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LEGRAND EMDX3 User Manual

LEGRAND EMDX3
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LE11297BB - 12/20 -01 IM
EMDX
3
Three-phase
energy meter
• Manuel d'utilisation • User manual
4 120 90 - 4 120 91
4 120 92 - 4 120 93
®
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LEGRAND EMDX3 Specifications

General IconGeneral
Product CategoryEnergy Meter
Frequency50/60 Hz
MountingDIN Rail
DisplayLCD
Accuracy ClassClass 1
CommunicationModbus RTU
Protection DegreeIP20
Rated Voltage230V AC
Current5 A
Operating Temperature-10 to 55 °C
Storage Temperature-40...+70 °C
Dimensions90mm x 70mm x 65mm

Summary

Safety and Warnings

Risk of Electrocution, Burns, or Explosion

Details hazards associated with electrical shock, burns, or explosions.

Risk of Device Damage

Outlines risks of device damage due to improper voltage or frequency.

Preliminary Operations

Package and Product Inspection

Steps to verify package condition and product compliance upon receipt.

Product Presentation

Device Components Overview

Description of the energy meter's physical parts and their functions.

MID Label Information

Details regarding the MID label for traceability and certification.

Installation and Connections

Installation Recommendations

Advice for avoiding electromagnetic interference during installation.

Terminal Connection Guide

Information on connecting terminals and recommended torque values.

Auxiliary Power Supply

Details on the self-supplied auxiliary power.

Wiring Diagrams

General Wiring Diagram

Schematic for device connection.

Terminal Marking and Diagram Combination

Explanation of terminal markings and diagram correlation.

Double Tariff Wiring Diagram

Specific diagram for double tariff connections.

RS485 Wiring

RS485 Communication Wiring Diagram

Diagram illustrating RS485 wiring setup.

RS485 Modbus with Mini Web Server

RS485 Modbus Wiring Diagram

Diagram for Modbus communication with a Mini Web Server.

Display Navigation

Navigation Display Pages

How to navigate and interpret the device's graphic display.

Energy Readings

Total Energy Measurement

Displays for total active and reactive energy.

Partial Energy Measurement

Displays for partial active and reactive energy.

Pulse Counter Function

Information about the pulse counter.

Power Readings

Three-Phase Power Display

Readings for total three-phase power.

Phase Power Display

Readings for individual phase power.

Power Factor and Demand

Power factor and maximum demand information.

Voltages, Currents, and Phase Shifts

Voltage and Current Measurements

Displays for phase voltages and currents.

Phase Shift and Frequency

Readings for phase shifts and network frequency.

Hour Counter and Reset

Information on hour counters and reset function.

Configuration and Programming - Modbus

Modbus Communication Setup

Configuring address, parity, and communication speed.

Input and Pulse Settings

Configuring input modes, units, and pulse weight.

Configuration and Programming - Advanced

Pulse Output Configuration

Setting up pulse output type, weight, and duration.

Connection and Password Settings

Configuring connection type and changing the password.

Modifying Setup Data

Changing Address and Password

Procedure for modifying device address and password.

Parameter Modification Process

Modifiable Parameter Types

Overview of parameter types: choice and numeric entry.

Saving Configuration Changes

Steps to save modifications and proceed to next configuration.

Modbus Communication Protocol

Modbus Master/Slave Logic

Explanation of the communication structure.

RTU Mode and Syntax

Details on communication mode and syntax.

Communication Table Location

Information on where to find communication tables.

Modbus Communication Details

Communication Syntax and Timing

Requirements for valid messages and timing.

Communication Table Access

Information on accessing Modbus tables.

Technical Characteristics - General

Enclosure and Connection Specifications

Dimensions, connection types, and torque.

Protection, Weight, and Display Specs

Details on protection rating, weight, and display.

Auxiliary Supply and Measurement Network

Information on auxiliary power and measurement network.

Technical Characteristics - Electrical and Environmental

Digital Inputs and Pulse Output Specs

Specifications for digital inputs and pulse output.

Operating Conditions and Environments

Temperature, humidity, and environmental ratings.

CE Marking and Compliance

Compliance with EMC and low voltage directives.

EMC and Insulation Specifications

Electromagnetic compatibility and insulation data.

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