ELNet LT User manual

Installation & Operation Manual
ELNet LT
Electrical Measurements & Power Quality
Rev. 1.9

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Table of Contents
CHAPTER 1 ─ INTRODUCTION .......................................5
1.1 — About the ELNet LT Energy Powermeter ........
1.2 — How to use this manual ......................................... 6
1.3 — Safety Information ................................................ 7
1.4 — Warranty ................................................................ 8
1. — Your comments are welcome ...............................10
1.6 — Disclaimer ............................................................. 11
CHAPTER 2 — INSTALLATION ...................................... 12
2.1 — Contents of packaging .........................................12
2.2 — Mechanical mounting ..........................................14
2.3 — Wiring Schematics ...............................................16
2.4 — Rear Panel Connections .......................................2
2. — Digital Outputs and Inputs. .................................30
2.6 — Manufacturing Data. ...........................................31
CHAPTER 3 — USING ELNet LT POWERMETER .... 32
3.1 — Front Panel ...........................................................32
3.2 — Control Buttons ....................................................33
3.3 — Lock Utility ...........................................................34
CHAPTER 4 — NECESSARY ELNet LT SETTINGS ... 35
4.1 — Settings for Current/Voltage Transformer .........37
4.2 — Electrical Connection Check ...............................38
4.3 — Change language ..................................................42
4.4 — Time Settings ........................................................42
4. — Date Settings .........................................................43
4.6 — Setting energy pulse out .......................................44
4.7 — Delta/star Electrical network definition .............4

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CHAPTER — FRONT PANEL DISPLAYS ..............47
.1 — Current Voltage & Frequency .............................47
.2 — Reset I , V , F Peak values ..................................49
.3 — Power Display ....................................................... 1
.3.1 — Real time power display ................................ 1
.3.2 —Reset power peak values ................................. 3
.3.3 — Power Demand ............................................... 3
.4 — Power Quality ....................................................... 4
.4.1 — Wave Form Display ........................................
.4.2 — Harmonics Analyzer & THD ......................... 6
.4.3 — Alarm Setup .................................................... 7
. — Energy Metering .................................................. 8
. .1 — Main Energy Meter........................................ 9
. .2 — 2nd. Energy meter .......................................... 60
. .3 — T.O.U Energy .................................................. 61
. .4 — Periodic Energy meter ................................... 62
CHAPTER 6 — COMMUNICATION ....................... 63
6.1 — MODBUS Framing ..............................................63
6.1.1— RTU Transmission Mode ................................ 63
6.1.2 — The RTU Frame Format ................................ 64
6.1.3 — Address Field .................................................. 6
6.1.4 — Function Field ................................................ 6
6.1. — Data Field ....................................................... 66
6.1.6 — Check Field ..................................................... 66

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6.2 — Registers for ELNet LT Powermeter ............... 67
6.2.1 — Registers addresess ....................................... 68
6.3 — Communication Connections ..............................69
6.4 — Communication Settings ......................................69
6.4.1 — Communication Address ............................... 70
6.4.2 — Baud Rate ....................................................... 70
6.4.3 — Parity............................................................... 70
6. — Communication Set Up ........................................71
6. .1 — Set up Serial Communications .........................71
6. .2 — Set up Ethernet Communications ....................72
6.6 — Communication with UniArt Software ..............73
CHAPTER 7 — Spec f cat ons ........................................... 75
7.1 — Measurement & Display ......................................76
Index .................................................................................... 78
Append x A — Installat on & Conf gurat on Check L st ... 78

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CHAPTER 1 ─ INTRODUCTION
1.1 — About the ELNet LT Energy Powermeter
Large consumers of electricity e.g. factories, hotels, hospitals,
municipalities, need to know the history of their consumption
and the quality and the values of the power supply. Details such
as Voltage, urrent, Power Factor, Hertz, Neutral urrent,
Energy consumption can be displayed by the ELNet LT
Energy & Powermeter .
An additional feature of the Powermeter is the ability to
measure Harmonics. Part of the Electricity Supply Authority’s
bill reflects poor or good Harmonics in the consumer’s system,
therefore it is in his interest to monitor Harmonics and try to
improve it.
The ELNet LT Energy & Powermeter is a compact,
multi functional, three-phase Powermeter simple to install and is
especially designed to integrate into Building Management
Systems. It requires no special mounting and is ideally suited
for mounting on the front face of any standard electrical panel.
The onfiguration and Setup is menu driven, with password
protection.
ommunication with external devices is simple and is based on
standard known protocol.
Each ELNet LT Energy & Powermeter is carefully and
meticulously manufactured using quality components and the
latest production methods. Before leaving the factory each
ELNet LT Energy & Powermeter is calibrated and is
sent to the customer accompanied by the test certificate and
ertificate of ompliance ( .O. ).

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1.2 — How to use th s manual
We at ONTROL APPLI ATIONS Ltd, envisage this manual
to be used by three types of people, i.e. the Installat on
Techn c an, the Sen or Electr cal Eng neer and the end User.
For this reason this manual is divided into chapters for ease of
reference by each of these different people. There could be a
situation where two of the above mentioned tasks can be
combined, or in a rare instance one person could handle all three
tasks.
HAPTER 1, Introduction, describes the ELNet LT
Energy & Powermeter , its potential users, the readings it can
provide and some of its features in brief.
HAPTER 2, Installation, provides detailed instructions for
unpacking, mechanical mounting, and electrical wiring up
instructions for the Installat on Techn c an.
HAPTER 3, Using the ELNet LT Energy &
Powermeter, describes in detail front Panel, the functions of
the control buttons, and the Lock Utility.
HAPTER 4, Parameter Configuration & Settings explains in
detail the minimum parameters settings needed by the Sen or
Electr cal Eng neer to set up and configure the ELNet LT
Energy & Powermeter.
HAPTER 5, Front Panel Displays, is an easy to follow step-
by-step guide to obtain readings, graphs and tables.

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HAPTER 6, Communications provides details about the
ommunication capabilities of the ELNet LT Energy &
Powermeter , and how to Set Up.
HAPTER 7, Specifications, is a detailed list of specifications
of the ELNet LT Energy & Powermeter .
APPENDIX A, Installation & Configuration Check List,
provides a heck List to insure no important steps will be
missed during the initial set up.
1.3 — Safety Informat on
The purpose of this manual is to help you. Please read the
instructions carefully before performing any installation and
note any precautions.
• Ensure that all incoming A power and
other power sources are turned off before
performing any work on the ELNet LT
Energy & Power Powermeter . Failure
to do so may result in serious or even fatal
injury and/or equipment damage.
• If the ELNet LT Energy &
Powermeter is damaged in any way do
NOT connect it to any power source.
WARNING!

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• To prevent a potential fire or shock hazard,
never expose the ELNet LT Energy &
Powermeter to rain or moisture.
• Keep the surrounding area free of dirt and
clutter especially metal objects. Good
housekeeping pays.
• Inspect the cables periodically for cracks,
kinks or any other signs of wear.
• Keep children away.
• Do not pull the cords.
• Users should stay alert and not approach the
rear of the ELNet LT Energy &
Powermeter while tired or under the
influence of alcohol, medicines or any other
chemical substance that would tend to make
a person drowsy.
• Above all use common sense at all times.
1.4 — Warranty
ONTROL APPLI ATIONS Ltd provides a 12- Month
warranty against faulty workmanship or components from date
of dispatch under the condition that the product was properly
installed and used.
ONTROL APPLI ATIONS Ltd does not accept liability for
any damage that may be caused by natural disasters (such as
floods, fire, earthquake, lightening etc.).
ONTROL APPLI ATIONS Ltd does not accept liability for
any damage that may be caused by malfunction of the ELNet
LT
Energy & Powermeter.

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ONTROL APPLI ATIONS Ltd will advise the customer on
the proper installation and use of the ELNet LT Energy &
Powermeter , but will not accept any responsibility that the
instrument is suitable for the application for which it was
originally purchased.
This warranty may become void if the Installation, Parameter
onfiguration & Setting Instructions are not carried out
according to the instructions set out by ONTROL
APPLI ATIONS Ltd.
The ELNet LT Energy & Powermeter has no user
serviceable parts and should be opened and serviced by a duly
qualified authorized representative only. The sensitive
electronics could become damaged if exposed to a static
environment. This action would void the warranty.
This warranty is limited to the repair and/or replacement at
ONTROL APPLI ATION Ltd sole discretion of the defective
product during the warranty period. Repaired or replaced
products are warranted for ninety (90) days from the date of
repair or replacement, or for the remainder of the original
product’s warranty period, whichever is longer.
ONTROL APPLI ATIONS Ltd is always at your service to
advise the customer on any problem that may be encountered
regarding any installation, operation, parameter & configuration
settings or maintenance.

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1.5 — Your comments are welcome
ONTROL APPLI ATIONS Ltd. sincerely thanks you for
choosing our ELNet LT Energy & Powermeter . We are
confident that it will provide you with many years of trouble
free service and give you all the power and energy information
and history that you expected from the instrument when you
bought it.
While every effort was made to keep the information as reliable,
helpful, accurate and up to date as possible, all possible
contingencies cannot be covered. Technical or typographical
errors could occur, and we would be happy to receive any
comments, criticisms or notifications of any such errors from
you, our valued customer.
Address: FENIKS PRO d.o.o.
Zagrebška cesta 90
2000 Maribor
Slovenia
EUROPE
Tel: [phone]
Fax: [phone]
Electronic Address: [e-mail]

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1.6 — D scla mer
Information in this User Manual is subject to change without
notice and does not represent a commitment on the part of
ONTROL APPLI ATIONS Ltd.
ONTROL APPLI ATIONS Ltd supplies this User Manual as
is without warranty of any kind; either expressed or implied,
and reserves the right to make improvements and/or changes in
the manual or the product at any time.
While it is the intention of ONTROL APPLI ATIONS Ltd to
supply the customer with accurate and reliable information in
this User Manual, ONTROL APPLI ATIONS Ltd assumes no
responsibility for its use, or for any infringement of rights of the
fourth parties which may result from its use.
This User Manual could contain technical or typographical
errors and changes are periodically made to the information
herein; these changes may be incorporated in new editions of
the publication.

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CHAPTER 2 — INSTALLATION
In this hapter you will find the information and instructions
that the Installat on Techn c an needs to mount and connect the
ELNet LT Energy & Power Powermeter
• During operation, hazardous voltages are
present in connecting cables and terminal
blocks.
• Fully qualified personnel must do all work.
Failure to follow this rule may result in
serious or even fatal injury to personnel
and/or damage to equipment.
• Refer to Section 1.3 Safety information
before carrying out any installation.
• Read this manual thoroughly and make sure
you understand the contents before
connecting the ELNet LT Energy &
Powermeter to any power source.
WARNING!

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2.1 — Contents of packag ng
To unpack the ELNet LT Energy & Power Powermeter
The ELNet LT Energy & Powermeter is packed and
shipped in a carton approximately 24.5 cm long X 19 cm wide
X 12 and cm high.
Before opening the package, ensure the area, clean and dry.
Without using any sharp instruments, carefully open the carton
of the ELNet LT Energy & Powermeter.
Please check the contents of the carton, it should contain:
1. New ELNet LT Energy & Powermeter.
2. ELNet LT User Manual (This book).
3. Test ertificate and ertificate of ompliance ( .O. ).
4. 2 X two pole connector plugs.

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2.2 — Mechan cal mount ng
To Mount the ELNet LT Energy & Powermeter
1. hoose a suitable location, and prepare a
rectangular hole according to the dimensions
shown in Figure 2.1
Figure 2.1 Panel Cutout
Do not mount the ELNet LT Energy & Powermeter too
close to any main electrical conductors
Allow sufficient space to carry out maintenance to the back of
the ELNet LT Energy & Powermeter
NOTE!!
Width
90 mm
Height
90 mm

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2. Slide the ELNet LT Energy &
Powermeter into the pre-prepared
rectangular hole (ensure it is the right way
up), then push the four mounting clips into
position. Use mild force to ensure the clips
are securely positioned on the outer case of
the ELNet LT Energy & Powermeter.
3. Ensure the ELNet LT Energy &
Powermeter is firmly in place.
Figure 2.2 Mounting Clips

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2.3 — W r ng Schemat cs
To wire up the ELNet LT Energy & Powermeter
No galvanic connection with the measurement current wire
(the current wire is passing through the current T hole).
Figure 2.3 Schematic Wiring Diagram "Star" connection

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No galvanic connection with the current measurement
wires, the current wires are passing through the current
transformer opening.
Figure 2.4 Schematic Wiring Diagram "Delta" connection

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No galvanic connection with the current measurement
wires, the current wires are passing through the current
transformer opening.
Figure 2.5 Schematic Wiring Diagram "Open Delta - 2PTs
2CTs/3CTs" connection

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PowermeterEnergy & LT 2013 ELNet New model
The current measurement wires are connected with screws
to build in standard connectors or optional 60 mm
connectors.
Figure 2.6 Schematic Wiring Diagram "Star" connection

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The current measurement wires are connected with screws
to build in standard connectors or optional 60 mm
connectors.
.
Figure 2.7 Schematic Wiring Diagram "Delta" connection