Huawei Dtsu666-h Smart Power Sensor User Guide

HUAWEI DTSU666-H Smart Power Sensor User Guide

Overview

Models

• DTSU666-H: with three 100 A/40 mA CT
• DTSU666-H 250 A/50 mA: with three 250 A/50 mA CT
  

Appearance

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

• Parameters on the panel

DTSU666-H

DTSU666-H 250 A/50 mA

• Nameplate

DTSU666-H

DTSU666-H 250 A/50 mA

Performance and Specification

Port Definition

Voltage Input: 3×230/400 V or 3×400 V
Current Transformer(CT): 100 A/40 mA or 250 A/50 mA;

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

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.
   

Installing the Cable

Prepare cables

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.

Wiring Diagram–Three Phase Four Wire

Support model:

• DTSU666-H
• DTSU666-H 250 A/50 mA

Operating voltage: 0.7–1.3 Un

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.
   

NOTE
The CT direction must be consistent with the arrow direction as shown in the preceding figure.

Wiring Diagram–Three Phase Three Wire

Support model:

• DTSU666-H 250 A/50 mA

Operating voltage: 0.7–1.3 Un

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.
   

NOTE
The CT direction must be consistent with the arrow direction as shown in the preceding figure

User Interface

Display (Auto loop)

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
1		Imp. activeenergy = 10000.0 kWh	2		Exp. active energy= 2345.67 kWh
3		Active power= 3.291 kW	4		Phase A voltage= 220.0 V
5		Phase B voltage= 220.1 V	6		Phase C voltage= 220.20 V
7		Phase A current= 5.000 A	8		Phase B current= 5.001 A
9		Phase C current= 5.002 A	10		Frequency freq = 50.00 Hz

Display (Change by key ” “)

No.	Display interface	Description	No.	Display interface	Description
1		Comb. active energy= 7654.33 kWh	2		Imp. active energy= 10000.0 kWh
3		Exp. active energy= 2345.67 kWh	4		None parity, 1 stop bit,Baud = 9600bps
5		001 represents address	6		Phase A voltage= 220.0 V
7		Phase B voltage= 220.1 V	8		Phase C voltage= 220.20 V
9		Phase A current= 5.000 A	10		Phase B current= 5.001 A
11		Phase Ccurrent= 5.002 A	12		Phase activepower = 3.291 kW
13		Phase A active power = 1.090kW	14		Phase B active power = 1.101kW
15		Phase C active power= 1.100 kW	16		Power factor PFt = 0.500 L
17		Phase A power factorPfa = 1.000 L	18		Phase B power factor PFb =0.500 L
19		Phase C power factor PFc =0.500 C	20		Frequency freq= 50.00 Hz

Comb. active energy = Imp. active energy – Exp. active energy

Parameter

Parameter	Value range	Description
	1: 645;	Settings for communication stop bit and Parity bits:
	2: n.2;	1: Factory mode;
	3: n.1;	2: None parity, 2 stop bits, n.2;
	4: E.1;	3: None parity, 1 stop bit, n.1;
	5: O.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

NOTE
Communications parameters have been configured for the power meter before delivery. If the communication is abnormal, check and set the parameters.

Button description: “SET” represents “confirm” or “cursor shift” (when entering digits), “ESC” represents “exit”, and “→” represents “add”. The password is 701 by default.

Troubleshooting

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.

Powering On the System

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

Customer Service Contact

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

Issue: 03
Date: 2019-09-29

References

• Huawei - Building a Fully Connected, Intelligent World
• Homepage - FusionSolar Global