EASTRON SDM230 Series Single Phase kWh Energy Meter User Manual

EASTRON SDM230 Series Single Phase kWh Energy Meter

Specifications

• Product Name: SDM230 Series
• Type: Single Phase Two Wires Multifunction Din Rail Meter
• Model: SDM230-Modbus, SDM230-Pulse, SDM230Mbus, SDM230-2T, SDM230M-DI
• Measurements: U, I, P, Q, S, PF, Hz, Dmd, kWh, kVArh, Import, Export
• Communication: RS485 Modbus or M-bus EN13757-3 (depending on model)
• Pulse Outputs: Pulse Output 1 (configurable), Pulse Output 2 (non-configurable)
• Multi Tariffs: Only available in SDM230-2T model

Product Usage Instructions

Installation

1. Read the safety instructions provided in the user manual carefully before installation.
2. Ensure that the power supply is turned off before proceeding with the installation.
3. Mount the SDM230 series meter on a DIN rail in a suitable location.
4. Connect the appropriate wires to the meter according to the electrical network configuration.
5. If using RS485 Modbus communication, connect the meter to the remote monitoring system using an RS485 cable.
6. If using M-bus communication, connect the meter to the remote monitoring system using an M-bus cable.

Configuration
The SDM230 series meter offers various configuration options depending on the model:

• For RS485 Modbus communication, use the provided set-up screens to configure the RS485 port.
• For the SDM230-Mbus model, use the provided set-up screens to configure the M-bus port.
• For the SDM230-2T model, set up the multi tariffs according to your requirements using the provided set-up screens.

Usage

The SDM230 series meter is designed to measure and display the characteristics of a single-phase two-wire network. It can be used for energy and power monitoring applications, as well as solar PV measurements. The meter supports bi-directional measurement, making it suitable for import and export energy monitoring.

Depending on the model, the meter can measure and display various parameters including voltage (U), current (I), power (P), reactive power (Q), apparent power (S), power factor (PF), frequency (Hz), demand (Dmd), energy consumption (kWh), and reactive energy consumption (kVArh).

Pulse Output
The meter provides two pulse outputs:

• Pulse Output 1: This output can be configured to generate pulses representing total/import/export kWh or kVArh. The pulse constant can be set to generate 1 pulse per 0.001/0.01/0.1/1 kWh/kVArh (default is 0.001 export kWh). The pulse width can be set to 200/100/60ms.
• Pulse Output 2: This output is non-configurable and fixed with active kWh (Imp). The constant is 1000imp/kWh.

Remote Communication

The meter supports remote communication with other AMR/SCADA systems:

• For RS485 Modbus communication, use the provided RS485 serial port with Modbus RTU protocol to remotely monitor and control the unit.
• For the SDM230-Mbus model, use the provided M-BUS serial port with M-BUS protocol to remotely monitor and control the unit.

Dual Source Measurement (Only for SDM230-2T)
The SDM230-2T model can measure energy from two different power supplies. For example, when the public grid is powered off and anelectric generator is on, the meter automatically switches to tariff 2 measurement.

Safety Instruction

The Installation instructions do not include a complete list of all safety measures necessary for operating the device. Special operating conditions may require additional measures. The installation instructions contain notes that must be observed for your personal safety to prevent property damage. Safety instructions in this document are highlighted with a warning triangle and are presented as follows depending on the level of risk.

• WARNING: The General warning symbol calls attention to possible risks of injury. Observe all the instructions listed under the symbol to prevent injuries or even death
• CAUTION: This additional symbol indicates any electrical danger that can result in serious injuries or death

Attention : Warns of an imminently dangerous situation that can result in property damage or environmental damage in the event of non-compliance

Introduction

This document provides operating, maintenance and installation instructions for the SDM230 series made by Eastron Electronic Co., Ltd. The SDM230 series measures and displays the characteristics of a single-phase two wires (1p2w) network. The SDM230 series covers 5 models:SDM230-Modbus,SDM230-Pulse,SDM230- Mbus, SDM230-2T and SDM230M-DI.
The bi-directional measurement makes the meter suitable for import and e xp o rt e n e rg y a n d p o w e r monitoring applications, and also perfect for solar PV measurements. With RS485 Modbus and M-bus port, the meter is easy to remotely communicate with other AMR/SCADA systems.

Model| Measurements| Communi- cation| Pulse Outputs| Multi Tariffs
---|---|---|---|---
__

SDM230-

Modbus

| __

U, I, P, Q, S, PF, Hz,

Dmd, kWh, kVArh, Import, Export

| __

RS485

Modbus

| 1:

configurable 2:

1000imp/kwh

| __

__

NO

__

SDM230-

Mbus

| __

U, I, P, Q, S, PF, Hz,

Dmd, kWh, kVArh, Import, Export

| __

M-bus EN13757-3

| 1:

configurable 2:

1000imp/kwh

| __

__

NO

__

SDM230-

Pulse

| __

U, I, P, Q, S, PF, Hz,

Dmd, kWh, kVArh, Import, Export

| __

NO

| 1:

configurable 2:

1000imp/kwh

| __

NO

__

SDM230- 2T

| __

U, I, P, Q, S, PF, Hz,

Dmd, kWh, kVArh, Import, Export

| __

RS485

Modbus

| 1:

configurable 2:

1000imp/kwh

| __

2 Tariffs (Dual source)

__

SDM230 M-DI

| __

U, I, P, Q, S, PF, Hz,

Dmd, kWh, kVArh, Import, Export

| __

RS485

Modbus

| __

NO

| __

NO

Key Characteristics

• Bi-directional measure and display
• Multi-function measurements
• Two pulse outputs
• RS485 Modbus / M-bus
• 100A direct connection
• Two module size (35mm)
• Password protected set-up
• Backlighted LCD
• 2 tariffs dual power source
• 2 Digital Inputs

Pulse Output

• The meter provides two pulse outputs. Both pulse outputs are passive type.
• Pulse output 1 can be set to generate pulses to represent total / import/export kWh or kVArh.
• The pulse constant can be set to generate 1 pulse per: 0.001/0.01/0.1/1kWh/kVArh (default is 0.001 export kWh). Pulse width: 200/100/60ms
• Pulse output 2 is non-configurable. It is fixed with active kWh (Imp). The constant is 1000imp/kWh.

RS485 Serial – Modbus RTU
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.

Mbus for SDM230-Mbus
This unit has an M-BUS serial port with M-BUS protocol to provide a means of remotely monitoring and controlling the unit. Set-up screens are provided for setting up the M-bus port.

Dual Source Measurement for SDM230-2T
This unit can measure energy from two different power supplies. For example, when the public grid is powered off and the electric generator is on, the meter switches to tariff 2 measurement automatically.
The meter can also be used as a tariff meter. The tariff is controlled by an external time relay.

Operation

LCD Display

Initialization Display

Scroll Display by Buttons:
After initialization and self-checking program, the meter displays the measured values. The default page is total kWh. If the user wants to check other information, he needs to press the scroll button on the front panel.
The display order by scroll button :

For SDM23 0-Modbus:
Total kWh→ Import kWh→Export kWh→ Resettable kWh→ Total kVArh→Import kVArh→ Export kVArh→Resettable kVArh → Max. Power Demand→ Voltage →Current→W→ VAr → VA→ Power Factor→Frequency →Pulse Constant→ Modbus ID
→ Baud Rate →Continuous Running Time Display No:1,4~7,10~24.

For SDM2 30-Pulse:
Total kWh→ Import kWh→Export kWh→ Resettable kWh→ total kVArh→Import kVArh→ Export kVArh→resettable kVArh → Max. Power Demand→ Voltage →Current→W VAr →VA→ Power Factor→Frequency →Pulse Constant Display No:1,4~7,10~21.

For SDM230-2T:
Total kWh→ T1 total kWh→ T2 total kWh→Import kWh→ Export kWh →resettable kWh→Total kVArh→T1 total kVArh→T2 total kVArh→Import kVArh→ Export kVArh→ resettable kVArh→Max. Power Demand→ Voltage → Current→W→ Var →VA→ Power Factor → Frequency → Pulse Constant → Modbus ID →Baud Rate → Continuous Running Time Display No: 1~24.

For SDM230-Mbus:
Total kWh→ Import kWh→Export kWh→ Resettable kWh→Total kVArh→Import kVArh→ Export kVArh→ Resettable kVArh→ Max. Power Demand→ Voltage → Current→W→ VAr →VA→ Power Factor → Frequency → Pulse Constant→ Mbus Primary Address→Mbus Secondary Address→ Baud Rate→Continuous Running Time

• Display No : 1,4~7,10~24.

For SDM230M-DI:
Total kWh→ Import kWh→Export kWh→ Resettable kWh → Total kVArh→Import kVArh→ Export kVArh→ Resettable kVArh→ Max. Power Demand → Voltage → Current → W → VAr → VA → Power Factor → Frequency → DI1 → DI2 → Modbus ID → Baud Rate → Continuous Running Time Display No:1,4~7,10~20,22~26. Scroll display by buttons:

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

SPECIFICATION

General Specifications

• Voltage AC (Un): 230V
• Voltage range: 176~276V AC
• Base current (Ib/Iref) Max. current (Imax): 10A
• Mini current (Imin): 100A(65A for ETL version) 0.5A
• Starting current: 0.4% of Ib/Iref
• Power consumption: ＜2W/10VA
• Frequency: 50Hz(for MID version) 50/60Hz ± 2% (for non-MID version)
• AC voltage withstand: 4KV for 1 min
• Impulse voltage withstand: 6KV-1.2uS waveform
• Over current withstand: 30Imax for 0.01s
• Pulse 1 output rate: configurable, default 1000i/kWh
• Pulse 2 output rate: non-configurable,1000i/kWh
• Display: LCD with backlit
• Max. reading: 999999.9kWh

Accuracy

• Voltage: 0.5% of range maximum
• Current: 0.5% of nominal
• Frequency: 0.2% of mid-frequency
• Active power: 1% of range maximum
• Reactive power Apparent power: 1% of range maximum
• Active energy:
  • Class 1 IEC62053-21
  • Class B EN50470-1/3
• Reactive energy: Class 2 IEC62053-23

Environment

• Operating temperature: -25 C to +55 C
• Storage/transportation temperature: 40 C to +70 C
• Reference temperature: 23 C ± 2 C
• Relative humidity: 0 to 95%, non-condensing
• Installation category: CAT III
• Mechanical environment: M1
• Electromagnetic environment: E2
• Degree of pollution: 2

Pulse Output

Not for SDM230M-DI
The pulse output 1 can be set to generate pulses to represent total kWh, total kVArh, import kWh, export kWh, import kVArh, and export kVArh.
Constant can be set to 1000/100/10/1 impulse per kWh or kVArh.Pulse width 200/100/60mS.

ATTENTION: Pulse output must be fed as shown in the wiring diagram on the left. Scrupulously respect polarities and the connection mode. Opto-coupler with potential-free SPST-NO Contact.

Contact range :5~27VDC
Max. current Input:27mA DC

Digital Inputs

For SDM230M-DI only
The meter is equipped with two digital inputs. An input signal is detected on a digital input if a voltage of at least 5V and a maximum of 24V DC@0.1W is applied.

RS485 Output for Modbus RTU
Not for SDM230-Pulse or SDM230-Mbus

The meter provides an RS485 port for remote communication.
Modbus RTU is the protocol applied. For Modbus RTU, the following RS485 communication parameters can be configured from the set-up menu.

• Baud rate: 1200, 2400, 4800, 9600, 19200, 38400 bps
• Parity: NONE/ODD/EVEN
• Stop bits: 1 or 2
• Modbus Address: 1 to 247

Mbus
For SDM230-Mbus only

The meter provides a Mbus Port for remote communication. the meter adopts EN13757-3 Mbus communication protocol.
The communication parameters can be configured via the set-up mode.

• Baudrate: 300,600,1200,2400,4800,9600 bps
• Parity: NONE/ODD/EVEN
• Stop bits: 1 or 2
• Primary address: 001~250
• Secondary address: 00000001~99999999

Mechanics

• Din r ail dimensions: 36x100x63 (WxHxD) Per DIN 43880
• Mounting: DIN rail 35mm
• Ingress protection: IP51 (indoor)
• Material: Self-extinguishing UL94V-0

DIMENSION

Installation and Sealing

Declaration of Conformity(for the MID-approved version meter only)

We Zhejiang Eastron Electronic Co., Ltd.
Declare under our sole responsibility as the manufacturer that the single- phase multi-function electrical energy meter “SDM230 Series” corresponds to the production model described in the EU-type examination certificate and to the requirements of the Directive 2014/32/EU EU type-examination certificate number 0120/SGS0206.Identification number of the NB0598

Wiring Diagram

SDM230-V1

SDM230-V2

Definitions of other terminals

Terminals Capacity

| COMM / Pulse / 2T| 0.5~1.5mm²
---|---|---
Load| 4~25mm²

Screw Torque

| COMM / Pulse / 2T| 0.2Nm
Load| 2.5Nm

FAQ

• Q: What are the available models of the SDM230 series?
• A: The SDM230 series includes the following models: SDM230-Modbus, SDM230-Pulse, SDM230Mbus, SDM230-2T, and SDM230M-DI.
• Q: What measurements can the SDM230 series display?
• A: The SDM230 series can display measurements such as voltage (U), current (I), power (P), reactive power (Q), apparent power (S), power factor (PF), frequency (Hz), demand (Dmd), energy consumption (kWh), and reactive energy consumption (kVArh).
• Q: Does the SDM230 series support pulse outputs?
• A: Yes, the SDM230 series provides two pulse outputs. Pulse Output 1 can be configured to generate pulses representing total/import/export kWh or kVArh, while Pulse Output 2 is fixed with active kWh (Imp) and has a constant of 1000imp/kWh.
• Q: How can I remotely monitor and control the SDM230 series meter?
• A: The SDM230 series supports remote communication. For RS485 Modbus communication, use the provided RS485 serial port with Modbus RTU protocol. For the SDM230-Mbus model, use the provided M-BUS serial port with M-BUS protocol.
• Q: Can the SDM230-2T model measure energy from two different power supplies?
• A: Yes, the SDM230-2T model can measure energy from two different power supplies. For example, when the public grid is powered off and an electric generator is on, the meter automatically switches to tariff 2 measurement.

Zhejiang Eastern Electronic Co., Ltd.
No 1369.Chengnan Rd. Jiaxing, Zhejiang, China

• Tel: 86 573 83698881/83698882
• Email: sales@eastrongroup.com
• Web: www.eastrongroup.com

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