DDSU666-H Smart Power Sensor Quick Guide

DDSU666-H Smart Power Sensor
Quick Guide
Issue: 01
Date: 2018-05-18


Copyright © Huawei Technologies Co., Ltd. 2018. All rights reserved.

1 Overview
Model Naming Conventions

DDSU666-H




Port Definition

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

Current Transformer(CT): 100 A/40 mA




1
2 Installing the DDSU666-H

Install the instrument on
the standard din rail of
DIN35mm.


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.



3 Installing the DDSU666-H Cable
Prepare cables

Cable DDSU666-H Type Conductor Cross- Outer Source
sectional Area Diameter
Range


Two-core (L
AC power L-3 and N) Prepared by
4-6 mm2 10-21 mm
cable outdoor the customer
copper cable
N-4

I*-5 N/A N/A N/A Manufact-
CT cable
I-6 N/A N/A N/A urer

RS485A-24 Two-core
outdoor Manufact-
Comm. cable 0.25-1 mm2 4-11 mm
shielded urer
RS485B-25 twisted pair




2
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.




3
4 User Interface
Display (Auto loop)

Auto loop Switch time = 5s.
Descriptio
No. Display interface Description No. Display interface
n

Exp. active
Imp. active
1 2 energy=1.0
energy=1.2kWh
0kWh

active Voltage
3 4
power=1.1kW =220.0V

Current Freq.=50.00
5 6
=5.000A Hz




Display (Change By Key “ ”)

No. Display interface Description No. Display interface Description

Comb. active Imp. active
1 energy=0.20k 2 energy=1.2k
Wh Wh

None parity,
Exp. active
1 stop bit,
3 energy=1.00k 4
baud=9600b
Wh
ps

Comm.Add = Voltage=220
5 6
11 .0V

active
Current
7 8 power=1.1k
=5.000A
W

Power Factor Freq.=50.00
9 10
=1.000 Hz


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




4
Setup
The Power Sensor can set up the communication address 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.




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5 Troubleshooting
Fault phenomenon Factor analysis Elimination method

1. If the wiring mode is incorrect,
please connect based on the
1. Incorrect wiring mode; correct wiring mode (see the
No display after the
2. Abnormal voltage supplied for wiring diagram).
instrument being
the instrument; 2. If the supplied voltage is
powered on
abnormal, please supply the
voltage on the instrument
specification.

1. If any problems for the
1. The RS485 communication communication cable, please
cable is disconnected, short change the cable.
circuit or reversely connected. 2. Set the address, baud rate,
Abnormal RS485
2. The address, baud rate, data data bit and parity bit of the
communication
bit and parity bit of the instrument to be the same as
instrument is not in accordance the host computer through
with the host computer; buttons and so as the
“parameter setting”.

1. Wrong wiring, please check
whether the corresponding
phase sequence of voltage
and current is correct.
For wrong wiring, please connect
Power metering 2. Check whether the high & low
based on the correct wiring mode
inaccuracy end of current transformer inlet
(see Connecting Diagram).
is reversely connected. Please
observe the power, to be
abnormal if any negative
values.

6 Verifying the Installation
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.


7 Powering On the System
For details, see the other description.




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Huawei Technologies Co., Ltd.
Huawei Industrial Base, Bantian, Longgang
Shenzhen 518129 People's Republic of China
www.huawei.com


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