Gtec NS3000 Series User manual

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NS3000 Series User Manual Rev. 05
UPS NS3000 10-20-30kVA
USER Manual

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NS3000 Series User Manual Rev. 05
Empty Page

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NS3000 Series User Manual Rev. 05
Safety Precautions
This manual is about the installation and operation of NS3000 Series UPS (Hereinafter referred to as
UPS).
Please carefully read this manual before the installation.
The UPS must be debugged and maintained by the engineer commissioned by the manufacturer or the
agent. Otherwise, human safety may be endangered and the damage of UPS shall not belong to the
warranty scope.
UPS is only used for commercial / industrial purpose and cannot be used as power of life support
equipment.
AP
警告
危险
APPLICABLE STANDARD
This product complies with 2014/35/EU -2006/95/EC - CE 73/23 & 93/68 (low voltage safety) and
2014/30/EU, 2004/108/EC 89/336 (EMC) , and EMC standards of Europe, Australia and New
Zealand (C-Tick) , and the following UPS product standards:
*IEC62040-1-General and safety
*IEC/EN62040-2 EMC requirements CLASS C3
*IEC62040-3 Performance requirements and test methods
Continued compliance requires installation in accordance with these instructions and the use of
manufacturer approved accessories only.
警告
危险
WARNING- High earth leakage current
Earth connection is critical before connecting the input supply (include both utility supply and
battery) . This equipment must be earthed in accordance with local electrical authority codes of
practice.
Earth leakage current exceeds 3.5 mA and is less than 1000 mA.
Transient and steady-state earth leakage currents, which may occur when starting the equipment,
should be taken into account when selecting instantaneous RCCB or RCD devices.
Residual Current Circuit Breakers ( RCCBs) must be selected insensitive to DC unidirectional pulses
( class A ) and transient current pulses
Note it that the earth leakage currents of the load will also flow across UPS RCCB or RCD.
警告
危险
Warning: Back feed Protection
Backfeed protection, (optional), is provided to isolate the static switch if excessive voltage is present
at the bypass input when the bypass source is de-energized. If this function is not installed and
enabled , there must be a warning label on the external bypass switch to remind the operator of the
connection. The warning on label should be: Isolate the UPS before operating this part.

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NS3000 Series User Manual Rev. 05
警告
危险
Components that can be maintained by user
All the equipment maintenance and servicing procedures involving internal access need special tools
and should be carried out only by trained personnel. The components that can only be accessed by
opening the protective cover with tools cannot be maintained by user.
This UPS full complies with “IEC62040-1 General and safety requirements area UPS”.Dangerous
voltages are present within the battery box. However, the risk of contact with these high voltages is
minimized for non-service personnel. Since the component with dangerous voltage can only be
touched by opening the protective cover with a tool, the possibility of touching high voltage
component is minimized. No risk exists to any personnel when operating the equipment in the normal
manner, following the recommended operating procedures in this manual.
警告
危险
Battery Voltage Higher Than 400Vdc
All the battery maintenance and servicing procedures involving internal access need special tools or
keys and should be carried out only by trained personnel.
SPECIAL CARE SHOULD BE TAKEN WHEN WORKING WITH THE BATTERIES ASSOCIATED
WITH THIS EQUIPMENT. WHEN CONNECTED TOGETHER, THE BATTERY TERMINAL
VOLTAGE WILL EXCEED 400Vdc AND IS POTENTIALLY LETHAL.
Battery manufacturers supply details of the necessary precautions to be observed when working on,
or in the vicinity of, a large bank of battery cells. These precautions should be followed implicitly at all
times. Particular attention should be paid to the recommendations concerning local environmental
conditions and the provision of protective clothing, first aid and fire-fighting facilities.

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NS3000 Series User Manual Rev. 05
Disposal
警告
危险
Warning
Dispose of used battery according to the local instructions
警告
危险
Warning
Dispose the packaging in the correct way
The shipping materials are recyclable. After unpacking save them ore
recycle as law disposal
警告
危险
Warning
End product life
This product not be disposed of as urban waste:
The product’s components must be disposed of separately as a
Weee.
Any violations are punishable in accordance with the current
regulations.
Improper disposal of the product, or the improper use of the product or
its parts, may be harmful to the environment and to human health.
In the states of the European community or If is provided of local state
disposal is possible return the product to the manufacturer, or ask a
withdrawal when is purchasing an equivalent equipment.

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CONTENTS
Chapter 1 Quick Start..................................................................................... 9
1.1 Introduction...........................................................................................................................................................9
1.2 Initial Checking.....................................................................................................................................................9
1.3 Environment Checking..........................................................................................................................................9
1.4 Installation Checking...........................................................................................................................................10
Chapter 2 Installation Guidance................................................................... 11
2.1 Introduction.........................................................................................................................................................11
2.2.2 Battery Room...................................................................................................................................... 12
2.2.3 Storing................................................................................................................................................. 12
2.3 Disassembly, Initial Checking and Positioning ...................................................................................................12
2.3.1 System Packing................................................................................................................................... 12
2.3.1.1 Remove the ups from the pallet ...................................................................................................... 13
Fig 2-1 UPS Packing Diagram ..................................................................... 13
2.3.2 UPS Composition................................................................................................................................ 14
2.3.3 Operation Space.................................................................................................................................. 14
2.3.4 Front and Back Access........................................................................................................................ 14
2.3.5 Final Positioning................................................................................................................................. 14
2.3.6 Cable Entry......................................................................................................................................... 15
2.4 Protective Devices...............................................................................................................................................15
2.4.1.1 Rectifier and Bypass Input Supply of the UPS................................................................................. 15
2.4.1.2 Beakfeed Protection...................................................................................................................... 16
2.4.3 Battery................................................................................................................................................. 17
2.4.3 UPS Output......................................................................................................................................... 17
2.5 Power Cables.......................................................................................................................................................17
2.5.1 Maximum stable state current and configuration of minimum cable system ...................................... 18
2.5.2 Cable Connection................................................................................................................................ 18
2.5.3 Connection for Battery........................................................................................................................ 20
2.6 Control and Communication Cabling..................................................................................................................23
2.6.1 Dry Contact Interface of Battery and Environmental Temperature Detection (Optional)................... 23
2.6.2 Remote EPO Input Port (Optional)..................................................................................................... 24
2.6.3 Generator Input Dry Contact (Optional) ............................................................................................. 25
2.6.4 BCB Interface (Optional).................................................................................................................... 25
2.6.5 Battery Warning Output Dry Contact Interface (Optional)................................................................. 26
2.6.6 General Warning Output Dry Contact Interface (Optional)................................................................ 26
2.6.7 Mains Failure Warning Output Dry Contact (Optional)...................................................................... 27
2.6.8 RS232-RS485 Port and SNMP Card Port........................................................................................... 28
2.7 Installation Diagram.........................................................................................................................................28
Chapter 3 Operations................................................................................... 31
3.1 Introduction.........................................................................................................................................................31
3.1.1 Principle.............................................................................................................................................. 31
3.1.2 Bypass................................................................................................................................................. 32
3.1.3 Battery Temperature Compensation.................................................................................................... 32
3.2 Operation Mode...................................................................................................................................................33
3.2.1 Normal Mode...................................................................................................................................... 33

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NS3000 Series User Manual Rev. 05
3.2.2 Battery Mode ...................................................................................................................................... 33
3.2.3 Auto-Restart Mode.............................................................................................................................. 33
3.2.4 Bypass Mode....................................................................................................................................... 33
3.2.5 Maintenance Mode.............................................................................................................................. 34
3.2.6 ECO Mode.......................................................................................................................................... 34
3.2.7 Frequency Converters Mode............................................................................................................... 34
3.2.8 Parallel connection redundancy mode................................................................................................. 34
3.3 Battery Management ...........................................................................................................................................35
3.3.1 Normal Function................................................................................................................................. 35
3.3.2 Advanced Functions (Battery Self-checking and Maintenance) ......................................................... 35
3.4 Battery Protection................................................................................................................................................35
Chapter 4 Installation of Parallel Operation System..................................... 36
Chapter 5 Operating Procedures ................................................................. 38
5.1 Power Switches ...................................................................................................................................................38
5.2 UPS Start-up........................................................................................................................................................38
5.2.1 Normal Mode Start ............................................................................................................................. 38
5.2.2 Battery Module Start （Only Applicable for the UPS with Battery Cold Start Elements）.............. 40
5.3 Procedure for Switching between Operation Modes ...........................................................................................40
5.3.1 Procedure for Switching the UPS into Battery from Normal Mode.................................................... 40
5.3.2 Procedure for Switching the UPS into Bypass from Normal Mode .................................................... 40
5.3.3 Procedure for Switching the UPS into Normal from Bypass Mode .................................................... 41
5.3.4 Procedure for Switching the UPS into a Maintenance Bypass from Normal Mode............................ 41
5.3.5 Procedure for Switching the UPS into Normal from a Maintenance Bypass Mode............................ 41
5.4 Procedure for Completely Powering down a UPS...............................................................................................42
5.5 EPO Procedure....................................................................................................................................................42
5.6 Language Selection .............................................................................................................................................42
5.7 Control Password ................................................................................................................................................42
Chapter 6 Operator Control and Display Panel............................................ 43
6.1 Introduction.........................................................................................................................................................43
6.1.1 LED Indicator ..................................................................................................................................... 44
6.1.2 Audible Alarm (buzzer) ...................................................................................................................... 44
6.1.3 Functional Keys .................................................................................................................................. 45
6.2 LCD Display Type ..............................................................................................................................................45
6.2.1 Default Display................................................................................................................................... 45
6.2.2 Data Display ....................................................................................................................................... 45
6.2.3 Setting Display.................................................................................................................................... 46
6.2.4 Function Display................................................................................................................................. 46
6.2.5 State Display....................................................................................................................................... 46
6.2.6 Confirm Display.................................................................................................................................. 47
6.2.7 History Record Display....................................................................................................................... 47
6.3 Detailed Description of Menu Items....................................................................................................................48
6.4 Alarm List ...........................................................................................................................................................49
Chapter 7 Maintenance................................................................................ 50
7.1 Instruction of Maintenance Operation.................................................................................................................50
7.1.1 Precautions.......................................................................................................................................... 50

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NS3000 Series User Manual Rev. 05
7.1.2 Instruction to Bypass Module ............................................................................................................. 50
Chapter 8 Product Specification................................................................... 51
8.1 Applicable Standards...........................................................................................................................................51
8.2 Environmental Characteristics.............................................................................................................................51
Table 8-2...................................................................................................................................................................51
8.3 Mechanical Characteristics..................................................................................................................................52
8.4 Electrical Characteristics (Input Rectifier)..........................................................................................................52
8.5 Electrical Characteristics (Intermediate DC Link)...............................................................................................53
8.6 Electrical Characteristics (Inverter Output).........................................................................................................54
8.7 Electrical Characteristics(Bypass Mains Input)...................................................................................................55
8.8 Efficiency............................................................................................................................................................55

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NS3000 Series User Manual Rev. 05
Chapter 1 Quick Start
1.1 Introduction
This chapter introduces the basic principles for the installation and operation of the UPS, so that
service personnel can place the UPS in a place that ensure its safe and reliable operation over
time.
The non-compliance with the requirements present in this manual will void the warranty.
The warranty is void if the interventions and/or modifications are executed by unauthorized
personnel.
1.2 Initial Checking
Perform the following checking operations before the UPS installation.
1. Visually examine if there is any damp, water, or damage inside and outside the UPS packing,
products and battery equipment due to the transportation. Report any such damage to the shipper
immediately.
2. Verify the product label and confirm the correctness of the equipment. The equipment label is
attached on the panel behind front door. The UPS model, capacity and main parameters are
marked on the label.
3. Verify correctness of the accessories. If there is any mistake, contact shipper or provider.
1.3 Environment Checking
Before installing UPS, please check these items as below:
1. Is the UPS operation environment temperature above 25°C? If so, please add cooling equipment.
Note: Environment temperature above 20°C, battery life will reduce to half when environment
temperature rise each 10°C.
2. Is the UPS operation environment temperature below 0°C? If so, please add heaters.
3. Is the UPS operation environment humidity is above 90% Is there any condensing? If so, please add
additional protection.
4. In the UPS operation environment, is there any sunshine shining directly or personnel coming in? If
so, please add additional protection.
5. In the UPS operation environment, is there any dust, combustible or explosive gas or corrosive
material? If so, please add additional protection.
6. Install the UPS in closed room.
7. Ensure that the capacity of the floor is greater than the weight of the UPS and the battery cabinet if
present, and verify that the floor is flat.
8. During the installation of the UPS, the local regulations for the field of application have to be
respected.
9. This is a category C3 UPS product for commercial and industrial application in the residential
environment installation restrictions or additional measures may be needed to prevent disturbances.

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NS3000 Series User Manual Rev. 05
1.4 Installation Checking
After finishing installation, please check these items as below:
1. Is UPS installed on the flame-retardant materials?
2. Are all cables connected exactly?
3. Are all grounded system connected according to the manual?
4. Is there enough operation space around UPS?
5. Please check that all UPS external terminals are fastened, tightening must be comply with the
requirements.
6. Please check that there are no screws, cables and other conductors left in the UPS. If is, please
take out.

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NS3000 Series User Manual Rev. 05
Chapter 2 INSTALLATION GUIDE LINE
2.1 Introduction
This chapter introduces UPS installation, it provide normal installation steps and ideas. Please
installation engineers operate according to each place difference,
警告
危险
Warning: Installation can only be done by authorized engineers
1. Do not apply electrical power to the UPS equipment before the approval of commissioning
engineer.
2. The UPS must be installed by a qualified engineer in accordance with the information contained in
this chapter.
警告
危险
Note: 3-Phase 4-Wire Input Power is required
The standard UPS can be connected to TN, TT AC distribution system (IEC60364-3) of 3-phase
4-wire.For IT system please contact us.
警告
危险
WARNING: battery hazard
SPECIAL CARE SHOULD BE TAKEN WHEN WORKING WITH THE BATTERIES ASSOCIATED
WITH THIS EQUIPMENT.
When the batteries are connected, the battery terminals voltage will exceed 400Vdc and it is
potentially lethal.
Eyes protection should be worn to prevent injury from accidental electrical arcs.
Remove rings, watches and all metal objects.
Use only tools with insulated handles.
Wear rubber gloves.
If a battery leaks electrolyte, or is otherwise physically damaged, it must be replaced, stored in a
container resistant to sulphuric acid and disposed of in accordance with local regulations.
If electrolyte comes in contact with the skin, the affected area should be washed immediately
with water.
2.2.1 UPS installation room
The UPS is designed for indoor installation, which shall be located in a clean environment with adequate
ventilation to keep the environmental temperature within the required specification. The UPS uses forced
convection cooling by internal fans. Cooling air enters the module through ventilation grills located in the
front and exhausted through grills located in the rear part of the cabinet. Do not cover the ventilation
holes.
An air filter (0ption???) should be used when the UPS operates in a dirty environment and should be
regularly cleaned to maintain airflow.
Note: The UPS should be installed on a cement surface or other surface that is not combustible.

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NS3000 Series User Manual Rev. 05
2.2.2 Battery installation room
The battery will generate some amount of hydrogen and oxygen at the end of charging, so the fresh air
volume of the battery installation environment must meet EN50272-2001 requirements. The ambient
temperature of the battery must be stable. Ambient temperature is a major factor in determining the
battery capacity and life. The nominal operating temperature of battery is 20°C. Operating above this
temperature will reduce the battery life, and operation below this temperature will reduce the battery
capacity. If the average operating temperature of battery is increased from 20ºC to 30ºC, the service life
of the battery will be reduced by 50%. If the operating temperature of the battery is above 40ºC, the
battery service life will be decreased in exponent rate. In a normal installation, the battery temperature is
maintained between 15°C and 25°C. Keep batteries away from heat sources or air outlets.
If external batteries are to be used, a battery protection device (a DC circuit breaker) must be mounted
as close as possible to the batteries, and the connecting cables should be as short as possible.
(*): The standard EN 50272-2 for air change envisages that the minimum opening must satisfy the following equation:
A = 28 x Q = 28 x 0.05 x n x Igas x C10 (1/10³) [cm²]
where: A = free opening for air intake and outlet
Q = flow of air to be removed [m³/h]
n = number of battery elements;
C10 = battery capacity over 10 hours [Ah]
Igas = current that produces gas [mA//Ah]
in accordance with the standard: Igas = 1 VRLA type battery
When the equation is applied for 240 element (40 battery) hermetically-sealed lead batteries:
A = 336 x C10 / 10³ [cm²]
When using 120Ah batteries, the minimum aperture should be approximately:
A = 41 [cm²]
2.2.3 Storage
If the equipment not be installed immediately, it must be stored in a room so as to protect it against
excessive humidity and heat sources. The battery needs to be stored in dry and cool place with good
ventilation. The most suitable storage temperature is 20 ºC to 25ºC.
2.3 Disassembly, Initial Checking and Positioning
Check the packaging first upon the arrival of product to see if there is any damage; open the packaging
and check the equipment; report any such damage to the shipper immediately.
2.3.1 Packing system
Remove the carton box and the plastic film first. Then follow the procedure under descripted. Be careful
to not scratch the product.

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NS3000 Series User Manual Rev. 05
REMOVING THE UPS FROM THE PALLET
Fig 2-1 UPS Packing Diagram
CAUTION! TO AVOID HARMING PEOPLE AND/OR DAMAGING THE EQUIPMENT,
FOLLOW CAREFULLY THE FOLLOWING INSTRUCTIONS.
SOME OF THESE INSTRUCTIONS NEED TO BE CARRIED OUT BY TWO PEOPLE.
Cut the straps and remove the cardboard box
by sliding it upwards.
▪Remove the 2 brackets securing the UPS to the pallet (the screws
are marked A and B in the figure) .
▪Using 4 of the previously removed screws (type A) secure the slides to the pallet (as shown), Making sure that
they are aligned with the wheels.
▪Screw the brake rod completely, so to separate it from the pallet
▪Make sure that the door is firmly closed.
▪CAUTION! Push the UPS from the rear with great care. Given the weight of the equipment, this operation needs
to be carried out by two people. NOTE : It is recommended to keep all parts of the packaging for
further use.

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NS3000 Series User Manual Rev. 05
Tip: Dismantle the bolts that connect the cabinet and wooden pallet after disassembly, then lift the cabinet to
installation position. The dismantlement should be careful so as not to scratch the body.
Verify the product label and confirm the correctness of the equipment. The equipment label is attached
on the back of front door. The UPS model, capacity and main parameters are marked on the label.
WARNING: Please dispose the wasted materials in accordance with environmental protection
requirements after disassembly.
To prolong the service life, the place chosen for the UPS must guarantee the following suggestion:
Easy wiring
Sufficient space for operation
Air sufficient enough to dispel heat produced by UPS
Against ambient corrosive gases
Against excessive humidity and heat sources
Ambient Against dust
With the current fire prevention requirements
The operating environment temperature is within 20°C-25°C. The batteries are at maximum
efficiency in this temperature range (for information about the battery storage and transportation as
well as the environment, please refer to table 8-2)
Remember: UPS is a IP20 protection, study to use in a normal internal ambient with not
conductive dust and pollution. For others use contact us.
2.3.1.1 UPS Composition
CAUTION!
The wheels are only at the final station of the 'UPS must be handled only by shifts in the direction of rotation of the
wheels.
2.3.2 UPS Composition
10KVA~30KVA cabinet description.
2.3.3 Operation Space
As UPS has no ventilation grills at either side, lateral clearances are not required.
To permit the commissioning it is recommended to leave clearance in the front and back of the UPS to
allow free passage of personnel with the UPS’s doors fully opened. Distance from the back ≥ 200mm
2.3.4 Front and Back Access
The component layout of the UPS supports front and back access for servicing, diagnosing and repairing
the UPS, thus reducing the space requirement for side access.
2.3.5 Final Positioning
When the equipment has been finally positioned, ensure the adjustable feet is set so that the UPS will
remain stationary and stable.

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NS3000 Series User Manual Rev. 05
2.3.6 Cable Entry
A lower incoming line is used for 10KVA~30KVA UPS.
2.4 Protective Devices
For safety concerns, it is recommended to install external circuit breakers or other protective devices for
the input AC supply of the UPS system.
We suggest to choose the input automatic break Bigger than internal automatic Breaker to make the
selectivity with internal UPS protection and protect the UPS input line according national standard..
This section provides generic practical information for qualified installation engineers. The installation
engineers have the knowledge of the regulatory wiring standards, and of the equipment to be installed.
2.4.1.1 Rectifier and Bypass Input Supply of the UPS
Install suitable protective devices in the distribution unit of the incoming mains supply, considering the
power cable current-carrying capacity and overload capacity of the system. Generally, the magnetic
circuit breaker with IEC60947-2 tripping curve C (normal) at the 125% of the current listed in table 2-1 is
recommended. With common input we suggest tripping curve D
警告
危险
Note
For IT power network system, 4-pole protective device must be installed on the external input distribution of the
UPS.
Earth leakage current
If protection against earth faults (RCD devices) is required for the upstream of the input supply, the
installed device should be:
Sensitive to DC Class B in the network
Insensitive to transient current pulses
Have an average sensitivity that is adjustable between 0.3A-1A

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NS3000 Series User Manual Rev. 05
2.4.1.2 Backfeed Protection.
Put a label on all primary power isolators installed remote from the UPS area. One label is supply
Before working on this circuit
- Isolate Uninterruptible Power System (UPS)
- Then check for Hazardous Voltage between all terminals
including the protective earth
Risk of Voltage Backfeed
UPS with by-pass and separate input line
UPS whit by-pass and common input line.
Pay attention: Neutral is common point inside UPS
T1: Breaker 3 poles with coil 230Vac 50-60 HZ. I nominal > o = 32 A to NS3010 e NS3020
And 63A to NS3030
L1
L2
L3
L11
L21
L31
L1
L11
L3
L2
L21
1
L31

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NS3000 Series User Manual Rev. 05
2.4.3 Battery
A battery string is composed of 40 batteries connected in series, maximum is possible install 2 strings of
40batteries in series (B1-B2 in this document). The positive, the negative and middle point cable (the
joint part between the 20th and 21st battery) must pass through a DC circuit breaker or fuse holder
before connecting to corresponding UPS . For detailed wiring please refers to fig 2-4 below:
Fig 2-4 Diagram of batteries connected in series
警告
危险
DON’T OPEN THE FUSE HOLDER F1 UNDER LOAD (BATTERY MODE)
Protezione batterie interne
Modello Nome
NS3010
NS3020
NS3030
A
A
A
Batterie
DC circuit breaker
25A
32A
50A
Fuse 14x51 F1
25A
40A
--
2.4.3 UPS Output
UPS limited the output current according limited show in the chapter 8.6 and 8.7. The user shall install
the overcurrent protective device on the bypass and on each output of the external distribution cabinet.
2.5 Power Cables
Design the cables according to the descriptions in this section and local regulatory wiring standards, and
the environmental conditions should be taken into consideration. Refer to IEC60950-1 table 3B.
警告
危险
Warning
Before cabling the UPS, confirm the status and positions of the switches of the UPS rectifier input
power supply / bypass power supply and mains power distribution board.
Ensure that these switches are opened and attached with WARNING label so as to prevent
unauthorized operation to these switches.

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NS3000 Series User Manual Rev. 05
2.5.1 Maximum stable state current and configuration of minimum cable system
Table 2-1
Model Name
NS3010
NS3020
NS3030
UPS Power
10KVA
20KVA
30KVA
Main Input
Rated current A
15A
30A
45A
Cable mm2
4
6
10
Output
Rated current A
15A
30A
45A
Cable mm2
4
6
10
Battery
Rated current A
18A
36A
53A
Cable mm2
6(nota1)
10(nota1)
16(nota1)
PE
Cable mm2
4
10
10
(nota1): For external battery cabinet use double insulated cables and protect the cable from mechanical dangerous
警告
危险
Warning
AN NOT CORRECT EARTHING CONNECTION CAN CAUSE ELECTRICAL RISK,SHOCK
HAZARD , EMC PROBLEM, RISK OF FIRE.
2.5.2 Cable Connection
警告
危险
Important
The operations described in this section must be performed by authorized electricians or qualified
technical personnel. If you have any difficulties, do not hesitate to contact our Customer Service &
Support department .
After the equipment has been finally positioned and secured, connect the power cables as described in
the following procedures:
1. Verify that all the external input distribution switches of the UPS are completely opened (off position)
and the UPS internal maintenance bypass switch is opened. Attach necessary warning signs to
these switches to prevent unauthorized operation.
2. Open the door of the cabinet, remove the left bottom cover and then the input and output terminal,
battery terminal and earth terminal are visible see cap.2.7.
3. Connect the input earth wire to input earth terminal. Please note: the earth wire shall be connected
in accordance with related local or national regulation.
4. If in UPS, same electric supply input is used for the by-pass and main input AC input cables should
be connected with the input terminal of UPS (Main input L1 –L2 –L3 and the output load
cables are connected with the output terminal of UPS (Output L12 - L22 - L32-N2). If in UPS,
two electric supply inputs are used for the rectifier and by-pass, the AC input cables should be
respectively connected with the main input terminal of UPS (Main input L1 - L2 –L3 and the input
terminal of the bypass,L11,L21,L31 and the short circuit copper bars between the main
circuit and the bypass have to be removed; fastening moment of force is 30kg(M5),
50kg(M6), 180kg(M8). Attention is given to phase sequence and the short circuit at a joint between
cable terminals. If the phase sequence is wrong UPS show an alarm
5. Connect the battery cables between the UPS battery terminals and external battery protections.
ENSURE CORRECT Polarity ,connect the battery cable with the battery protections open
UPS and battery cabinet.

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NS3000 Series User Manual Rev. 05
警告
危险
Warning-Hazardous battery terminal voltage ≥400Vdc
The operations described in this section must be performed by authorized electricians or qualified
technical personnel.
Ensure the correct polarity connection between the battery terminals and the UPS terminals: Positive
terminal to positive terminal, negative terminal to negative terminal, The middle poin of the batteies is
Neutral point in the UPS.
Disconnect in the tray 1 and tray 5 the cable marked A and B. Do not connect the cables and close
the battery circuit breakers before getting the approval from the commissioning engineer.
6. Re-install all the protective covers.

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NS3000 Series User Manual Rev. 05
2.5.3 Connection of internal battery
On NS3000 series 10-30kVA there is an internal battery breaker into the UPS. Also, this type UPS offer
external battery connection terminals. If customers want to use external battery, they have to install a
battery breaker or fuse between the UPS and the external battery.
UPS can have internally one or two string of batteries: B1 or B1+B2. Each string is composed with
20+20 battery with common point (see tab.1). The method of build-in battery connection as shown fig.
2-5
UPS
B1
B1+B2
NS3010
40*7Ah or 9A/h
2*40*7Ah or 9A/h
NS3020
40*7Ah or 9A/h
2*40*7Ah or 9A/h
NS3030
----------
2*40*7Ah or 9A/h
Tab.1
警告
危险
Warning-Hazardous battery terminal voltage ≥400Vdc
THE BATTERIES MUST BE INSTALLED WITH THE ORIGINAL MANUFACTORY KIT THAT
INCLUDE THE DEDICATE PLASTIC BATTERY BOX.
KIT CABLE cod. KITNS-CAVBATINT
USE THE MANUFACTORY INSTRUCTION.
2.5.3.1 UPS with battery shipped separately. Instructions for forty batteries:
1) Opened the battery breaker
2) Insert the batteries in the plastic box and connect the batteries according fig. 2.5.B
3) Check with the multimeter the battery output cable correct polarity and voltage ( 8 battery have
to be about 101-104V, 4 battery have to be about 50-52V)
4) Fix the plastic battery box with hard tape at least in 2 positions.
5) Insert the plastic battery box according fig. 2.5.A. Pay attention all cable are marked and have
different color.
6) Connect the battery according fig 2.5.A , don’t connect A and B cable in the shelf 1.
7) In shelf 1 on the left connect the cable mark Awith the cable mark Bon shelf 2.
8) Check B1- negative battery voltage on battery breaker. Negative battery is on the battery
breaker right lower terminal, the neutral is on the battery breaker central lower terminal.
9) With 20 batteries the voltage is NEGATIVE, about - 255 /-260V
10) In the shelf 1 (B1+) on the right connect the cable mark Awith the cable mark Bon shelf 2
11) Check B1+ positive battery voltage on battery breaker. Positive battery is on the battery breaker
left lower terminal, the neutral is on the battery breaker central lower terminal.
12) With 20 batteries the voltage is POSITIVE about + 255 -260V
Important: with 80 batteries repeat the operation upper descript change layer1 with layer 5 and
B1 with B2 , with B1 battery block don’t connect
2.5.3.2 UPS shipped with internal batteries.
Start from point 6 of 2.5.3.1 instruction paragraph.