Orbis CONTAX D-0643-BUS Manual De Instrucciones página 3

ACTIVE AND REACTIVE INDIRECT MEASUREMENT THREE-PHASE
Current circuit terminal
Display
2014
Serial number
Voltage circuit
terminals
Displayed parameter
Active pricing period
Energy direction
Import
Export
CONTAX D-0643-BUS is a three-phase digital static modular recorder meter of
indirect measurement, with network analyser functions, of both active and reactive
power in three-phase systems of alternating current with a voltage of 3x230/400 V.
CONTAX D-0643-BUS is a FIXED-type equipment, and it is designed to operate
permanently connected in environments
MEASUREMENT CATEGORY III.
For example: measurements on switchboards, junction boxes, power sockets in fixed
installations and equipment for industrial use with a permanent connection to the
fixed installation.
INSTALLATION
WARNING: Installation and mounting of electrical devices must be carried out by an
authorised professional.
The device must be installed in a switch box or control cabinet in a way that ensures
that the terminals connected to the supply NETWORK ARE NOT ACCESSIBLE after
the installation.
WARNING: THE INSTALLATION MUST INCLUDE an automatic switch or an
overcurrent protection device of a proper value located over the meter.
IT IS ADVISABLE that the automatic protection switch is conveniently located next to
the equipment and easily accessible to the operator.
The equipment is internally protected against interference by a security circuit.
However, some particularly strong electromagnetic fields may alter its functioning.
Interference can be avoided if the following installation rules are taken into account:
- The equipment must not be installed near inductive loads (motors, transformers,
contactors, etc.)
- It is advisable to devise a separate line for supply (provided with a network filter if
necessary).
- Inductive loads must be provided with interference suppressors (varistor, RC filter)
When the equipment is installed under normal use conditions, the measuring
terminals stay permanently connected and NOT ACCESSIBLE. No additional
ventilation requirements are necessary.
In such conditions, the equipment is protected against solar radiation, rain and wind
exposure, but neither temperature nor humidity are monitored.
CONNECTION
BEFORE PROCEEDING TO THE INSTALLATION, DISCONNECT SUPPLY.
Connect according to circuit diagram.
Restore power with the automatic switch when the device is fully installed.
Class II equipment under correct installation conditions. DOES NOT NEED earthing
protection arrangements.
Respect the direction of the energy in the transformers, as shown in the
diagram
P E
N
L 3
L 2
P 1
L 1
2 0 2 1
1
CONTAX D-0643-BUS
Communications port
RS485 Modbus (RTU)
Reactive power control
optical output (imp/kvarh)
CONTAX D-0643-BUS
CL.2
10000imp/kvarh
Active power control
CL.1
10000imp/kWh optical output (imp/kWh)
MWh - Mvarh
3x230V/400V
Sel
1,5(6)A 50Hz
Set button
IEC 62053-21/23
Parameter value
Low battery
level indicator
Date and time symbol.
MODBUS communication
with pollution degree
P 1
P 2
S 1 S 2
P 1
P 1
R S 4 8 5
A B
2 2 2 3 2 4 2 5 2 6 2 7
3 4 6
SETTINGS (EXTERNAL CURRENT TRANSFORMERS)
NOTE: This step is necessary for the right display of the installation's real values.
- Supply one of the phases of the voltage circuit
In the equipment
From normal functioning
METER
- Press the Set key during more than 3 seconds until the text "CODE" appears.
- Enter the user code (0000 by default)
Advance through the digits with a short press (the selected digit flickers) and
confirm with a long press.
If an error occurs, the text "Error" appears and the code is requested again.
Once the correct code has been entered, the text "PASS" appears.
Next, the current value of transformation ratio (0005: 5) appears flickering.
Change the value with a short press
(5,10,25,50,75,100,125,150,200,250,300,400,500,600,800,1000)
and confirm with a long one, the text "SAVE" appears and it returns to the
normal display.
If there is no pressing during 20 seconds, the screen returns to normal mode
From a PC
- Wire up Modbus port to a PC
- Open CONTAX D BUS tool on PC
- On the Settings / Ratio screen, enter the suitable value and press the submit
button to record in the equipment.
EQUIPMENT OPERATION AND MAINTENANCE
When the equipment has been configured (see SETTINGS) the meter will begin
registering the active and reactive power of the three-phase system in question.
The control optical outputs (Red LED) will emit impulses in proportion to the
registered energy, according to the meter's fixed value.
The meter's fixed value is the value that expresses the relation between the energy
registered by the meter and the corresponding value given by the control output. The
meter's fixed value for the control optical output (LED) is 10,000 imp/kWh/kvarh.
Measurement errors
For the error to stay within the equipment class limits (Class 1 Active, Class 2
Reactive), the Current Transformer must be used in its linear operating field, staying
in the interval provided for by UNE-EN 62053-21 and UNE-EN 62053-23, as follows:
LOADS WITH POWER FACTOR
2,5%
2%
3 and
(1)
0%
-2%
-2,5%
30mA 75mA
2,5%
2%
(1)
0%
-2%
-2,5%
30mA 75mA
When the rated current value is Ib = 1.5 A the measurement error for active power
will be less than ± 1%, and less than ± 2% in reactive power.
For current values under the area limit values (1) the error % is not determined.
Display
The equipment has a 6-digit digital display (MWh/Mvarh).
When the meter is switched on, after approximately 2 s with the display completely
on, the firmware version of the equipment is displayed.
Next, the meter's slave address appears (final part of the serial number, see barcode
on the front) and the screens of the different readings will appear in succession,
approximately every 5 s.
To indicate the pricing period of the meter, 'Tn' is displayed for the summer season
and 'n' for the winter season; 'n' indicates the period number (1, 2, 3, 4) of that
timeslot.
When the equipment is receiving or transmitting data via Modbus, the
flickers.
NOTE: if you wish to see a different screen, advance pressing the Sel key.
NOTE: The displayed screens can be configured via Modbus.
Modbus Communication (RTU)
The meter has a series RS-485 output.
The data communication system is based on the MODBUS protocol and allows for
connecting to a Master device (PC/PCL...), in a common RS-485 line:
 Up to 32 slaves without using signal amplifiers, at a maximum distance of 1,000
m;
 Up to 247 slaves in groups of 32 separated by specific signal amplifiers.
Communication is carried out in half duplex and only the Master (PC/PLC...) can
initiate communication with slaves of the question/answer type (only one directed
slave). The features of the implemented MODBUS protocol are the following:
ACTIVE POWER
1 RESISTIVE
2,5%
2%
(1)
0%
-2%
-2,5%
1,5A 6A 75mA 150mA
3A
Ib Imax
REACTIVE POWER

sen =1
LOADS WITH
INDUCTIVE o CAPACITIVE
2,5%
2%
(1)
0%
-2%
-2,5%
1,5A 6A 75 mA 150mA
3A
Ib Imax
LOADS WITH POWER FACTOR
0,5 INDUCTIVE / 0,8 CAPACITIVE
1,5A 6A
3A
Ib Imax

sen =0,5
LOADS WITH
INDUCTIVE o CAPACITIVE
1,5A 6A
3A
Ib Imax
symbol