Delta NT-15K Manuale utente

www.deltapowersolutions.com

Delta UPS - Ultron Family

User Manual

The power behind competitiveness

NT Series, Three Phase

15/ 30/ 60/ 100 kVA

Ultron NT Series

SAVE THIS MANUAL

This manual contains important instructions and warnings that you should

follow during the installation, operation, storage and maintenance of this

product. Failure to heed these instructions and warnings will void the warranty.

User Manual (“Manual”), including but not limited to the contents, information,

and figures are solely owned and reserved by Delta Electronics Inc. (“Delta”).

The Manual can only be applied to the operation or the use of this product. Any

disposition, duplication, dissemination, reproduction, modification, translation,

extraction, or usage of this Manual in whole or in part is prohibited without the prior

written permission of Delta. Given that Delta will continuously improve and develop

the product, changes may be made to the information in this Manual at any time

without obligation to notify any person of such revision or changes. Delta will make

all possible efforts to secure the accuracy and the integrity of this Manual. Delta

disclaims any kinds or forms of warranty, guarantee, or undertaking, either expressly

or implicitly, including but not limited to the completeness, faultlessness, accuracy,

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Table of Contents

III

Table of Contents

Chapter 1 : Important Safety Instructions ------------------------------- 1

Chapter 2 : Introduction ------------------------------------------------------- 4

Chapter 3 : Operation Modes ------------------------------------------------ 5

3.1 Normal Mode (Single) --------------------------------------------- 5

3.2 Back-up Mode (Single) -------------------------------------------- 5

3.3 Reserve AC Supply Mode (Single) ----------------------------- 6

3.4 Maintenance Bypass Mode (Single) ---------------------------6

3.5 Normal Mode (Parallel) -------------------------------------------- 7

3.6 Back-up Mode (Parallel) ------------------------------------------ 8

3.7 Reserve AC Supply Mode (Parallel) --------------------------- 9

3.8 Maintenance Bypass Mode (Parallel) ------------------------10

3.9 Hot Standby Redundancy ---------------------------------------11

3.10 Common Battery ---------------------------------------------------12

3.11 Dry Contacts --------------------------------------------------------13

Chapter 4 : Installation & Wiring -------------------------------------------15

4.1 UPS Mechanism Data --------------------------------------------15

4.2 External Battery Cabinet -----------------------------------------18

4.3 External & Internal Views ----------------------------------------19

4.3.1 15~30kVA (Input: 480Vac; Reserve I/P: 208/ 120Vac;

Output: 208/ 120Vac) ------------------------------------------------------19

4.3.2 60kVA (Input: 480Vac; Reserve I/P: 208/ 120Vac;

Output: 208/ 120Vac) ------------------------------------------------------21

4.3.3 100kVA (Input: 480Vac; Reserve I/P: 208/ 120Vac;

Output: 208/ 120Vac) ------------------------------------------------------23

4.4 Installation Environment and Safety Precaution ----------25

4.5 Electrical Connection Precaution ------------------------------26

Ultron NT Series

4.6 UPS Installation Checklist ---------------------------------------26

4.7 Floor Weight Loading Table -------------------------------------28

4.8 Cable Selection-----------------------------------------------------28

4.9 Electrical Connections --------------------------------------------31

4.9.1 15~30kVA Output 208/ 120Vac Terminal Wiring Diagram

(Only for Dual Input Application) ---------------------------------------31

4.9.2 60kVA Output 208/ 120Vac Terminal Wiring Diagram

(Only for Dual Input Application) ---------------------------------------32

4.9.3 100kVA Output 208/ 120Vac Terminal Wiring Diagram

(Only for Dual Input Application) ----------------------------------------32

4.9.4 UPS Parallel Wiring Diagram (Dual Input) ---------------------------33

4.10 Communication Interfaces (NT-Q Board) --------------------34

4.11 Dry Contact Wiring Diagram (Default Value)----------------35

4.12 RS-485 Pin Assignment ------------------------------------------35

Chapter 5 : External Battery Cabinet -------------------------------------36

5.1 External Battery Cabinet Usage Warnings ------------------36

Chapter 6 : UPS Display and Settings -----------------------------------38

6.1 Control Panel -------------------------------------------------------38

6.2 LCD Display Screen-----------------------------------------------39

Chapter 7 : UPS Operation --------------------------------------------------58

 3UH6WDUWXS3UH7XUQRႇ:DUQLQJV ------------------------58

7.2 Start-up Procedures ----------------------------------------------58

7.2.1 Normal Mode Start-up Procedures (Single) -------------------------58

7.2.2 Battery Mode Start-up Procedures (Single) -------------------------59

7.2.3 Manual Bypass Mode Start-up Procedures (Single) --------------59

7.2.4 Normal Mode Start-up Procedures (Parallel) -----------------------61

7.2.5 Battery Mode Start-up Procedures (Parallel) ------------------------62

7.2.6 Manual Bypass Mode Start-up Procedures (Parallel) ------------63

Table of Contents

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Chapter 8 : Optional Accessories -----------------------------------------70

8.1 Input Harmonic Filter ----------------------------------------------70

8.2 Remote Monitor ---------------------------------------------------70

8.3 Monitoring Software ----------------------------------------------70

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Appendix 2 : Warranty --------------------------------------------------------73

Ultron NT Series

Chapter 1 : Important Safety Instructions



z This manual contains important instructions that should be followed during in-

stallation and maintenance of the UPS and batteries. Before wiring and opera-

tion, read all instructions thoroughly.



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tection of Electronic Computer/ Data Processing Equipment, ANSI/ NFPA 75.



z Install the UPS in a well-ventilated indoor area where is free of conductive con-

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contact with water. The UPS is only suitable for being installed on the concrete

and non-combustible surface. Do not place it outdoors. Please refer to Chapter

4.6 for more information



z The ambient operating temperature should be kept between 0°C ~ 40°C (32°F ~

104°F).



z For each operation mode’s block diagram, please refer to Chapter 3.



z For PERMANENTLY CONNECTED EQUIPMENT application, a readily acces-

sible disconnected device shall be incorporated in the building’s wiring system

for AC Input, AC Output and DC Input. Please refer to Chapter 4.8 for relevant

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

z For the external terminals that need to connect to the UPS, please refer to

Chapter 4.8 for more information.



z The conduit size shall be 6 inches or other equivalent size. Wiring method shall

be in accordance with the National Electric Code, ANSI/ NFPA 70. When con-

necting to AC and DC wiring terminals, use adequate wire gauge, copper wires

with temperature resistance up to 90°C and lb-in torque force. For more informa-

tion, please refer to Chapter 4.8.



z The external slits and openings in the UPS are provided for ventilation. To en-

sure reliable operation of the UPS and to protect the UPS from overheating,

these slits and openings must not be blocked or covered. Do not insert any ob-

ject into the slits and openings that may hinder ventilation.



z Do not put beverages on the UPS, battery cabinet(s) or any other accessory as-

sociated with the UPS.

Chapter 1 Important Safety Instructions



z The UPS is designed to power modern computer loads and associated periph-

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drives, etc. Do not connect (1) inductive loads, (2) capacitive loads or (3) life

support equipment to the UPS.



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sonnel. The UPS contains high voltage which is potentially hazardous.



z The risk of dangerous high voltage is possible when batteries are still connected

to the UPS even though the UPS is disconnected from AC power sources. Be-

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

z Isolate the UPS before working on the circuit. A readily accessible disconnected

device shall be installed.



z Before applying electrical power to the UPS, make sure the UPS is grounded to

avoid a possible risk of current leakage.



z The protective device shall be a four-pole device and shall disconnect all line

conductors and the neutral conductor.



z Battery installation and maintenance instructions shall be provided by the battery

manufacturer.



z Before battery installation and maintenance, ensure that the instructions written

in the battery manufacturer’s installation and maintenance manuals are thor-

oughly followed.



z For information about the maximum battery fault current, please refer to Chap-

ter 5.



z For information about the battery usage, connection, replacement, etc., please

refer to Chapter 5.



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

zDo not open or damage the battery or batteries. The released electrolyte is

harmful to the skin and eyes and may be toxic.



zA battery can present a risk of electric shock and high short-circuit current. The

following precautions should be observed before replacement of batteries:

1. Remove watches, rings, or other metal objects.

2. Use tools with insulated handles.

Ultron NT Series

3. Wear insulating gloves and boots.

4. Do not lay tools or metal parts on the top of batteries.

5. Disconnect the charging source prior to connecting or disconnecting the

battery terminals.

WARNING:

This is a class-A UPS. In a domestic environment, the product may

cause radio interference, in which case, the user may be required to

take additional measures.



zStandard Compliance:

- UL 1778

- FCC47 CFR Part 15, Subpart B, Class A



z Symbol Introduction

Protective grounding terminal: a terminal which must be connected

to earth ground prior to making any other connection to the

equipment.

A terminal to which or from which a direct current or voltage may be

applied or supplied.

This symbol indicates the word 'phase'.

Chapter 2 Introduction

Chapter 2 : Introduction

The NT series UPS is a dedicated design for large scales of power systems such

as data centers, communication systems, satellite systems, network rooms, medical

devices, monitoring, safety and emergency systems as well as factory facilities.

The UPS adopts high frequency SPWM (Sinusoidal Pulse-Width Modulation)

inverter technology. The inverter uses an advanced IGBT module capable to

reduce the MTTR (Mean Time to Repair) and easier to be maintained, came with

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product life expectation. The applied MCU simplifies complicated control circuits

and reduces number of components. To improve reliability, the NT series UPS is

designed with the following two functions:

Hot standby redundancy: dual input application.

Parallel redundancy: no need to add external parallel control cards and capable to

parallel up to 8 UPS units.

The LCD display with multi-language graphical interface makes the user easier to

operate. System block diagram and status are also available on the LCD providing

the user with clear operating modes and overall conditions. The user can also

implement long-distance monitoring via various communication ports, computers

and network systems. As a result, direct monitoring and control of the UPS is

available (all messages on the LCD are generated by MCU). With the installation of

the provided exclusive software, UPSentry 2012, a total of 31 UPS units’ status can

be monitored at the same time via only one PC, which greatly reduces manpower

and facilitates centralized control. The circuit boards of the NT Series UPS are

interchangeable which minimizes component inventory management, and the

friendly design of the NT series UPS provides optimal and durable quality power

and enhances the unit’s availability and reliability.

Ultron NT Series

Chapter 3 : Operation Modes

There are four basic operation modes for the NT series UPS, either of which can

deliver loads with reliable and high quality power source in any conditions. The

operation modes are described as follows.

3.1 Normal Mode (Single)

Figure 3-1: Normal Mode Block Diagram_ Single Unit

RECTIFIER INPUT

RESERVE

MAINS BREAKER

RESERVE INPUT

BREAKER

MANUAL BYPASS

BREAKER

OUTPUT

BREAKER

Power Flow

BATTERY BANK

Power Flow

LOAD

STATIC SWITCHINVERTERRECTIFIER

Power Flow

In normal mode, DC power, rectifying from AC input power, charges batteries and

powers the inverter that transforms DC power to stable and clean AC power to the

loads (see Figure 3-1).

3.2 Back-up Mode (Single)

RECTIFIER INPUT

RESERVE

MAINS BREAKER

RESERVE INPUT

BREAKER

MANUAL BYPASS

BREAKER

OUTPUT

BREAKER

BATTERY BANK

Power Flow

LOAD

STATIC SWITCHINVERTERRECTIFIER

Power Flow

Figure 3-2: Back-up Mode Block Diagram_ Single Unit

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