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DDSU666-H Smart Power Sensor
User Manual

About This Document

Issue 01 (2018-05-18)

Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd.

iii

Symbol

Description

Calls attention to important information, best practices
and tips.

NOTE is used to address information not related to
personal injury, equipment damage, and environment
deterioration.

Change History

Changes between document issues are cumulative. The latest document issue contains all
updates made in previous issues.

Issue 01 (2018-05-18)

This issue is the first official release.

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Summary of Contents for DDSU666-H

Page 1: ...DDSU666 H Smart Power Sensor User Manual Issue 01 Date 2018 05 18 HUAWEI TECHNOLOGIES CO LTD ...

Page 2: ... Huawei and the customer All or part of the products services and features described in this document may not be within the purchase scope or the usage scope Unless otherwise specified in the contract all statements information and recommendations in this document are provided AS IS without warranties guarantees or representations of any kind either express or implied The information in this docum...

Page 3: ...ance engineers Symbol Conventions The symbols that may be found in this document are defined as follows Symbol Description Indicates an imminently hazardous situation which if not avoided will result in death or serious injury Indicates a potentially hazardous situation which if not avoided could result in death or serious injury Indicates a potentially hazardous situation which if not avoided may...

Page 4: ...on Calls attention to important information best practices and tips NOTE is used to address information not related to personal injury equipment damage and environment deterioration Change History Changes between document issues are cumulative The latest document issue contains all updates made in previous issues Issue 01 2018 05 18 This issue is the first official release ...

Page 5: ...cenarios 9 2 4 Model Naming Conventions 9 2 5 Product Structure 10 3 System Maintenance 11 3 1 Troubleshooting 11 A Technical Specifications 13 A 1 Environmental Specifications 13 A 2 Main technical performance and parameter 13 A 2 1 Electrical parameter 13 A 2 2 Percentage error 13 A 2 3 Start 14 A 2 4 Defluction 14 A 2 5 Other technical parameters 14 A 3 EMC Specifications 15 A 4 Structure Speci...

Page 6: ...supplements to local laws and regulations Do not operate the product or handle cables during thunderstorms Before operating the product remove any conductors such as jewelry or watches Use insulated tools during operations Bolts should be tightened with a torque wrench and marked using red or blue color Installation personnel should mark tightened bolts in blue Quality inspection personnel should ...

Page 7: ...h the safety specifications about the electrical system Operation personnel should understand the composition and working principles of the grid tied PV power system and local regulations Operation personnel must wear proper personal protective equipment PPE Protect Labels Do not scrawl or damage any warning labels on the DDSU666 H because these labels contain important information about safe oper...

Page 8: ...he device Maintenance and Replacement High voltage may cause an electric shock which results in serious injury death or serious property damage from the DDSU666 H in operation Therefore before maintenance power off the DDSU666 H and strictly comply with the safety precautions in this document and associated documents to operate the DDSU666 H Maintain the DDSU666 H with sufficient knowledge of this...

Page 9: ...o the measurement for electrical quantity including voltage current power frequency power factor active energy etc in the electrical circuit It can realize networking with the external device through RS485 communication interface Adopting the standard DIN35mm din rail mounting structural module design it is characterized with small volume easy installation and networking etc This performance index...

Page 10: ...rt the voltage and current signal to be the signal that can be identified by MCU through the sampling circuit MCU will calculate and convert it into energy power power factor and other electrical quantity by calculating the signals in the sampling circuit transferring to users through communication and meanwhile save the data in the storage circuit Please see the conceptual diagram of the Sensor a...

Page 11: ...ectrical parameters including power voltage current frequency power factor etc Display function The instrument adopts field LCD design characterized with display function for electrical parameters and energy data Please see LCD display in Figure 2 3 Liquid crystal display The display bit of energy measurement value can be six bits with display range from 0 to 999999kWh Figure 2 3 Liquid crystal di...

Page 12: ...I 5 000A 6 Frequency F 50 00Hz Button display The instrument has button display and backlight function please see button displayed items in Table 2 2 Button displayed items Table 2 2 Button displayed items No Content Description 1 Current combined active energy 0 20kWh 2 Current positive active energy Imp 1 20kWh 3 Current reverse active energy Exp 1 00kWh 4 n 1 data format to be eight bits none p...

Page 13: ...button 3s the sensor will automatically enter into the communication address setting interface with cyclic display for setting display interface of baud rate and communication address Please press the button when required for baud rate or communication address settings it will exit to communication address and baud rate settings without button operation for twenty seconds The details are as follow...

Page 14: ...V100 issued on January 29th 2018 2 3 Application Scenarios Scenario 1 The sensor is used to realize power restriction of the power grid with charge and discharge control towards energy storage in the household inverter scheme which is the core component for household energy management It adopts RS485 communication which can realize the electrical quantity measurement energy metering function and i...

Page 15: ...ecification Model No Accuracy grade Reference d voltage Current specification Collector constant Type DDSU666 H Active Class 1 230 V 100 A 40 mA 800 imp kWh Via transformer 2 5 Product Structure Outline dimension 36mm x 98mm x 66mm Din rail mounting dimension 35mm for the outline and installation dimension please see Figure 2 7 as below Figure 2 7 Product dimensions ...

Page 16: ... mode is incorrect please connect based on the correct wiring mode see the wiring diagram 2 If the supplied voltage is abnormal please supply the voltage on the instrument specification Abnormal RS485 communication 1 The RS485 communication cable is disconnected short circuit or reversely connected 2 The address baud rate data bit and parity bit of the instrument is not in accordance with the host...

Page 17: ...e check whether the corresponding phase sequence of voltage and current is correct 2 Check whether the high low end of current transformer inlet is reversely connected Please observe the power of Pa Pb Pc to be abnormal if any negative values If the wiring mode is incorrect please connect based on the correct wiring mode see the wiring diagram Contact the installation vendor if all failure analysi...

Page 18: ... range 35º C to 70º C Relative humidity Annual average 75 RH Atmospheric pressure 86 106 kPa A 2 Main technical performance and parameter A 2 1 Electrical parameter Regulated working voltage range 176 288 VAC Extended working voltage range 0 7 1 3 Un Working frequency range 45 65 Hz A 2 2 Percentage error The percentage error of the sensor cannot exceed the following corresponding limited value Cu...

Page 19: ... 1 0 0 8C 1 0 When users has special requirement 0 25L 3 5 0 2Ⅰb Ⅰ Ⅰmax 0 1Ⅰn Ⅰ Ⅰmax 0 5C 2 5 A 2 3 Start Under the referenced voltage and Table A 1 the sensor starts and continuously metering the electrical energy Sensor Energy meter grade Power factor Class 1 Direct connect 0 004Ib 1 Via transformer 0 002Ib A 2 4 Defluction The sensor shall have good anti creeping logic when the voltage loop is ...

Page 20: ...6 1 2013 EN 61326 2 1 2013 EN61000 3 2 2005 A2 2009 EN61000 3 3 2008 A 4 Structure Specifications Item Specifications Installation mode Directly stuck the sensor on the din rail and finally install it on the power distribution box 1 When installing please firstly stuck one side of the card slot and then forcibly stuck it on the din rail 2 When disassembling please use a screwdriver to forcibly hol...

Page 21: ...DDSU666 H Smart Power Sensor User Manual A Technical Specifications Issue 01 2018 05 18 Huawei Proprietary and Confidential Copyright Huawei Technologies Co Ltd 16 A 5 Wiring terminal instruction ...

Page 22: ...yright Huawei Technologies Co Ltd 17 B Acronyms and Abbreviations B D DC direct current E EFT electrical fast transient EMI electromagnetic interference EMS electromagnetic susceptibility ESD electrostatic discharge M MPPT maximum power point tracking P PLC power line communication R RE radiated emission RS radiated susceptibility ...

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