Huawei DTSU666-H User manual

DTSU666-H and DTSU666-H 250 A/50mA Smart

Power Sensor

Quick Guide

HUAWEI TECHNOLOGIES CO., LTD.

Issue: 03

Date: 2019-09-29

rights reserved.

1Overview

Differences between DTSU666-H and DTSU666-H 250 A/50 mA:

•Parameters on the panel

DTSU666-H DTSU666-H 250 A/50 mA

Appearance

Models

Smart Power Sensor dimensions

250 A CT dimensions

100 A CT dimensions

•DTSU666-H: with three 100 A/40 mA CT

•DTSU666-H 250 A/50 mA: with three 250 A/50 mA CT

Voltage Input: 3×230/400 V or 3×400 V

Current Transformer(CT): 100 A/40 mA or 250 A/50 mA;

Category DTSU666-H DTSU666-H 250 A/50 mA

Nominal voltage 230 V AC / 400 V AC 230 V AC / 400 V AC

Current Measurement range 0–100 A 0–250 A

Power grid system 3P4W 3P4W or 3P3W

•Nameplate

DTSU666-H DTSU666-H 250 A/50 mA

Appearance

Performance and Specification

Port Definition

2Installing the DTSU666-H and DTSU666-H 250 A/50 mA

3Installing the Cable

1. Install the smart power

sensor on the standard

din rail of DIN35mm

2. Install the Smart Power

Sensor 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.

Cable Port Type

Conductor

Cross-

sectional Area

Range

Outer

Diameter Source

AC power

cable

Ua-3 Four-core

outdoor

copper

cable

4-6 mm210-21

mm Prepared by

the customer

Ub-6

Uc-9

Un-10

CT cable

IA*-13 / / /

Manufacturer

IA-14 / / /

IB*-16 / / /

IB-17 / / /

IC*-19 / / /

IC-21 / / /

Comm.

cable RS485A-24 Two-core

outdoor

shielded

twisted pair

0.25-1 mm24-11 mm Manufacturer

RS485B-25

Prepare cables

1. Three phase four wire:

Connect the Ua, Ub, Uc,

Un voltage lines to the 3, 6,

9 and 10 terminals of the

collector. Connect current

transformer outlets IA*, IA,

IB*, IB, IC*, IC to terminals

13, 14, 16, 17, 19, 21 of

the collector.

2. Connect RS485A and

RS485B to the

communication host.

Wiring Diagram--Three Phase Four Wire

1. Three phase three wire：

Connect the Ua, Uc, Ub

voltage lines to the 3, 9 and

10 terminals of the

collector. Connect current

transformer outlets IA*, IA,

IB*, IB, IC*, IC to terminals

13, 14, 16, 17, 19, 21 of the

collector.

2. Connect RS485A and

RS485B to the

communication host.

Wiring Diagram--Three Phase Three Wire

Support model:

•DTSU666-H

•DTSU666-H 250 A/50 mA

Support model:

•DTSU666-H 250 A/50 mA

Operating voltage: 0.7–1.3 Un

NOTE

A fuse and a thermistor are

connected to each phase of Ua,

Ub, and Uc inside the power

meter to prevent damage caused

by external short circuits. Ua, Ub,

and Uc do not need to be

protected by external fuses.

NOTE

The CT direction must be consistent with the arrow direction as

shown in the preceding figure.

NOTE

The CT direction must be consistent with the arrow direction as

shown in the preceding figure.

Display (Auto loop)

No. Display interface Description No. Display interface Description

1Imp. active

energy =

10000.0 kWh 2Exp. active

energy

= 2345.67 kWh

3Active power

= 3.291 kW 4Phase A

voltage

= 220.0 V

5Phase B voltage

= 220.1 V 6Phase C

voltage

= 220.20 V

7Phase A current

= 5.000 A 8Phase B

current

= 5.001 A

9Phase C current

= 5.002 A 10 Frequency

freq = 50.00 Hz

4User Interface

If no button is pressed for 60 seconds, the backlight turns off. Auto loop Switch time = 5s.

No. Display interface Description No. Display interface Description

1Comb. active

energy

= 7654.33 kWh 2Imp. active

energy

= 10000.0 kWh

3Exp. active

energy

= 2345.67 kWh 4

None parity,

1 stop bit,

Baud = 9600

bps

001 represents

address 6Phase A

voltage

= 220.0 V

7Phase B

voltage

= 220.1 V 8Phase C

voltage

= 220.20 V

9Phase A

current

= 5.000 A 10 Phase B

current

= 5.001 A

11 Phase C

current

= 5.002 A 12 Phase active

power = 3.291

Phase A active

power = 1.090

kW 14

Phase B active

power = 1.101

Phase C active

power

= 1.100 kW 16 Power factor

PFt = 0.500 L

Phase A power

factor

Pfa = 1.000 L 18

Phase B power

factor PFb =

0.500 L

Phase C power

factor PFc =

0.500 C 20 Frequency freq

= 50.00 Hz

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

Display (Change by key " ")

Parameter

Parameter Value range Description

1: 645;

2: n.2;

3: n.1;

4: E.1;

5: O.1;

Settings for communication stop bit and

Parity bits:

1: Factory mode;

2: None parity, 2 stop bits, n.2;

3: None parity, 1 stop bit, n.1;

4: Even parity, 1 stop bit, E.1;

5: Odd parity, 1 stop bit, O.1;

0: 4.800;

1: 9.600;

Communication baud rate:

0: 4800 bps;

1: 9600 bps;

11–19 Communication address

(Optional)Parameter Setup

Button description: "SET" represents "confirm" or "cursor shift" (when entering digits), "ESC"

represents "exit", and "→" represents "add". The password is 701 by default.

NOTE

Communications parameters have been configured for the power meter before delivery. If the

communication is abnormal, check and set the parameters.

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 DTSU666-H and DTSU666-H 250 A (50 mA) Smart Power Sensor User Manual.

6Verifying the Installation

7Powering On the System

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 inverter.

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

inverter 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 and

low ends of the current

transformer inlet are reversely

connected. Pa, Pb, and Pc are

abnormal if the values are

negative.

1. For wrong wiring, please

connect based on the correct

wiring mode (see the wiring

diagram).

2. If a negative value is

displayed, change the cable

connection mode of the current

transformer to ensure that the

high and low ends are

connected properly.

Customer Service Contact

Region

Country

Service Support Email

Phone

Europe

France

eu_inverter_support@huawei.com

0080033888888

Germany

Spain

Italy

Netherlands

Other countries

For details, see

solar.huawei.com.

Asia

Pacific

Australia

au_inverter_support@huawei.com

1800046639

Turkey

tr_inverter_support@huawei.com

Malaysia

apsupport@huawei.com

0080021686868

/1800220036

Thailand

(+66) 26542662 (charged by

local call)

1800290055 (free in Thailand)

China

solarservice@huawei.com

4008229999

Other countries

apsupport@huawei.com

0060

-3-21686868

Japan

[email protected]

0120258367

India

indiaenterprise_TAC@huawei.com

1800 103 8009

South

Korea

South Korea

[email protected]

North

America

USA

na_inverter_support@huawei.com

-877-948-2934

Canada

na_inverter_support@huawei.com

-855-482-9343

Latin

America

Mexico

la_inverter_[email protected]

018007703456

/0052

-442-4288288

Argentina

-8009993456

Brazil

-8005953456

Chile

800201866 (only for fixed)

Other countries

0052

-442-4288288

Middle

East and

Africa

Egypt

mea_inverter_suppor[email protected]

08002229000

/0020235353900

UAE

08002229000

South Africa

0800222900

Saudi Arabia

8001161177

Pakistan

0092512800019

Morocco

0800009900

Other countries

0020235353900

8Customer Service Contact

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