Circutor ReadWatt Manual de usuario

INSTRUCTION MANUAL

(M018B01-03-22A)

Impulse sensor

ReadWatt

Instruction Manual

SAFETY PRECAUTIONS

DISCLAIMER

CIRCUTOR, SA reserves the right to make modifications to the device or the unit specifications set

out in this instruction manual without prior notice.

CIRCUTOR, SA on its web site, supplies its customers with the latest versions of the device specifica-

tions and the most updated manuals.

www.circutor.com

CIRCUTOR, recommends using the original cables and accessories that are supplied

with the device.

DANGER

Warns of a risk, which could result in personal injury or material damage.

ATTENTION

Indicates that special attention should be paid to a specific point.

Follow the warnings described in this manual with the symbols shown below.

If you must handle the unit for its installation, start-up or maintenance, the following should be

taken into consideration:

Incorrect handling or installation of the unit may result in injury to personnel as well as damage to the

unit. In particular, handling with voltages applied may result in electric shock, which may cause death

or serious injury to personnel. Defective installation or maintenance may also lead to the risk of fire.

Read the manual carefully prior to connecting the unit. Follow all installation and maintenance in-

structions throughout the unit’s working life. Pay special attention to the installation standards of the

National Electrical Code.

Refer to the instruction manual before using the unit

In this manual, if the instructions marked with this symbol are not respected or carried out correctly, it can result

in injury or damage to the unit and/or installations.

CIRCUTOR, SA reserves the right to modify features or the product manual without prior notification.

Instruction Manual

ReadWatt

CONTENTS

SAFETY PRECAUTIONS .........................................................................................................................................................3

DISCLAIMER ..........................................................................................................................................................................3

CONTENTS.............................................................................................................................................................................4

REVISION LOG .......................................................................................................................................................................5

SYMBOLS...............................................................................................................................................................................5

1. VERIFICATION UPON RECEPTION....................................................................................................................................6

2. PRODUCT DESCRIPTION .................................................................................................................................................6

3. DEVICE INSTALLATION....................................................................................................................................................7

3.1.- PRIOR RECOMMENDATIONS ....................................................................................................................................7

3.2.- INSTALLATION .........................................................................................................................................................8

3.3.- DEVICE TERMINALS...............................................................................................................................................10

3.4.- CONNECTION DIAGRAM..........................................................................................................................................11

3.4.1.- RS-485 CONNECTION ....................................................................................................................................11

3.4.2.- PULSE OUTPUT CONNECTION ...................................................................................................................... 12

4. OPERATION ................................................................................................................................................................... 13

4.1.- IMPULSE LED........................................................................................................................................................ 13

4.2.- IMPULSE OUTPUT ................................................................................................................................................. 13

4.3- COMMUNICATIONS ................................................................................................................................................. 14

4.3.1.- MODBUS PROTOCOL...................................................................................................................................... 14

4.3.2.- READ COMMANDS ........................................................................................................................................ 14

4.3.3.- WRITE COMMANDS....................................................................................................................................... 15

4.3.4.- MODBUS VARIABLES .................................................................................................................................... 15

4.3.5.- SPECIAL BROADCAST COMMAND................................................................................................................. 16

5. TECHNICAL FEATURES..................................................................................................................................................18

6. MAINTENANCE AND TECHNICAL SERVICE .................................................................................................................. 20

7. GUARANTEE.................................................................................................................................................................. 20

8. CE CERTIFICATE ............................................................................................................................................................ 21

ReadWatt

Instruction Manual

REVISION LOG

Table 1: Revision log.

Date Revision Description

03/14 M018B01-03-14A Initial Version

04/14 M018B01-03-14B Changes in the following sections:

3.4,- 4.3.4 - 5

06/14 M018B01-03-14C Changes in the following sections:

4.3.4

10/18 M018B01-03-18A Changes in the following sections:

1.- 8.

01/22 M018B01-03-22A Changes in the following sections:

3.3.- 4.3.4.- 4.3.5.

Note: The images of the devices are solely for the purpose of illustration and may differ from the orig-

inal device.

SYMBOLS

Table 2: Symbols

Symbol Description

In compliance with the relevant European directive.

Device covered by European directive 2012/19/EC. At the end of its useful life, do not leave the

unit in a household waste container. Follow local regulations on electronic equipment recycling.

DC current

~AC current

Instruction Manual

ReadWatt

1.- VERIFICATION UPON RECEPTION

Check the following points when you receive the device:

a) The device meets the specifications described in your order.

b) The device has not suffered any damage during transport.

c) Perform an external visual inspection of the device prior to switching it on.

d) Check that it has been delivered with the following:

- A Velcro strap to attach the device to the energy meter with impulse emitter,

- A connection cable,

- An installation guide.

If any problem is noticed upon reception, immediately contact the transport com-

pany and/or CIRCUTOR's after-sales service.

2.- PRODUCT DESCRIPTION

ReadWatt is an impulse sensor that can be attached to an energy meter verification impulse emitter

so that, through a MODBUS RTU protocol, there is an energy totaliser with the same accuracy as the

meter itself, but without physical access being necessary.

The unit features:

- 1 impulse indicator LED.

- 1 impulse output.

- RS-232 communications with MODBUS RTU protocol.

- RS-485 communications with MODBUS RTU protocol.

ReadWatt

Instruction Manual

3.- DEVICE INSTALLATION

3.1.- PRIOR RECOMMENDATIONS

In order to use the device safely, it is critical that individuals who handle it follow the

safety measures set out in the standards of the country where it is being used, use the

necessary personal protective equipment, and pay attention to the various warnings

indicated in this instruction manual.

The ReadWatt device must be installed by authorised and qualified staff.

The power supply plug must be disconnected before handling, altering the connections or replacing

the device. It is dangerous to handle the device while it is powered.

Also, it is critical to keep the cables in perfect condition in order to avoid accidents, personal injury and

damage to installations.

The manufacturer of the device is not responsible for any damage resulting from failure by the user

or installer to heed the warnings and/or recommendations set out in this manual, nor for damage

resulting from the use of non-original products or accessories or those made by other manufacturers.

If an anomaly or malfunction is detected in the device, do not use it to take any measurements.

Inspect the work area before taking any measurements. Do not take measurements in dangerous ar-

eas or where there is a risk of explosion.

Disconnect the device from the power supply (device and measuring system power

supply) before maintaining, repairing or handling the unit's connections.

Please contact the after-sales service if you suspect that there is an operational fault

in the device.

The installation where the device is connected must have an earthing and the DC ripple

voltage of the power supply cannot exceed 10%.

Instruction Manual

ReadWatt

3.2.- INSTALLATION

The device is installed on the energy meter.

The first step for installing ReadWatt is to separate the two parts of the Velcro strap.Take one of them,

remove the protective paper and stick the adhesive part of the Velcro strap to the rear of the device (

Figure 1).

Figure 1: Stick part of the Velcro strap to the rear of the READWATT.

Remove the protective paper from the other part of the Velcro strap and stick the adhesive part to the

optical port of the billing meter (Figure 2).

Figure 2: Stick a part of the Velcro strap to the optical port of the meter.

ReadWatt

Instruction Manual

Now simply place the ReadWatt on the energy meter's Velcro strap (Figure 3).

Figure 3: ReadWatt installed.

Finally, connect the cable delivered with the device to the ReadWatt's RJ45 connector.

Figure 4: Cable connection.

Instruction Manual

ReadWatt

3.3.- DEVICE TERMINALS

The device has a RJ45 connector with the following list of terminals (Table 3):

Table 3:List of ReadWatt terminals.

Terminal Description Wire color

1 GND, Auxiliary power supply. Brown

2 Rx, RS-232 Blue

3Tx, RS-232 Yellow

4 A(+), RS-485 Green

5 B(-), RS-485 Gray

6 GND, Pulse output Orange

7Pulse output Black

8Vdc, Auxiliary power supply. Red

Figure 5: ReadWatt RJ45 Connector.

Note: The device has a auxiliary power supply included:

Table 4:List of ReadWatt terminals.

Description Wire color

Auxiliary power supply + Black with solid gray line

Auxiliary power supply - Black

ReadWatt

Instruction Manual

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