Universal Utility Meter
Contatore Universale
USER MANUAL
MANUALE ISTRUZIONI
WM24-96
Modular system
Tecnologia modulare
CARLO GAVAZZI
Automation Components
WM24-96: Modular Universal Utility
Meter and Power Analyzer
Plug and play module system; energy meters, gas and water meter.
These are only a few among many
other functions performed by your
WM24-96. 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
Plug and Play
Modules
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2
Index
Front Panel Description
4
3
CARLO GAVAZZI
WM24-96, modular universal utility meter and power analyzer
FW rev. 01
TO BEGIN WITH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .04
■ Front panel description . . . . . . . . . . . . . . . . . . . .04
■ List and description of displayed measuring pages . . . .04
PROGRAMMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . .09
■ Access to the main menu . . . . . . . . . . . . . . . . . . .09
■ Change password . . . . . . . . . . . . . . . . . . . . . . . .09
■ System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
■ CT ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
■ VT ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
■ Dmd calculation . . . . . . . . . . . . . . . . . . . . . . . . .11
■ Access to the energy meters menus . . . . . . . . . .13
❑ The functions of the Energy Meters submenu. . .13
■ Digital outputs . . . . . . . . . . . . . . . . . . . . . . . . . . .16
❑ Digital output 1 . . . . . . . . . . . . . . . . . . . . . . .16
❑ Pulse digital output . . . . . . . . . . . . . . . . . . . .16
❑ Alarm digital output . . . . . . . . . . . . . . . . . . . .18
❑ Digital output 2 . . . . . . . . . . . . . . . . . . . . . . .19
■ Setting of serial communication port address . . . .20
■ Digital filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
■ End of programming . . . . . . . . . . . . . . . . . . . . . .21
■ Reset of total gas, water, energy meters . . . . . . .21
■ Reset of partial gas, water, energy meters . . . . . .22
■ How to prevent key-pad programming . . . . . . . . .22
USEFUL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . .23
■ Example of how to use the digital filter . . . . . . . . .23
■ What is ASY? . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
■ Retransmitted variables . . . . . . . . . . . . . . . . . . . .24
■ Alarm digital output . . . . . . . . . . . . . . . . . . . . . . .25
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
■ Operations preliminary to the installation . . . . . . .26
■ Front panel cut-out . . . . . . . . . . . . . . . . . . . . . . .27
■ Position of slots and relevant modules . . . . . . . . .28
■ Connection of optional modules . . . . . . . . . . . . . .31
■ 1-phase electrical diagrams . . . . . . . . . . . . . . . . .34
■ 3-phase electrical diagrams . . . . . . . . . . . . . . . . .34
TECHNICAL FEATURES . . . . . . . . . . . . . . . . . . . . .36
We suggest you to keep the original packing in case it is
necessary to return the instrument to our Technical
Service Department. In order to achieve the best results
with your instrument, we recommend you to read this
instruction manual carefully.
HOW TO USE THE SYMBOLS
Go to the page where the previous main 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.
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3
Index
Display “tot -1 .Cn”
2
7
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When the instrument is switched on it shows the page below:
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4
To begin with
Gas, water, en. meters
pages
6
8
Back-lighted LCD Display.
Display previous page.
Display next page.
Access to programming or
setting confirmation.
■Front Panel Description
■ List and Description of Displayed
Measuring Pages
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kW∑
PF∑
kvar∑
Hz
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kW∑
PF∑
kVA∑
Hz
kW dmd
kVA dmd
Serial communication status: r=Rx;
t=Tx (only with
serial communicat.
module inserted)
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If displayed in the
measuring mode it
means: the alarm is
ON.
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5
To begin with
Programming
3
Index
4
9
8
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VL1-N
VL2-N
VL3-N
V∑
A L1
A L2
A L3
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W L1
W L2
W L3
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PF L1
PF L2
PF L3
PF ∑
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kvar L1
kvar L2
kvar L3
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kVA L1
kVA L2
kVA L3
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A n
Multiplyer
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6
To begin with
“tot-Prd”
488
The energy meter pages are different according to the setting of the instrument (see energy meter menu on pag.13).
■ If you choose “tot” the instrument displays:
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Generated capacitive reactive
energy: integration of the sum of
single phase reactive powers of
quadrant 4 only.
Consumed capacitive reactive
energy: integration of the sum of
single phase reactive powers of
quadrant 2 only.
Generated inductive reactive
energy: integration of the sum of
single phase reactive powers of
quadrant 3 only.
Consumed inductive reactive
energy: integration of the sum of
single phase reactive powers of
quadrant 1 only.
Generated active energy: integration of the sum of single phase
negative active powers only.
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7
To begin with
dmd calculation
5
Measuring Pages
4
11
8
■ If you choose “tot-1.Cn” the instrument displays all
the pages displayed in the “tot” selection as well as:
■ If you choose “tot-2.Cn” the instrument displays all
the pages displayed in the “tot” selection as well as:
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Consumed active energy: integration of the sum of positive single phase active powers only.
GAS meter as m3, night tariff.
GAS meter as m3, day tariff.
Total WATER meter as m3.
Total GAS meter as m3.
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8
To begin with
System
3
Index
4
10
■ If you choose “tot-Prd” the instrument displays:
Once the energy meter pages are finished, the instrument
will display some pages related to the variables connected
to the alarm.
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Reactive energy consumed during tariff 1: integration of the system active power only if positive
(same is also for tariff 2, 3 and 4).
Active energy consumed during
tariff 1: integration of the system
active power only if positive
(same is for tariff 2, 3 and 4).
Consumed total reactive energy:
integration of the system reactive
power only if positive.
Consumed total active energy:
integration of the system active
power only if positive.
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The scrolling of the measuring pages is cyclic, at the end of the
cycle, you go back to the first page (see page 4).
Display of alarm settings (AL1 and
AL2 if both alarms have been set).
It displays the variable connected
to the alarm.
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9
Programming
En. meters Menu
7
En. meters Display
13
22
When the “AL” box (normally used for the alarm
indication) is active during the programming phase,
it means that the displayed value can be modified.
This rule applies to all the programming menus.
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S
S
Access to the
main menu
■Access to the main menu
To access to the programming
menus from the measuring and dis-
play phase, press the key : when
the instrument asks for the password, enter the correct PASS value
by means of the and keys;
afterwards confirm by means of the
key. If the password is correct
(when the instrument is new, the
password is 0), the instrument goes
to the main functions menu.
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S
S
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■Change Password
This function allows the operator to
choose the desired password value
(from 0 to 1000).
Choose the “CnG.PASS” function
by means of the and keys,
then press to modify PASS,
enter the desired value by means of
the and keys and confirm
the new value with the key.
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S
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10
Programming
Synchronization
5
Measuring Pages
91222
S
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S
■System
This function allows the operator to
select the electrical system choosing between three-phase with neutral (3P.n) and three-phase without
neutral (3P).
Choose by means of and
the “SySTEn” function, press
to enter the menu; then, select the
desired system by means of the
and keys and confirm with
.
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1.2..
..2.1
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■CT ratio
This function allows the user to
select the value of the CT ratio.
Example: if the CT primary (current
transformer) has a current of 300A
and the secondary has a current of
5A, the CT ratio corresponds to 60
(obtained by carrying out the following calculation: 300/5).
Choose the “Ct.rAtio” function by
means of the and keys; to
enter the menu press ; then
select the desired value by means
of the and keys and con-
firm the new value with .
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S
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11
Programming
Digital Input Table
9
Main Menu
9
15
22
S
S
S
S
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1.2..
..2.1
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■VT ratio
This function allows the user to
select the value of the VT ratio.
Example: if the primary of the connected VT (voltage transformer) is
of 20kV and the secondary is 100V,
the VT ratio will correspond to 200
(obtained by carrying out the following calculation: 20000/100).
Choose the “Vt.rAtio” function by
means of the and keys; to
enter the menu press , then
select the desired value by means
of the and keys and con-
firm it with .
By changing the VT and
CT ratio, the energy
meters are reset.
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S
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S
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1.2..
..2.1
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■Dmd calculation
This function allows the user to
select the integration time of the W
and VA demand value. To enter
these functions select “P.int t” from
the main menu by the and
keys; to enter the menu press .
Set the minutes by means of the
and keys and confirm the
new value with .
S
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S
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If, for example, you select the value “15 minutes”, the instrument calculates the demand value
and updates the value every 15 minutes. See the
diagram below.
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12
Programming
Meters Submenu
7
Energy Meters Pages
91422
Where: Pc is the contractual power
t1 is the selected integration period
SYNCHRONIZATION OF THE POWER DEMAND CALCULATION
The synchronization enables the WM24-96, by means of the
digital inputs, to start the integration of the power demand
at the same time as the official watthour meter. The synchronization can be carried out in two ways:
- Without digital input module: the reset and the start of the
energy integration are carried out when the instrument is
switched on;
- With the digital input module: the synch. starts when one
of the digital inputs changes status (that is to say when the
tariff changes). Any following change of status resets and
synchronizes again the calculation of the power demand.
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13
Programming
Retransmitt. en. Meters
11
VT Ratio
9
17
22
S
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S
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■ Access to the energy
meters menu
This function allows the user to choose
the parameters for the management of
the energy meters. Choose the function
“COUntEr” by means of the and
keys: to confirm the value and enter
the submenu press . By means of
the and keys, it’s possible to
scroll all the functions relating to the
energy meters that will be described in
detail below.
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❑ The functions of the Energy
Meters submenu.
Choose the desired function by
means of the and keys,
press to confirm. It’s possible
to choose the following combinations:
tot: it enables the combination of
total and partial meters (see page
6).
tot Prd: it enables the combination
of total and partial meters: tariff t1,
t2, t3 and t4 are managed by the
digital inputs (see page 8);
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Programming
Digital Outputs
9
Main Menu
91622
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1.2..
..2.1
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tot 1.Cn: it enables the combination of
total en. meters and day-time and nighttime GAS meters (see also “Display
pages” on page 7). Press to select
“PrESCAL Cn1”, then enter by means
of the keys the weight of every
pulse of the IN2 digital input of the GAS
meters and confirm with .
The same input IN2 increases alternatively the day-time and night-time GAS
meters depending on the status of IN3.
tot 2.Cn: it enables the combination of
total energy meters and Water and Gas
meters (see also “Display pages” on
page 7). Press to select “PrESCAL
Cn1” then enter by means of the
keys the weight of every pulse of
the IN3 digital input of the water meters,
confirm with and go to the
“PrESCAL Cn2” submenu.
Enter by means of the keys
the weight of every pulse of the IN2
digital input of the Gas meter, then
confirm with .
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S
S
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S
S
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1.2..
..2.1
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S
S
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1.2..
..2.1
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The prescaler (PrESCAL) sets the weight of the input
pulses of the digital input module; e.g.: by setting the
prescaler at 10, for each received pulse the meter
increases by 10 (10, 20, 30, etc.). The range of the
prescaler varies from 0.1 to 100.0.
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15
Programming
Digital Output 2
13
Energy Meters
9
19
22
The increase of the Water, Gas meters, the selection of night/day tariff of the gas meters or the
change of tariff (t1, t2 t3, t4) is carried out thanks to
the combination of the input pulses to the AQ1038
or AQ1042 digital input module, according to the
following table:
SETTING OF
INSTRUMENT
Setting “tot Prd”
Display of total and partial multi-tariff energy
meters.
Setting “tot 1.Cn”
Display of total en.
meters and GAS
day/night tariff.
Setting “tot 2.Cn”
Display of total energy
meters, GAS and
WATER.
RESULT
Tariff 1
Tariff 2
Tariff 3
Tariff 4
GAS night tariff
GAS day tariff
DIGITAL INPUTS
IN 3
ON
ON
OFF
OFF
ON
OFF
OFF
ON
Increase
of
GAS
meters
(*)
Increase
of
WATER
meters
(*)
Increase
of
GAS
meters
(*)
ON
ON
IN 2
(*) The pulse corresponds to an increase of the various
meters by the pre-set weight.
If the IN 1 contact is closed (3 digital inputs module), the
programming from key pad is inhibited.
The synchronisation starts at the status modification of the
digital inputs (IN2 and IN3) when the instrument is set to
“tot” or “tot-Prd”.
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16
Programming
Alarm Output
11
dmd Calculation
91822
S
S
S
S
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Alarm digital out-
put on page 18
Digital output 2
on page 19
■Digital Outputs
❑Digital Output 1
This function enables to set the
parameters of the digital outputs.
Choose the “diGout” function by
means of the and keys, to
enter the menu press . Then,
select one of the following
options;
PUL: access to the retransmission
functions of the totalized energy
by means of pulses (see pulse digital output);
ALr: access to alarm functions
(see alarm digital output); To enter
to relevant menu press ;
rEn: enables the activation of the
output by means of the serial
communication. Confirm with
to enable the function.
❑Pulse digital output
Select “diGout1 PUL” by means of
the and keys: press
to enter the relevant programming
submenu, then choose the meter
to be retransmitted among the
available ones.
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Programming
End of Programming
15
Digital Input Table
9
21
22
Digital output 2
on page 19
The list displaying the en. meters to be retransmitted
varies depending on the chosen setting of the
instrument, that is, depending on the “en. meter”
selection chosen among: “tot”, “tot-Prd”, “tot-
1.Cn”, “tot-2.Cn”, as reported in the table below:
IF THE SELECTION IS
tot, tot-1.Cn, tot-2.Cn:
kWh (consumed)
kWh- (generated)
kvarh ind (cons. inductive)
kvarh -ind (gen. inductive)
kvarh CAP (cons. capacitive)
kvarh -CAP (gen. capacitive)
IF THE SELECTION IS
tot-Prd:
kWh tot (total energy meter)
kvarh tot (total en. meter)
kWh t1 (energy meter tariff 1)
kvarh t1 (energy meter tariff 1)
and so on for the other
tariffs t2-t3-t4.
EXAMPLE OF DISPLAY
Scroll the energy meters displayed by means of and
choose the desired one by means of , then the instrument displays the page where the pulses to be associated
to the energy are indicated.
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Select the number of pulses by
means of (pulses/kWh from
1 to 100) and confirm with .
The
programming continues for digital
output 2.
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S
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1.2..
..2.1
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18
Programming
Digital Filter
13
Energy Meters Menu
92022
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❑Alarm Digital Output
This function allows the
user to set the parameters of the
alarm digital output. Choose the
“diGout1- ALr” function by means
of the keys: to enter the
menu press . Then, set the following parameters:
VAr: choose the variable to be
associated to the alarm activation
by means of the and keys
and confirm with .
rnG: choose the decimal point
position.
on: activation set-point, value of the
variable over which the alarm is activated. Select the value of the variable
by means of the and keys
and confirm it with ;
oFF: deactivation set-point, value of
the variable over which the alarm is
deactivated. Select the value of the
variable by means of the and
keys and confirm it with ;
nd: normally de-energized output
when there is no alarm.
nE: normally energized output
when there is no alarm.
Select the output status by means
of the and keys and con-
firm it with ;
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S
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S
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S
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1.2..
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1.2..
..2.1
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S
S
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S
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19
Programming
Useful Information
17
R
etransmittable en. meters
9
23
22
SEC: delay time from the detection
of the alarm and the activation of
the output. Choose the value of the
delay time in seconds by means of
the and keys (up to 255
seconds) and confirm with .
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S
Digital output 2
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1.2..
..2.1
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S
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❑Digital Output 2
PUL: access to the retransmission
functions of the totalized energy by
means of pulses (see pulse digital
output on page 16).
ALr: access to alarm functions (see
alarm output on page 18). To enter
the relevant menu press ;
rEn: enables the activation of the
output by means of the serial com-
munication. Confirm with to
enable the function.
S
S
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20
Programming
Meters Reset
15
Meters Increase
92222
■ RS422/485 Serial port
address
Select “AddrESS” from the main
menu by means of the and
keys; to enter the menu press ,
then set the desired serial address
value (from 1 to 255) by means of
the and keys and confirm it
with .
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S
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S
S
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1.2..
..2.1
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S
S
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1.2..
..2.1
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S
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1.2..
..2.1
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■Digital Filter
Select “FiLtEr” by means of the
and keys: to enter the menu press
. Select the parameters to be set
with the and keys, to enter
the menu press .
There are two parameters:
- rnG, sets the operating range of the
digital filter. The value is expressed as
% of the full scale value: set the
desired value (from 0 to 100%) by
means of the and keys and
confirm it with ;
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S
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Coe, sets the filtering coefficient of the instantaneous measure-
ments. Set the desired value (from 1 to 16) by means of the and
keys and confirm it with . By increasing the value both the
stability and the settling time of the measurements are increased.
See also “Example 2” in Useful Information on page 23.
S
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21
Programming
Up/Down Alarm
19
Digital Output 2
9
25
22
■ End of programming
To exit from programming and go
back to the measuring mode, select
“End” from the main menu by means
of the and keys, confirm it
with
.
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Measuring
mode
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S
S
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RESET
■
Reset of total meters
Select “rESEt tot” from main
menu by means of the keys,
then confirm with . When the
instrument asks for the reset, choose,
by means of the keys:
“no” to avoid the reset or
“yes” to confirm it.
Then, press to carry out the command.
S
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S
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Instrument
revision
■How to prevent the programming by key-pad
It is possible to prevent any access to
programming by modifying the switch in
the power supply slot (see the drawing on
the left), or closing the contact N 1 of the
digital input module if present.
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22
Programming
What is ASY
17
Retransmittable meters
10
24
■ Reset of partial meters
Select “rESEt Prt” from the main
menu by means of the keys,
then confirm with . When the
instrument asks for the reset, choose,
by means of the keys:
“no” to avoid the reset or
“yes” to confirm it.
Then, press to carry out the command.
S
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S
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S
S
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RESET
Turn the switch using a little screwdriver.
-
Free programming.
- Lock programming.
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23
Useful Information
Dimensions
21
End of Programming
27
25
The variables measured by the instrument are
correct if the polarities of the inputs have been
observed (as shown in the figure below); if not,
measuring and retransmission errors may occur due to
the wrong direction of the current flowing in the primary
/ secondary of the connected current transformer.
Example 2 “Use of digital filter”:
it’s necessary to stabilize
the displayed value of the VL1-N variable that varies between
222V and 228V. The parameters of the digital filter are to be
set as follows:
• rnG: the variable varies within the average value, the
amplitude of which is equal to ±1.3% of the variable’s rated
value, calculated as follows:
(228-222)/2=±3V, then ±3*100/231V=±1.3%, where 231V
is the phase-neutral rated value of a 400V input range. The
“range” parameter, that corresponds to the action range of
the digital filter, is set at a value which is slightly higher than
the percentage amplitude of the fluctuation: e.g. 2%.
• CoE: if the new value acquired by the instrument is within the filter’s action range, then the new displayed value is cal-
culated by summing algebraically to the previous value the
variation divided by the filtering coefficient. As a consequence, a value which is higher than this coefficient implies a
longer settling time and therefore improves the stability. The
latter can also be improved by increasing the filtering coefficient: the admitted values are within 1 and 16. Enter the value
in consecutive attempts until you reach the desired stability.
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24
Useful Information
Installation
19
Digital Output 2
232625
■What is ASY
The ASY variable allows the user to control the symmetry of
the delta voltages (for systems without neutral) and star voltages (for systems with neutral). The variable is calculated
according to the following formula:
Where: Vmax is the max. value among VL1-N, VL2-N, VL3-N
Vmin is the min. value among VL1-N, VL2-N, VL3-N
Vavg is the average: (VL1-N, VL2-N, VL3-N)/3
The variable is not displayed by the instrument, but can be
retransmitted by the analogue or RS422 / 485 output and
can be controlled by means of the alarm.
■Retransmitted variables
Vmax - Vmin
Vavg
*100ASY=
N° Variable 3-ph with 3-ph with- Notes
neutral out neutral
1 V L-NΣ x Σ = system
2V L-LΣ xxΣ = system
3WΣ xxΣ = system
4 varΣ xxΣ = system
5VAΣ xxΣ = system
6PFΣ xxΣ = system
7PF x x
8 VA dmd x x
9 W dmd x x
10 ASY x x asymmetry
11 The energy meters as per table on page 17
12 All instantaneous variables (powers, currents, voltages)
▲
▲
25
Useful Information
Available Modules
23
E.g.: Use of Digital Filter
23
29
■Alarm digital output
The activation of the alarm can be up or down depending on
how the ON and OFF parameters have been set, as per the
following table:
■Displaying of programming menu
It may be useful to know that the menus displayed
by the instrument depend on its configuration;
e.g.: the instrument will not display the menu relevant to the digital outputs if the optional module
is not inserted.
It is important that the instrument is switched
off when you plug-in or disconnect the modules.
ON-OFF ALARM TYPE
VALUES STATUS
ON ≥ OFF UP
ON < OFF DOWN
▲
▲
26
Installation
Position of Slot
21
End of Programming
28
35
■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.
■Before mounting the modules
To know in which slot every module is to be mounted,
refer to the figure on page 28. 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.
Gently depress the
two fixing tabs.
Directions 1-4.
1
Remove the central module
from its slot: press your
thumb towards points 2-5.
2
Extract the
central
module.
3
Any other slots that are not
used must be filled with the relevant blind plug modules supplied with the instrument.
▲
▲
27
Installation
Optional Modules conn.
25
Up/Down Alarm
26
31
35
■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 appropriate
location (2), using the two
screws (3) supplied with the
instrument.
1
3
2
▲
▲
28
Installation
Optional Modules
23
E.g.: Use of Digital Filter
263035
■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
▲
▲
29
Installation
Serial connection
27
Mounting
26
33
35
DESCRIPTION A B C D PU PS IM
RS485/RS422 serial port ✓
RS232 serial port ✓
Single relay output ✓✓
Single open collector output ✓✓
Dual relay output ✓✓
Dual open coll. output ✓✓
3 digital inputs ✓
3 digital inputs +AUX ✓
Power supply ✓
Measuring inputs ✓
❑Open collector digital output modules
AO1059
Single open
collector output
AO1036
Dual open
collector output
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▲
30
Installation
Relay Output conn.
25
Up/down Alarm
263235
AQ1038
3 digital
inputs
AQ1042
3 digital inputs +
aux
AR1034
RS485/422
serial port
AR1039
RS232 serial port
AP1020
90-260 VAC/DC Power supply
AP1021
18-60VAC/DC Power supply
AP1025
24VAC Power supply
AP1024
48VAC Power supply
AP1023
115VAC Power supply
AP1022
230VAC Power supply
❑Digital input modules
❑Serial port modules
❑ Power supply modules
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▲
31
Installation
3-ph 3-wire connection
29
Modules Position
26
35
35
Connection by
NPN transistor.
AQ1042
Digital input
module.
Connection by
contacts.
AQ1042
Digital input
module.
Connection by
contacts.
AQ1038
Digital input
module.
Connection by
PNP transistor.
AQ1042
Digital input
module.
■Optional module connections
❑ Digital inputs
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▲
32
Installation
Electrical diagrams
27
Dimensions
263435
This diagram is valid also
for the single output open
collector module.
The value of the load
resistances (Rc) must be
chosen so that the shortcircuit current is lower
than 100mA; the VDC
voltage must be lower
than or equal to 30 VDC.
❑Relay output
❑Open collector output
AO1058
Single relay output
AO1035
Dual relay output
AO1059
Single open collector output
AO1036
Dual open collector output
▲
▲
33
Installation
Technical features
31
Digital Input Conn.
26
37
35
❑RS485/422 (AR1034) serial port
4-wire connection. Additional devices provided with
RS485/RS422 (that is RS 1,2,3...N) are connected in parallel.
2-wire connection. Additional devices provided with
RS485/RS422 (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.
▲
▲
34
Installation
Accuracy
29
Available Modules
263635
■Electrical diagrams
❑Single-phase connection
❑Three-phase, 4-wire, unbalanced load
L
1
N
L1
N
L3
L2
U
1
3 5
2
4 6
I
L1
L2
L3
8 7 10
9
CT and VT connectionsCT connection
L
1
N
L1
N
L3
L2
U
1
3 5
2
4 6
I
L1
L2
L3
8 7 10
9
CT connection
(4-wire system)
CT and VT connections
(4-wire system)
▲
▲
35
Installation
Technical Features
33
Serial Connection
26
39
CT connection
(3-wire system) ARON
CT and VT connections
(3-wire system) ARON
❑ARON connection, 3-phase, 3-wire, unbalanced load
CT and VT connections
(3-wire system)
3 CT and 3 VT connections
(3-wire system)
▲
▲
36
Technical Features
Digital Inputs
31
Digital Inputs Connection
38
40
■Number of inputs
Current: 3; Voltage: 4
■Accuracy
(display, RS232, RS485) In=5A; Pn= In* Un
Current: 0.003Ib to 0.2Ib: ±(0.5% rdg + 3DGT);
0.2Ib to Imax: ±(0.5 rdg + 1DGT);
Phase-neutral voltage: Un range: ±(0.5% rdg + 1DGT)
Frequency: ±0.1% Hz
Active power/energy: class 1 according to EN61036
Reactive power/energy: class 2 according to EN61268
Apparent power/energy: ±(1% Pn+2dgt), (@25°C ±5°C, R.H. ≤60%)
■Temperature drift
≤ 200ppm/°C
■Display refresh time
700ms
■Display
Back-lighted LCD 70 x 38mm
4x3
1
/2 dgt: instantaneous variables;
1x7
1
/
2
dgt: energy meters.
■Measurements
Current, voltage, power, power factor, frequency, energies.
TRMS measurements of distorted waves.
Coupling type: direct.
■Input impedance
208VLL 5(6)AAC (AV4): >200 kΩ (phase-neutral)
400VLL 5(6)AAC (AV5): >900 kΩ (phase-neutral)
100VLL 5(6)AAC (AV6): >200 kΩ (phase-neutral)
660VLL 5(6)AAC (AV7): >900 kΩ (phase-neutral)
■Input/Output modules technical features
RS422/RS485 (on request)
Multidrop bidirectional (static and dynamic variables)
▲
▲
37
Technical Features
35
Electrical diagrams
36
40
Connections: 2 or 4 wires, max. distance 1200m, termination directly on the instruments.
Addresses: from 1 to 255, selectable by key-pad
Protocol: MODBUS/JBUS (RTU)
Data (bidirectional) Dynamic (reading only)
System and phase variables: see “display pages” on page 41
All configuration parameters, activation of the static output.
Data format: 1 start bit, 8-data bit, no parity,1 stop bit.
Baud-rate: 9600.
Insulation: By means of optocouplers, 4000 V
RMS
between
output and measuring input, 4000 V
RMS
between output and
power supply input.
RS232 (optional)
Bidirectional (static and dynamic variables)
Connections: 3 wires, max. distance: 15m.
Data format: 1 start bit, 8 data bit, no parity, 1 stop bit.
Baud-rate: 9600 bauds. Protocol: MODBUS (JBUS)
Other features: as per RS422/485
Pulse outputs (optional)
Number of outputs: Up to 2
Type:
from 1 to 100 programmable pulses
VON1.2 VDC/ max.
100 mA. V
OFF
30 VDC max.
The outputs can be connected to total and/or partial en. meters.
Pulse duration: ON=
220 ms, OFF≥ 220 ms
according to
DIN43864
Insulation: By means of opto-couplers, 4000 V
RMS
between
output and measuring input, 4000 V
RMS
between output and
power supply input.
Notes: outputs can be open collector or relay type (for the
relay output refer to the technical features described in the
alarms).
▲
▲
38
Technical Features
General Specifications
33
Electrical diagrams
364040
Alarm outputs (optional)
Number of outputs: up to 2, independent
Alarm type: up or down alarm, phase asymmetry
Control on the variables: All variables listed in the paragraph
“retransmitted variables” on page 24 can be controlled.
Alarm set-point: can be modified from 0 to 100% of the displayed electrical scale.
Hysteresis: From 0 to 100% of the displayed scale
On-time delay: from 0 to 255 sec
Relay status: selectable, normally disabled or normally
enabled.
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 exclud-
ed, on-time delay: ”0”
Insulation: 4000 V
RMS
between output and measuring input,
4000 V
RMS
between output and power supply input.
Notes: Outputs can be open collector type or relay type (for
the open collector type refer to the technical features
described in the pulse outputs).
Digital inputs
AQ 1038: N. of inputs: 3 (free-of-voltage)
Reading voltage: 24VDC/1mA
AQ1042: N. of inputs: 3 + power supply inputs
Power supply inputs:
output voltage: 16V<+Aux<24VDC;
output current: Max 15mA.
Input frequency: Max 20Hz, duty cycle 50%
Close contact resistance: Max 1kΩ
Open contact resistance: Min 100kΩ
Insulation: 4000VRMS
Use of contact 1: lock of the programming from key-pad
(when the contact is closed).
▲
▲
39
Technical Features
37
Pulse outputs
36
40
Contacts 2-3: to be used in one of the following ways:
• tariff selection (t1-t2-t3-t4) and synchronization;
• total meters for day-night GAS tariffs;
• total GAS and WATER meters ;
■Software functions
Password: Numerical code of 4 dgts; 2 protection levels of
the programming data
1st level: Password “0”, no protection
2nd level: Password from 1 to 1000, all data are protected
Transformer ratio: CT from 1 to 5000
VT from 1.0 to 1999, with CT x VT ≤10000 max
Power dmd: Integration time programmable from 1 to 30 min
Filter: operating range: from 0 to 100% of the electrical input
scale
Filtering coefficient: 1 to 16
Filtering action: measurements, alarms, serial output
Display: up to 4 variables per page, 3-phase system with
neutral:
Page 1:
V L1, V L2, V L3, V LN∑
Page
2: AL1, AL2, AL2
Page 3:
W L1, W L2, W L3
Page 4: VA L1, VA L2, VA L3
Page 5: var L1, var L2, var L3
Page 6: PF L1, PF L2, PF L3, PF ∑
Page 7: W ∑, var ∑, PF ∑, Hz
Page 8: W ∑, VA ∑, PF ∑, Hz
Page 9: W dmd, VA dmd
Counter pages depending on the instruments setting:
Wh+ tot, Wh- tot, Wh tot, varh tot, varh L+ tot, varh L-,
varh C+, varh C-, m3 day GAS, m3 night GAS,
m3 GAS, m3 WATER, Wh t1, Wh t2, Wht 3, Wht4, varht1,
varht2, varht3, varht4.
▲
▲
40
Technical features
35
Electrical diagrams
36
■ Power supply specifications
90 to 260 VDC/VAC;18 to 60VDC/VAC;
24 VAC -15%+10% 50-60Hz; 48 VAC -15%+10% 50-60Hz;
115VAC -15%+10% 50-60Hz; 230 VAC -15%+10% 50-60Hz
■General features
Operating temperature:
0 to +50°C (32 to 122°F) (H.R. < 90% non condensing)
Storage temperature:
-10 to +60°C (14 to 140°F) (HR. < 90% non-condensing)
Installation category: Cat. III (IEC 664)
Key-pad lock: by means of switch placed behind the dis-
play or by means of contact (if module 3 - input contacts is present).
Insulation: 4000 V
RMS
between inputs/outputs and ground
Dielectric strength: 4000 V
RMS
for 1 minute
■EMC
Emissions: EN50082-1 (class A) residential, commercial
and light industry environment. Immunity: EN 61000-6-2
(class A) industrial environment.
■Other standards
Safety: IEC 61010-1, EN 61010-1
Product: IEC 60688-1, EN 60688-1
Approvals: CE
5(6)A connections: screw-type, max. section 2.5 mm
2
(2 x 1.5mm2)
Housing: Dimensions: 96x96x140 mm
Material: ABS, NORYL, PC (front); self-extinguishing: UL 94 V-0
Protection degree: Front: IP65
Connections: IP20
Weight: approx. 400 g (packing included)
OUR PRODUCTION SITES
Carlo Gavazzi Industri A/S
Hadsten - DENMARK
Inductive and Capacitive
Proximity
Sensors in full metal and
plastic
housings. Photoelectric
Sensors.
Level Sensors: Optical,
Conductive
and Capacitive.
Ultrasonic Sensors and
Magnetic
Switches. Limit Switches.
Dupline Field and Installation
Bus.
Building Automation Systems.
Carlo Gavazzi Ltd
Zejtun - MALTA
Solid States Relays.
Versions for PCB and panel
mounting.
AC Semiconductor Motor
Controllers
Soft starters.
Industrial and PCB Relays.
Carlo Gavazzi Controls SpA
Belluno - ITALY
Energy Management.
Timers and Monitoring
Relays.
Digital Panel Meters and
Temperature Controllers.
SAIET Elettronica SpA
Castel Maggiore (BO) - ITALY
Safety and Magnetic
Switches,
Safety Modules.
Mat Systems, Light Curtains,
Electrical Transient,
Protections.
Measuring Systems and
Encoders.
OUR SALES NETWORK
Carlo Gavazzi GmbH
Wien - AUSTRIA
Carlo Gavazzi NV/SA
Vilvoorde - BELGIUM
Carlo Gavazzi Inc.
Mississauga, ON - CANADA
Montreal, PQ - CANADA
Carlo Gavazzi Handel A/S
Hadsten - DENMARK
Carlo Gavazzi OY AB
Helsinki - FINLAND
Carlo Gavazzi Sarl
Roissy - FRANCE
Carlo Gavazzi GmbH
Weiterstadt - GERMANY
Carlo Gavazzi UK Ltd
Aldershot - GREAT BRITAIN
Carlo Gavazzi SpA
Lainate (MI) - ITALY
Carlo Gavazzi Automation Sdn Bhd
Petaling Jaya, Selangor - MALAYSIA
Carlo Gavazzi BV
Beverwijk - NETHERLANDS
Carlo Gavazzi AS
Porsgrunn - NORWAY
Carlo Gavazzi Lda
Lisboa - PORTUGAL
Carlo Gavazzi SA
Leioa (Bizkaia) - SPAIN
Carlo Gavazzi AB
Karlstad - SWEDEN
Carlo Gavazzi AG
Steinhausen - SWITZERLAND
Carlo Gavazzi Inc.
Buffalo Grove IL - USA
Further information on
www.carlogavazzi.com
CARLO GAVAZZI
Automation Components
WM24 ita-eng code 8020593 02/2003
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