Eastron SDM72DM Manuel utilisateur

Eastron SDM72D-M User Manual V1.5

Zhejiang Eastron Electronic Co.,Ltd. Tel: 0086-573-83698881 83698882 Fax: 0086-573-83698883

Address: No.1369 Chengnan Road, Jiaxing, Zhejiang, 314001, China. Web: www.eastron.com.cn Email: sales@eastrongroup.com

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Measures active kWh & W.

Resettable partial energy

Bi-directional measurement IMP & EXP

Pulse Output

RS485 Modbus

Din rail mounting 35mm

Direct connection, up to 100A

Better than Class 1/ B accuracy

SDM72D-M

Three Phase Four Wire Energy Meter

User Manual V1.3

2017

Eastron SDM72D-M User Manual V1.5

Zhejiang Eastron Electronic Co.,Ltd. Tel: 0086-573-83698881 83698882 Fax: 0086-573-83698883

Address: No.1369 Chengnan Road, Jiaxing, Zhejiang, 314001, China. Web: www.eastron.com.cn Email: sales@eastrongroup.com

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Introduction

The SDM72D-M is digital three phase 4 wire energy meter with a white back-lighted LCD screen for perfect

reading. The unit measures and displays active energy (kWh) and power ( W), imported and exported. A resettable

partial energy is provided, so the user can easily check the energy imported and energy exported during a certain

period. SDM72D-M supports max.100A direct connection, saves the cost and avoid the trouble to connect

external CTs, giving the unit a cost-effective and east operation. Built-in interfaces provides pulse and RS485

Modbus RTU outputs. Configuration is password protected.

PART 1 Specification

General Specifications

Voltage AC (Un) 3x230(400)V

Voltage Range 80~120% Un

Base Current (Ib) 10A AC

Max. Current (Imax) 100A AC

Mini Current (Imin) 5% of Ib AC

Starting current 0.4% of Ib

Power consumption <2W/10VA

Frequency 50/60Hz

AC voltage withstand 4KV for 1 minute

Impulse voltage withstand 6KV-1.2uS wavform

Overcurrent withstand 30max 0I for 0.01s

Pulse output rate 1000imp/kWh (Pulse 2)

Display LCD with backlit

Max. Reading 999999.9kWh

Active energy Class 1 IEC62053-21

Class B EN50470-3

Unit Characteristics

The Unit can measure and display:

Power

Active energy imported and exported

Pulse output indicates real-time energy measurement. An RS485 output allows remote monitoring from another

display or a computer.

RS485 Serial –Modbus RTU

This unit uses an RS485 serial port with Modbus RTU protocol to provide a means of remotely monitoring and

controlling the Unit

Set-up screens are provided for setting up the RS485 port.

Eastron SDM72D-M User Manual V1.5

Zhejiang Eastron Electronic Co.,Ltd. Tel: 0086-573-83698881 83698882 Fax: 0086-573-83698883

Address: No.1369 Chengnan Road, Jiaxing, Zhejiang, 314001, China. Web: www.eastron.com.cn Email: sales@eastrongroup.com

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Pulse output

The unit provides pulse output for active kWh. The Pulse output is passive type.

The pulse out is fixed up with total kWh. The constant is 1000imp/kWh.

RS485 Output for Modbus RTU

For Modbus RTU, the following RS485 communication parameters can be configured from the Set-up menu:

Baud rate 1200,2400, 4800, 9600

Parity none (default)/odd/even

Stop bits 1 or 2

RS485 network address nnn – 3-digit number, 001 to 247

Modbus™ Word order Hi/Lo byte order is set automatically to normal or reverse. It cannot be configured

from the set-up menu.

Environment

Operating temperature -25℃to +55℃

Storage and transportation temperature -40℃to +70℃

Reference temperature 23℃±2℃

Relative humidity 0 to 95%, non-condensing

Altitude up to 3000m

Warm up time 10s

Installation category CAT III

Mechanical Environment M1

Electromagnetic environment E2

Degree of pollution 2

Mechanics

Din rail dimensions 72x100x66 (WxHxD) DIN 43880

Mounting DIN rail 35mm

Sealing IP51 (indoor)

Material self-extinguishing UL94V-0

PART 2 Operation

Initialization Display

When it is powered on, the meter will initialize and do self-checking.

Eastron SDM72D-M User Manual V1.5

Zhejiang Eastron Electronic Co.,Ltd. Tel: 0086-573-83698881 83698882 Fax: 0086-573-83698883

Address: No.1369 Chengnan Road, Jiaxing, Zhejiang, 314001, China. Web: www.eastron.com.cn Email: sales@eastrongroup.com

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Scroll display

Full Screen

Software Version

Pulse constant

Total active energy(kWh)

Total=Import+ Export

Max read: 999999.9 kWh

Buttons function

There are two buttons on the front panel.

>Scroll the display for data checking.

>Changing option at Set-up mode

>Exit the Set-up mode

>Set-up mode entry

>Confirmation

After initialization and self-checking program, the meter display the measured values. The default page is total

kWh. If the user wants to check other information, please press the scroll button on the front panel.

Eastron SDM72D-M User Manual V1.5

Zhejiang Eastron Electronic Co.,Ltd. Tel: 0086-573-83698881 83698882 Fax: 0086-573-83698883

Address: No.1369 Chengnan Road, Jiaxing, Zhejiang, 314001, China. Web: www.eastron.com.cn Email: sales@eastrongroup.com

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Total active energy(kWh)

Total=Import+ Export

import energy

export energy

Total partial energy(kWh)

Total=Import+ Export

Import partial energy

export partial energy

Total active power

Eastron SDM72D-M User Manual V1.5

Zhejiang Eastron Electronic Co.,Ltd. Tel: 0086-573-83698881 83698882 Fax: 0086-573-83698883

Address: No.1369 Chengnan Road, Jiaxing, Zhejiang, 314001, China. Web: www.eastron.com.cn Email: sales@eastrongroup.com

- 6 -

Import active power

Export active power

Pulse constant

Modbus Address

Baud Rate

Parity

Eastron SDM72D-M User Manual V1.5

Zhejiang Eastron Electronic Co.,Ltd. Tel: 0086-573-83698881 83698882 Fax: 0086-573-83698883

Address: No.1369 Chengnan Road, Jiaxing, Zhejiang, 314001, China. Web: www.eastron.com.cn Email: sales@eastrongroup.com

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Set-up Mode

To get into Set-up Mode, the user need press the “Enter” button for 3 seconds.

Page

Display

Descriptions

Password

To get into Set-up mode, it asks a password

confirmation. Default password: 1000

Use and to enter correct

password.

The entering information is wrong. The operation

fails.

Keep pressing for 3 seconds, the current

selection will flash, use and to change

the Modbus address. Options: 1~247

Keep press for 3s to confirm the selection.

Keep pressing for 3 seconds, the current

selection will flash, use and to change

the Baud rate. Options: 1.2k, 2.4k,4.8k,9.6k

( default )

Keep press for 3s to confirm the selection.

Keep pressing for 3 second, the current

selection will flash, use and to change

the Parity. Options: EVEN,ODD,NONE ( default )

Keep press for 3s to confirm the selection.

Use to select the Password option. Keep

pressing for 3 seconds, the current selection

Eastron SDM72D-M User Manual V1.5

Zhejiang Eastron Electronic Co.,Ltd. Tel: 0086-573-83698881 83698882 Fax: 0086-573-83698883

Address: No.1369 Chengnan Road, Jiaxing, Zhejiang, 314001, China. Web: www.eastron.com.cn Email: sales@eastrongroup.com

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will flash, use and to enter the new

password. The range is from 0001 to 9999.

Keep press for 3s to confirm the selection.

Keep pressing button to exit the set-up mold.

Wiring diagram

3 phase 4 wire

2 phase 3 wire

Eastron SDM72D-M User Manual V1.5

Zhejiang Eastron Electronic Co.,Ltd. Tel: 0086-573-83698881 83698882 Fax: 0086-573-83698883

Address: No.1369 Chengnan Road, Jiaxing, Zhejiang, 314001, China. Web: www.eastron.com.cn Email: sales@eastrongroup.com

- 9 -

Dimensions

Installation

Eastron SDM72D-M User Manual V1.5

Zhejiang Eastron Electronic Co.,Ltd. Tel: 0086-573-83698881 83698882 Fax: 0086-573-83698883

Address: No.1369 Chengnan Road, Jiaxing, Zhejiang, 314001, China. Web: www.eastron.com.cn Email: sales@eastrongroup.com

- 10 -

Input Registers

Holding Registers

PART 3 Modbus Protocol

Input registers are used to indicate the present values of the measured and calculated electrical quantities. Each

parameter is held in two consecutive 16 big register. The following table details the 3X register address, and the

values of the the address bytes within the message. A (*) in the column indicated the parameter is valid for the

particular wiring system, Any parameter with a cross (X) will return the value zero. Each parameter is held in the

3X registers. Modbus Protocol function code 04 is used to access all parameters.

For example, to request: Amps 1 Start address = 0006

No.of registers = 0002

Amps 2 Start address = 0008

No. Of register = 0002

Each request for data must be restricted to 30 parameters or less. Exceeding the 30 parameter limit will cause a

Modbus Protocol exception code to be returned.

Address

(Register)

Input Register Parameter

Modbus

Protocol Start

Address Hex

Description

Length

(bytes)

Data

Format

Units

Byte

30053

Total system power.

Float

30073

Total Import kWh

Float

kWh

30075

Total Export kWh.

Float

kWh

30343

Total kWh (1)

Float

kWh

30385

resettable total active energy (1)

Float

kWh

30389

resettable import active energy

Float

kWh

30391

resettable export active energy

Float

kWh

31281

Total import active power

Float

31283

Total export active power

Float

Notes:

1. Total kWh equals to Import + export.

Holding register are used to store and display instrument configuration settings. All holding registers not listed

in the table below should be considered as reserved for manufacturer use and no attempt should be made to

modify their values.

The holding register parameters may be viewed or changed using the Modbus Protocol. Each parameter is

held in two consecutive 4X registers. Modbus Protocol Function Code 03 is used to read the parameter and

Function code 10 is used to write. Write only to one parameter per massage.

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