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Carlo Gavazzi
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WM4-96
User Manual
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Carlo Gavazzi WM4-96 User Manual

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Page 1
WM4-96: Modular Universal Utility
Meter and Power Analyzer
Harmonic analysis; Energy meters; Load profile; Plug and play module system; SMS reception and trans­mission. 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
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CARLO GAVAZZI
Automation Components
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Index
Index
4
4
WM4-96 Instruction manual: INDEX
CARLO GAVAZZI WM4-96, 32-bit µ-processor based modular universal utili­ty 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
Page 3
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3
Index
Front panel
2
7
4
❏ 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
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4
Index
The connecting instrument
2
6
❏ 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
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5
To begin with
How to scroll the pages
3
Index
9
7
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 sub­ject 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 recom­mend 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 differ­ent 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).
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The menu, being without measuring input module, is modified.
The menu, without measuring input mod­ule, is no more available
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6
To begin with
Page 00
587
- 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 dis­tortion 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.
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To begin with
Energy meters
5
WM4-96 philosophy
5
11
■ Front panel description
Exit from the menu and cancel the choice you have made. It allows the user to access some func­tions relating to the displayed variables.
Scroll to the
previous page
Scroll to
the next
page
Access to pro­gramming or settings’ confir­mation.
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).
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Displaying of the variables
Harmonic analysis
3
Index
10
16
■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 dis­played 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 rectan­gular 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
Page 9
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9
Displaying of the variables
Load profiles
7
Front panel
8
13
16
■ 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 dis­play: “ 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.
F
S
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S
F
F
F
F
S
F
F
F
F
S
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10
Displaying of the variables
Display of Gas Water meters
5
WM4-96 philosophy
81216
❑ 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 his­togram using the (moves from left to right) and
(moves from right to left) keys. For each harmonic the instru­ment measures the % value with reference to the funda­mental and the single harmonic angle between the “V” har­monic and the “A” harmonic of the same order.
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F
F
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 har­monic; 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 har­monic 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:
F
F
Page 11
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11
Displaying of the variables
Pass 999
9
Displaying of min/max values
8
15
16
❑ Pages relating to the energy meters ❑ Page "25" (3 without measuring input module)
Displaying of the total energy meters
key disabled.
❑ Page "26" (4 without measuring input module)
Displaying of partial energies
key is active; modification of tariff/displayed period.
By pressing the key for the first time, the range relating
to the season is highlighted. By using the and keys, it’s possible to change the season displayed in that page.
Pressing the key once again, the range relating to the
period is highlighted. Using the and keys, it’s pos- sible to change the tariff period within the displayed season.
Pressing the key for the third time, you go back to the measuring page. The changes of season and tariff period only refer to the dis­playing of the values stored in the corresponding season and period.
The changes carried out in this page do not have any influence on the method of tariff management of the instrument; they are only valid for display purposes.
F
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F
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F
F
F
This angle is displayed only if the measurements are taken in a three-phase system with neutral
Generated
Imported
0°
90°
180°
270°
Harmonics:
Page 12
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12
Displaying of the variables
Pass 1000
7
Front panel
81416
❑Page "27" (5 without measuring input module)
Display of Gas and Water meters
keys disabled. Depending on the setting, the instru­ment may display one only of the following meter combina­tions: Gas; Gas with Gas in night tariff; Gas and Water. The water and gas meters are managed by the digital inputs.
❑Page “28” (6 without measuring input module)
Displaying of instrument configuration
key disabled. Page 28 shows the configuration of
the main input (IN) and output (OUT).
F
F
Alarms
(A1-A2-A3-A4).
Diagnostic
(D1-D2-D3-D4).
Digital inputs.
Puse outputs
(P1-P2-P3-P4).
The letters and numbers between parenthesis are referred to the relevant slots, while the text on their right shows the vari­able referred to the output. With reference to the digital inputs (DIG.INP.), the ON/OFF status of each one of them is shown.
❑Displaying of load profiles
The load profiles are a simple graphic representation use­ful to highlight the trend of the load consumption (integrated power) with reference to the installed power (as per contract).
This function needs the serial module AR1041 to be installed.
The instrument calculates and displays the load profiles
Page 13
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13
Displaying of the variables
Access to the main menu
11
Displ. of partial energies
8
17
16
depending on the acquired data, dividing them into: daily, weekly and monthly graph, as simplified by the figures shown
above. Press the key: you can display the single integra­tion periods and the details relevant to the installed power
F
Wdmd of the last integration
period
Time of the last integration
Installed power
Graphic representation
of the consumptions
Load profile of the installed power divided into hour time periods
Example: the con­sumed power integrated in 15 minutes exceeds the installed power
Pressing , the instrument
will display in detail the data indi­cated by the arrow that will appear on the abscissae axis. To scroll the single data use the
keys. To exit the detailed
display mode press .
F
F
F
Daily graph:
15-minute resolution, total time: 24 hours.
Weekly graph: 2-hour resolution, total time: 7 days.
Monthly graph: 12-hour resolution, max. total time: 31 days.
F
F
Page 14
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14
Displaying of the variables
Pass 997
9
Measuring pages: 00 to 13
81616
programmed for that hour time period, the storage time of the Wdmd sample and the relevant value. The data can be
scrolled by means of the and keys and are relevant to the indication of the arrow that appears on the ascissae axis.
To go back to the normal display, press the key again.
If the instrument has not acquired enough data to cover the resolution of the graphs (day: at least 15
minutes; week: at least 2 hours; month: at least 12 hours) the latter are not displayed and the message: “NOT AVAILABLE” appears. When the data are enough for the grah­ph to be displayed, wait a few seconds for the acquired data to be processed.
❑Displaying with access to the Pass Code ❑Pass "1000": Displaying of recorded events
(Only if the RS232 + RTC module + data memory is present)
Press the key in any of the measuring page (exclud-
ed the “load profiles”) when the instrument asks for
, set the value “1000” and confirm with
; the instrument shows you the page where the events are displayed and where the instrument stores, in a chrono­logical order, the alarms that have occurred until that
moment. To go back to the variable page press the key. The
last event has always the number 1 while the number corresponding to the first event varies, depending on the number of events that have been previously stored. The fig­ure on the following page explains you the meaning of the displayed information.
F
S
S
F
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Page 15
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15
Displaying of the variables
Input programming
13
Load profile
8
19
16
To reset all the events press the key, to continue the
reset procedure press the key again: to exit from the
reset procedure press the key.
❑Pass "999": display of energy consumption storage
(Only if the RS232+RTC is present)
The RS232+RTC module allows the user to display the storage of the energy consumption of the previous two months. To enter
this function, press the key in any one of the measuring page
(excluded the “load profiles”), when the instrument asks for the
pass code , set the value “999”: the instru­ment shows you the page where the energy values are stored.
Use the and keys to display the partial values;
press the key to exit.
F
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S
F
S
S
Control type: alarm (e.g.: A2), diagnostics (e.g.: D1), maximum value (MAX), minimum value (MIN).
Only for alarms and diag­nostics: detection of the abnormal condition (ON) or return to the normal condi­tion (OFF)
Variable being
controlled.
Alarms: value of the ON alarm; Max and Min log­ging: maximum and minimum measured values.
Time of the
event.
Date of the
event.
Page 16
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16
Displaying of the variables
Inputs
11
Energy Meters pages
8
18
❑Pass "998": display of the stored dmd variables
(Only if the RS232 + RTC module is present)
The stored dmd variables can be displayed by pressing
the key in any one of the measuring page (excluded the “load profile” pages): when the instrument asks for the
, enter the value “998”: the instrument will display the values of the stored variables, the time (hours­minutes-seconds) and the date (day-month) of storage.
Use the and keys to scroll
all the values; to exit press the key. If the value has not been stored, the instrument displays
“NOT AVAILABLE VALUE”.
❑ Pass "997": Reset of the Data Memory (only if the
RS232+RTC module is available)
It’s possible to reset all the information stored in the data mem-
ory. To enter this function press the key in any one of the measuring pages (excluded the “load profile” pages), when the
instrument asks for , enter the value “997” and
confirm with , then press to confirm the reset; press not to execute the reset.
❑ Pass "996": Reset of the load profiles
It’s possible to reset all the information relating to the
load profiles. To enter this function, press the key in any one of the measuring pages (excluded the “load profile
pages”), when the instrument asks for
enter the value “996” and confirm with , then press again
to confirm the reset, press not to execute the reset.
F
SS
S
F
SS
S
F
▼▲
S
Page 17
It is very important to verify that, every time the configuration of the instrument (modules and/or associated variables, electrical systems, etc.) changes, the setting of the parameters is according to the new configuration.
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17
Programming
Digital inputs progr.
15
Pass 999
21
33
F
F
▼
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S
S
1.2.. ..2.1
MENU title
Scroll bar
Instrument’s revision
Menù
Serial number
■Access to the main menu
Press the key to access to the programming menus from the measuring and displaying phase (you cannot access the main menu if the instrument is in the displaying pages of the load profiles); when the instrument asks for the password, enter its correct value by means of the
and keys; then confirm
it by pressing the key again. If the password is correct (the default password is 0) you are allowed to access to the main menu of the programming phase. To reset your choice and go back to the measuring mode,
press .
F
S
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S
Page 18
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18
Programming
A3-C3 Inputs
13
Load profiles
172033
■Change Password
This function allows you to
choose the desired password value (from 0 to 500).
Press the key and when the new password value is required, enter the desired value by means
of the and keys; then
press the key to confirm the new value. The instrument goes back to the main menu, as shown in the fig­ure on the left. To reset your choices and go back to the main
menu press .
F
S
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S
F
F
S
S
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▲
1.2.. ..2.1
Measure
S
F
S
F
■Inputs
Depending on the hardware configuration being used, the instrument works in two different operating modes:
❑With installed analogue meas-
uring input module (AQ1018­AQ1019)
.
The instrument carries out all the measures of: instantaneous, power, THD variables and ener­gy metering. It’s also possible to select the gas and water meter­ing, as well as gas and night tar-
Page 19
with ; choose “ON” to enable the metering: the following window appears: selection between H
2
O/GAS and kWh- (gen-
erated Kwh) “ENERGY METER”; choose the desired type of
counter by means of and , confirm with (if you choose the kWh- metering, also the A2 input for counting the
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Programming
List of digital inputs
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Access to the main menu
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23
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iff gas metering: to do this the AQ1042 digital inputs + aux mod­ule must be installed in slot A. Choose the “INPUTS” function by
means of the and keys
and press to enter in the sub­menu. Choose the “MEASURE”
function by means of the and
keys; press to select the
relevant operating mode and enter the relevant sub-menu where you can select the digital inputs (if pres­ent in slot A) connected to the gas, water and energy meters. 1- Choose the A1 INPUT (gas or
kWh- meter) by means of the
and keys (the description of the selected input function and the weight of the connected pulse can be seen under the scroll window);
press to confirm. 2- Once the ON/OFF window is displayed, choose “OFF” by
means of the and keys to disable the metering and confirm
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Programming
Tariffs remote control
15
Display of consumed energy
172233
kvarh- will be enabled). 3- Once the desired type of meter is confirmed, the instru­ment asks for the number of pulses to be associated to the unit increase (e.g. if you type the value 10 you will need 10 input pulses in order to make the instrument display 1 m
3
). 4- A2 INPUT, enabling function of the water metering or of the kvarh- meter (generated kvarh); ENERGY METER” fol­low the operations described on paragraphs 1 and 2. If the H2O/GAS meter is selected, the window for the selection of the night gas tariff appears: GAS TARIFF or WATER METER for the water meter. Choose the desired option by means
of the and keys and confirm with . By choos­ing “WATER METER” or kvarh- meter (when the kvarh is chosen, automatically also the A1 input is enabled to count kWh-) the instrument shows the box where the increase pulses to be associated with the unit increase are to be entered (e.g. if you enter the value 10 you will need 10 input
pulses for the instrument to display 1m
3
). Press to go
back to the previous menus.
- A3 and C3 INPUTS: see “Enabling the remote control of the tariffs” on page 22.
- C1 and C2 INPUTS: not available.
Inputs A1 and A2 must both count either energies
or m3(GAS/H2O); if for example you choose A1 as Wh- meter and then you select A2 as H2O
meter, WM4 automatically changes the A1 input
as GAS meter.
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❑ Analogue measuring input
module NOT installed (AQ1018 - AQ1019)
.
The instrument carries out only the following measures: W, var, W
dmd
, var
dmd
, PF
dmd
using only
the pulses acquired through the digital inputs. The “VA” power is always 0. It’s possible to count and display the measurements of: water and gas, gas and gas night tariff, or Wh- and varh meter. In order to make the instrument carry out the above mentioned meas­ures, it’s necessary that both digi- tal input modules are mounted (AQ1042+AQ1038 or 2x AQ1042). Choose the INPUT function by
pressing the and keys,
then press to enter the rele­vant sub-menu. Choose the PULSE function by means of the
and keys and press the key to select the operating
mode and enter the relevant sub­menu where you can select the digital inputs associated with the
gas / water and kWh/kvarh meters. You can also enable the two digital inputs relevant to the remote selection of the tar­iffs. To select the water / gas metering or Wh- varh- meter­ing, follow steps 1 to 4 on page 19 and 20. Please note the description of the selected input function and the weight of the associated pulse under the relevant window. To enable
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Programming
System
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Digital input prog.
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Programming
Tariff table
17
Entering the main menu
172433
the counting of the “W” and “var” energies proceed as fol­lows:
5- Choose the C1 INPUT function by the and keys (see the description of the selected input function and the weight of the associated pulse under the scrolling window);
press to confirm. 6- Once the ON/OFF window appears, choose “OFF” by the
and keys to disable the counting of kWh’s and con-
firm with ; choose “ON” to enable the counting of kWh’s
and confirm with . 7- The instrument asks the user to enter the number of puls­es to be associated to the unit increase (pulse/ kWh, ex.: entering the value 10 the instrument will need 10 input puls­es to display 1kWh on the counter). 8- For the C2 INPUT, enabling function of the “kvarh” count- ing, follow steps 5 to 7. To go back to the previous menus,
press .
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❑Enabling the tariffs
remote control
This function enables the control of the tariff phases of the energy counters by means of external pulses and not by means of the instrument’s clock. From the PULSE sub-menu select and enable the “A3 INPUT” and “C3 INPUT”. Select them one at a time by means of
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the keys, confirm with . When the ON/OFF win-
dow appears select ON by means of the keys to enable the INPUT or OFF to disable it, then confirm your
choice by means of the key. Press to go back to the previous menus.
WM4-96 is able to recognize the presence of the analogue measuring input module (AQ1018­AQ1019). If you try to enter the MEASURING menu
when the measuring input module is not installed, the instrument displays NOT AVAILABLE. There’s a lower quantity of display pages in the configuration without meas­uring inputs, since there’s a lower number of data that can be measured.
On the contrary the digital inputs are not rec­ognized automatically by the instrument and it is there­fore important to program them correctly: ON if they are to be used and OFF if they are not to be used, so as to avoid any wrong measures.
If WM4-96 is used in the PULSE operating mode, it needs a full scale to be set: there­fore if the measuring module is not installed, the value to be set is in the SYSTEM menu (see SYSTEM on page 24). To sum up, here is the list of parameters to be set depending on the requirements (
#
Not available when analogue measuring
input module is installed (AQ1018 or AQ1019):
A1 INPUT (channel 1 slot A): enables gas counter. A2 INPUT (channel 2 slot A): enables water counter or
gas night tariff.
A3 INPUT (channel 3 slot A): enables management of
energy meters time periods
C1 INPUT
#
(channel 1 slot C): enables kWh meter.
C2 INPUT
#
(channel 2 slot C): enables kvarh meter.
C3 INPUT (channel 3 slot C): enables management of
energy meters time periods.
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Programming
Display page
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Digital input prog.
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Programming
VT-CT ratio
19
Digital inputs programming
172633
Example 1: measure of all the instantaneous variables, energies and gas + night gas. Proceed as follows: install the analogue measuring module (AQ1018 or AQ1019), select MEASURE in the INPUTS menu and enable the AQ1042 dig­ital inputs module (that must be installed) by setting A1 ON, A2 ON (GAS TARIFF), A3 OFF.
Example 2: measure of energies, powers dmd and PF’s dmd, as well as remote management of the tariff periods from the digital inputs. The instrument is to be equipped with 2 digi­tal input modules (AQ1042 slot A and AQ1038 slot C or 2x AQ1042 slot A and C), while the analogue measuring module is not necessary; to enable the 2 modules, set the instrument as follows: A1 OFF, A2 OFF, A3 ON, C1 ON, C2 ON, C3 ON. Then, set the full scale in the SYSTEM menu according to your plant.
Every modification to the measuring mode will reset the meters.
TIME PERIODS SELECTION MODE
CHANNEL 3 SLOT ACHANNEL 3 SLOT CACTION
Open Open Tariff 4 Open Close 2 Winter / 3 Summer * Close Open 1 Winter / 2 Summer**
Close Close Tariff 4 CHANNEL 2 SLOT A (if A2 enabled as GAS): Close = day-time tariff GAS is selected. Open = night-tariff GAS is selected.
* WM4-96 associates to the meter tariff 2 in Winter and
tariff 3 in Summer.
** WM4-96 associates to the meter tariff 1 in Winter and
tariff 2 in Summer. When the tariff mode managed by the digital inputs (A3 and C3 enabled “ON”) is selected, the user can no longer select the tariffs in the energy meters menus, but only the seasons.
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Programming
Events selection
23
List of digital inputs
17
29
33
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Any modification to the system settings will make the MIN/MAX values, the events and the energy meters reset.
■System
This function allows the user to select the type of
electrical system by choosing among single phase (1­phase), balanced three-phase plus neutral (3+N phases bal.), unbal­anced three-phase plus neutral (3+N phases unbal.), three phase bal­anced (3 phases bal) and three­phase unbalanced (3 phases unbal). Choose the SYSTEM function by
means of the and keys,
press to confirm, then select the
desired system by means of the
and keys and confirm with . To reset your choice and go back to
the main menu, press the key.
If the measuring input
module is not present, the
menu is to be modified by displaying the selectable full scale powers. Select the required full scale
power by means of the and
keys and confirm with . To
reset your choice and go back to the
main menu, press the key.
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■VT-PT ratio
This function allows the user to select the multiplier
value of the VT. Example: if the primary of the VT (voltage transformer) being connected is 20kV and the secondary is 100V, the VT ratio will be 200 (given by 20000/100). If there is no VT, the ratio will be “1.0”.
■CT ratio
This function allows you to select the value of the CT
ratio. Example: if the pri­mary of the CT (current trans­former) being connected is 300A and the secondary is 5A, the CT ratio corresponds to 60 (obtained from the calculation: 300/5). Choose the function CT RATIO by
means of the and keys;
press to confirm then select the desired value by means of the
and keys and confirm
with . To reset your choice and go back to the main menu, press
.
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Programming
Min/Max values
21
Digital inputs prog.
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If the CT ratio is modified, then all the MIN/MAX val­ues and the partial energy meters are reset.
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Programming
Average calculation
25
System
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Choose the function VT-PT RATIO
by means of and ; to con-
firm press ; then select the
desired value by the and
keys and confirm with . To reset your choice and go back to
the main menu, press .
■ Display page
This function allows you to select the variables to be displayed on page 00.
Choose the DISPLAY PAGE func-
tion by means of the and
keys; press to confirm, then select the desired section of the
display using the and
keys; Press ; then select the variable to be displayed by means
of the and keys and con-
firm it with . To reset your choices and go back to the main
menu press .
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Changing the VT ratio, all the MIN/MAX values, all events and partial energy meters are reset.
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■MIN MAX VALUES
This function allows the user
to associate some variables
to the automatic recording
of maximum values (from MAX1 to MAX12) and minimum values (from MIN1 to MIN8). To use this function, proceed as follows: select the MIN MAX VALUES function from the
main menu using the and
keys and confirm it with . A new window will appear showing you the list of the available memory locations: scroll the locations using
the and keys, starting from MAX1 for the maximum val­ues and MIN1 for the minimm val-
ues. Press to open the sec­ondary menu with the list of the available variables to be selected. Scroll the list of the variables using
the and keys; once you have selected the desired variable,
confirm it using . To reset your choices and go back to the main
menu, press .
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Programming
Data Logging
23
List of digital inputs
173033
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Once you have confirmed the selection, the following message will appear: “YOUR CHOICE WILL RESET THE VARIABLE, WILL YOU CONTINUE? YES/NO”. Note: to enable the MIN/MAX recording function, read carefully the following paragraph, SELECTING THE
EVENTS.
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Programming
Avg calculation, graphs
27
Display page
17
33
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■EVENTS SELEC.
This function allows the user to enable the events for data logging:
• MAX (logging of up to 12 differ- ent variables MAX1 to MAX12), see also: MIN MAX VALUES;
• MIN (logging of up to 8 different vari- ables MIN1 to MIN8), see also MIN MAX VALUES;
•
D "diagnostics" (logging of up to 4 alarms: from D1 to D4), see also: DIAGNOSTIC DIG­ITAL OUTPUTS
• R "remote control" (up to 4 remotely con- trollable outputs: from R1 to R4), see also: REMOTE CONTROL DIGITAL OUTPUTS;
•
A "alarms" (logging of up to 4 alarms: from A1 to A4), see also: ALARM DIGITAL OUTPUTS; To use this function, select “EVENTS SELEC.” from the main menu using the
and keys and confirm it pressing
. Use the and keys to select
where you want to enable the event (ON) or
disable it (OFF). The function of the ON­OFF-ON key is cyclical. To go back to the
main menu press .
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When the measuring input module (AQ1018­AQ1019) is not present, the user can select only up to 8 events (even though the menu remains unchanged): from MAX 1 to MAX 4 and from MIN 1
to MIN 4. To select them, proceed as described above.
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Programming
Synchronization
25
System
173233
■Data logging
This function enables the logging of the required variables in the data logging.
1) Choose the function DATA LOG-
GING by means of the and
keys, press to confirm;
2) select “DMD VARIABLES” by
means of the and keys and
confirm with ;
3) the display shows the window with the list of the available DMD variables: select the required available (ON) vari-
able by means of the and
keys and confirm with . To go
back to the main menu press .
To select the integration time
reapeat step 1; then select TIME
INTERVAL by means of the
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and keys and confirm with : the display shows the win­dow for the selection of the TIME INTERVAL.; select the value (in
minutes) with the and keys and then confirm with .
To go back to the main menu press .
During the measurement the instrument takes a sam­ple of the selected variables every 200ms approx.; When the selected time (from 1 to 60 min.) expires, the instrument will calculate the average of the sam­ples and carry out the data logging. The
historical
data
will therefore be guaranteed to be highly accurate.
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Programming
Dual-time prog. meter
29
Events selec.
17
35
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■DMD/AVG calcul.
This function allows you to select the calculation
method of W-VA-PF. To enter these functions, select “DMD/AVG CALCUL” from the
main menu using the and keys and confirm the selection with
. You can thus enter the DMD/AVG CALCUL. method: choose between the FIXED or
FLOAT method using the and
keys and confirm your choice
with . The display will show the window for setting the time in min-
utes, use the and keys to set the desired value, confirm with
. To reset your choices and go
back to the main menu press .
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The FLOAT selection is not available without the measuring input module.
FIXED selection: if for example you select the value 15 minutes, the instrument calculates the average and updates the value every 15 minutes. FLOAT selection: if for example you select the value
“15 minutes”, the instrument calculates the average and
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Programming
Energy meters
27
Display page
173233
updates its value at first after 15 minutes and afterwards every minute generating a window whose width corre­sponds to “15 minutes” and shifts by units of 1 minute. On the following page you can see the diagram that shows the two operating methods.
SYNCHRONIZATION OF THE FIXED OR FLOAT CALCULATION
The synchronization of the FIXED or FLOAT calculation can be carried out in three different ways:
• without DIGITAL INPUTS and RS232+RTC modules: the reset and the start of the synchronization is carried out when the instrument is switched on;
• with the DIGITAL INPUTS module installed: the synchronization begins when the A3 and C3 digital input modules change state (from ON to OFF or from OFF to ON). Any following change of state will make the syn­chronization reset and start all over again;
• with the RS232+RTC module: the synchronization begins at the exact hour that follows the “switch on” of the instru­ment (E.g.: if WM4-96 is switched on at 10:25, the syn­chronization will begin at 11:00).
In case both modules are installed (that is digital inputs and RS232+RTC) the priority will be given to the digital inputs.
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Programming
Holidays period
31
DMD/AVG calculation
17
37
FIXED AVERAGE CALCULATION
FLOAT AVERAGE CALCULATION
Where: Pmax is the maximum measured power,
Pc is the contractual power, t1 is the selected average period
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Counters Management
Tariffs examples
29
Events Selection
36
43
■ Access to the Counters
menu
This function allows you to choose the type of management of the energy meters. Select “COUNTERS” from the main
menu by means of the and
keys; confirm with to
enter the specific sub-menu.
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❑ SINGLE TARIFF Counters
Management
This function allows you to choose the energy meters according to a single tariff which is the same for the whole year. Select SINGLE TARIFF
by means of the and keys
and confirm your choice with .
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When you change the type of management, and after the choice is confirmed, the instrument resets the meters and a buzzer sounds.
❑DUAL TARIFF counters management: Whole year
This selection manages the energy meters with two dif-
ferent tariffs per day and two periods per year. Select DUAL
TARIFF from the COUNTERS menu by means of the
and keys and confirm your choice with . Select
WHOLE YEAR and confirm with to enter the relevant menu; now you can enter the programming of the daily peri­od as follows:
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Counters Management
Multitariff counters
33
Graphs, AVG calcul.
34
39
43
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1-press : the first box (trf=tar- iff) is highlighted;
2-press again: the TARIFF box will appear on the lower part of the display; now you can choose the tariff (from 1 to 4), e.g.: “1” by means
of the and keys;
3-press the key once more, the “end tariff” hour is highlighted;
4-press the key once more; the HOURS box will appear on the lower part of the display; now you can choose the hours - e.g. 8 - by
means of the and keys.
5-press the key again; the “end tariff” minutes will be highlighted;
6-press the key again: the MIN- UTES box will appear on the lower part of the display; now you can set the desired minutes - e.g. 10 - by
means of the and keys. 7-after the confirmation of the last
setting, press and you are back to the selection of the first “trf”
parameter you have highlighted. The “starting hour” of the following line becomes equal to the “end hour” you have just selected. Only when the “trf” parameter is high­lighted, you can scroll the parame­ters and modify them: use the
key to access to the parame-
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Proceed with the same principle for the following rows. To exit any item
always use .
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Counters Management
Tariffs examples
29
Events selection
36
43
ters; use the key to move from the left to the right and the
key to move from the right to the left.
8- press to exit the programming of the parameters of the relevant row (no boxes are to be highlighted);
9-press and to select one of the other programming lines; the pointer on the right shows the line where the user
can modify the parameters (steps from 1 to 7); a) the day can be divided into up to 8 different peri­ods connected to up to 4 different tariffs according to the following working principle:
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Imported active energy Exported active energy Imported reactive energy Exported reactive energy
The measured energy (partial energy) is placed in TARIFF 1 when the time period is from midnight to 8:00, in TARIFF 2 when the time period is from 8:00 a.m. to 8:00 p.m. and again in TAR­IFF1 when the time period is from 08:00 p.m. to midnight. The total measured energy is the result of the sum of all the partial measures as shown in the figure below:
b) the starting point of the first time period is always 24:00 (midnight) and cannot be changed; c) the starting point of the following period is always the end
24
2
22
20
18
16
14
trf1
4
6
8
10
12
+ kWh
- kWh + kvarh
- kvarh
1
1
+ kWh
trf1
24
2
22
20
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16
14
4
6
8
10
12
trf2
trf1
- kWh + kvarh
- kvarh
+ kWh
- kWh + kvarh
- kvarh
2
+ kWh
- kWh + kvarh
- kvarh
T
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Counters Management
Multi-time Energy Counters
33
Avg calculation, graphs
34
39
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hour of the previous time period; d) the daily loop is closed by setting 24:00 as last hour of the last time period (to follow this procedure see step 4 on page
35), confirm the setting by pressing and to go back to the TARIFF SELECTION menu (“COUNTERS” submenu on page 34).
NOTE: selecting the A3 or C3 digital inputs as ON,
the DUAL TARIFF is no more available.
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❑Programming the
HOLIDAY period
To program the HOLIDAY period, proceed in the following way: 10-Choose HOLIDAY in the DUAL TARIFF menu by means of
the and keys and con-
firm with : the HOLIDAY win­dow will be displayed;
11-press : the month corre- sponding to the start date will be highlighted;
12-press : the box where the month can be set is enabled;
13-use the and key to select the desired month (from 1 to 12);
14-press the key to confirm the selection and move to the next parameter: day setting;
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15-press the key again to open the box where the day is to be set,
16-use the and keys to select the desired day (from 1 to 31 depending on the previously selected month);
17-press the key to confirm the selection and move to th next parameter. To program the “end date” follow the same procedure described above from step 11 to step 16. After confirming
the “end” day by means of the key, the HOLIDAY Box is highlighted to indicate the conclusion of the HOLIDAY peri-
od programming cycle. You can
also use the (moves from
right to left) and (moves from left to right) keys to scroll along the available parameters. It’s possible to choose the tariff to be associated to the HOLIDAY period according to the following procedure: starting from the box on the previous page, step 10,
press the key again: the instrument will display the box
shown on the left. Press : the
box relevant to the “trf” value is highlighted; press the key again: the instrument will display on the lower section the box where the tariff is to be set. Select the desired tariff
(from 1 to 4) by means of the and keys and confirm
it with . To reset your choices and/or exit the menus,
use the key.
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Counters Management
Trf Holiday period
31
Average calculation
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Counters Management
Installed power
35
Dual tariff prog.
34
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❑MULTI TARIFF
This function allows the management of the counters according to many periods per day and three periods per year: WINTER, SUMMER and HOLIDAY.
To program the parameters relat­ing to the winter season, simply follow the same procedure (holi­days) described on page 37 from Step 11 to Step 17. The parame­ters of the SUMMER season are automatically set by the instru­ment as a difference between the previous two periods of the Year. To enable the setting of the
daily time periods, press when the WINTER or SUMMER seasons are highlighted. The fol­lowing settings are the same as the ones described from Step 1 to Step 9 on page 35 and 36. To reset your choices and/or go back to the previous menus, use
the key. To program the
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HOLIDAY period, follow the procedure on page 37 from step 11 to step 17.
The WINTER and SUMMER periods are conven­tional seasons mainly used to manage in the best way the different energy costs during the year.
The reminds at steps a), b), c), d) on page 36 and 37 are also valid for the MULTI TARIFF function. The next page shows a few examples of programming the various time periods.
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40
Counters Management
Tariffs examples
33
Avg calculation, graphs
344043
DUAL TARIFF management
WHOLE YEAR
As you can see on the figure above, there’s a daily division into three periods with two different tariffs.
MULTI TARIFF management
On the picture above you can see four different tariffs which are coupled to seven different periods of the day.
trf1
24
2
22
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18
16
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12
trf1
4
6
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trf2
trf
1 OO:OO 2 O8:OO 1 2O:OO
TARIFF
WHOLE YEAR
start
O8:OO 2O:OO OO:OO
end
1
WINTER
trf
trf1
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22
trf4
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trf3
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trf2 trf3
start OO:OO
trf2
1 2 O6:OO 3 O8:OO
TARIFF
trf
2 3 16:OO 4 18:OO 1 21:OO
TARIFF
start 1O:OO
trf1
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4
6
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WINTER
end
O6:OO O8:OO 1O:OO
end
16:OO 18:OO 21:OO OO:OO
1
2
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Counters Management
Counters reset
37
HOLIDAY periods
34
43
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❑Installed power
This function allows the user to set the maximum installed tar­iff power (as per contract). The set power is associated to the desired tariff (t1-t2-t3-t4) and it’s displayed in the load profile graph (see also load profiles on page 12). Select INSTALLED POWER from
the main menu by means of
and and confirm it with to enter the relevant submenu. Then, select the required tariff (t1-t2-t3-t4) by means of the
and keys and confirm
with . The full scale selection window appears: select the desired full scale value by means
of the and keys and
confirm with ; then, enter the desired power value by means of
the and keys and con-
firm with the key.
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To reset your choices and go back
to the main menu press . MINIMUM INSTALLED POWER: (MIN. INS. POWER) enables the user to set the beginning of the scale of the load profiles graphs thus optimizing its resolution. To set the value proceed as per “installed power”.
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42
Counters Management
Counters reset
35
Dual time counters progr.
344243
❑ Reset of the Energy
Counters
The “RESET” menu allows
you to reset the energy counters.
Press to enter the menu and
then use the and keys to select the desired type of reset.
Press to enter the menu, then the instrument displays the following message:
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PAY ATTENTION, ALL THE METERS WILL BE RESET!! WILL YOU CONTINUE?
To end the RESET procedure, press ; to go back to the
TARIFF SELECTION menu (counters sub-menu), press .
The reset procedure allows the user to choose among the following different choices:
ALL: reset of all the energy meters (imported/exported energies); TOTAL + : reset of the imported energy counters (+kWh, +kvarh); TOTAL - : reset of the exported energy counters (-kWh, -kvarh); PARTIAL + : reset of the partial imported energy counters (+kWh, +kvarh); PARTIAL- : reset of the partial exported energy counters (-kWh, -kvarh).
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Counters Management
Digital outputs
39
Multi-time counters
34
45
43
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❑Gas Counters Reset
The GAS RESET menu allows the user to reset the gas counters. Select GAS RESET by means of
the and keys and con-
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❑Water Counter reset
The WATER RESET menu allows the user to reset the water counter. Select WATER RESET by means
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firm with . The instrument displays the following mes­sage: PAY ATTENTION, ALL THE GAS COUNTERS WILL BE RESET! WILL YOU CONTINUE?
To end the RESET procedure press ; to go back to the
TARIFF SELECTION menu (counters sub-menu), press .
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of the and keys and confirm with . The instru­ment displays the following message: PAY ATTENTION, THE WATER COUNTER WILL BE RESET!
WILL YOU CONTINUE? If you press you end the
RESET procedure, if you press you go back to the tar­iff selection menu (counters sub-menu).
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44
Outputs / Other settings
Pulse output
39
Multitariff counter
46
55
■ Harmonics analysis
This function enables the display
of the windows relating to the harmonics analysis.
Press to enter the
HARMONICS menu: then, use
the and keys to select the phase where you want the harmonic analysis to be enabled.
The key allows the user to
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enable (ON) or disable (OFF) the displaying (the function is cyclical: ON-OFF-ON). To go back to the main menu, press
.
F
■Clock setting
This function enables the user to set the data relating to date and time. Select CLOCK from the main menu by means of
the and keys; then press
to enter the menu. Choose
the desired function by means of
the and keys; Enter the
desired sub-menu with . Then set the desired value by
means of the and keys
and confirm the value with . To reset the choices and go back
to the main menu, press .
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Outputs / Other settings
Serial output
43
Counters reset
44
49
55
The EURO/USA function allows the user to display the date and time according to the EUROPEAN (EURO, date: day/month/year; time: 24 hours) or AMERICAN (USA, date: month/day/year; time: 12 hours / AM and PM) format.
■ Digital Outputs
This function enables the user to connect the type of digi­tal output to the slot at the beginning. The instrument indi­cates if the module is not in the slot with the message “NOT AVAILABLE”; whereas if the module is in the slot, the instru­ment automatically goes to the digital output menu, where the user can set four different types of output: PULSE, ALARM, DIAG­NOSTIC, REMOTE CONTR. To enter these functions, choose DIG­ITAL OUTPUT from the main menu
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using the and keys, then confirm with . The instrument shows a window where the various slots (OUT C0, OUT C1, etc.) and output channels (1, 2, etc.) are
shown. Select the desired slot using the and keys
and confirm with to enter the output function menu (if the module is not in the slot, the instrument displays NOT AVAILABLE). To reset the choices and go back to the main
menu, press .
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46
Outputs / Other settings
Diagnostic
41
Installed power
444855
The meaning of the symbols on the display is the following: OUT C0 (1): digital output SLOT C0, channel 1
OUT C1 (2): digital output SLOT C1, channel 2 OUT D0 (3): digital output SLOT D0, channel 3 OUT D1 (4): digital output SLOT D1, channel 4
❑ Pulse output
This function allows the user to set the parameters of the pulse output. The output can be connected to a specific energy and this energy can be connect­ed to the desired tariff. The measured energy is re-transmit­ted by means of the pulse output (the pulses/energy ratio of which
is programmable). Use and
to select PULSE from the list
of available outputs; then con-
firm with and choose from the submenu ENERGY TYPE the energy to be retransmitted using
and : consumed active energy (kWh +), generated active energy (kWh -), consumed reac­tive energy (kvarh +), generated
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1.2.. ..2.1
reactive energy (kvarh -), press the key to open the menu of energy/pulse output management. There are five possible selections: TOTAL, output connected to the total energy meter; TARIFF, output connected to the desired tariff
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Outputs / Other settings
GSM
45
Digital outputs
44
51
55
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type. Confirm with and go back to the digital output menu. To reset the choices and go back to the main menu,
press . The multiplyer of the measuring unit (kW, MW)
automatically changes according to the CT or VT ratio set by the user.
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❑Alarms
This function allows the activa­tion of a static or relay output when an alarm condition is detected. Select ALARM from the DIGITAL OUTPUT menu by
means of the and keys,
then press to enter the dis­play window of all the alarm parameters:
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Select the desired variable by means of the and
keys, press to confirm and enter the sub-menus dedi­cated to the various parameters.
•Variable: variables to be coupled to the alarm: you can choose among all the available ones (see on page 59); scroll
the variables by means of the and keys and con-
firm the selection with . The availability (or non-availabil­ity) of the variable is clearly indicated on the display. When
you select Wdmd, it’s necessary to program also the reference tariff (t1-t2-t3-t4 or TOTAL) . The display will show the box on the left: select
the desired resolution by means of the and keys:
press to confirm.
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Outputs / Other settings
Modem
43
Counters reset
445055
•Type: type of alarm: up alarm (MAX); down alarm (MIN); up alarm with latch (UP L): in this case the reset of the output can only be manual; down alarm with latch (D.L.): in this case the reset of the output can only be manual; down alarm with disabling at power ON (D.DO). Choose the
desired alarm type by means of the and keys and
confirm it with .
•Set on: ON-alarm set-point. Select the value of the vari-
able by means of the and keys and confirm it with
.
•Set off: OFF-alarm set-point. Select the value of the vari-
able by means of the and keys and confirm it with
.
•Out: Normally energized alarm (NE) or normally de-ener- gized alarm (ND). Choose the desired function by means of
the and keys and confirm it with .
•Delay: delay on alarm activation. Select the desired delay
value in seconds by means of the and keys and
confirm it with .
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❑Diagnostic
In a 3-phase unbalanced-load system, this function controls the
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presence of the neutral connection. If the connection to the neutral is not detected, the instrument activates an alarm.
Select “DIAGNOSTIC” by means of the and keys,
then press to confirm it. To reset your choice and go
back to the main menu, press .
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Outputs / Other settings
SMS table
47
Alarms
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53
55
❑Remote control
This function enables the control of the digital outputs by means of
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the RS485/RS232 communication port instead of using the instrument’s alarm. The outputs can be activated by a PC or PLC by sending special commands. Select the REMOTE
CONTR. function by means of the and keys and
confirm pressing the key: the instrument will go back to the DIGITAL OUTPUT menu. To reset your choice and go
back to the main menu, press .
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■Serial output
This function enables the user to set the parameters of the serial output. Choose “SERIAL OUT­PUT” from the main menu by
means of the and keys
and confirm with . Then, select the type of serial output to be used.
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❑RS 232
Select RS232 by means of the
and keys and confirm
with . You enter the baud­rate selection window. Use the
and keys to select the
required baud rate value and
confirm with .
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Outputs / Other settings
How to use SMS
45
Digital outputs
445255
❑Modem
The instrument communi­cates with a remote PC by an analogue modem. Select MODEM from the RS232
sub-menu by means of the
and keys and confirm with
. The window with the modem settings appears: 1- PHONE NUMBER: select it
using the and keys and
confirm it with . Then, select the required quantity of pre-set
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phone numbers to be managed (from 1 to 5) by the and
keys and confirm it with .
2- PASSWORD: not available. 3- ALARMS: enables the user to prepare an alarm message
and send it to a remote PC, when an alarm changes status (activation or deactivation) among the selected ones. Select
ALARMS by means of the and keys and confirm it
with . The window with the available alarms appears: select the alarm that is to be activated (ON) or deactivated
(OFF) by means of the and keys and con-
firm it with . Selecting the modem function, the
management of the analogue modem is enabled as “passive” mode (WM4 answers to a request from the remote PC) or as “active” mode (WM4 signals the change of status of one of the alarms to the remote PC). To enable the “active” mode, it’s necessary to activate the alarms to be transmitted and set how many phone numbers are to be
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Outputs / Other settings
Language
49
Serial output
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managed for each call. The subsequent calls are managed by priority: if the first phone number is engaged, the instru­ment calls the second and so on; when a phone number answers the call, then the alarm message is forwarded and the calls are finished. The phone numbers to be dialled and the messages coupled to the type of alarm message are stored in the flash memory of the RTC+Data Memory mod­ule (AR1041) of WM4 by means of the WM4SOFT pro­gramme (see Technical characteristics on page 80).
❑GSM
The instrument sends and receives short text messages (SMS) to/from a mobile phone by GSM modem. Select “GSM” from the RS232 menu by means
of the and keys and
confirm with : the GSM set­ting window is displayed: 1- PHONE NUMBER: select the
number by means of the and
keys and confirm with . Then select the quantity of pre-set phone numbers to be managed,
from 1 to 5, by means of the and
keys and confirm with . 2- PASSWORD: it’s a 3-dgt numeric address (0 to 255) which
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is useful, in a network of instruments, to identify the WM4-96 from which the message is sent or to which the SMS are to
be sent. Select PASSWORD by means of the and
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Outputs / Other settings
Digital Filter
47
Alarm
445455
keys and confirm it by . Then, select the desired numeric
code by means of the and keys and confirm with . 3- ALARMS: it enables the transmission of SMS alarm mes­sages to GSM mobile phones when one of the selected alarms changes status (activation or deactivation). Select ALARMS by
means of the and keys and confirm with : The window with the available alarms is shown on the display; select the alarm that is to be activated (ON) or deactivated (OFF)
by means of the and keys and confirm with .
When you select “GSM” you enable the transmis­sion and reception of short text messages. The WM4 is to be connected to the previously configured GSM modem. The phone numbers to be called for the
transmission of the SMS (maximum 5) and the mes­sages coupled to the type of alarm notification (maximum 8 messages of 60 characters) are stored in the flash memory of the RTC + Data memory module of WM4 by means of the WM4SOFT programme. The user must enable the alarms to be notified (in the WM4) and the phone numbers to which the messages are to be sent (all numbers receive the messages).
❑How to use the SMS
Once the instrument has been enabled to send and receive messages, you can ask for the instantaneous variables, the last available variables of the data logging, the energy meters and the status of the alarms. In the next page, you find a table that identifies the codes to be dialled on the mobile phone in order to receive the required information. Generic text to be sent for the request to the instrument:
“WM4. [instrument’s password]. [information to be request­ed]” confirm the message and send it (according to the
instructions of the mobile phone).
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Outputs / Other settings
What is ASY
51
GSM
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REQUIRED REQUEST REPLY
INFORMATION CODE TEXT
VL1, VL2, VL3, V
L-NΣ
WM4.xxx.VN WM4.xxx:[info]
V
L1-2
, V
L2-3
, V
L3-1
,
V
LΣ
WM4.xxx.VL WM4.xxx:[info]
AL1, AL2, AL3, A
Σ
WM4.xxx.A WM4.xxx:[info]
WL1, WL2, WL3, W
Σ
WM4.xxx.W WM4.xxx:[info]
VA
L1
,
VAL2, VAL3, VA
Σ
WM4.xxx.VA WM4.xxx:[info]
varL1, varL2, varL3, var
Σ
WM4.xxx.VAR WM4.xxx:[info]
PFL1, PFL2, PFL3, PF
Σ
WMA.xxx.PF WM4.xxx:[info]
W
dmd
, VA
dmd
, var
dmd
, PF
avg
WM4.xxx.DMD WM4.xxx:[info]
Log1, Log2, Log3, Log4, WM4.xxx.LOG WM4.xxx:[info] Log5, Log6, Log7, Log8 Total kWh+, kvarh+, WM4.xxx.TOTAL WM4.xxx:[info] kWh-, kvarh­Winter kWh+, kvarh+, WM4.xxx. WM4.xxx:[info] kWh-, kvarh- WINTER Summer kWh+, kvarh+, WM4.xxx. WM4.xxx:[info] kWh-, kvarh- SUMMER Holiday kWh+, kvarh+, WM4.xxx. WM4.xxx:[info] kWh-, kvarh- HOLIDAY Alarm status WM4.xxx. WM4.xxx:[info]
ALARM
“xxx”: they represent the access password for reading the variables by means of the SMS (see PASSWORD SMS on page 51). “Log1...Log8”: they represent the last integrated variables stored in the flash memory (the variables must have been enabled and programmed to be read)
Example: you want to ask for info on the dmd variable; message of request: WM4.255.DMD; answer message: WM4.255: 12.45KWdmd, 16.04KVA dmd, 3.45kvar dmd,
0.79PF dmd
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Outputs / Other settings
Useful Info
49
Serial Outputs
545655
❑RS 485
Select SERIAL OUTPUT
from the main menu,
then select
RS485 by means of the and
keys and confirm with . Select the parameter to be set from the available sub-menus
with the and keys and
confirm it with . The config­urable parameters are:
•
ADDRESS of the instrument:
from 1 to 255.
• BAUD RATE: 1200, 2400, 4800 and 9600 bit/s.
•
PARITY: no parity, even parity and odd parity. To exit from any of the menus or
reset a choice, press .
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■Digital Filter
Select FILTER by means of the and keys
and confirm it with . Select the function to be set
from one of the submenus with the and keys and
confirm it with . There are three possible choices:
•
DISPLAY, to select the display of the 4-digit (max 9999) or
3 1/2-digit (max 1999) instantaneous variables.
• RANGE, to set the operating range of the digital filter. The value is expressed as % of the full scale.
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Outputs / Other settings
List of Variables
53
SMS table
54
59
• COEFFICIENT, to set the filtering coefficient of the instantaneous measurements. Increasing the value, also the sta­bility and the settling time of the measurements are increased. Once one of the three parameters has been selected, set the desired
value by means of the and
keys and confirm it with . To
exit the “FILTER” menu, press . For any other info, see “Useful Info” on page 56.
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1.2.. ..2.1
1.2.. ..2.1
■Language
Select LANGUAGE from the
main menu by means of the
and keys and confirm with
. Select the language to be set
from the submenu with the
and keys and confirm the
selection with . To exit from any of the menus or cancel a
selection, press .
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56
Useful Info
List of Variables
51
GSM
58
59
The variables measured by the instrument are correct if the inputs have been connected according to the right polarities (see figure below). Should the connec-
ction not be conforming to the right polarities, meas­uring and retransmission errors may occur, both due to the wrong direction of the current flowing in the primary/secondary of the ammeter transformer being connected.
■Application example of the digital filter
It’s necessary to stabilize the value of the displayed V
L-N
variable, that varies between 222V and 228V, maintaining a 4-dgt indication. The parameters of the digital filter must be set as follows:
• DISPLAY: 4 digits
• RANGE: the variable may have variations within the average
amplitude value equal to ±1.3% of the rated value of this vari­able which is obtained as follows: [(228-222) / 2 = ±3V, then ±3*100/231V= ±1.3% where 231V is the rated phase-neutral value of an input at 400V)]. The “range” parameter, that is the action range of the digital fil­ter, will be set at a value which is slightly higher than the per­centage amplitude of the fluctuation: for example 1.5%.
• COEFFICIENT: if the new value acquired by the instrument is within the action range of the filter, the new displayed value is cal­culated by summing (algebraically) to the previous value the vari­ation divided by the filtering coefficient. As a consequence, a
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Useful Info
Dimensions, Panel cut-
out
55
Language
56
61
59
higher value of this coefficient results in a higher settling time, that means a higher stability. The best result is generally obtained by setting the filtering coefficient at a value equal to at least 10 times the value of the range parameter. Considering the example above: 1.5*10=15. To enhance the stability, you may also increase the filtering coefficient (values within 1 and 255 only).
■What is ASY
The ASY variable allows you to control the symmetry of the star / delta voltages (for systems without neutrals) and star voltages (for systems with neutral). The variable is calculat­ed as follows:
where the first formula is to be applied with delta systems, while the minimum value calculated between the two is to be used for the star systems.
It’s very important, as a general rule, to plug in and extract the optional modules only when the instru­ment is switched off.
LIST OF THE DISPLAYED VARIABLE PAGES
No 1ST variable 2ND variable 3RD variable 4TH variable 0 Selectable Selectable Selectable Selectable
1 V L1 V L2 V L3 V L-N Σ 2 V L1-2 V L2-3 V L3-1 V L Σ 3 A L1 A L2 A L3 AΣ 4 W L1 W L2 W L3 W Σ
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Useful Info
Installation
53
SMS Table
566059
No 1st variable 2nd variable 3rd variable 4th variable
5 var L1 var L2 var L3 var Σ 6 VA L1 VA L2 VA L3 VA Σ 7 PF L1 PF L3 PF L4 PF Σ
8 V L1 A L1 PF L1 W L1 9 V L2 A L2 PF L2 W L2 10 V L3 A L3 PF L3 W L3
11 V Σ PF Σ var Σ W Σ 12 A Σ PF Σ Hz W Σ
13 W dmd var dmd PF avg VA dmd 14 MAX1 MAX2 MAX3 MAX4 15 MAX5 MAX6 MAX7 MAX8 16 MAX9 MAX10 MAX11 MAX12 17 MIN1 MIN2 MIN3 MIN4 18 MIN5 MIN6 MIN7 MIN8 19 Hystogram FFT V1 (THD, THDo, THDe, Single Harmonic) 20 Hystogram FFT A1 (THD, THDo, THDe, Single Harmonic) 21 Hystogram FFT V2 (THD, THDo, THDe, Single Harmonic) 22 Hystogram FFT A2 (THD, THDo, THDe, Single Harmonic) 23 Hystogram FFT V3 (THD, THDo, THDe, Single Harmonic) 24 Hystogram FFT A3 (THD, THDo, THDe, Single Harmonic) 25 kWh + TOT kWh- TOT kvarh+ TOT kvarh- TOT 26 kWh+ kWh- kvarh+ kvarh­27 m
3
GAS m3WATER or m3GAS night tariff
The configuration shown in the table above is only
valid for connections to 3-phase systems with
neutral and FFT enabled. In case of any other sys-
tem, the type and quantity of the displayed vari-
ables will vary.
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Useful Info
Optional modules table
57
What is ASY
56
63
List of the available variables:
The availability of the variables depends on the type of electrical system being selected.
■ Installation
■Preliminary operations
Before switching the instrument on, make sure that the power supply voltage corresponds to what is shown on the side label of the relevant module. Example: AP1020, Universal power supply input range: 100V...240V DC/AC (50Hz -60Hz) power consumption: 12W / 30VA 1 PHASE serial number: S/N 002700/20345
■Before mounting the modules
Each module (input, output and power supply) must be mounted in the proper slot: each module has been con-
V1LAΣ 3LAVDHTI2VDHTII3A
1LV1LWAV ∑ 3VDHTDHT 3LV2LW2LFPDHT
N-LV ∑ 3LW3LFPDHT
2-1LVW∑ FP ∑ 1ADHTgvaFP 3-2LV1LravzHDHT
1-3LV2Lrav1VDHTDHT
LV ∑ 3LravDHT
1LArav ∑ DHT 2LA1LAV2VDHTDHT 3LA2LAVDHT
1V2ADHT
ll
1VDHTll2A
l
2V3ADHT
ll
3VAΣ dmd
ll
3VdmdAV
l
1AdmdW
ll
1AYSA
l
2A
l
3A
I
Page 60
Extract the central module.
ceived to be mounted in one slot only. To know in which slot every module is to be mounted, refer to the figure on page 62. For a correct mounting of the instrument, insert the modules in the relevant slots, then, at the end, enter the central mod­ule, which can be a blind type module or an RS232 com­munication module. The central module will help fixing also the other modules in the relevant slots. To remove the mod­ules use a screwdriver as shown in the picture below:
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60
Installation
Position of the modules
55
Language
62
67
Gently depress the two fixing tabs. Directions 1-4.
Remove the central mod­ule from its slot: press your thumb towards points 2-5.
1
2
3
Any other slots that you haven’t used must be filled with the relevant blind plug modules supplied with the instrument.
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61
Installation
Connect. of optional modules
59
Preliminary operations
60
65
67
■Overall dimensions and panel cut-out
❑Mounting
Insert the instrument (holding its front) and fasten it (from the back) by fixing the two lateral brackets (1) (supplied with the instrument) to the approprite location (2), using the two screws (3) supplied with the instrument.
1
3
2
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62
Installation
Power supply modules
57
What is ASY?
606467
■Position of the slots and relevant modules
■Available modules ❑Relay digital output modules
A
B
C
D
PU
PS
IM
AO1058
Single relay
output
AO1035
Dual relay
output
Page 63
DESCRIPTION A B C D PU PS IM
RS485 Serial output ✓ RS232 Serial output + ✓
RTC+Data Memory
Single relay output ✓✓ Single open collector output ✓✓ Dual relay output ✓✓ Dual open collector output ✓✓ Four open collector output ✓ 3 digital inputs ✓ 3 digital inputs +AUX ✓✓ Power supply ✓ Inputs ✓
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63
Installation
Serial output connections
61
Dimensions, panel cut-out
60
64
67
❑Open collector digital output modules
AO1059
Single open collector output
AO1036
Dual open
collector output
AO1037
4 open
collector
output
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64
Installation
Serial output connections
59
List of the variables
606667
AQ1038
3 digital
inputs
AQ1042
3 digital inputs+
aux power supply
AR1034
RS485
Interface
AR1041
RS232 Interface + RTC +
Data memory
AP1021
18-60 VAC/DC
Power supply
AP1020
90-260 VAC/DC
Power supply
❑Digital input modules
❑Serial output modules
❑Power supply modules
Page 65
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65
Installation
Electrical connections
63
Position of optional module
s
60
69
67
Connection by means of NPN transistor. AQ1042 digital input module
Connection by means of contacts. AQ1042 digital input module.
Connection by means of contacts. AQ1038 digital input module.
Connection by means of NPN transistor. AQ1042 digital input module.
■Optional modules connection ❑ Digital inputs
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66
Installation
Electrical connections
61
Dimensions, Panel cut-
out
606867
❑Relay output
❑Open collector outputs
❑RS485 serial port
4-wire connection. Additional devices provided with RS485 (that is RS 1,2,3...N) are connected in parallel.
This diagram is valid also for the open collector modules with a lower number of outputs. The value of the load resist­ances (Rc) must be cho­sen so that the short-cir­cuit current is lower than 100mA; the VDC voltage must be lower than or equal to 30 VDC.
Page 67
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Installation
Single-phase connections
65
Digital input connections
60
71
2-wire connection. Additional devices provided with RS485 (that is RS 1, 2, 3 ...N) are connected in parallel.
The termination of the serial output is carried out only on the last instrument of the network, by means of a jumper between (Rx+) and (T). We rec­ommend you to use the 4-wire connection: by
means of the serial port the data are exchanged faster.
Page 68
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68
Electrical connections
ARON connection
63
Position of the modules
70
71
■Electrical connection diagrams ❑3/4-wire three-phase connection, balanced load
Direct connection (3-wire system)
Direct connection (3-wire system)
CT and VT connection (3-wire system)
CT and VT connection (4-wire system)
Page 69
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69
Electrical connections
Technical features
67
Serial output connection
68
73
71
❑Three-phase, 4 wires, balanced load
❑Three-phase, 4 wires, Unbalanced load
CT connection (4-wire system)
CT connection (4-wire system)
Direct connection (4-wire system)
CT and VT connection (4-wire system)
Page 70
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70
Electrical connections
Technical features
65
Optional module connec
tion
687271
CT connection (3-wire system) ARON
CT and VT connection (3-wire system) ARON
❑3/4-wire, three-phase connection, Balanced load
❑3-phase / 3-wire ARON connection, Unbalanced load
CT and VT connection (4-wire system)
CT and VT connection (4-wire system)
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71
Electrical connections
RS232
69
4-wire connection
68
75
71
Direct connection
CT and VT connection
CT connection
❑3-phase / 3-wires conn. ❑ Single-phase connection
❑Single-phase connection
3-CT and 3 VT connection (3-wire system)
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Technical features
Measurements
67
Serial output connection
74
83
■Input features
Number of analogue inputs Current: 1 (single-phase; system: 3).
4 (three-phase; system: 3)
Voltage: 1 (single-phase; system: 3).
4 (three-phase; system: 3).
■ Digital inputs
AQ1038 Number of inputs: 3 (free of voltage). Use: synchronization of W-VA dmd measurements Interfacing: GMC/GME. Counting of m3gas / water,
tariff selection.
Reading current: <8mA/ 17.5 to 25VDC.
AQ1042 Number of inputs: 3 + input power supply. Input frequency: Max 20 Hz, duty cycle 50%. Output voltage: 16V<+Aux<24VDC. Output current: Max 15mA. Contact reading current: 15mA.
Close contact resistance: Max 1kΩ. Open contact resistance: Min 100kΩ.
Insulation: 4000VRMS. Maximum number of inputs: 6 in the configuration
AQ1038+AQ1042 or 2xAQ1042
■ Accuracy
Display, RS232, RS485 In: 5A, If.s.: 6A, Vn: 240V
L-N
, Vf.s.: 300V
L-N
. Current: (AL1, AL2, AL3): ±0.5% rdg (0.2 to 1.2 In), ±5mA (0.02 to 0.2 In).
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Technical features
Software functions
71
Single phase connections
72
77
83
Voltage: range AV5: ±0.5% rdg (48 to 300V
L-N
)
range AV7: ±0.5% rdg (80 to 480V
L-N
) included the following
influences: frequency, output load power supply.
Frequency: ±0.1% rdg (40 to 440 Hz).
Active power (@ 25°C ± 5°C, R.H. ≤ 60%):
±0.5% (rdg + fs) (PF 0.5 L/C, 0.1 to 1.2 In, range AV5). ±1% rdg (PF 0.5 L/C, 0.1 to 1.2 In, range AV5).
Reactive power (@ 25°C ± 5°C, R.H. ≤ 60%):
±0.5% (rdg + fs) (PF 0.5 L/C, 0.1 to 1.2 In, range AV5). ±1% rdg (PF 0.5 L/C, 0.1 to 1.2 In, range AV5).
Apparent power (@ 25°C ± 5°C, R.H. ≤ 60%):
±0.5% (rdg + fs) (0.1 to 1.2 In, range AV5). ±1% rdg (0.1 to 1.2 In, range AV5).
Energies (@ 25°C ± 5°C, R.H. ≤ 60%):
active: class 1 according to
EN61036 and reactive: class 2 according to EN61268 Ib: 5A, Imax: 6A, 0.1Ib: 500mA.
Start-up current: 20mA, Un: 240V (AV5), 400V (AV7).
Harmonic distortion (@ 25°C ± 5°C, R.H. ≤ 60%)
1% fs (fs: 100%), phase: ±2°; Imin: 0.1Arms. Imax: 15Ap; Umin: 50V
RMS
.
Umax: 500Vp. Sampling frequency: 6400
samples/s
@ 50Hz.
■ Additional errors:
Humidity:
≤ 0.3%
rdg
, 60% to90% R.H.
Input frequency: ≤ 0.4% rdg, 62 to 400 Hz. Magnetic field: ≤ 0.5% rdg @ 400 A/m.
NOTE: all accuracies are referred to measurements carried out with the analogue input module.
Temperature drift:
≤ 200ppm/°C.
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Technical features
Digital outputs
69
Three-phase connections
727683
Sampling: 6400 samples/s @ 50Hz. Display: graphic back-lighted LCD (128x64 dots). Selectable read-out for the instantaneous variables: 4x4
digit or 4x3
1
/2digit. Total energies: 4x9 digit.
Partials: 4x6 digit. Max. and min. indication:
Max. 9999 (999999999). Min. -9999 (–999999999).
■ Measurements
Curent, voltage, power, energy, power factor, frequency, har­monic distortion (see display specs). TRMS measurement of distorted sine waves.
Coupling: direct.
Crest factor: ≤ 3, (max. 15Ap/500Vp (“AV 5” V L-N),
15Ap/800Vp (“AV7” V L-N).
■ Input impedance
AV5: 58/100 V (> 500 kΩ) - 1 AAC (≤ 0.3 VA); 58/100 V (> 500 kΩ) - 5 AAC (≤ 0.3 VA); 240 V/415 V (> 500 kΩ) -1AAC (≤ 0.3 VA); 240 V/415 V (> 500 kΩ) - 5 AAC (≤ 0.3 VA). AV7: 100/170 V (> 500 kΩ) -1 AAC (≤ 0.3 VA); 100/170 V (> 500 kΩ) - 5 AAC (≤ 0.3 VA); 400/690 V (> 500 kΩ) -1 AAC (≤ 0.3 VA); 400/690 V (> 500 kΩ) - 5 AAC (≤ 0.3 VA).
■ Frequency
40 to 440 Hz.
■ Overload
Permanent: voltage/current: AV5: 300V
L-N
/ 500V
L-L
/ 6A;
AV7: 480V
L-N
/ 830V
L-L
/ 6A
For 1s: voltage/current: AV5: 600V
L-N
/1040V
L-L
/120A;
AV7: 960V
L-N
/1660V
L-L
/120A
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Technical features
Load profile
73
Additional errors
72
79
83
■Output specifications
■ RS422/RS485 (on request)
Bidirectional multidrop (static and dynamic variables) Connections: 2 or 4 wires, max. distance 1200m, termina-
tion directly on the module.
Addresses: from 1 to 255, key-pad programmable. Protocol: RTU MODBUS/JBUS.
Data (bidirectional) dynamics (reading only): all displayable variables. Statics (reading only): all the configuration parameters, ener­gy reset, activation of digital outputs. Data format: 1 start-bit, 8 data-bit, no parity/even parity/odd parity, 1 stop bit. Baud rate: 1200, 2400, 4800 and 9600bit/s selectable. Insulation: by means of optocouplers, 4000 V
RMS
between
output and measuring input, 4000 V
RMS
between output and
power supply input.
■ RS232 (on request)
Bidirectional (static and dynamic variables) Connections: 3 wires, max. distance 15m. Data format: 1 start bit, 8 data bit, no parity, 1 bit stop. Baud rate: 2400, 4800, 9600, 38400 bit/s. Protocol: MODBUS RTU (JBUS). Other features: as per RS422/485. Communication by means of modem
Analogue modem for the remote communication of all the data measured and managed by WM4.
Recommended external communication modem: US Robotics.
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Technical features
Filters
71
Single phase connections
727883
GSM modem for the transmission of SMS messages: of data logging and energy meters. The alarms can be sent also automatically while the variables can be recalled by means of special SMS question codes (see “How to use the SMS” on page 52). GSM kit type-tested for WM4: Siemens kit (external) model “TC35 TERMINAL” included GSM module, antenna and 230 power supply.
■ Digital Outputs (on request)
To be used as alarms and/or retransmission of the energy, gas, water metering and/or outputs remotely controlled by means of the serial communication port. The outputs are completely programmable independently of the type of module being used.
■ Pulse outputs (on request)
Number of outputs: up to 4. Type: from 1 to 1000 pulses programmable for K-M-G Wh,
K-M-G varh, open collector (NPN transistor). VON1.2 VDC/ max. 100 mA, V
OFF
30 VDC max.
Outputs connectable to total and/or partial meters.
Pulse duration: 220 ms (ON), ≥ 220 ms (OFF) according to
DIN43864. Insulation: by means of optocouplers, 4000 V
RMS
between
output and measuring inputs, 4000 V
RMS
between output and power supply input. Notes: the outputs can be open collector type or relay type (for the relay output refer to the characteristics described in the “alarm outputs” section).
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Technical features
General specifications
75
RS232
72
81
83
■ Alarm outputs (on request)
Number of set-points: up to 4, independent. Alarm type: up alarm, down alarm, with or without latch,
phase asymmetry, phase loss, neutral loss. Monitoring of the variables: all the variables listed in the paragraph “List of the connectable variables”.
Set-point adjustment: 0 to 100% of the electrical scale. Hysteresis: 0 to 100% of the electrical scale. On-time delay: 0 to 255 s. Relay status: selectable: normally de-energized or normal-
ly energized Output type: relay, SPDT, AC 1-8A, 250VAC, DC 12-5A, 24VDC, AC 15-2.5A, 250VAC, DC 13-2.5A, 24VDC
Min. response time: ≤ 150 ms, filters excluded, FFT
excluded, set-point on-time delay: ”0s”. Insulation: 4000 V
RMS
output to measuring inputs, 4000
V
RMS
output to power supply input. Notes: the outputs can be either open collector type or relay type (for the relay out­put refer to the specifications described in the “alarm out­puts” section).
■Software functions
Password: numeric code of max. 3 digits; 2 protection lev­els of the programming data.
1st level: password “0”, no protection. 2nd level: password from 1 to 499, all data are protected.
Note: by entering in the programming mode by means of password, the measurement is inhibited.
Operating mode selection: direct measurements for the
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Technical features
WM4 Soft
73
Additional errors
728083
power quality analysis (LV or MV/HV connection). Indirect energy and power measurements by means of watt-hour meters (LV or MV/HV connection); Direct measurements for the instantaneous variables (LV connection) and indirect measurements for the energy variables (LV or MV/HV). It’s possible to add the management of gas and water metering to all of these working modes.
Pulse weight: water/gas meter inputs: from 1 to 10000 puls­es/m
3
, energy from 0.01 to 10000.00 pulses/kWh/kvarh/kWh­/kvar-
Transformer ratio
CT up to 30000 A; VT up to 600 kV.
■ Filters
Filter operating range: 0 to 99.9% of the input electrical scale.
Filtering coefficient: 1 to 255. Filter action: display, alarms, serial outputs (fundamental
variables: V, A, W and their derived ones).
Event logging: RS232 + RTC + data memory. Type of data: alarms and max./min. (max. 480 events)
stored with date (dd:mm:yy) and hour (hh:mm:ss) reference, data logger and load profile.
Sampling management: only for data logger and load pro­file. The sample stored within the selected time interval results from the continuous average of the measured values. The average is calculated (min. sample) with an interval within two following measurements of approx. 200ms.
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79
Technical features
Time periods
77
Software functions
72
83
83
■ Data management type
Type: FIFO. Memory size: 2Mb. Battery life: 10 years
■ Data logger function
The data are stored at time intervals from 1 to 60 min.; up to 8 instantaneous variables can be selected. Historical data storing time: 3 weeks with storing time interval of 1 min. for four variables. 90 weeks (approx 2 years): with storing time interval of 60 minutes for eight variables. Data format: date: day, month; time: hours, minutes, sec­onds, type of stored variable: variable value. Number of sampled variables available by serial port.
■ Load profile
Storage at time intervals of 5-10-15-20-30 min. of Wdmd. Historical data storing time: 30 weeks: with recording interval of 5 min.; 90 weeks: with storing interval of 15 min. Data format: Wdmd variable value, minutes, seconds, day, month.
Displaying: 4 variables per page, 1 configurable page, 30 fixed pages. Energy meters: up to 12 pages depending on the selected tariff mode. Displaying of the consumed energy up to two months preceding the current one by means of password (depending on the selected tariff mode). Water and gas meters: 1 page with two displaying modes depending on the selected one: water and gas m
3
or day-
time and night gas m3.
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Technical features
Harmonic Analysis
75
RS232
728283
Stored events: 240 pages, display by means of pass­word. Data logger: display of the data by means of pass- word with reset function of the relevant memory section.
Load profile: 3 pages, daily, weekly and monthly graphic display. Reset function of the relevant memory section by means of password. Display language: selectable; Italian, English, French, German, Spanish.
■Wm4Soft: software to transfer memory data
Main features: English language software to transfer memo­ry data and write messages to be coupled to the SMS alarms plus modem communication management. The pro­gram runs under Windows 95/98/98SE/2000/XP.
Data storing: in pre-formatted XLS files (Excel data base).
Data Transfer: manual or automatic at programmable timings.
Modem communication: phone book management (save
up to 100 numbers). Each number is associated to a modem that corresponds to the single instrument.
Data access: by means of RS232 serial port to be coupled to a GSM or ANALOGUE modem. RS485 (also multi-drop avail.).
Other functions: remote programming of WM4.
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Technical features
User’s page
79
Load profile
72
84
83
■General specifications
Operating temperature: 0 to +50°C (32 to 122°F) (R.H.< 90% non-condensing). Storage temperature: -10 to +60°C (14 to 140°F) (R.H. < 90% non-condensing). Insulation reference voltage: 300 VRMS to ground (AV5 input).
Insulation: 4000 VRMS between all inputs / outputs to ground. Dielectric strength: 4000 VRMS for 1 minute Noise rejection: CMRR 100 dB, 48 to 62 Hz. EMC: EN 50081-2, EN 50082-2.
Other standards: safety: IEC 61010-1, EN 61010-1.
Product: Energy measurements: EN61036, EN61268. Pulse output: DIN43864. Approvals: CE, UL, CSA. Connector Screw-type
max. 2.5 mm
2
wires(2x1.5mm2).
Housing Dimensions 96x96x140 mm. Material: ABS, self-extinguishing: UL 94 V-0. Protection degree: front, IP65. Weight: approx. 600 g (packing included).
■Supply specifications
AC/DC voltage: 90 to 260V (standard) 18 to 60V (on request).
Energy consumption: ≤ 30VA/12W (90 to 260V) ≤ 20VA/12W (18 to 60V).
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Technical features
User’s page
77
Software functions
728483
■Harmonic analysis
Analysis principle: FFT.
Harmonic measurement: current, up to the 50thharmonic; voltage, up to the 50thharmonic.
Type of harmonics:
THD (VL1) THD odd (VL1) THD even (VL1). The same is for the other phases: L2, L3. THD (AL1) THD odd (AL1) THD even (AL1). The same is for the other phases: L2, L3.
Harmonic phase angle: the instrument measures the angle between the single harmonic of “V” and the single harmon­ic of “I” of the same order. According to the value of the electrical angle, it is possible to know if the distortion is absorbed or generated. Note: if the system has 3 wires the angle cannot be measured.
Harmonic details: the harmonic contents is displayed as a graph showing the whole harmonic spectrum. This value is also given as a numerical information: THD % / RMS value; THD odd % / RMS value; THD odd % / RMS value / single harmonics in % / RMS value. System: the harmonic distortion can be measured in single­phase, 3-wire or 4-wire systems. Tw: 0.02.
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Technical features
81
Supply specifications
72
■ Time period management (energy, water and
gas metering)
Time periods: Energy. Selectable: single time, dual time and multi-time. Single time: Energy, water, gas Number of meters: total: 4 (9-digit) (no partial meters)
Dual time: Energy, gas Number of meters: total: 4 (9-digit); partial: 8 (6-digit). Time periods: 2, programmable within 24 hours.
Multi-time: Energy Number of meters: total: 4 (9-digit); partial: 48 (6-digit). Time periods: 4, programmable within 24 hours. Time seasons: 3, programmable within 12 months.
Pulse output: connectable to total and/or partial meters (dual time, multi-time periods).
Energy metering recording: Energy consumption history, recording of energy metering by months, oldest data: 2 months before current date. Recording of total and partial energy metering. Energy metering recording (/EEPROM). Max.999.999.999 kWh/kvarh.
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User’s page
79
Load profile
Name: . . . . . . . . . . . . . . . . . . .Surname: . . . . . . . . . . . . .
Company name: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WM4-96 Serial number: . . . . . . . . . . . . . . . . . . . . . . . . . .
Password: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Instrument’s settings:
Pulse value for gas meters: . . . . . . . . . . . .water: . . . . . . .
Pulse value for kWh meters: . . . . . . . . . . .kvarh: . . . . . . .
Tariff check by means of digital inputs: YES NO
System: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Full scale power YES : . . . . . . . . . . . . . . . . . . . . . . . . .
CT ratio: . . . . . . . . . . . . . . . . .VT: . . . . . . . . . . . . . . . . . .
Max/min values, events (tick in case of on-event)
MAX1: . . . . . . . . . .MAX2: . . . . . . . . . .MAX3: . . . . . . . . . .
MAX4: . . . . . . . . . .MAX5: . . . . . . . . . .MAX5: . . . . . . . . . .
MAX6: . . . . . . . . . .MAX7: . . . . . . . . . .MAX8: . . . . . . . . . .
MAX9: . . . . . . . . . .MAX10: . . . . . . . . .MAX11: . . . . . . . . .
MAX12: . . . . . . . . .MIN1: . . . . . . . . . .MIN2: . . . . . . . . . .
MIN3: . . . . . . . . . .MIN4: . . . . . . . . . .MIN5: . . . . . . . . . .
MIN6: . . . . . . . . . .MIN7: . . . . . . . . . .MIN8: . . . . . . . . . .
D1: . . . . . . . . . . . .D2: . . . . . . . . . . . .D3: . . . . . . . . . . . .
D4: . . . . . . . . . . . .R1: . . . . . . . . . . . .R2: . . . . . . . . . . . .
R3: . . . . . . . . . . . .R4: . . . . . . . . . . . .A1: . . . . . . . . . . . .
A2: . . . . . . . . . . . .A3: . . . . . . . . . . . .A4: . . . . . . . . . . . .
Tariffs
Single time Dual time Multi time
Whole year . . . . . .from: . . . . . . . . . . .to: . . . . . . . . . . . . .
Winter . . . . . . . . . .from: . . . . . . . . . . .to: . . . . . . . . . . . . .
Summer . . . . . . . .from: . . . . . . . . . . .to: . . . . . . . . . . . . .
Holiday . . . . . . . . .from: . . . . . . . . . . .to: . . . . . . . . . . . . .
Trf 1: . . . . . . . . . . .Trf 2: . . . . . . . . . . . . . .
Trf 3: . . . . . . . . . . .Trf 4: . . . . . . . . . . . . . .
Hardware configuration
Slot A: . . . . . . . . . . . . . . . . . . .Slot B: . . . . . . . . . . . . . . .
Slot C: . . . . . . . . . . . . . . . . . . .Slot D: . . . . . . . . . . . . . . .
Alarm set-point: VAR: . . . . . . .ON: . . . . . .OFF: . . . . . . . .
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