Huawei DDSU666-H User Manual

DDSU666-H Smart Power Sensor
User Manual
2 Overview
Issue 01 (2018-05-18)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
8
No.
Content
Description
7
Current I=5.000A
8
Active power P=1.100kW
9
Power factor Ft=1.000
10
Frequency F=50.00Hz
1.
Backlight closed without button operation for sixty seconds.
2.
The combined active energy default by the factory is equal to positive active energy.

Parameter setting function
The sensor can set the communication address and baud rate through buttons.
Setting method please see Figure 2-4: Long press the 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 follows:
Figure 2-4 Communication address and baud rate setting diagrammatic sketch

Communication function
The sensor is equipped with one RS485 communication interface, with baud rate changed
among 4800bps and 9600bps. The default baud rate is 9600bps with check bit and stop bit to
be n.1, communication address (see factory number or LCD display), support ModBus-RTU
protocol.

Huawei DDSU666-H Specifications

General

Max. Current	80 A
Frequency	50 Hz
Storage Temperature	-40°C to +70°C
Communication	RS485
Accuracy Class	Class 1
Protection Class	IP51
Rated Voltage	230V AC
Voltage Range	176 V - 276 V
Rated Current	5 A
Operating Temperature	-25 °C ~ +60 °C
Mounting	DIN rail
Type	Single phase energy meter