Carlo Gavazzi WM5-96 User Manual

WM5-96

Smart Power Quality Analyzer

Instruction manual

ARMPowered

PRG

measures

WM5-96

SmartPowerQuality Analyzer

Class0.2 A/V

Thank you for choosing our products

WM5-96

Smart Power Quality Analyzer

WM5 96:

• High accuracy (class 0.2 A/V);

• High calculation performances (ARM®technology) for a fast analysis of the signal (FFT up to the 63

• high connection capabilities (RS485 115.2 kbps, RS232, front optical port).

harmonics);

WM5 96 is the state-of-the-art tecnological answer to your needs of power quality analysis.

eover, you can count on a ISO9001/VISION 2000

Mor certified company structure, an experience of many years

and a wide-spread presence both in Europe and all over

the world. All this in order to guarantee the customer with

top-quality service and the best products.

Welcome in Carlo Gavazzi and our compliments for your

choice. You can evaluate the complete range of our prod-

ucts on the CARLO GAVAZZI web-site:

www.carlogavazzi.com/ac

CARLO GAVAZZI

Automation Components

ntroduction

Index

WM5-96 Instruction Manual

M5 96 philosophy, ARM tecnology . . . . . . . . . . . . . . . . . . . . . . . .4

Optical and communication port . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Becoming aquainted with WM5

Programming WM5 96

Front panel description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

ain measuring page “00” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Adjustment of display contrast . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

nstantaneous variables measurements . . . . . . . . . . . . . . . . . . . . . .6

THD measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Digital input status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Digital output status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Energy meters pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Logged events page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Alarm status page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Info pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Programming keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Resets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Access to programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Change password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

CT ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

VT ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

DMD/AVG calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Installed power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Meters menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Programming example of the tariff parameters . . . . . . . . . . . . . .18

Display page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Digital inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Digital outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Logic and alarm parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Examples of alarm parameters pr

Events selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

Analog outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

Programming example of the analog outputs . . . . . . . . . . . . . . . .30

Serial outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

Optical port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

Ethernet port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

Digital filter

Digital filter programming examples . . . . . . . . . . . . . . . . . . . . . . .34

Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

Language

Serial number and Meter Info. . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

Keypad lock, lock of acces to programming and reset menu . . . . . . . . .37

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

ogramming

. . . . . . . . . . . . . . . .

Layout and list of modules

Lay-out and list of modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

WM5-96 Instruction Manual

Index

Installation

Wiring diagrams

Technical specifications

Panel cut-out and dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

Fixing, removing the modules and mounting the instrument to the

panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

Sealing the instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

-phase, 2-wire input connections (1P) . . . . . . . . . . . . . . . . . . . . .40

2-phase, 3-wire input connections (2P) . . . . . . . . . . . . . . . . . . . . .40

3-phase, 3 and 4-wire input connections - balanced load (3P) . .40

3-phase, 3-wire input connections - unbalanced load (3P) . . . . . .41

3-phase, 3-wire ARON input connections (3P) . . . . . . . . . . . . . . .41

3-phase, 4-wire input connections, unbalanced load (3P+N) . . . .41

Power supply, analogue and digital output modules . . . . . . . . . . .42

Digital inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

RS485 serial port (AR1034 9600bps, AR2040 115200bps)

Input specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

Output specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

Software functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

Wm5Soft parameter programming and variable reading software . . .45

Time period management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

Harmonic distortion analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

General specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

Supply specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

Revenue approval Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

Function description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48

Insulation between inputs and outputs . . . . . . . . . . . . . . . . . . . . .48

Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

Used calculation formulas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

List of the variables that can be connected to . . . . . . . . . . . . . . .50

. . . . . .42

We suggest you to keep the original packing

n case it is necessary to return the

i instrument to our Technical Service Department. In order to achieve the best results with your instrument, we

recommend you to read this instruction man-

al carefully. If the instrument is used in a

u manner not specified by the producer, the

rotection provided by the instrument may be

p impaired. Maintenance: to keep the instrument clean, use a slightly damp cloth; do not use any abrasives or solvents. We recommend to disconnect the instrument before cleaning it.

WM5 96 philosophy, ARM®technology

Introduction

WM5-96 Instruction Manual

his symbol indicates a particularly important sub-

T ject or information.

This symbol indicates that more details are given

n the current subject.

This symbol indicates a suggestion for the user.

WM5 96 is a brand new instrument with a high level of performances and connection capability. Actually, WM5 96 is a synergy of digital

components that, coordinated by an ARM to perform class 0.2 measurements for current and voltage, the management of 3 serial ports, 8 analogue outputs, 12 digital inputs, 16 alarms and a complete and functional management of the energy

meters tariffs. The ARM®-based microprocessors are used in the upto-date technology such as the palmtop computers: this makes of WM596 a real computer at the service of the electrical parameters analysis and of the electrical tariff management, even the more complex one.

processor, allows the user

Optical port and communication

WM5 thanks to its great flexibility allows to set in the menu (pls see

the relevant section) also the modules being installed in the base (display module). In order to make the programming of the modules easier, it is advisable to note the identification code (ex. AO2050) and the relevant installation slots (A, B, etc.): we suggest to fill in the special module on the last page of this manual.

The front optical port allows a fast and practical communication between PC and instrument. Thanks to the WM5Soft software it’ll be possible to read the measurements and programm the instrument even if the latter is already installed on the electrical board.

Basic instrument,

display.

Modules

WM5-96 Instruction Manual

ARMPowered

easures

WM5-96

SmartPowerQuality Analyzer

Class0.2 A/V

Front Panel Description

Becoming acquainted with WM5 96

When switched on, the alarm LED will be active (blinking for a vir-

ual alarm, fixed light for a real alarm).

Graphic display.

This key allows the user to access programming (only page 00) or the details of the measurement.

Keys allowing the user to scroll the measuring pages, display the details relating to the measurements: dmM=dmd maximum value, dmd=avg value, max=maximum value, min=minimum value. In the page relating to the meters it’s possible to read the value of the energy counted per month (JAN...DEC), per tariff (T01...T12) and per phase (L1, L2, L3). The contemporaneous pressure of these keys also allows the adjustment of the display

Optical communication port (standard ANSI).

Main measuring page “00”

a b

3 4

When the instrument is switched on, the operating system will be loaded; this implies a short waiting time (during this phase the display shows a sand glass which will stop moving only when the loading phase is completed). Then, the instrument will start measur-

ing and will display the window on the left. This page, called "P00" page, is the only page which can be configured by the user who can choose, by means of the programming, which variables are to be displayed in the 3 sections

(a, b, c) (see “display page” in the program-

ming menu). The (d) section indicates the consumption of the measured energy (kWh and kvarh), a graphical indicator (d1) allows a quick reading of the % value relating to the active system power being used with reference to the installed power value previously set in the instrument. In the other measuring pages, the variable type displayed in the four sections (a, b, c, d) is pre-established and cannot be modified. The display of the lower part of the display is common to all measuring pages.

Shows the displayed measuring page, the displayed number will

incr

ease or decr

Shows the sequence of the phase rotation L1-L2-L3 or L3-L2-L1

ease depending on the displayed page.

(2a).

Shows the current tariff (T01, T02, T03, T04...T12) of the energy meters.

Shows the current time (only if this function has been enabled).

Adjustment of display contrast

To have a clear reading in every condition of visibility, properly adjust the display contrast. Press the “ ” keys contemporaneously: the contrast starts increasing; release the keys when the display contrast has been properly adjusted.

easurements of instantaneous variables

a b

Becoming acquainted with WM5 96

WM5-96 Instruction Manual

The various measuring pages of WM5 96 display the necessary infor-

ation for the quality analysis of the network. To scroll (1) the measur-

m ing pages, use the “ ” keys; to display the details of the measures, press the “S” key; to scroll the available details, use the “ ” keys

(3); to exit the details displaying phase, press the “S” key.

he details for the instantaneous variables are the following:

dmM= maximum dmd value, dmd= dmd value, max= maximum value, min= minimum value.

For any information on the meaning of “dmd”, see page 14. Reset of details. Keeping the “S” key pressed for approx. 2 seconds,

it’s possible to reset each variable of the selected detail (dmM, dmd, max, min). The instrument displays a message confirming the user he has entered the reset mode: choose “YES” by means of the “ ” keys , confirm with the “S” key and then select the variable you want to reset by means of the “ ” keys, then press “S” to proceed with the reset; to exit the reset mode, keep the “S” key pressed for at least 2 seconds.

THD Measurements

Thanks to the powerful calculation capabilities of the ARM® technologies, WM5 96 allows an accurate analysis of the harmonics up to the 63rd.

Voltage or current value referred to the relevant measured phase. (V1, V2, V3, A1, A2, A3).

Total harmonic distorsion expressed as a percentage value.

Histogram of the harmonics. To display the details of the harmonics, press the “S” key

(2).

An arrow is displayed on the horizontal axis of the graph to identify the harmonics being examined. To scroll the harmonics one by one, use the “ ” keys (2).

Harmonic order (from h1 to h 63), for single phase and the relevant absolute voltage or current value.

Harmonic order (from h1 to h63), the detected conventional sign (-,o,+) and its relevant value expressed as a percentage.

Phase angle between the fundamental and the voltage and current harmonic of the same order: angle between 0° and 90° and between 270° and 360° corresponds to a generated harmonic, an angle between 90° and 180° and between 180° and 270° corresponds to an imported harmonic.

The phase angle (f) between the fundamental and the voltage and current

harmonic of the same or

der will be displayed only if the measurements are taken in a threephase system with neutral.

To exit the display of measurement details, press the “S” key.

Note: The display of histograms is available only up to the 50

harmonic (h50). For the other harmonics from h51 to h63 only the numeric values are available.

WM5-96 Instruction Manual

igital input status

Becoming acquainted with WM5 96

This page displays the status of the digital inputs (b) (0, 1, 2) corresponding to each slot (a). The “ ” symbol will be shown on the right

f a close contact, while the “ ” symbol will be shown on the right of

o an open contact, if the digital input is set as “Totalizer” the symbol “ “ will be displayed.

It’s possible to display the values of the cofigurated totalizer (GAS, Water...) by keeping the “S” key pressed, and scroll the details by keeping the “ ” keys pressed. To exit the display of the measurement details press the “s” key.

Digital output status

Energy meter page

This page displays the status of the digital outputs (b) (0, 1, 2, 3) corrsponding to each slot (a). If the contact or contacts are ON, the “ ” symbol will be displayed. If the contact or contacts are OFF, the “ ” symbol will be displayed. If the digital output is set as “pulse output”, then the symbol “

“ will be displayed. The detail function is not avail-

able in this page.

This page displays the imported kWh (a), exported kWh (b), imported kvarh (c) and exported kvarh (d) energy meters. It’s possible to enter the details of the meters by keeping the “S” key pressed (2), and scroll the details by keeping the “ ” keys pressed (3).

The countings of the energies can be scrolled divided by:

month (JAN...DEC), tariff (T01...T12), phase (L1, L2, L3).

o enter the details of the meters

T starting fr

om the division by phase,

press the “ ” key first, to start

om the division by month, pr

fr key first.

To exit the display of the measurement details press the “s” key.

ess the “ ”

ogged events page

Becoming acquainted with WM5 96

WM5-96 Instruction Manual

hanks to the great logging capability of WM5 96, it’s possible to log

T a great number of events and manage their displaying, one by one. The page always displays the last logged event which is given a pro-

gressive number (a). The page is complete with all the important information relevant to the logged event: date (b), time (c), type of event

alarm, min, max, etc.) (d), variable relevant to the event (e). Should the

( alarm refer to an alarm, a window (f) summing up all the set-point

nformation (see also following paragraph “alarm status page”).

To display all the logged events one by one, press the “S” (2) key, and

scroll the events with the “ ”.keys.

To display the first logged event, press, first press the “ “ key.

Alarm status page

To exit the detailed display of the events, press the “S” key.

Thanks to this page, it’s possible to have the complete control of the set alarms: ON if enabled, OFF if disabled. For the alarms which are not enabled, the display shows two horizontal hiphens. The column under the “ALARM” indication identifies the alarm group, for example

esents the gr

01 to 04 r their status indicated on the right.

epr

oup of the first 4 alarms (from 1 to 4) and

Press the “S” key to display the details (2) of each set alarm (c) (from 1 to 16): the values of the programmed set points (e), the alarm type (d): UP alarm if the “AL” symbol is in the (d1) position as shwon in the figur

is in the (d2) position or DOWN alarm if the “AL” symbol is in the (d3) position. Moreover, the display shows the alarm status (g) which can be ON or OFF and the value of the alarm variable

To go from one alarm to the other, use the “ ” keys. To exit the display of the alarm status press the “S” key.

e on the right, WINDOW alarm if the “AL” symbol

(h).

Further information on the alarms and the set-point adjustment is given in the “alarms programming” section of this manual.

To display the details of the 01 alarm, press the “ ” key first.

WM5-96 Instruction Manual

nfo pages

METER INFORMATION

TANDARDS:

kWh: EN62053-22 CL.0,5 kvarh: EN62053-23 CL.2

P37

METER INFORMATION

TEST OUTPUT CONSTANT: OPTICAL: kWh+, TOT

1.000 Wh/PULSE

OUT C0: kWh+ TOT

1.000Wh/PULSE

Becoming acquainted with WM5 96

he last pages in the “display” mode show the main information relat-

T ing to the programming of the instrument. These data are also available when the instrument is completely sealed.

The first of the 4 pages (1) only the standards to which the instrument refers (a, b) are displayed.

n the 2nd page (2) the output specifications of the (infrared light) opti-

I cal port and open-collector output (C0) are displayed if these are used

o retransmit the energy.

t In the 3rd page (3) the following data are displayed: system measurement (a) the example figure shows the 3 phase 4 wire symbol, CT and PT ratio selected (c, d) and the DMD time selected (e). In the 4th page (4) the following data are displayed: serial number of the instrument (a), production year (b), firmware release (c), measuring input specifications, (d).

P38

METER INFORMATION

SYSTEM CT RA

TIO PT RATIO 1.000 DMD TIME 15 min

P39

METER INFORMA

SN YEAR 2008

BI3230033001P

REV 2.1.5.0 (AV5) INPUT 3x230 (400)V

5 (10)A, 50/60Hz

1.000

TION

P40

WM5-96 Instruction Manual

rogramming keypad

1 2 3

Programming WM5 96

The “S” (1) key is used to enter programming, confirm the selected or

odified data and go back to the previous data if pressed for at least

m 2 seconds. The “ ” keys at N. 6 are used to scroll the menus and modify the selected values/data. To modify the values proceed as follows: the “ ” (2) key increases in a cyclical way the selected digit

rom 0 to 9, to move to the next digit, use the “ ” (3) key, also in this

f case the system is cyclical.

Example, enter the value 213: starting situation 000, press “ ” twice to increase the number up to 2, then press “ ” to go on to the next digit (on the right); the instrument displays 200, press “ ” once to increase the number to 1, then press “ ” to go on to the next digit (on the right); the instrument displays 210, press “ ” three times to increase the digit to 3, press “S” to confirm the value. If you do not want to confirm the value, but only to modifiy it, press the “ ” key.

Resets

PASS ?

Access to programming

PASS ?

0000

123...

0000

Measure

> 2s

Measure

> 2s

By means of a single command and only from the “P00” page, you can carry out the reset of all the min. and max. values, the dmd and dmd max values, the reset of all the logged events and of the alarms with latch. To carry out this reset command you have to enter some numeric codes: press the “S” key, the instrument displays the “ ”

PASS?

indication. Enter by means of the “ ” keys the following numeric codes depending on the reset you want to carry out.

5784= reset of all the minimum and maximum values;

5785= reset of all the “dmd” and “dmM” (dmd max) values;

7239= reset of all the “events”;

9288= reset of the alarms with latch.

To access the programming menus from the measuring and display phase, press the “S” key (only from the “P00” page), when the password “PASS?” is requested, enter the correct PASSWORD value by means of the “ ” keys, then confirm by pressing the “S” key again. If the PASSWORD is correct (for all instruments the PASS value when they leave the factory is “0”), the instrument will enter the main menu. To cancel the choice and go back to the measuring mode, press the “S” key for at least 2 seconds.

**********MMAAIINN MMEENNUU*********

CHANGE P

MODULES SYSTEM

CT RATIO

RREEVV.. 11..44..22..66 ((AAVV55)

ASSWORD

Measure

)

> 2s

Menu title.

Menu.

Scroll bar.

Firmware revision of the instrument.

ype of measuring analogue output being mounted on the instru-

T ment.

Programming WM5 96

WM5-96 Instruction Manual

Change password

******MMAAIINN MMEENNUU*****

CHANGE PASSWORD

MODULES SYSTEM

T RATIO

RREEVV.. 11..44..22..66 ((AAVV55)

******MMAAIINN MMEENNUU*****

HANGE PASSWORD

ODULES

NUOVA PASS ?

YSTEMA

CT RAGIO ORTO TA

max

RREEVV.. 11..44..22..66 ((AAVV55)

Confer

Modules

******MMAAIINN MMEENNUU*****

CHANGE PASSWORD

MODULES

SYSTEM

CT RATIO

RREEVV.. 11..44..22..66 ((AAVV55)

MMOODDUULLEESS CCOONNFFIIGGUURRAATTIIOON

SLOT A

SLOT B SLOT C

AAOO22005500 ((AA00,, AA11) AANNAALLOOGG OOUUTTPPUUTT 00--2200mmA

This function allows the user to modify the PASS value with a new

alue (from 0 to 1000). Press the “S” key and when the instruments

Measure

v requires a new PASS (2) enter the desired value by means of the “

” keys and confirm the new value with the “S” key. The instrument

> 2s

goes back to the main menu.

)

The instrument shows the maximum and minimum limit of the

Go back

000

1000

)

123...

> 2s

Measure

value available for the password.

The WM5 96 does not support the automatic acknowledgment of the installed modules, therefore this information must be entered using

> 2s

the “MODULES” menu. Choose by means of the “ ” keys the modules menu, press “S” to confirm and then select by the “ ”

)

keys the relevant slot A, B, C, D or E (where slot A is the first on the top right, watching it from the front of the instrument, and slot E refers to the central housing). Confirm the highlighted slot with the “S” key

Go back

)

and then select the code of the module (the code is written on the module itself): the instrument will also display a brief description of the selected code. The code of the module is placed on the side label

> 2s

of the module itself.

o confirm the code of the selected module,

press the “S” key.

Go back

> 2s

MMOODDUULLEESS CCOONNFFIIGGUURRAATTIIOON

AO1059 AO2051

AO2050

AAOO22005500 ((AA00,, AA11) AANNAALLOOGG OOUUTTPPUUTT 00--2200mmA

Confirm

)

WM5-96 Instruction Manual

ystem

********** MMAAIINN MMEENNUU *********

HANGE PASSWORD

C MODULES

SYSTEM

T RATIO

RREEVV.. 11..44..22..66 ((AAVV55)

)

Measure

Programming WM5 96

his function allows the user to select the type of electrical system

T choosing among: 1- single phase 2 wires (1-PHASE 2-WIRE),

> 2s

2- dual phase 3 wires (2-PHASE 3-WIRE), 3- three phase 3 wires and 1 CT balanced load (3-PH 3W+1CT BAL.),

hree phase 3 wires unbalanced load (3-PH 3W UNBAL.),

4-t 5- three phase 4 wires unbalanced load (3-PH 4W UNBAL.).

CT ratio

Confir

********** MMAAIINN MMEENNUU *********

HANGE PASSWORD

1-PHASE 2-WIRE

MODULES

-PHASE 3-WIRE

SYSTEMA

-PH 3W+1CT BAL.

T RATIO TA

3-PH 3W UNBAL

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Confirm

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ODULES

YSTEM

CT RATIO

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CHANGE PASSWORD MODULES SYSTEMA

CT RATIOORTO TA

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RAPP min max

A ?

. T

1.000

0.100

6000

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Choose by means of the “ ” key the SYSTEM function (1), press the “S” key to confirm, then select by means of the “ ” keys the desired system (2) and confirm the selection with the “S” key.

> 2s

)

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This function allows the user to select the value of the CT ratio (pri-

Measure

mary/secondary ratio of the current transformer being used). Example: if the CT primary (current transformer) has a current of 300A and the secondary a current of 5A, the CT ratio corresponds to 60 (obtained

> 2s

using the following calculation: 300/5). Choose the CT RATIO function

)

(1) by means of the “ ” keys and confirm the selection with the

“S” key. Then select the desired value by means of the “ ” keys

(2) and confirm the value with “S”.

Go back

> 2s

)

The instrument displays the maximum and the minimum value available for the CT ratio.

VT ratio

Confir

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MODULES SYSTEM CT RATIO

VT-PT RATIO

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MODULES SYSTEM CT RATIO ORTO TA

VT-PT RATIOORTO TA

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VT RA min max

TIO ?

123...

1.000

1.000 6000

)

Measure

> 2s

Go back

> 2s

This function allows you to select the value of the VT-PT ratio (primary/secondary ratio of the voltage transformer being used). Example: if the primary of the connected VT (voltage transformer) is 20kV and the secondary is 100V, then the VT-PT ratio corresponds to 200 (obtained carrying out the following calculation: 20000/100). Choose the VT-PT RATIO function (1) by means of the “ ” key and confirm the selection with “S”. Then select by means of the “ ” key the desired value (2) and confirm the value with the “S” key.

The instrument displays the maximum and minimum value available for the VT-PT ratio.

MD/AVG calculation

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SYSTEM

T RATIO

C VT-PT RATIO

MD/AVG. CALCUL.

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Confirm

Programming WM5 96

TYPE

IME

T SYNC

IPO

IXED

TEMPO

SLIDE

SINCRONISM

)

Measure

> 2s

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> 2s

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> 2s

WM5-96 Instruction Manual

his function allows the user to select the calculation method of the

T DMD/AVG value of the selected variable. To access these functions select DMD/AVG CALCUL. from the main menu by means of the “

” keys and confirm the selection with “S” (1).

TYPE (2): select the type of calculation mode to be used for the

MD/AVG calculation: FIXED or SLIDE (3). Select the desired type (3)

D by means of the “ ” keys and confirm with “S”.

IME(4): select the time interval for the DMD/AVG calculation (5, 10,

15, 20, 30, 60 minutes). Select the desired time (5) by means of the “ ” keys and confirm with “S”.

Where: Pmax is the maximum power, Pc is the contractual power, t1 is the selected time period for the calculation of the A value.

VG/DMD

FIXED SELECTION: if, for example, a time interval of 15 minutes has been selected, the instrument will calculate the AVD/DMD value of the measured variable and updates its value every 15 minutes.

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TYPE

TIME

SYNC

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> 2s

SLIDING SELECTION: if for example a time interval of 15 minutes has

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TIPO

5 min

TEMPO

10 min

SINCRONISMO

15 min

Confirm

20 min

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been selected, the instrument calculates the AVG/DMD value and updates its value at the beginning after the first 15 values and then after every minute, thus generating a window whose width is of 15

> 2s

minutes and that moves forward every minute.

SYNCHRONISM (6): select the synchronization mode, that is the

method that controls the calculation method of the average/demand according to the selected time. Select the type of desired synchronism

(7) by means of the “ ” keys and confirm with “S”.

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TYPE TIME

SYNC

Go back

OFF (7)

instrument on.

CLOCK (7): the synchronization starts as soon as the first selected

> 2s

integration time multiple expir time at 10 minutes and the current time at 10:25, the synchronization

: the synchronization calculation starts when you switch the

es. Example: by setting the integration

will start at 10:30.

CONTACT (7): the synchronization starts at the status modification

(from ON to OFF or from OFF to ON) of one of the digital inputs pro-

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TIPO

OFF

TEMPO

CLOCK

SINCRONISMO

ACT

CONT

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grammed such as SYNCHRONIZATION or TARIFF (see “DIGITAL INPUTS”). A consequent status change produces the reset and then

> 2s

again the starting up of the synchr

onization.

Confir

WM5-96 Instruction Manual

nstalled power

Programming WM5 96

This menu allows you to set a power value (installed power) that, in the measuring phase, will represent 100% of the graph indicator “W%” present in the “P00” page (in the fourth quadrant).

> 2s

Select INS. POWER ? (1) by means of the “ ” keys and confirm with the “S” key. Then enter the full scale value by means of the “

)

Measure

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CT RATIO

T-PT RATIO

V DMD/AVG CALCUL.

NSTALLED POWER

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” keys and confirm with “S”.

The instrument shows the maximum and minimum limit of the value available for the full scale of the W% graph.

)

Go back

> 2s

********** MMAAIINN MMEENNUU *********

T RATIO

T-PT RATIO

NS. POWER ?

MD/AVG CALCUL.

INSTALLED POWER

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Confirm

9999MW

123...

000 W

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