CARLO GAVAZZI WM4-96 - PROGRAMMING User manual

WM4-96: Modular Universal Utility

Meter and Power Analyzer

Harmonic analysis; Energy meters;

Load profile; Plug and play module

system; SMS reception and trans-

mission. These are only a few among

many other functions performed by

your WM4-96. What’s more, Carlo

Gavazzi means ISO9001 certification,

a working experience of many

decades and a widespread presence

all over the world. All this because

we want our customers to have the

top service and the top products.

Welcome in the Carlo Gavazzi world

and compliments for your smart

choice. Visit our website and

evaluate our range of products:

www.carlogavazzi.com

CARLO GAVAZZI

Automation Components

Top performances by

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2Index

Index

WM4-96 Instruction manual: INDEX

CARLO GAVAZZI

WM4-96, 32-bit µ-processor based modular universal utili-

ty meter and power analyzer

FW rev.C.01

TO BEGIN WITH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

■Front panel description . . . . . . . . . . . . . . . . . . . . .7

■Display adjustment . . . . . . . . . . . . . . . . . . . . . . . .7

DISPLAYING OF THE VARIABLES . . . . . . . . . . . . . . . . .8

■Page “00”, starting page . . . . . . . . . . . . . . . . . . . .8

■How to scroll the display pages . . . . . . . . . . . . . . .9

■How the F key changes function depending on . . . .

the display page . . . . . . . . . . . . . . . . . . . . . . . . . . .9

❏Pages from “00”to “13”: displaying of the . . . .

variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

❏Pages from “14”to “18”: displaying of the . . . .

MIN and MAX values . . . . . . . . . . . . . . . . . . .9

❏Pages from “19”to “24”: displaying of the . . . .

harmonic analysis . . . . . . . . . . . . . . . . . . . . .10

❏Displaying of the Energy Meters . . . . . . . . . .11

❏Page “25”: displaying of the total energy . . . . .

meters . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

❏Page “26”: displaying of partial energies . . . .10

❏Page “27”: displaying of GAS and . . . . . . . . . . .

WATER meters . . . . . . . . . . . . . . . . . . . . . . .12

❏Page “28”displaying of the instrument’s . . . . . .

configuration . . . . . . . . . . . . . . . . . . . . . . . . .12

❏Displaying of the load profiles . . . . . . . . . . . .12

❏Displaying with “pass code”access . . . . . . . .14

❏Pass “1000”: displaying of recorded events . .14

❏Pass “999”: storage of the consumed energy .15

❏Pass “998”: displaying of recorded var dmd 16

▲

Index

Front panel

❏Pass “997”: reset of data memory . . . . . . . . .16

❏Pass “996”: reset of load profiles . . . . . . . . . .16

LET’S START . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

■Main menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

■Change password . . . . . . . . . . . . . . . . . . . . . . . .18

■Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

❏Analogue measuring input module . . . . . . . . . .

installed . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

❏Analogue measuring input module . . . . . . . . . . .

not installed . . . . . . . . . . . . . . . . . . . . . . . . .21

❏Enabling the tariffs’remote control . . . . . . . .22

■System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

■CT ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

■VT ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

■Display page . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

■MIN MAX values . . . . . . . . . . . . . . . . . . . . . . . . .28

■Selecting the events . . . . . . . . . . . . . . . . . . . . . . .29

■Data storage . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

■Average values calculation . . . . . . . . . . . . . . . . . .31

ENERGY METERS MANAGEMENT . . . . . . . . . . . . . .34

■Access to the management menu of the energy meters 34

❏Single tariff management . . . . . . . . . . . . . . . .34

❏Dual tariff management: whole year . . . . . . . .34

❏Programming of the holidays period . . . . . . . .37

❏Multi-tariff management of the energy meters 39

❏Installed power . . . . . . . . . . . . . . . . . . . . . . .41

❏Reset of the energy meters . . . . . . . . . . . . . .42

❏Reset of the GAS meters . . . . . . . . . . . . . . . .43

❏Reset of the WATER meters . . . . . . . . . . . . .43

OUTPUTS / OTHER SETTINGS . . . . . . . . . . . . . . . . . .44

■Displaying of the harmonics . . . . . . . . . . . . . . . . .44

■Setting of date/hour . . . . . . . . . . . . . . . . . . . . . . .44

■Digital outputs . . . . . . . . . . . . . . . . . . . . . . . . . . .45

❏Pulse output . . . . . . . . . . . . . . . . . . . . . . . . .46

▲

4Index

The connecting instrument

❏Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

❏Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . .48

❏Remote control . . . . . . . . . . . . . . . . . . . . . . .49

■Serial port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

❏RS232 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

❏Modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

❏GSM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

❏How to use the SMS . . . . . . . . . . . . . . . . . . .52

❏RS485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

■Digital filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

■Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

USEFUL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . .56

■What is ASY . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

■Operations preliminary to the installation . . . . . . .59

■Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . .59

■Front panel cut-out . . . . . . . . . . . . . . . . . . . . . . .61

■Mounting the instrument . . . . . . . . . . . . . . . . . . .61

■Position of slots and relevant modules . . . . . . . . .62

■Available modules . . . . . . . . . . . . . . . . . . . . . . . .62

❏Digital outputs module . . . . . . . . . . . . . . . . . .62

❏Digital inputs / serial output modules . . . . . .64

❏Power supply modules . . . . . . . . . . . . . . . . . .64

■Optional modules connection . . . . . . . . . . . . . . .65

❏Digital inputs . . . . . . . . . . . . . . . . . . . . . . . . .65

❏Relay output . . . . . . . . . . . . . . . . . . . . . . . . .66

❏Open collector output . . . . . . . . . . . . . . . . . .66

❏RS485 Serial port . . . . . . . . . . . . . . . . . . . . . .66

ELECTRICAL DIAGRAMS . . . . . . . . . . . . . . . . . . . . . .68

❏3-phase connection, balanced load . . . . . . . .68

❏3-phase, 4-wire connection, unbalanced load 69

❏3-phase, 3-wire ARON connections . . . . . . . .70

❏Single phase connection . . . . . . . . . . . . . . . .71

TECHNICAL FEATURES . . . . . . . . . . . . . . . . . . . . . . . .72

▲

To begin with

How to scroll the pages

Index

HOW TO USE THE SYMBOLS

Go to the page where the previous main subject

is described.

Go to the page where the next main subject is

described.

Go to the page where the subject written on the

top of the current page starts.

Go to the page where the subject written on the

top of the current page ends.

This symbol indicates a particularly important sub-

ject or information.

This symbol indicates that more details are given

on the current subject.

We suggest you to keep the original packing in case

it is necessary to return the instrument to our

Technical Service Department. In order to achieve

the best results with your instrument, we recom-

mend you to read this instruction manual carefully.

■WM4-96 PHILOSOPHY (IMPORTANT)

WM4-96 is able to meet all the requirements in the

field of energy management and of power quality analysis.

WM4-96 can work, according to the needs, in three differ-

ent operating modes, obtained by means of hardware and

software configurations.

- direct measurements for monitoring the network quality

and energy metering (LV or MT/HV connection).

▲

The menu, being without

measuring input module,

is modified.

The menu, without

measuring input mod-

ule, is no more available

▲

6To begin with

Page 00

- indirect power energy measurements by interfacing the meter

of the energy supplier (LV or MV/HV connection);

- direct measurements for the instantaneous variables (LV

connection) and indirect measurements for the energy

variables (LV or MV/HV).

In all operating modes it’s possible to add the management of water

and gas meters and the tariff management of the energies both from the

instrument and from external inferfacings. The easy management and

flexibility of WM4-96 is possible thanks to the plug and play modular

technology by Carlo Gavazzi and to a powerful 32-bit µProcessor. Also

the analogue measuring input module can be adapted to the users’

needs: the instrument acknowledges its presence adapting its electric

features and its operating mode accordingly. The following icons will help

the user to identify the instrument’s modifications.

■WM4-96: the connecting instrument.

WM4-96 “enjoys communicating”:

•through the wide graphic display and the easily readable

graphs such as the LOAD PROFILES or the harmonic dis-

tortion hystograms;

•through sending and receiving SMS messages by means

of the GSM mobile network. For example, by sending an

SMS message to a pre-defined mobile phone number,

WM496 informs the user that an alarm has been enabled

or disabled; the user himself can ask the instrument, by

an SMS, information about the measured variables.

The manual describes the modification of the menu

in case the measuring inputs module is not installed.

▲

To begin with

Energy meters

WM4-96 philosophy

■Front panel description

Exit from the menu

and cancel the

choice you have

made.

It allows the user to

access some func-

tions relating to the

displayed variables.

Scroll to the

Scroll to

the next

page

Access to pro-

gramming or

settings’confir-

mation.

Alphanumeric indication by means of a 7-segment

graphic LCD (128x64 dpi):

•of the measured variables;

•total number of energy meters: 4 (9 digits);

partial: 48 (6 digits);

•time periods: 4 programmable within 24 hours;

•programmable seasons: 3 within 12 months.

■Display contrast adjustment

In order to get the best readability of the display, hold the

keys and pressed simultaneously, until the desired

readability is reached; the adjustment is cyclical.

The contrast can be adjusted only during the

measuring phase (from page 00 to page 28).

▼▲

▲

8Displaying of the variables

Harmonic analysis

Index

■Page “00”, Starting page

When the instrument is swtched on, the main page of variable

displaying is shown. The first page, called page “00”, is the only one

configurable by the user who can choose the variables to be dis-

played in the 4 displaying areas. In all the other pages the type of

variables displayed in the four displaying areas is automatically

selected and cannot be changed. In the table on page 59 you can

see the contents of all the pages that can be displayed by WM4-96.

The bottom part of the display, where the status of the digital

output is indicated in 4 specific sections, is common to all the

pages. If the outputs are not present, only an empty black rectan-

gular frame is shown, if the outputs are present, the display will

show a letter followed by a number. Four different letters may

appear:

“P”indicates a pulse output

"A" indicates an alarm output. In this case the letter can be white in

a black background to indicate that the output is in alarm, or

black in a white background to indicate that the output is not in

alarm.

"D" indicates a diagnostic output. This is a particular type of alarm

that is activated when the neutral wire connection is missing.

The alarm is active when the background is black, while the

alarm is not active when the background is white.

“R”Remote control is activated (see Remote Control on page 49)

The NUMBER that follows the letter is the progressive number of

the output (from 1 to 4).

Measured variables

Clock

Number of

the displayed

page

▲

Displaying of the variables

Load profiles

Front panel

■How to scroll the various pages

To scroll the various pages, use the and keys.

Pressing the key in any one of the display pages,

you access to the programming phase. The key,

on the contrary, has various functions depending on the

selected page.

■How the key changes function depending

on the display page.

❑Pages from "00" to "13" (00 only without measur-

ing input module). Displaying of the variables

key enabled if the alarm latch function is activated,

access to the reset of the latch alarms. To reset the latch

alarm press the key; after that the instrument will dis-

play: “WILL YOU RESET THE LATCH ALARMS?”; If you

choose you will enable the reset procedure, if you

choose there won’t be any reset. The reset of the latch

alarm is only available if the alarm event is finished.

❑Pages from "14" to "18" (from 01 to 02 without

measuring input module). Displaying of the “MIN”

and “MAX”values.

The key is active, that means you have access to

the reset function of the “MIN”and “MAX”values. To reset

the “MIN/MAX”recording, proceed as follows: enter the

function by pressing the key, after that a message will

appear: “WILL YOU RESET MIN/MAX VALUES? WILL YOU

CONTINUE?"; if you choose there won’t be any reset,

if you choose the reset will not be made. The and

keys allow you to select the range/value that you want

to reset; to confirm the reset press the key again. To exit

the function press the key again.

▼▲

▲

10 Displaying of the variables

Display of Gas Water meters

WM4-96 philosophy

❑Pages from "19" to "24" (from 10 to 11 in single

phase mode) Displaying of the harmonic analysis

When the instrument is supplied, these pages are

not enabled, see page 44 to enable them. The

key is active: access to the detailed analysis of the

harmonics. After pressing the key, a pointer appears

along the horizontal axis (see figures below). To display the

data relating to the single harmonics move along the his-

togram using the (moves from left to right) and

(moves from right to left) keys. For each harmonic the instru-

ment measures the % value with reference to the funda-

mental and the single harmonic angle between the “V”har-

monic and the “A”harmonic of the same order.

▼▲

Line phase being measured

and relevant voltage or cur-

rent value (L1-L2-L3).

Total harmonic distortion and

relevant value in percentage

Phase angle between the voltage and current harmonic

of the same order: a phase angle between 0°and 90°and

between 270°and 360°corresponds to a generated har-

monic; an angle between 90°and 180°and between 180°

and 270°corresponds to an imported harmonic.

Harmonic order (h1 to h50),

relevant conventional sign

(- or +) and value of the har-

monic given in percentage.

The pointer

shows which

harmonic is

being meas-

ured

SIMPLE ANALYSIS:

Harmonic order (h1 to h50),

of the phase being measured

(L1-L2-L3) and relevant

absolute current or voltage

value of the harmonic.

DETAILED ANALYSIS:

Table of contents

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