Huawei DTSU666-HW/YDS60-80 User Manual (English)

Questions and Answers:

J
Justin WoodsAug 10, 2025
Why is my Huawei Security Sensor metering inaccurately?
- S
  Steven BlanchardAug 10, 2025
  Inaccurate metering in your Huawei Security Sensor can stem from a couple of issues. First, the cable connections may be incorrect, so verify that the phase sequence of voltage and current is correct, referring to the wiring diagrams. Second, the high and low ends of the current transformer inlet might be reversely connected. If the values Pa, Pb, and Pc are negative, you should change the cable connection for the current transformer to ensure correct connection.
M
michael51Aug 19, 2025
What to do if my Huawei Security Sensors have no display after power-on?
- G
  gloria40Aug 19, 2025
  If your Huawei Security Sensor shows no display after powering on, the issue might be related to the cable connection or the voltage supply. Ensure the cables are correctly connected according to the wiring diagrams. Also, check that the voltage supplied matches the specifications required for the sensor.
B
Benjamin SmithAug 29, 2025
How to fix abnormal RS485 communication in Huawei Security Sensors?
- J
  Jessica FrazierAug 29, 2025
  Abnormal RS485 communication in Huawei Security Sensors can be due to several reasons: * The RS485 communication cable might be disconnected, short-circuited, or reversely connected. If the cable is faulty, replace it. * The communication address, baud rate, data bit, and parity bit of the meter may not match those of the inverter. Correct this by setting these parameters to match those of the inverter using the buttons on the device.

Huawei DTSU666-HW/YDS60-80 Specifications

General

Model	DTSU666-HW/YDS60-80
Manufacturer	Huawei
Communication	RS485
Protection Level	IP20
Mounting	DIN Rail
Current	5A
Rated Secondary Current	5A
Frequency	50/60 Hz
Communication Protocol	Modbus
Operating Temperature	-25°C to +70°C
Storage Temperature	-40°C to +70°C

Summary

Overview of DTSU666-HW Smart Power Sensor

DTSU666-HW Dimensions and Physical Specifications

Provides detailed dimensions and physical specifications for the DTSU666-HW Smart Power Sensor.

DTSU666-HW Front Panel and Nameplate Appearance

Details the appearance and specifications shown on the front panel and nameplate of the DTSU666-HW.

Key Technical Specifications for DTSU666-HW

Lists crucial technical specifications including voltage, current range, accuracy, and certifications.

DTSU666-HW Port Definitions and Connections

Explains the function and connection of various input and output ports on the DTSU666-HW.

Installing the DTSU666-HW Smart Power Sensor

Preparing Cables for DTSU666-HW Installation

Details cable types, conductor specifications, and sources required for installing the DTSU666-HW.

Installing Cables for DTSU666-HW

DTSU666-HW Wiring Scenarios and Modes

Covers different wiring scenarios and modes based on current and line voltage for the DTSU666-HW.

DTSU666-HW Direct Connection Wiring (Current ≤ 80 A)

Illustrates wiring for direct connection scenarios using SmartLogger or Smart Dongle networking.

DTSU666-HW Current Transformer Wiring (Current > 80 A)

Provides wiring diagrams for connection using current transformers with voltage direct connection.

DTSU666-HW CT and Potential Transformer Wiring (> 500 V)

Wiring diagrams for connecting the DTSU666-HW using current and potential transformers.

DTSU666-HW Display and Parameter Settings

DTSU666-HW Display Information and Meanings

Explains the various display items shown on the DTSU666-HW meter and their interpretations.

DTSU666-HW Parameter Settings and Value Ranges

Details the available parameters for DTSU666-HW configuration and their corresponding value ranges.

DTSU666-HW Parameter Setting Operations and Password

Provides operational steps for setting DTSU666-HW parameters and modifying the user password.

Troubleshooting DTSU666-HW Issues

DTSU666-HW Customer Service Contact Information

Related product manuals

Huawei DTSU666-HW/YD Series

15 pages

Huawei DTSU666-FE