CARLO GAVAZZI WM23-96 - PROGRAMMING User manual

Power Quality Analyzer

Analizzatore di Qualità

della Rete

USER MANUAL

MANUALE ISTRUZIONI

WM23-96

Modular system

Tecnologia modulare

CARLO GAVAZZI

Automation Components

WM23-96: Power Quality Analyzer

Plug and play module system;

Harmonic analysis; Wmax and PFmin

storage. These are only a few among

many other functions performed by

your WM23-96. 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

Plug and Play

Modules

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2Index

CARLO GAVAZZI

WM23-96, Power Quality Analyzer

FW rev. 01

TO BEGIN WITH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .04

■ Front panel description . . . . . . . . . . . . . . . . . . . .04

■ List and description of displayed measuring pages . . . .04

PROGRAMMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . .07

■ Access to the main menu . . . . . . . . . . . . . . . . . . .07

■ Change password . . . . . . . . . . . . . . . . . . . . . . . .08

■ System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .08

■ CT ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .08

■ VT ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .09

■ Dmd calculation . . . . . . . . . . . . . . . . . . . . . . . . .09

■ Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . .11

■ Total harmonic distortion . . . . . . . . . . . . . . . . . . .11

■ Digital outputs . . . . . . . . . . . . . . . . . . . . . . . . . . .12

❑Digital output 1 . . . . . . . . . . . . . . . . . . . . . . .12

❑Alarm digital output . . . . . . . . . . . . . . . . . . . .12

❑Digital output 2 . . . . . . . . . . . . . . . . . . . . . . .14

■ Analogue output . . . . . . . . . . . . . . . . . . . . . . . . .14

■ Setting of RS422/485 serial comm. port address .16

■ Digital filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

■ End of programming . . . . . . . . . . . . . . . . . . . . . .16

■ Reset of min. values . . . . . . . . . . . . . . . . . . . . . .17

■ Reset of max. values . . . . . . . . . . . . . . . . . . . . . .17

USEFUL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . .18

■ How to prevent key-pad programming . . . . . . . . .18

■ Retransmitted variables . . . . . . . . . . . . . . . . . . . .20

■ Alarm digital output . . . . . . . . . . . . . . . . . . . . . . .21

■ Displaying of programming menu . . . . . . . . . . . . .21

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

■Operations preliminary to the installation . . . . . . .22

Measuring pages description

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Index

Main menu

■Front panel cut-out . . . . . . . . . . . . . . . . . . . . . . .23

■Module combination . . . . . . . . . . . . . . . . . . . . . .24

■Available modules . . . . . . . . . . . . . . . . . . . . . . . .24

■Digital input connections . . . . . . . . . . . . . . . . . . .27

■Open collector output connections . . . . . . . . . . .28

■RS422/485 port connections . . . . . . . . . . . . . . . .28

■Elettrical connections diagrams . . . . . . . . . . . . . .30

TECHNICAL FEATURES . . . . . . . . . . . . . . . . . . . . . . . .32

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 recommend you to read this

instruction manual carefully.

HOW TO USE THE SYMBOLS

Go to the page where the previous main sub-

ject 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

subject or information.

This symbol indicates that more details are given

on the current subject.

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4To begin with

Measuring pages

■Frontal Panel Description

Back-lighted LCD Display.

Display previous page.

Display next page.

Access to programming or

setting confirmation.

■ List and Description of Displayed

Measuring Pages

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kW∑PF∑

kvar∑Hz

VL1-N VL2-N

VL3-N V∑

kW∑PF∑

kVA∑Hz

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To begin with

VT ratio

Index

Display total harmonic dis-

tortion for the single phase

voltages expressed as %.

Display total harmonic dis-

tortion for the single phase

currents expressed as %.

MW∑Max PF∑Min

Max Min

kW dmd

kVA dmd

Serial communication

status: r=Rx; t=Tx

(only with serial comm.

module inserted)

kW dmd, Max

kVA dmd, Max

kVA L1 kVA L2

kVA L3

Max

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6To begin with

Change password

kvar L1 kvar L2

kvar L3

W L1 Max W L2 Max

W L3 Max Max

W L1 W L2

W L3

PF L1 Min PF L2 Min

PF L3 Min Min

PF L1 PF L2

PF L3 PF ∑

A L1 A L2

A L3 Neutral current

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When the “AL” box (normally used for the alarm

indication) is active during the programming phase,

it means that the displayed value can be modified.

This rule applies to all the programming menus.

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Programming

Synchronization

Measuring pages

■Access to the main menu

To access to the programming

menus from the measuring and dis-

play phase, press the key: when

the instrument asks for the pass-

word, enter the correct PASS value

by means of the and keys;

afterwards confirm by means of the

key. If the password is correct

(when the instrument is new, the

password is 0), the instrument goes

to the main functions menu.

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Access to the

main menu

The scrolling of the measuring

pages is cyclic, at the end it returns

back to the first page on the left.

Display of alarm setting (AL1 and

AL2 if both alarms have been set).

Display of the variable connected

to the alarm.

V L1-2 V L2-3

V L3-1 V ∑

Active alarm indicator.

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8Programming

Dmd calculation

Index

■System

This function allows the operator to

select the electrical system choos-

ing between three-phase with neu-

tral (3P.n) and three-phase without

neutral (3P).

Choose by means of and

the “SySTEn”function, press

to enter the menu; then, select the

desired system by means of the

and keys and confirm with

■CT ratio

This function allows the user to

select the value of the CT ratio.

Example: if the CT primary (current

transformer) has a current of 300A

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■Change Password

This function allows the operator to

choose the desired password value

(from 0 to 1000).

Choose the “CnG.PASS”function

by means of the and keys,

then press to modify PASS,

enter the desired value by means of

the and keys and confirm

the new value with the key.

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By changing the VT and CT

ratio, the energy meters are

reset.

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Programming

Alarm output

Main menu

■VT ratio

This function allows the user to select the

value of the VT ratio. Example: if the pri-

mary of the connected VT (voltage trans-

former) is of 20kV and the secondary is

100V, the VT ratio will correspond to 200

(obtained by carrying out the following

calculation: 20000/100). Choose the

“Vt.rAtio”function by means of the

and keys; to enter the menu press

, then select the desired value by

means of the and keys and

confirm it with .

In order to store

the new value, carry out the reset

(rESEt YES

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1.2..

..2.1

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1.2..

..2.1

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and the secondary has a current of

5A, the CT ratio corresponds to 60

(obtained by carrying out the fol-

lowing calculation: 300/5). Choose

the “Ct.rAtio”function by means of

the and keys; to enter the

menu press ; then select the

desired value by means of the

and keys and confirm the new

value with . In order to store the

new value, carry out the reset

(rESEt YES

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