Delta NH-20k, NH-40k, NH-15k, NH-30k, NH-60k User Manual

Uninterruptible Power Supply

3PHASE

NH SERIES

Content

1. Important Safety Instructions ……….……………….…..…..…0-1

2. Introduction ………………………………….……….…..……....1-1

1-1 Advanced Features …..…………………….….……..…...1-2

3. Operation…………..……….……………….…….………..…….2-1

2-1 Normal Mode (Single)….……......……….………..……...2-1

2-2 Backup Mode (Single)….…….……..…….………..……..2-1
2-3 Reserve Mode (Single) ……..…………………..…….…..2-2
2-4 Bypass Mode (Single) ……………………………..….…..2-3
2-5 Normal Mode (Parallel)…..………………………………..2-4
2-6 Backup Mode (Parallel)……...…………………….…..….2-5
2-7 Reserve Mode (Parallel)….………………………..….…..2-6
2-8 Bypass Mode (Parallel)…..………………………...……..2-7
2-9 Hot S t andby Redundancy………………….……..….……2-8

3. General View…...…………………………………………..…….3-1
3-1 Appearance.………………………………………….…….3-1

3-1-1 Dimension.…..………………………………….………..3-2
3-2 Function………………………….………………………….3-3
3-2-1 Front Panel…….……………….………………………...3-3
3-2-2 Rear Panel……………………………..………...………3-4
3-3 Specification….…………………………………………….3-5

4. Installation…….….……………………………………………….4-1
4-1 Before Installation..…..…………………………………….4-1

4-2 Package Inspection…….………………………………….4-1
4-3 S toring For Delayed Inst allation.………………………….4-1

4-4 Unpacking Procedure………………….………………….4-2
4-5 Location…………….……………………………………….4-3

4-5-1 Moving……………………………………………….4-3
4-5-2 Positioning….……………………………………….4-3
4-5-3 Environment…..…………………………………….4-4
4-6 Wiring…...………………………………………………….4-5
4-6-1 Preparations…..…………………………………….4-5
4-6-2 Wiring (Single)……………..………………………..4-5
4-6-3 Wiring (Parallel Redundancy, Single Input)………4-9

4-6-4 Wiring (Parallel Redundancy, Dual Input)……....4-10

4-7 Interface…...……………………………………………...4-11
4-7-1 Input Dry Contact….………………………………4-10
4-7-2 Output Dry Contact………………………………..4-13
4-7-3 RS232 Port…………………………………………4-15
4-7-4 Parallel Communication Port …….………………4-13

4-7-5 Smart Card Slot……………………………………4-14

-SNMP Card………………………………………4-15

-Programmable Relay I/O

Card….……………….4-17

-MoBUS Card…………………………………….4-18
4-8 Other Optional Accessories….………………………...4-19

-Environmental Sensor...………………………..4-19

- SNMP+5 Ports Switching Hub…………..………....4-19

5. Operating Procedure………………………….…………………5-1

5-1 Start up Procedure (Single)…...………….……………...5-1

5-2 Battery Start (Single)………………….………………….5-1

5-3 Powering Down (Single)…..………….………………….5-2
5-4 Manual Bypass Start up (Single)….…………….……….5-2
5-5 Start up Procedure (Parallel Redundancy)…….……….5-2
5-6 Powering Down (Parallel Redundancy)….…….……….5-3
5-7 Manual Bypass Stat up (Parallel Redundancy)….…….5-4

6. Display and Configuration..…………………………….……….6-1
6-1 Control Panel..…………………………………….……….6-1

6-2 LCD Display……………………………………….……….6-2

6-2-1 LCD Display Hierarchy…………………….……….6-2

6-3 Default Screen………………………………….………….6-3

6-3-1 Status Display...………………………….………….6-4

6-4 Main Menu……………………………………….…………6-9
6-5 UPS Setup…………………………………….…………..6-11

a. Bypass Setup…………………………….……………6-12
b. Output Setup…………………………….…………….6-13

c. Battery Setup……………….…………………………6-14
d. Local Setup………………………….………………...6-15

6-6 Maintenance…………………………….………………...6-17

7. Power Management Software……………….………………….7-1
7-1 DELTA Software Family……..…………………………….7-1
7-2 UPSentry Smart 2000……….…………………………….7-2
7-2-1 Flexible Management Tools…………...……………7-3
7-3 InsightPower Manager…………………………………….7-5

0. IMPORTANT SAFETY INSTRUCTIONS

 This manual contains important instructions for the unit that should be followed during installation and

maintenance of the UPS and batteries. Before attempting to wire or operate the unit, read all instructions
thoroughly.

 Install the on-line UPS in a well ventilated area, away from flammable liquids and gases. Do not let the unit come

in contact with water.

 External slits and openings in the cabinet are provided for ventilation. To ensure reliable operation of the product

and to protect from overheating these openings must not be blocked or covered. Objects must never be inserted
into ventilation holes or openings.

 Do not stand beverage containers on the unit.
 This UPS was designed to power all modern computer loads and associated pe ripheral devices, such as monitors,

modems, cartidge tape drives, external floppy drives etc.. Do not use it for pure inductive or capacitive loads. It is
not rated to power life support equipment.

 All recorded media, such as diskettes, tapes and cartridges should be kept a minimum of 60cm from the UPS.

Otherwise, the magnetic field created by operation of the UPS may erase data on those devices.

 All repairs or installation should be performed by qualfied service personnel. The UPS contains voltages which

are potentially hazardous. The output receptacles may be alive even when the UPS is not connecte d to the mains.

 Rick of a possible electrocution is possible when battery is connected to the UPS. Therefore, do not forget to

disconnect the batteries before any service is to be done on the UPS. To disconnect, remove the battery fuse its
holder which is located at the rear panel of the battery cabinet.

 Isolate Uninterruptible Power Supply(UPS) before working on the circuit. A readily accessible disconnect device

shall be incorporated in the fixed wiring.

 HIGH LEAKAGE CURRENT – Earth connection essential before connecting supply.
 The disconnect device shall be a four-pole device and shall disconnect all line conductors and the neutral

conductor.

 ATTENTION, hazardous through electrical shock. Also with disconnection of this unit from the mains, hazardous

voltage still may be accessible through supply from the battery(ies). The battery supply should therefore be
disconnected in the plus and the minus pole when maintenance or service work inside the UPS is considered.

 Do not dispose of batteries in a fire, the battery may explode.
 Do not open or mutilate the battery or batteries, released electrolyte is harmful to the skin and eyes.
 A battery can present a risk of electric shock and chemical hazard. The following precaution should be observed

when working on batteries.

∗ Remove watches, rings or other metal objects.
∗ Use only tools with insulated handles.

 The UPS only be installed in accordance with the requirements of IEC 60364-4-48.
 The compliance with the following standards provides the conformity:

- EN 50091-1-1

- EN 50091-2 Class A

- IEC 61000-4-2 Level 4

- IEC 61000-4-3 Level 3

- IEC 61000-4-4 Level 4

- IEC 61000-4-5 Level 4

- IEC 61000-4-6

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".

This is a class A-UPS product. In a domestic
environment, this product may cause radio
interference, in which case, the user may be
required to take additional measures.

WARNING

0-1

1. Introduction

The NH-series UPS is a dedicated design for large scales of power systems applying on all
kinds of data process systems, communication systems, satellite systems, computer network
systems, medical device systems, safety and emergency systems, monitoring systems, and all
factory facilities.

The NH-series UPS employs a 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 advantages in high efficiency, low
thermal loss, low noise, small volume, and long life expectancy. The control implements on MCU
that simplifies complicated control circuits and reduces number of components.

A LCD display with multi-language graphical interfaces makes user easier to operate with

accurate outputs. System block diagrams and statuses are also available on the interface
providing users with clearly operating modes and overall conditions. Users can also implement
long-distance monitoring by using various communication ports via computers or network
systems. As a result, direct monitoring and controls on the UPS are available for users, which
all messages on the interface are generated by MCU. If exclusive software---UPSentry is
installed, 31 sets UPS status could be monitoring at the same time via only one PC reducing
man forces and facilitating centralized control. The circuit boards of NH-Series could
Interchangeable that minimized component-inventory management. Friendly design concepts
of NT series UPS to provide optimal and durable quality power and to be the protector of the
best power related devices for customers.

Besides, in order to improve the reliability, the NH-series provides two possibilities:

Hot standby redundancy: is achieved by dual loops design. (1+1 Redundancy)

Parallel redundancy: No need of extra parallel control card, you can expand the total

backup capacity by simply linking another unit via a DELTA cable. A single cabinet can install

four power modules and each module has 20KVA capacity. As a result, NH-series can

backup up to 80KVA in one cabinet. By parallel expansion (two cabinets), the possible total

capacity will be 160KVA.

1-1

1-1. Advanced Features

 Power Rating: 15/20/30/40/60/80 KVA
( 15/20/30/40KVA can be with internal battery ).

 Up to 4 modules work in parallel in one single cabinet
 1+1 parallel redundant expansion and no need of extra

parallel control card. Maximum total output power is

160KVA.
 High input power factor(pf > 0.99) and low input current

(THD: < 5%). Save the installation cost and reduce the

pollution of utility.
 Overall high efficiency > 94%.Modular design with power

module redundancy.

 Dual input – separated rectifier and bypass input.
 Built-in manual and static bypass switch for maintenance.
 Built-in SRAM, record up to 500 real-time event logs.
 Redundant auxiliary power and control circuit. Double

insurance of the performing reliability.

 Scheduled battery test and battery replacement warning.
 Local and remote emergency power off function (LEPO and

REPO).

 Compatible with generator design.
 Double conversion and IGBT technology.
 Multi-interface for monitoring and critical controlling.
 User-friendly LCD display and LED indicators.
 External battery pack available to extend the backup time.

1-2

2. Operation

Delta NH-series operates in four basic modes:

2-1 Normal Mode (Single Installation)

CB3

CB2

RESERVE

CB4

MAIN

CB1

CB5

STS

Fig. 2-1 Normal Mode Block Diagram

Under normal mode, util n transferred into DC power

ity power supplies to the rectifier and the
to supply the inverter and charge the batteries. Inverter will modulate and transfer the DC
power into AC power to the load. This the “Double Conversion” technology to regulate the
utility into pure and stable power to your precious equipment. (Refer to Fig. 2-1)

Backup Mode (Single Installation)

2-2

CB3

CB2

RESERVE

MAIN

CB1

CB5

STS

CB4

LOAD

LOAD

Fig. 2-2 Backup Mode Block Diagram

2-1

When there is a power event (blackout, transient, surge, fluctuation…), UPS will
automatically switch from normal mode into backup mode. Battery (internal or external) wil
provide emergency pow er to Fig. 2-2)

er to the inverter and then the loads. (Ref

2-3

Reserve Mode (Single Installation)

CB3

CB2

RESERVE

l

MAIN

CB1

CB5

STS

CB4

LOAD

Fig. 2-3 Reserve Mode Block Diagram

When inverter malfunctions under（1）Over temperature （2）Overloading（3）Output shor

circuit（4）Output voltage abnormal（5）Battery terminates to backup, inverter will shutdown
If UPS detects the reserve power exists and normal, then UPS will automatically switch

into reserve mode to make sure the supply to the loads. When all troubles are eliminated
UPS will switch back Fig. 2-3)

to the normal mode immediately. (Refer to

t
.

,

2-2

2-4 Bypass Mode (Single Installation)

CB3

CB2

RESERVE

MAIN

CB1

CB5

STS

CB4

LOAD

Fig. 2-4 Bypass Mode Block Diagram

Under maintenance or repair service condition, you will need to cut off the UPS power but
not the power to your equipment. Make sure the reserve power exists first, then manually
switch UPS into bypass mode. At this time, there is no power inside UPS. The servic e
engineer can do the maintenance or repair job safely but keep your equipment supplied.
(Refer to Fig. 2-4)

2-3

2-5 Normal Mode (Parallel)

elta NH-series provide 1+1 parallel combination to get redundancy or expand the total capacity.

D

CB3

CB2

RESERVE

MAIN

CB1

CB5

STS

CB4

UPS1

CB3

CB2

RESERVE

MAIN

CB1

CB5

CB4

STS

LOAD

UPS2

Fig. 2-5 Normal Mode in parallel redundancy

Under this inst

of them, the loading will be totally handle by another. In case the loading is greater than one
UPS can t

allation，the loading is shared by two UPS units. If there is something wrong in one

ake, UPS will shutdown and then switch to the reserve mode. (Refer to Fig. 2-5)

2-4

2-6 Backup Mode (Parallel)

CB3

CB2

RESERVE

MAIN

CB1

CB5

STS

CB4

UPS1

CB3

CB2

RESERVE

MAIN

CB1

CB5

STS

CB4

UPS2

Fig. 2-6 Backup Mode in parallel redundancy

Loading is shared by two UPS units when there is blackout. (Refer to Fig. 2-6)

LOAD

2-5

2-7 Reserve Mode (Parallel)

CB3

CB2

RESERVE

MAIN

CB1

CB5

STS

CB4

UPS1

CB3

CB2

RESERVE

MAIN

CB1

CB5

STS

CB4

UPS2

Fig. 2-7 Reserve Mode in parallel redundancy

The same as chapter 2-3 except two UPS share the loading. (Refer to Fig. 2-7)

LOAD

2-6

2-8 Bypass Mode (Parallel)

CB3

CB2

RESERVE

MAIN

CB1

CB5

STS

CB4

UPS1

CB3

CB2

RESERVE

MAIN

CB1

CB5

CB4

STS

LOAD

UPS2

Fig. 2-8 Bypass Mode in parallel redundancy

The same as chapter 2-4 except two UPS share the load. Remember that both UPS should
be switched into bypass mode. (Refer to Fig. 2-8)

2-7

2-9 Hot Standby Redundancy

If you just want to double insurance the UPS operation, you can utilize one extra UPS to be

the reserve source of main UPS. This installation will make sure the output power
source for loading is still present even when the main UPS malfunctions.
（Refer to Fig. 2-9）.

CB3

CB2

RESERVE

MAIN

CB1

CB5

STS

CB4

UPS1

CB3

CB2

RESERVE

MAIN

CB1

CB5

STS

CB4

LOAD

UPS2

Fig. 2-9 Hot Standby Redundancy

2-8

3. General View

3-1. Appearance

External Battery
Pack

Power unit

LCD Display and Control Panel

3-1

3-1-1 Dimension

Fig. 3-1 Power Unit (mm)

3-2 Function

Fig. 3-2 External Battery Pack (mm)

3-2

-2-1 Front Panel

3

LCD Display and
Control Panel
LED indicators

Power Modules

1. LCD Displa

/ LED indicators :

- Display UPS st

- Setup parameters and control buttons

- On/Off UP

- EPO: Emergency Power Off

Please refer to Chapter 6-1 for more det

ails.

2. Power Modules :

- Bezel can be easily removed for the purpose of maintenance.

- Minimum capacity of each power module is 15KV

(132cm) height.

Maximum modules can be t, i.e. maximum

I/P and O/P Protectors

y and Control Panel

atus and message

S

A, standard 3U

installed are four uni

capacity in a single cabinet is 80KVA

3. Protectors :

- Bezel can be easily removed for the purpose of installation or maintenance.

- There are four protectors: Input、Bypass、Manual Bypass、Output.

- All protectors are no fuse breaker ty

3-2- R

2 ear Panel

.

pe.

3-3

1. Interfaces:

Interfaces

Power Module
and Wiring

I/O Wiring Terminal

Block

- Provide multi-interface for monitoring and control purpose

- There are :

(1) Two multi-function slots (SNMP card、Relay I/O control card、Mobus card are optional

accessories)
(2) Parallel link communication
(3) Input and Output Dry Contact
(4) RS232 : Delta’s software ”UPSentry Smart 2000” or “InsightPower Manager” are

optional choice for central monitoring and control purpose)

2. Power Module and wiring:

- Remove the cover, you can perform wiring for power modules.

3. I/O wiring terminal block:

- Remove cover, you can perform wiring for input、output and external battery.

- Input power source : 3 phases ( R、S、T and neutral N )

- Bypass input source : 3 Phases ( R、S、T and neutral N )

- External battery pack : positive(+)、negative(-) and neutral N

- UPS output

: 3 Phases ( R、S、T and neutral N )

- Protection Earth : For safety

3-4

3-3 pS ecification

Capacity 15kVA/12KW 20kVA/16KW 30kVA/24KW 40kVA/32KW 50kVA/40KW 60kVA/48KW 80kVA/64KW

Ra

ting Voltage V

Volt -25 ~ +20 age regulation ％
Inp

Input

Output

Warni

Display

Remote

Interface

Others

Overall

ut current harmonic
distortion
PFC (Full Load) > 0.99
Frequency Hz 50 / 60
Frequency tolerance Hz
Output Voltage V 220/380 , 230/400 , 240/415 ( 3Φ 4W+Earth )
Output Frequency Hz 50 / 60
Total Harmonic (Linear Load) ％ ≦3
Voltage
regulation
Dynamic ％ ±7 (10% ~ 90% Linear Load)
Frequency
regulation
synchronized ％ ±5
Overload ≦125% : 10minutes ; ≦150% : 1minute
Battery backup Intermittent Audib

le

ng

U continuous
LED UPS status : Normal、Bypass、Backup、Fault

LCD

Monitor l data、Fault records retrievedMonitor up to 31 PCs、Graphically display records and historica
Control
Standard RS232, Dry Contact Output
Optional SNMP card, Modbus card, Relay I l sensor box, SNMP+5 Ports Hub/O control card, Environmenta
Parallel Redundancy Yes ( 1+1 for tw acity only!) o UPSs of the same cap
EPO Standard (Local and Remote)
SRAM event log Yes (500 records)
Parameter configuration Yes
Hot Standby Installation Feasible
Battery temperature
compensation
Battery Start Standard

Efficiency

Transfer Time ms 0
Temperature ℃ 0～40
Humidity (Non d) condense ％ 90
Noise (One meter) dBA 65 65 68 68 70 70 70

Dimension Width mm 520
Depth mm 850

(Full Load)

Static ％ ±1

Interior
oscillator

PS abnormal

Normal ％ 94
ECO ％ 97

Height mm 1165

Table 3-1 Delta NH-series Technical Data

220/380 , 230/400 , 240/415

( 3Φ 4W+Earth )

％ < 5

45 ~ 65

Hz ±0.05

Input/Output、Bypass、Inverter、Frequency、Loading and Battery voltage、current

UPS abnormal message and intelligent self diagnosis

Remote control the Inverter and alarm、setup password、auto-dial warning

Optional

Weight Kg 125 125 175 175 210 210 244

3-5