated from the power leads to the UPS input and output.
!CAUTION
Although your UPS has been designed and manufactured to
assure personal safety, improper use may result in electrical
shock or fire. To ensure safety, please observe the following
rules:
• Turn off and unplug your UPS before cleaning. Do not use
liquid or aerosol cleaners. A dry cloth is recommended to
remove dust from the surface of your UPS.
• Do not install or operate your UPS in or near water.
• Do not place your UPS on an unstable cart, stand or table.
• Do not place your UPS in direct sunlight or near heat
emitting sources.
• Never block or insert any objects into the ventilation holes
or other openings of the UPS. Keep all vents free of dust
accumulation that could restrict airflow.
• Do not place the UPS power cord in any area where it may
be damaged by heavy objects.
• Placing magnetic storage on the top of the UPS may result
in data corruption.
!CAUTION
If your UPS demonstrates any of the following conditions,
turn off and unplug your UPS from the outlet and contact
your local dealer, Liebert representative, or Liebert
Worldwide Support Group.
• The power cord is damaged.
• Liquid has been spilled on the UPS.
• The circuit breaker or fuse opens frequently.
• The UPS does not operate in accordance with the user
manual.

3
CONDITIONS OF USE: The input receptacle must be within 6 feet
(1.8 meters) of the UPS.
Your UPS provides conditioned power to connected equipment. Maxi-
mum load must not exceed that shown on UPS rating label. If uncer-
tain, consult your local dealer, Liebert representative or the Liebert
Worldwide Support Group.
The equipment can be installed and operated by individuals without
previous training.
!CAUTION
BATTERY HANDLING PRECAUTIONS
Servicing of batteries should be performed or supervised by
personnel knowledgeable of batteries and required
precautions. Keep unauthorized personnel away from the
batteries.
A battery can present a risk of electrical shock and high
short-circuit current. The following precautions should be
observed when working on batteries:
• Remove watches, rings, and other metal objects.
• Use tools with insulated handles.
• Do not dispose battery or batteries in a fire. The battery
may explode.
• Do not open or mutilate the battery or batteries. Released
electrolyte is harmful to skin and eyes. It may be toxic.
• When replacing the battery, use same number and type of
battery as the suitable recommended type of battery listed
in specification table in back of this manual.
• Handle, transport and recycle batteries in accordance with
local regulations.

4
INTRODUCTION & SYSTEM DESCRIPTION
Congratulations on your choice of the Liebert PowerSure™ PSA Unin-
terruptible Power System (UPS). It provides filtered AC power to sen-
sitive electronic equipment and other critical loads.
The PowerSure PSA is a line-interactive UPS designed for an office
environment. It provides perfect power protection for PCs, point-of-
sale systems, network and similar electronic equipment. It offers a
configurable input voltage window allowing you to precisely match
your equipment’s input power. Three communications options are
available: serial connection, contact closure and USB. The PowerSure
PSA is available in four (4) sizes: 350, 500, 650 and 1000VA at 120
VAC and 230 VAC.
PowerSure PSA models are available for 120 VAC and 230 VAC sup-
ply voltages and loads. Please verify that this model matches your AC
Utility and load voltage requirements.
NOTE
This device complies with part 15 of the FCC Rules.
Operation is subject to the following two conditions: (1) This
device may not cause harmful interference, and (2) this device
must accept any interference received, including interference
that may cause undesired operation.
This equipment uses, generates and can radiate radio
frequency energy and, if not installed and used in accordance
with the instructions, may cause harmful interference with
radio communications. However, there is no guarantee that
interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the UPS and the receiver.
• Connect the UPS into an outlet on a circuit different from
the one on which the receiver is connected.

5
Front View of UPS
PowerSure PSA
PowerSure PSA
Power ON/OFF/
Alarm Silence*
Battery Indicator*
(Green/Amber)
Fault Indicator*
(Red/Green)
Utility Indicator*
(Green/Amber)
* For details, see
Controls and
Indicators section

6
Rear View of UPS
6-ft. (1.8m)
power cord
Input circuit
protector
Orange output
receptacles*
Battery backup +
surge protection
Black output
receptacles (2)*
Surge protection
only
Site Wiring Fault
Indicator (Red)**
Data Line Protection
Connectors (2)***
Phone/Fax/DSL/Internet/
Modem devices
Battery cover plate
(on rear of 350 & 500VA
models)
350&500VA
Models
6-ft. (1.8m)
power cord
Input circuit
protector
Orange output
receptacles*
Battery backup +
surge protection
NOTE: Two top
receptacles
included on
1000VA models
only
Black output
receptacles (2)*
Surge protection
only
Site Wiring Fault
Indicator (Red)**
Data Line Protection
Connectors (2)***
Phone/Fax/DSL/Internet/
Modem devices
For details, see:
* Installation section
** Controls and Indicators section
*** Communications section
Battery cover plate
(bottom of unit for
650&1000VA models)
650&1000VA
Models
DB-9
port***
USB
port***
DIP
switches**
DB-9
port***
USB
port***
DIP
switches**

7
MAJOR COMPONENTS
Transient Voltage Surge Suppression (TVSS) & EMI/RFI
Filters
These UPS components provide surge protection and filter electro-
magnetic interference (EMI) and radio frequency interference (RFI).
They minimize surges or interference present in the utility line and
keep the sensitive equipment protected.
Automatic Voltage Regulator
The Automatic Voltage Regulator (AVR) protects connected equip-
ment from power spikes and other abnormalities by raising an under-
voltage (boost) and lowering an overvoltage (buck) as needed. This
keeps the UPS output voltage within the connected equipment’s toler-
ance and accommodates wide utility voltage fluctuations without uti-
lizing the batteries.
Bi-Directional Converter
In normal operation, the Bi-Directional Converter changes utility AC
power into regulated DC power to “float charge” the battery system.
This converter is continuously charging the battery whenever the UPS
is plugged into a power outlet and utility power is within acceptable
limits—even if the UPS is turned OFF.
When utility power fails, the Bi-Directional Converter draws energy
from the battery and inverts it into a regulated stepped sinewave sup-
plying power for equipment connected to the orange receptacles.
Battery
The PowerSure PSA utilizes valve-regulated, nonspillable, lead acid
batteries. To optimize battery life, operate the UPS in an ambient
temperature of 68°-77°F (20°-25°C).
TVSS &
EMI/RFI
Filters
Automatic
Voltage
Regulator
Battery Bi-Directional
Converter
Input Output
G
N
L
G
N
L

8
WHAT’SINCLUDED
The PowerSure PSA is shipped with the following items:
• PowerSure PSA user manual
• MultiLink™ software CD
• MultiLink serial cable (M3LS9P9S), 10-ft. (3m)
• USB cable, 6-ft. (1.8m)
• RJ-11 cord, 7-ft. (2.1 m)
• Warranty card
MultiLink
serial cable
(M3LS9P9S)
10 ft. (3m)
PowerSure PSA
PowerSure PSA
PowerSure
PSA
MultiLink
software CD
USB cable
6 ft. (1.8m)
RJ-11 cord
7 ft. (2.1m)

9
INSTALLATION
This UPS is designed for data processing equipment. Maximum load
must not exceed that shown on the UPS rating label. Do not connect
equipment that could overload the UPS or draw half-wave current
from the UPS, for example: electric drills, vacuum cleaners, laser
printers or hair dryers. Your total load earth leakage current must not
exceed 3.5 mA. Most data processing equipment meets this require-
ment if you use no more than two pieces of equipment. If uncertain
about your load, consult your local dealer, Liebert representative, or
Liebert Worldwide Support Group.
1. Visually inspect the UPS for freight damage. Report damage to the
carrier and your local dealer, Liebert representative or the Liebert
Worldwide Support Group.
2. Decide where to place the PowerSure PSA. Find a location that is
near an easily accessible utility outlet. Install the UPS indoors in a
controlled environment, where it cannot be accidentally turned off.
Place it in an area of unrestricted airflow around the unit, away
from water, flammable liquids, gases, corrosives, and conductive
contaminants. Maintain a minimum clearance of 4 inches (100mm)
on each side of the UPS. Maintain an ambient temperature range of
32°F to 104°F (0°C to 40°C).
3. Plug the PowerSure PSA’s attached 6-ft. (1.8m) power cord into an
AC outlet. Check that the Site Wiring Fault Indicator on the rear is
not illuminated. If it is lit, refer to the Troubleshooting section.
NOTE
UPS operation in temperatures above 77°F (25°C) reduces
battery life.
Plug this type of equipment into black
receptacles ONLY
Plug computers, monitors & network hubs
into orange receptacles
Inkjet
printer
Scanner Fax
machine

10
4. Plug any computers and monitors into the orange battery backed up
receptacles.
Other office machines that do not exceed the capacity of the UPS—ink-
jet printers, scanners and fax machines—may be plugged into either of
the two (2) black receptacles, which provide surge protection only.
5. Connect Phone/Fax/DSL/Internet/Modem devices to data line connectors.
6. Press and release the ON/OFF/Alarm Silence button to turn on the
UPS. The UPS will beep and the Utility Indicator will illuminate
(green).
7. Turn on connected equipment.
8. Communication options (see Communications section for details):
Option 1—Serial Communications
Serial communications provides parametric data, for example,
input voltage and battery voltage.
a. Connect Multilink serial cable included with the UPS to commu-
nications port.
b. Install the MultiLink software—the software and installation
instructions, as well as the user manual, are on the CD included
in the PowerSure PSA package.
Option 2—Contact Closure Communications
Contact Closure communications provides on-battery and low-bat-
tery signals for orderly shutdown.
a. Refer to the MultiLink user manual for instructions on making
your own contact closure cable.
b. Install the MultiLink software—the software and installation
instructions, as well as the user manual, are on the CD included
in the PowerSure PSA package.
Option 3—USB Communications
a. Connect USB cable provided with the UPS to the USB ports on the
PSA and your computer. The PSA will work automatically with your
built-in power management software on Windows XP and 2000 and
Mac OS 10.2 or later (see USB Interface Port section for details).
Serial port for MultiLink cable connection

11
CONTROLS AND INDICATORS
ON/OFF/Alarm Silence Button
This button controls output power to the
connected load and has three functions:
•ON
•OFF
• Alarm Silence
ON When the UPS is off, pressing and releasing the main ON/
OFF button will start the UPS, and an audible alarm sounds
briefly. The UPS is capable of starting on battery (battery
start).
OFF When the UPS is on (in either Normal or Battery mode),
pressing the main ON/OFF button for more than
two (2) seconds will shut down the UPS. An audible alarm
sounds briefly.
Alarm
Silence
When a UPS alarm is active, pressing and releasing the
main ON/OFF button will silence the active audible alarm,
whether utility power is present or not. Once the alarm
silence function has been activated, all active audible
alarms—except for low battery, overload, or over-tempera-
ture conditions—will remain silenced until a new alarm con-
dition is detected.
NOTE
Do not hold ON/OFF button down for more than 2 seconds
or the UPS will shut down.
PowerSure PSA
PowerSure PSA
ON/OFF/Alarm Silence

12
Status Indicators: Utility, Battery, Fault
There are three (3) status indicators on the front of the UPS (Utility,
Battery and Fault), as shown in the diagram below. Each indicator
illuminates to specify the status of the UPS (see Troubleshooting
section for details).
Utility Indicator (Green/Amber)
The Utility Indicator illuminates when the UPS is operating and sup-
plying power to connected loads: green indicates Normal mode, amber
denotes Buck/Boost mode.
Battery Indicator (Green/Amber)
The Battery Indicator illuminates to indicate the UPS is operating on
battery (green) or to signify a battery warning (amber).
Fault Indicator (Red/Green)
The Fault Indicator illuminates when the UPS detects a problem: red
for an internal UPS fault, green for overload and over-temperature
conditions.
Location and Status of Indicators
Fault Indicator
Green: Overload/Over temperature
Red: UPS fault
Utility Indicator
Green: Normal operation
Amber: Buck/Boost mode
Battery Indicator
Green: On battery
Amber: Battery warning
NOTE
See Troubleshooting section for details.

13
Site Wiring Fault Indicator (Red)
The Site Wiring Fault Indicator on the rear panel, as shown below,
illuminates red when the UPS detects a line-neutral reversal or a poor
neutral-ground. (Refer to Troubleshooting Chart if this indicator is
illuminated.)
Transfer Voltage Selectors (DIP Switches)
The two-position DIP switch control on the rear panel, shown above,
allows the operator to select the utility transfer voltage at which the
UPS will switch to battery power. DIP switch positions for each volt-
age setting are as follows:
DIP switch settings
Left Right Nominal utility Setting
↑Up ↑Up 120VAC 85 - 145VAC (default)
↑Up ↓Down 110VAC 78 - 138VAC
↓Down ↑Up 127VAC 90 - 150VAC
↓Down ↓Down 120VAC 85 - 145VAC
!CAUTION
Never change the voltage settings while the UPS is ON and
powering connected loads. Change DIP switches only when
the UPS is OFF.
!CAUTION
To ensure protection of the connected equipment, the DIP
switch settings should match the nominal utility input
voltage. DIP switch settings not matching the nominal
utility could potentially damage connected equipment.
Rear of UPS DIP Switches
Site Wiring Fault
Indicator (Red)

14
MODES OF OPERATION
Normal Mode
During Normal mode operation, the PowerSure PSA supplies condi-
tioned, computer-grade power to the connected equipment: utility
power passes through the TVSS circuitry and the EMI/RFI filters and
then through the Bi-Directional Converter to connected equipment.
When the UPS is in Normal mode, the Utility Indicator illuminates
green.
The PowerSure PSA continuously monitors the batteries to maintain
them in a fully charged state. The battery charger operates whenever
AC power is present, even if the UPS is switched off. By default, the
UPS is set to perform an automatic battery test after it has been oper-
ating continuously for two (2) weeks. The interval at which the UPS
will perform a battery test can be configured via MultiLink.
Buck/Boost Mode
The Automatic Voltage Regulator (AVR) circuitry compensates for
fluctuations in utility power, such as voltage surges and sags. When
the PowerSure PSA detects an abnormality, it raises the undervoltage
(boost) or lowers the overvoltage (buck) as needed. The AVR operates
automatically and maintains the output voltage to the connected criti-
cal equipment, without utilizing the batteries.
When the UPS is in Buck/Boost mode, the Utility Indicator illumi-
nates amber.
Utility Indicator (Green)
Utility Indicator (Amber)

15
Battery Mode
The UPS switches to Battery mode in the event of an extreme voltage/
frequency condition or complete utility failure. The battery system
supplies power through the Bi-Directional Converter to generate
power for connected equipment.
When the UPS is in Battery mode, the Battery Indicator illuminates
green and an alarm sounds every 10 seconds.
When a low battery condition occurs, the Battery Indicator changes to
flashing amber and the alarm sounds every half-second. Low battery
warning is defaulted to two (2) minutes but can be configured via Mul-
tiLink. For more information, refer to Troubleshooting section.
!CAUTION
Turning off the UPS while in either Normal mode or Battery
mode will result in the loss of output power.
NOTE
Once utility power is restored, the UPS resumes normal
operation. At this time, the battery charger begins recharging
the battery. The UPS is capable of OFF-State charging, i.e.,
with utility power, the UPS will charge the batteries as long
as it is plugged in.
Battery Indicator (Green)
Battery Indicator (flashing Amber)

16
COMMUNICATIONS
DB-9 Connector
The UPS has a DB-9 (9 pin female) connector on the rear to allow UPS
status communications with a computer system running MultiLink™
software. The DB-9 is capable of supplying serial communication, on
battery and low battery signals. MultiLink, Liebert’s UPS monitoring
and shutdown software, is shipped with the UPS, along with a
10 ft. (3m) DB-9 cable required for running MultiLink.
When MultiLink is installed on the host computer, the UPS can signal
“on battery” and “low battery” using opto-couplers. When the UPS is
operating in Battery mode, it can receive a signal from the host com-
puter system that will shut down the UPS (after gracefully shutting
down the operating system on the host computer system) when the
remaining battery run time is low. The timing of the signal depends
on MultiLink’s configuration settings. This shutdown signal
(5-12VDC) must have a duration of at least 2 seconds for the UPS to
be shut down. The UPS communicates via serial communications
using Liebert ESP II protocol.
* Maximum voltage and current on Pins 1, 7, 8, and 9 is 55VDC; 10.0 mA.
DB-9 Pin Assignment Description
1 Low Battery (open collector)
2 UPS TxD (typical RS-232 levels)
3 UPS RxD (typical RS-232 levels)
4 Battery Mode Shutdown (5-12VDC, 10-24 mA max)
5 Common
6 Any Mode Shutdown (short to Pin 5)
7 Low Battery (open emitter)
8 Utility Fail (open emitter)
9 Utility Fail (open collector)
DB-9 Pin Assignment Collector to Emitter*
54321
6789 (+) Open
Collector
(-) Open
Emitter