Huawei DDSU666-H Manuel utilisateur

Issue: 01

Date: 2018-05-18

DDSU666-H Smart Power Sensor

Quick Guide

DDSU666-H

Model Naming Conventions

Port Definition

1Overview

Voltage Input: 230 V; CT Current Input: 40 mA

Current Transformer(CT): 100 A/40 mA

2Installing the DDSU666-H

Install the instrument to

the standard din rail

from the top to the

bottom, and then push

the instrument to the

din rail from the bottom

to the front part.

Install the instrument on

the standard din rail of

DIN35mm.

3Installing the DDSU666-H Cable

Prepare cables

Cable DDSU666-H Type Conductor Cross-

sectional Area

Range

Outer

Diameter Source

AC power

cable L-3 Two-core (L

and N)

outdoor

copper cable

4-6 mm210-21 mm

Prepared by

the customer

N-4

CT cable I*-5 N/A N/A N/A Manufact-

urer

I-6 N/A N/A N/A

Comm. cable RS485A-24 Two-core

outdoor

shielded

twisted pair

0.25-1 mm24-11 mm Manufact-

urer

RS485B-25

Connecting Diagram

1. Connect the L,N voltage lines to the 3, 4 terminals of the collector.

2. Connect current transformer outlets I*, I to terminals 5, 6 of the collector.

3. Connect RS485A and RS485B to the communication host.

4User Interface

Display (Auto loop)

No. Display interface Description No. Display interface Descriptio

1Imp. active

energy=1.2kWh 2Exp. active

energy=1.0

0kWh

3active

power=1.1kW 4Voltage

=220.0V

5Current

=5.000A 6Freq.=50.00

No. Display interface Description No. Display interface Description

1Comb. active

energy=0.20k

Wh 2Imp. active

energy=1.2k

3Exp. active

energy=1.00k

Wh 4

None parity,

1 stop bit,

baud=9600b

5Comm.Add =

11 6Voltage=220

.0V

7Current

=5.000A 8active

power=1.1k

9Power Factor

=1.000 10 Freq.=50.00

Display (Change By Key “ ”)

Auto loop Switch time = 5s.

Comb. active energy = Imp. active energy-Exp. active energy

Setup

The Power Sensor can set up the communicationaddress and the baud rate through the key :

Long press the button 3s, The Power Sensor automatically enters into the setting interface of

communication address, while the setting & display interface of baud rate and communication

address circularly displays. Please press the button once required settings for baud rate or

communication address, and it will exit the communication address and baud rate without button

operation for twenty seconds.

5Troubleshooting

Fault phenomenon Factor analysis Elimination method

No display after the

instrument being

powered on

1. Incorrect wiring mode;

2. Abnormal voltage supplied for

the instrument;

1. If the wiring 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 computer;

1. If any problems for the

communication cable, please

change the cable.

2. Set the address, baud rate,

data bit and parity bit of the

instrument to be the same as

the host computer through

buttons and so as the

“parameter setting”.

Power metering

inaccuracy

1. Wrong wiring, please 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, to be

abnormal if any negative

values.

For wrong wiring, please connect

based on the correct wiring mode

(see Connecting Diagram).

1. Check that all mounting brackets are securely installed and all screws are tightened.

2. Check that all cables are reliably connected with correct polarity and no short circuit.

For details, see the other description.

6Verifying the Installation

7Powering On the System

Huawei Technologies Co., Ltd.

Huawei Industrial Base, Bantian, Longgang

Shenzhen 518129 People's Republic of China

www.huawei.com

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