Schneider Electric iEM2050 User Manual

iEM2050 Series Single Phase Energy Meter

User Manual

PHA6516400-04 03/2021

www.se.com

Legal Information

The Schneider Electric brand and any trademarks of Schneider Electric SE and its subsidiaries referred to in this guide are the property of Schneider Electric SE or its subsidiaries. All other brands may be trademarks of their respective owners.

This guide and its content are protected under applicable copyright laws and furnished for informational use only. No part of this guide may be reproduced or transmitted in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), for any purpose, without the prior written permission of Schneider Electric.

Schneider Electric does not grant any right or license for commercial use of the guide or its content, except for a non-exclusive and personal license to consult it on an "as is" basis. Schneider Electric products and equipment should be installed, operated, serviced, and maintained only by qualified personnel.

As standards, specifications, and designs change from time to time, information contained in this guide may be subject to change without notice.

To the extent permitted by applicable law, no responsibility or liability is assumed by Schneider Electric and its subsidiaries for any errors or omissions in the informational content of this material or consequences arising out of or resulting from the use of the information contained herein.

Safety information

Important information

Read these instructions carefully and look at the equipment to become familiar with the device before trying to install, operate, service, or maintain it. The following special messages may appear throughout this manual or on the equipment to warn of potential hazards or to call attention to information that clarifies or simplifies a procedure.

The addition of either symbol to a “Danger” or “Warning” safety label indicates that an electrical hazard exists which will result in personal injury if the instructions are not followed.

This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that accompany this symbol to avoid possible injury or death.

iEM2050 Series Single Phase Energy Meter

DANGER

DANGER indicates a hazardous situation which, if not avoided, will result in

death or serious injury.

Failure to follow these instructions will result in death or serious injury.

WARNING

WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

CAUTION indicates a hazardous situation which, if not avoided, could result in

minor or moderate injury.

NOTICE

NOTICE is used to address practices not related to physical injury.

Please note

Electrical equipment should be installed, operated, serviced and maintained only by qualified personnel. No responsibility is assumed by Schneider Electric for any consequences arising out of the use of this material. A qualified person is one who has skills and knowledge related to the construction, installation, and operation of electrical equipment and has received safety training to recognize and avoid the hazards involved.

PHA6516400-04 3

iEM2050 Series Single Phase Energy Meter

About this manual

This manual discusses features of the iEM2050 series single phase energy meter and provides installation and configuration instructions.

Throughout the manual, the term “meter” / device” / “equipment” / “product” refers to all models of the iEM2050. All differences between the models, such as a feature specific to one model, are indicated with the appropriate model number or description.

This manual assumes you have an understanding of single phase energy meters and are familiar with the equipment and power system in which your meter is installed.

This manual does not provide configuration information for advanced features where an expert user would perform advanced configuration. It also does not include instructions on how to incorporate meter data or perform meter configuration using energy management systems or software, other than Modbus tool.

Please contact your local Schneider Electric representative to learn what additional training opportunities are available regarding iEM2050 series meter.

Make sure you are using the most up-to-date version of your device’s firmware in order to access the latest features.

The most up-to-date documentation about your device is available for download from www.se.com.

Scan the book QR code below to access documentation related to the iEM2050 series meter.

Schneider Electric Download Center

Related documents

Document Number

iEM2050 series installation sheet PHA6516600

4 PHA6516400-04

Table of Contents

Safety precautions ......................................................................................7

Introduction ..................................................................................................8

Meter overview...........................................................................................8

Meter Features...........................................................................................8

Feature summary .......................................................................................8

Meter configuration.....................................................................................8

Hardware references..................................................................................9

iEM2050 meter models ...............................................................................9

DIN mount energy meter .............................................................................9

Supplemental information..........................................................................10

Meter wiring .............................................................................................10

Display and meter setup .......................................................................... 11

Display overview ...................................................................................... 11

Button functions .......................................................................................12

Display pages ..........................................................................................12

Scrolling function ...................................................................................... 13

Setting up backlight ..................................................................................14

Resetting day counter ...............................................................................14

Setting up pulse output rate.......................................................................14

Setting up combination code ..................................................................... 15

Setting up Modbus ID................................................................................15

Setting up baud rate..................................................................................16

Setting up parity .......................................................................................16

Resetting power down counter................................................................... 16

Setting up password .................................................................................17

iEM2050 Series Single Phase Energy Meter

Setting up Scrolling time......................................................................14

Setting up registers .............................................................................14

Communication via Modbus.................................................................... 18

Communication through Modbus output .....................................................18

System ..............................................................................................19

Meter setup and status........................................................................ 19

Command interface.............................................................................19

Display...............................................................................................19

Communication ..................................................................................20

Energy pulse output ............................................................................20

Energy settings...................................................................................20

Meter data..........................................................................................20

Command list ...........................................................................................22

Tariff ..................................................................................................22

Pulse output ....................................................................................... 22

Reset partial energy counters ..............................................................22

Combined code ..................................................................................22

LCD cycle time ...................................................................................23

Communication ..................................................................................23

Maintenance and upgrades.....................................................................24

PHA6516400-04 5

iEM2050 Series Single Phase Energy Meter

Maintenance overview ..............................................................................24

Troubleshooting .......................................................................................24

Display errors........................................................................................... 24

Technical assistance.................................................................................24

Meter specifications..................................................................................25

China Standard Compliance ...................................................................27

6 PHA6516400-04

Safety precautions iEM2050 Series Single Phase Energy Meter

Safety precautions

Installation, wiring, testing and service must be performed in accordance with all local and national electrical codes.

DANGER

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

• Apply appropriate Personal Protective Equipment (PPE) and follow safe electrical work practices. See NFPA 70E, CSA Z462 or other local standards.

• Turn off all power supplying this device and the equipment in which it is installed before working on or in the equipment.

• Always use a properly rated voltage sensing device to confirm that all power is off.

• Do not exceed the maximum ratings of this device.

Failure to follow these instructions will result in death or serious injury.

WARNING

UNINTENDED OPERATION

Do not use this device for critical control or protection of persons, animals, property or equipment.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

WARNING

INACCURATE DATA RESULTS

• Do not rely solely on data displayed on the display or in software to determine if this device is functioning correctly or complying with all applicable standards.

• Do not use data displayed on the display or in software as a substitute for proper workplace practices or equipment maintenance.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

PHA6516400-04 7

iEM2050 Series Single Phase Energy Meter Introduction

Introduction

Meter overview

The iEM2050 series meter is a single phase meter which measures the forward and reverse energy.

All meters in the iEM2050 series range comply with Class 1 or Class B accuracy standards and feature high quality, reliability and affordability in a compact and easy to install format.

Meter Features

The key features of iEM2050 series meter are listed below:

• Measurement of active and reactive energy,

• 2 tariffs configured through Modbus communication,

• Pulse outputs,

• LCD display (current, voltage, power and energy measurements, and basic configuration),

• Communication via Modbus.

For applications, feature details and complete specifications of the iEM2050 series meters, see the iEM2050 series technical datasheet at www.se.com.

Feature summary

Parameter iEM2050 iEM2055

4 quadrant energy measurements

Power:

• Active power (kW)

• Apparent power (kVA)

• Reactive power (kVAR)

Current

Voltage

Frequency

Power factor

2 tariffs configured through Modbus communication

Pulse outputs

Communication RS-485 Modbus RTU RS-485 Modbus RTU

MID compliant

Class 1 as per IEC 62052-11 and IEC 62053-21

Class B as per EN 50470-1/3

√ √

–

√ √

–

√

Meter configuration

Meter configuration can be performed through the display or through communication.

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Hardware references iEM2050 Series Single Phase Energy Meter

Hardware references

iEM2050 meter models

The iEM2050 series meter is available in one physical form factor and two different variants.

Meter models

Model Commercial reference Description

iEM2050 A9MEM2050 Class 1 accuracy as per IEC 62052-11 and IEC 62053-21

iEM2055 A9MEM2055 Class 1 accuracy as per IEC 62052-11 and IEC 62053-21

Class B as per EN 50470-1/3

MID compliance

DIN mount energy meter

PHA6516400-04 9

Neutral in (4) and Neutral out (6)

Pulse output (20 and 21)

C Button

LCD display

Modbus communication (23 and 24)

Line in (1) and Line out (3)

Energy flow LED indicator

+ 19 hidden pages