Liebert PB Series User manual

Dear Customer,
Please accept our thanks for giving us the privilege to serve you by
choosing a Liebert make ‘UPS’.
If this is your first Liebert UPS, we hope it is the beginning of a long
relationship which delivers value to your organisation. If you already
own and use a Liebert product, we are doubly honoured by your decision
of continuing this relationship.
It is our constant endeavor to partner you for the growth and success of
your business. This philosophy is reflected in our Mission statement
“To deliver value through Air & Power Quality solutions to achieve
customer delight”. Please do give us feedback to help us realize our
Mission.
Emerson Network Power (India) Private Limited

IMPORTANT
This manual contains information concerning the installation, operation and
maintenanceofthePowerbankUPS.
Allrelevantpartsofthemanual shouldbereadprior tocommencinginstallation.
ThisUPS has beendesignedforCommercial/ Industrialuseonly.
ThisUPShasnotbeendesignedfordirectuseinanylifesupportapplication.
Ifyou encounteranyproblemwith theprocedurescontainedin thismanualyou
shouldseekimmediateassistancefromEmersonNetworkPower(India)Pvt.Ltd.
SalesOfficefromwhomtheequipmentwaspurchased.Alternativelycontactthe
EmersonNetworkPower(India)Pvt.Ltd.CustomerService&Supportdepartment
attheaddressshownbelow:
EMERSONNETWORKPOWER(INDIA)PRIVATELIMITED
PlotNo.C-20,RoadNo.19,
WagleIndustrialEstate,
Thane-400 604, INDIA.
Phone :[phone]
5828405
Fax :[phone]
5828358
EmersonNetworkPower(India)PrivateLimitedpursuesapolicyofcontinualproduct
developmentandreservestherighttochangetheequipmentwithoutnotice.
@ Copyright 2001 by Emerson Network Power
Unauthorized reproduction prohibited
Allrights reserved

ZONAL OFFICES
MUMBAI
B 414-424, Bhaveshwar Arcade,(opp. Shreyas cinema),
LBS Road,Ghatkopar(W), MUMBAI - 400 086
Tel : [phone]
Fax : [phone] Pager : 9623-988 000
Mobile : [phone]
NEW DELHI
18/14, WEA, Pusa Lane, Karol Buag;
NEW DELHI 110 005.
Tel : [phone],
5744774, 5757601 Pager : 9632-100 300
KOLKATA
77 A, Raja Basant Roy Road,
KOLKATA - 700 029
Tel : 033 - 4646387, 4647197
Fax : [phone]
BANGALORE
15-17-19, Sri Lakshmi Complex, 3rd floor;
St. Mark’s Road, BANGALORE - 560 001.
Tel : (080) - 55994543, 5598825, 5581448
Pager : (080) 96239888000 Fax : 080 - 558 8546
EMERSON NETWORK POWER (INDIA) PRIVATE LIMITED
Plot No. C-20, Road No. 19,
Wagle Industrial Estate,
Thane - 400 604, INDIA.
Phone :[phone]
5828405
Fax :[phone]
5828358
REGISTEREDAND HEAD OFFICE

BARODA
39/2, Arunodaya Society,
Alkapuri, BARODA-390 005
Tel : [phone], 330383
Fax : [phone], 330383
CHANDIGARH
SCO-198 / 199 / 200,
Sector - 34A, Near Labour Chowk,
CHANDIGARH
Phone : [phone]
Mobile : [phone]
CHENNAI
No. 22, First Floor,
Gopal Krishna Road,
T. Nagar, CHENNAI - 600 017.
Tel : [phone]
Fax : [phone]
COCHIN
Lakshmini No. 36 / 2684,
Veluthamma House, Azad Road,
Kaloor, COCHIN - 682017
Tel : 0484 - 341985
Fax : 0484 - 341986
GOA
622 / A, La Citadel Colony
Dona Paula, GOA - 403 004
Tel : c/o. 0832 - 220 723
GUWAHATI
South Savania, Ashram Road,
Ulubari, GUWAHATI 781 007
Tel : 0361 - 543848
Fax : 0361 - 543270
Mobile : [phone]
BRANCH OFFICES
JAMSHEDPUR
Kashi Kunj, Road No. 2, Gr. Floor
Contractor’s area, Bistupur;
JAMSHEDPUR - 831 001
Tel : 0657 - 437549
Fax : 0657 - 437549
LUCKNOW
206, Sriram Tower, Ashok Marg
LUCKNOW
Phone : [phone]
Pager : 9628 - 555091
Mobile : [phone]
NAGPUR
203, Ganga Apts.,
13, Giripeth
NAGPUR 400 010.
Phone / Fax : 0712 - 540423, 548551
PUNE
B-6, Shri Dwarka co-op. Society,
467/C1, Hare Krishna Mandir Path,
Model Colony, Off University Road,
PUNE - 411006
Tel : 020 - 5676975, 5670709
Fax : 020 - 4004020
SECUNDARABAD
Plot No. 4, Sardar Patel Road
SECUNDARABAD - 500 003.
Tel : 040 - 7717263, 7719196
Fax : 040 - 7806502

PowerbankOnlineUPS
PB Series - 3kVA/6kVA
UserManual
EMERSON NETWORK POWER (INDIA) PRIVATE LIMITED

5
INDEX
SECTION DESCRIPTION PAGE NO.
1IMPORTANT SAFETY 6
INSTRUCTIONS
2. INTRODUCTION 8
3. INSTALLATION 10
4. CONTROL & INDICATION 13
5. OPERATING INSTRUCTIONS
A. DETAILED PROCEDURE 16
B. STARTUP PROCEDURE / 18
QUICK REFERENCE
6. TESTING THE UPS 20
7. OPERATION 21
8. MAINTENANCE 22
9. SPECIFICATION OF UPS 24

6
1. IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS ----------
This manual contains important instructions that should be followed
during installation and maintenance of the UPS and batteries. All of
the data contained in this manual is very important to the proper
operation and long term reliability of the UPS. Please read this manual
thoroughly before attempting to unpack install, and operate the UPS.
1.1 WARNING
1. To reduce the risk of fire or electric shock, install UPS and
batteries in a temperature and humidity controlled indoor area
which is free of conductive contaminants.
2. Risk of electric shock, Do not remove cover. No user
serviceable parts inside. Refer servicing to qualified service
personnel.
3. Risk of Electric shock---- Battery circuit is not isolated from ac
input, hazardous voltage may exist between battery terminals
and ground. Test before touching.
4. Risk of electric shock. Hazardous live parts inside this UPS are
energized from the battery supply even when the input ac power
is disconnected.
5. To reduce the risk of fire, replace only with same type and rating
of fuse.
1.1 Important Safeguards
Your UPS has been engineered and manufactured to assure your
personal safety, but improper use can result in potential electric shock
or fire hazards. To maintain the safeguards incorporated in this unit
observe the following basic rules :
*Turn off and disconnect your UPS from the utility before
cleaning. Do not use liquid cleaners or aerosol cleaners. A
damp cloth may be used to remove any dust or smudges which
occur on the outer surface of your UPS.

7
*Do not install or operate your UPS near water.
*Do not locate your UPS on an unstable cart, stand or table.
*Move the UPS and its supporting cart, stand or table with care.
Quick stops, excessive force and uneven surface may cause the
UPS and its support to overturn.
*Openings on the sides of the UPS cabinet must not be blocked
or covered and air flow through the Openings must not be
obstructed.
*Your UPS should be operated only from the type of power
source indicated on the marking label. For operating form
battery power, refer to the operating instructions (Section -6).
*Follow all warnings and instructions marked on your UPS.
*Do not overload the commercial ac outlet and/or extension wires
used with your UPS.
*Never push objects of any kind into the UPS cabinet opening or
spill liquid of any kind on your UPS.
*Do not attempt to service the UPS yourself, as there are no
user serviceable components inside. Refer all servicing to
qualified service personal.
Turn off and disconnect your UPS from the utility, and contact qualified
service personal under the following conditions :-
*If liquid has been spilled on the UPS.
*If the UPS has been exposed to rain or water.
*If the UPS does not operate normally by following the operating
instructions.
*If the UPS has been dropped or the cabinet has been damaged.
*When the UPS experiences a distinct change or degradation of
service.

8
2. INTRODUCTION
2.1 Purpose of your Uninterruptible Power System
(UPS)
This Uninterruptible Power System is designed to provide a continuous
supply of usable 220 Volt AC as power to computer and other
electronic equipments during irregularities or failures of commercial AC
power. The UPS protects against AC power line irregularities such as
blackouts, sags, spikes and electromagnetic and radio frequency
interference.
When commercial AC line voltage levels are acceptable, the UPS
operates with very high efficiency, filters noise and spikes before the
power is delivered to its load (s). Should the commercial AC
experience irregularities or fail completely, the UPS supplies a
continuous sine-wave AC load power by utilizing the battery-fed
inverter. The UPS will supply a load of 3000/5000/6000VA UPS from
its external battery bank. The UPS provides AC power protection,
allowing continued operating though most commercial power
disturbances and an opportunity to secure data and safely shut down
systems in the event of an extended outage.
2.2 FEATURES OF THE UPS
The UPS system is designed to provide commercial AC power
protection for computers, peripherals and equipment used in business,
office and laboratory environments. Their performance and features
have been designed to ensure the utmost in AC power protection for
the load (s) as well as ease of use and unobtrusive operation. The
features include :
*Detection of AC utility blackouts and sags
*Spike suppression
*Attractive office styling
*Automatic restart after low battery shutdown
*Easily accessible front panel controls
*Inverter overload protection
*Computer interface card
*Audible alarm
*Cold-start feature
*Optional shutdown software support.
*Built in input over voltage protection

9
2.3 Design Concept
The figure below shows the block diagram of the UPS.
BYPASS
#
INPUT RECTIFIER INVERTER STATIC SW OUTPUT TO
CRITICAL LOAD
ISO
TXR CHARGER
# -This shorting link is removed when connected
with separate bypass source.
BATTERIES
The input to the UPS is 230 V, single phase supply. This is converted into DC
power by the rectifier circuit for the inverter. The inverter in turn converts this
DC power into AC for the critical loads.
The batteries are independently charged from the input AC. In the event of
loss of input AC, the batteries takes over and feeds the inverter.
The static switch serves as a dynamic bypass and connects the input /
bypass supply in the event of inverter failure or overload.

10
3. INSTALLATION
WARNING : IMPROPER INSTALLATION WILL NULLIFY
WARRANTY
3.1 Unpacking and Inspection
When unpacking the UPS shipping carton you will find the following contents
and enclosed in a waterproof bag.
*The UPS itself
*User Manual
The spares part consists of the fuse for replacement when necessary.
Remove the unit from its shipping carton and examine it for damage or
moisture. Do not try to operate the UPS if it appears damaged. Save the
original shipping carton and contact your nearest sales office for instructions.
3.2 Locating the UPS
The UPS is designed to be a free standing unit and is intended to be located
in a controlled environment. Ensure that air flow through the openings is not
hindered or obstructed. Obstructing the free flow of air could cause the UPS
to overheat.
CAUTION : The UPS cabinet is not rated to support weight. Never
stock material or stand on the UPS. Never position the UPS
on its side or upside down.
3.3 CONNECTING THE UPS TO COMMERCIAL AC
IMPORTANT: The UPS shall be installed by qualified technician or
electrician in accordance with the electrical codes for the
area where it is installed and operated.
CAUTION: Ensure that the voltage and frequency of the input
AC power are within the specifications of the UPS
and that the combined loads do not exceed the total
power for the UPS.

11
IMPORTANT: Select the right power wire according to the
recommended wire selection table 1 (Page 14) and
connection diagram as per Figures 1 & 2 (Page 10 & 11).
DANGER : The unit should be supplied by grounded source.
DO NOT operate the unit without ground source.
CAUTION: High DC voltage present on the battery connector
when battery circuit breaker is turned on. DO NOT
touch these battery connectors.
CAUTION: Use digital multimeter (DMM) to make sure the
battery voltage and polarity is correct. Wrong polarity
will cause damage to UPS. For easy identification
the line and positive terminations are red in colour &
neutral and negative are black in colour.
CAUTION: DO NOT connect input wires of UPS to a 15 amp wall
receptacle. The input current requirements of the
UPS exceed the current rating of the wall receptacle.
Connect the UPS to an utility panel whose
current rating is suitable. It is highly recommended
that use of circuit breaker in the wiring system to
gain better protection.
All wiring for the UPS should be done by an qualified
electrical technician since high voltage may be
present.
Ensure that input circuit breaker and battery circuit
breaker are in off position before connecting input
wires and battery wires to UPS.
The connectors are located at the rear section of the UPS inside the lower
rear panel. The protective panel must be removed for access by loosening
the appropriate screws (see Page 13 Fig.3). Table 2 (in page 16) shows
input and output currents for each rated voltage.
Be sure to follow all pertinent local electrical codes when selecting the
wiring.

12
L N N L U4 L N
INPUT BYP. OUTPUT BATTERY
+
-
EXTERNAL CONNECTION APPANGMENT
SHORTING LINKS
FIG 1 : COMMON BYPASS ARRANGEMENT
L N N L U4 L N
INPUT BYP. OUTPUT BATTERY
+
-
FIG 2 : SEPARATE BYPASS ARRANGEMENT

13
4. CONTROLS & INDICATIONS
Fig. 3 (Page 13) illustrates the control, indications and terminals on the UPS, also
explained in the following paragraphs :-
A. AC IN
This indicator illuminates when the incoming utility power is available.
B. FAULT
This indicator illuminates under following conditions :-
1. D.C. under voltage.
2. Inverter output under voltage.
3. Inverter output over voltage.
4. Equipment over temperature.
5. Inverter overload.
An audible alarm will also be ON.
C. BATTERY CAPACITY INDICATOR
This indicates the charging status of the battery bank.
D. INVERTER
This indicator illuminates when the inverter comes ON and inverter voltage is
within the limit.
E. BYPASS
This indicator illuminates when the output power is supplied from the bypass
source.
F. LOAD CAPACITY INDICATOR
Each segment is indicating the load of 20%. The red LED on the last
indicates the overload on the UPS.
G. ON/OFF SWITCH
After turning on the input circuit breaker and the battery breaker, turning ON
the ON/OFF switch will cause the inverter to become ON and transfer of the
load from bypass will take place. Turning-off the ON/OFF switch will cause
the load to be transferred from the inverter output to the bypass source and
inverter will become off.
H. FAN
ISTATIC SWITCH AND CHARGER INPUT CIRCUIT BREAKER
J. COLD START SWITCH
See Section 7.3 for the detailed function of this switch.
K. LED
L. EXTERNAL CONNECTION ARRANGEMENT
IP-L, IP-N-Input Connections
U4, N4 -Should be used only if common bypass
Is required.
BYP-L, BYP-N-Bypass connections
OUT-L, OUT-N-Output connections.
BAT+, BAT--Battery Connections.
M. BATTERY CIRCUIT BREAKER
N. INPUT CIRCUIT BREAKER
O. FUSE This protects the control supply of high line transfer circuit.

14
FHHGG
FHHGG
FHHGGGJHJHJKJKJIUHYGY
FHHGG FHHGG
FHHGGKJHJJ
PS 3000
Liebert
FIG. - 3
POWER BANK UPS SERIES
425
502
A
B
C
D
E
F
G
AGS JHJKJK
AGS JHJKJK
5
5
0
H
I
J
K
O
P
N
M
FRONT VIEW
REAR VIEW

15
Table 1-Wire Selection Guide
Note 1. Based on ambient temperature of 30°C(86°F)
2. Rated 0 to 2000 volts; 65° C and 75°C
3. Not more than three conductors in raceway or cable
or earth (directly buried)
ALLOWABLE CURRENT FOR INSULATED COPPER CONDUCTORS
Temp Rating 65°C (104°F) 75°C(167°F)
Wire Type .TW .FEPW .THWE
.UF .RE .XHHW
.REW .USE
Wire Gauge(AWG) Allowable Current (Amps)
14 18 18
12 20 20
10 34 34
8 40 50
6 55 65
4 70 85
Ambient Temp °C(°F) Correction Factors
above
30 (86) to 35 (95) 0.91 0.94
above
35 (95) to 40 (104) 0.82 0.87
Note : For ambient temperature over 30° C, multiply the current
shown above by the appropriate correction factor to determine the
maximum-allowable load current.

16
5. OPERATING INSTRUCTIONS
A. DETAILED PROCEDURE :
*Before proceeding with the operating instructions ensure that your
UPS has been installed correctly.
*The UPS equipment is provided with easy to use power cable snap on
connectors with 1/3 meter cable length. This is to facilitate quick and
easy installation and uninstallation at any point of time. The connectors
provided with the cable have a free end which should be terminated
by suitable lugs as required by the incoming distribution at site. Figure
-1(Page -10) shows the wiring diagram for the common bypass
configuration (default). Note the shorting connectors for BYP-L, U4 &
BYP-N, N4. This will connect the incoming utility as the bypass source.
Figure –2 (Page –11) shows the wiring diagram for separate bypass
connection. In this case the shorting connectors are to be removed
and the separate bypass output is to be connected BYP-L, BYP-N.
Caution : Do not connect any wires to U4-N4 in a separate bypass
configuration. This may lead to short circuit of the input
sources.
*After properly connecting the UPS to the utility, turn on the Input
isolator (on the back panel). The “LINE” and “BYPASS” indicators
should be lighted. This indicates that the UPS is being connected to
commercial AC power. Turn on the battery circuit breaker. This will
commence the battery charging.
*Press the “on/off” switch on the front panel. The inverter indicator will
start illuminating. Both “BYPASS” & “INVERTER” indicator will remain
ON for about 20 seconds. After 20 seconds later, the indicator
“BYPASS” will extinguish, the “INVERTER” indicator will continue to
illuminate. When the unit is in normal operation, the output will be
powered from the inverter of UPS.
*Cut off the input AC power (by turning off a breaker / switch on the
utility line, an audible alarm should start to sound intermittently
indicating a loss of incoming AC power. Now the output is supplied
from the battery source.
*Turn on the input AC power and connect load (s) to the UPS. Make
sure that the total load will not exceed the output rating of the UPS
terminals. The UPS will start beeping constantly and FAULT indicator
light if it is overloaded, overheated or low battery voltage is detected.
Disconnect the load and cut off input AC power in such a situation.
Switch of the battery breaker to isolate batteries.

17
*The UPS audible alarm should sound intermittently when the UPS is
operating from the battery source.
*Connect a normal load to the UPS. Turn on the power switch.
Disconnect the input power. Again the audible alarm should sound
intermittently. When the UPS is under the back-up mode, a battery
capacity sensitive beeping indicates the battery power status. It will
beep continuously when low battery status is reached. The UPS will
automatically shut down in one or two minutes to protect the battery
from over discharging under such condition.
CAUTION: The UPS has been provided with a high line transfer circuit
which will cut off the input to the rectifier if it exceeds 275
Volts AC. After initial start-up keep power continuously to
the unit for at least 24 hours to ensure batteries fully
charged. To ensure charging the batteries, the main circuit
breaker and the battery circuit breaker should be left in the
“ON” position. However, the front panel “ON/OFF” switch
can be used as daily run/standby switch. Note that the
output will still be connected to the bypass supply and
inverter will be off.
STORAGE INSTRUCTIONS :
1. Leave equipment connected to input power and turned on for 24 hours
prior to storage.
2. Turn off the main circuit breaker.
3. Store in a cool, dry environment (Below 80° F / 27°C)
4. Remove from storage and repeat step 1 for every 90 days.
TABLE 2-UPS CURRENT RATINGS
UPS RATING 3 KVA 5KVA 6 KVA
INPUT
VOLTAGE 220V 240V 220 V 240 V 220 V 240 V
INPUT
CURRENT 19 A 17 A 32 A 29.5 A 38.4 A 35.2 A
CABLE SIZE 4 mm sq 4 mm sq. 6 mm sq 6 mm sq. 6 mm sq.6 mm sq.
OUTPUT
VOLTAGE 220 A 240 V 220 V 240 V 220 V 240V
OUTPUT
CURRENT 13.6A 1.25A 22.75A 20.8A 27.3A 25A
OUTPUT CABLE
SIZE 2.5 mm sq. 2.5mm sq.
4 mm sq 4 mm sq 4 mm sq 4 mm sq
BATTERY
CURRENT 14.5A 14.5A 23.5A 23.5A 28A 28A
BATTERY
CABLE SIZE 4mm sq. 4 mm sq. 4 mm sq. 4 mm sq. 4 mm sq. 4 mm.sq.

18
a) START UP PROCEDURE -QUICK REFERENCE
STARTING THE UPS ON MAINS
1. Ensure that the input voltage is 230V, 50Hz, single phase.
2. All the wiring connections should be made as under :-
L N N L U4 L N
INPUT BYP. OUTPUT BATTERY
+
-
SHORTING LINKS
3. Initially, connect only the input line, neutral and earth connection.
4. Switch ON the input isolator on the rear panel, the breaker on the left
side as seen from the back of the unit.
5. The fans should start running and the ‘AC’ & ‘BYPASS’ indications on
the front panel should be ON. Please check that two “shorting liks”
BYP-L, U4 & BYP-N, N4 are connected properly. Otherwise, the fans
will not start.
6. Check the DC voltage on the terminal ‘BAT+’ & ‘BAT-’ above (the last
two terminals on the extreme right on the rear panel). The reading on
a DC voltmeter should be greater than or equal to 220 V DC.
a) At this point, the front panel ‘ON/OFF’ switch should be switched ON.
The ‘INVERTER’ LED on the front panel will start glowing gradually to
full brightness. After this action in about 17 seconds clicking sound will
be heard, which will connect the output to the inverter.
b) The battery can now be connected and the battery isolator can be
switched ON now.

19
STARTING THE UPS ON BATTERY (BLACK START)
1. As per the above connection diagram, connect only the battery to the
UPS (Ensure that the batteries are in fully charged condition showing
DC voltage greater than 205 VDC for the entire bank).
2. Switch-on the battery breaker on the rear panel and the front panel
;ON / OFF’ switch. There will be no response from the UPS at this
stage.
3. Now, gently press the red switch on the rear panel. This is black start
switch which is a push button switch. This will initiate the internal
circuitry of the UPS to start on batteries.
4. The response seen from the UPS will be that the ‘INVERTER’ LED will
slowly start to glow. The fans will not start at this instant.
Approximately 17 seconds after this operation a clicking sound of the
relay will be heard. The fan will start to operate and output will be
available from the inverter.
IMPORTANT :-IF THE UPS FAILS TO START BY THE ABOVE
TWO PROCEDURES, THE FIRST LEVEL TROUBLE SHOOTING
WILL BE REQUIRED AS PER THE USER MANUAL.