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Summary of Contents for SolaX Power DDSU666-CT
- Page 1 Smart Meter DDSU666-CT / DTSU666-CT User Manual...
- Page 3 No part of this manual may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means without the prior written permission of SolaX Power Technology (Zhejiang) Co., Ltd. Trademarks and other symbol or design (brand name, logo) that distinguishes the products or services offered by SolaX has been trademark protected.
- Page 4 Smart Meter (hereinafter referred to as “the meter” or “the device”). Please read it carefully before operating. Meter model: • Single phase: DDSU666-CT • Three phase: DTSU666-CT Target Group The installation, cable connection and parameter setting can only be performed by qualified personnel who •...
- Page 5 Conventions The symbols that may be found in this manual are defined as follows. Symbol Description Indicates a hazardous situation which, if not avoided, DANGER will result in death or serious injury. Indicates a hazardous situation which, if not avoided, WARNING could result in death or serious injury.
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Page 6: Table Of Contents
Table of Contents Safety ......................1 Product Overview ..................2 2.1 Introduction .........................2 2.2 Highlights ..........................2 2.3 Dimensions ..........................3 Cable Connection ..................4 3.1 Terminals ..........................4 3.2 Cable Requirements ......................5 3.3 System Wiring ........................6 Mechanical Installation ................11 LCD Display ....................12 Parameter Setting ..................15 6.1 Parameter Description .....................15 6.2 Setting Parameters ......................16 Technical Data ..................20... -
Page 8: Safety
Safety The Meter is well designed and tested to meet applicable state and international safety standards. As an electrical and electronic equipment, safety precautions must be observed and followed during the installation and electric connection to reduce the risk of personal injury and device damage. -
Page 9: Product Overview
Product Overview Introduction Smart Meter is suitable for use in electric power systems such as distributed PV systems, energy storage stations and more. It can be connected to electric power devices to monitor the power and meter the energy, allowing you to grasp the power status and regulate the power flow of the system at all times. -
Page 10: Dimensions
Product Overview Dimensions Figure 2-1 DDSU666-CT Figure 2-2 DTSU666-CT... -
Page 11: Cable Connection
Cable Connection Terminals Figure 3-1 DDSU666-CT Figure 3-2 DTSU666-CT Table 3-1 DDSU666-CT terminal definition Terminal No. Terminal Definition Description Voltage input terminal, connected to the L wire Phase N voltage input terminal, connected to the N wire Current input terminal, connected to... -
Page 12: Cable Requirements
C, connected to S2 wire of CT RS485A RS485 terminal A RS485B RS485 terminal B Note: The terminals in the same box are a pair. Cable Requirements Table 3-3 Cables for DDSU666-CT Sectional Outer Terminal Cable type Torque Usage... -
Page 13: System Wiring
Cable Connection Table 3-4 Cables for DTSU666-CT Sectional Outer Cable type Torque Usage Terminal No. area diameter (Recommended) (N·m) (mm) Max.: 0.4 2, 5, 8 Rec . :0.15~0.25 Voltage Multi-core outdoor 1.5~2.5 cable copper wire Max.: 1.7 Rec . :0.9~1.1 1, 4, 7 Multi-core outdoor Max.: 1.7... - Page 14 Cable Connection DDSU666-CT L wire S1 wire RS485A wire PE wire N wire S2 wire RS485B wire 9 10 Figure 3-3 Terminal wiring Note: * represents the incoming side of current. Inverter COM/Meter 485A 485B INV/Load Grid Grid Main breaker...
- Page 15 Cable Connection Inverter Inverter DataHub RS485 RS485 RS485 RS485 485B- 485A+ 485A 485B 485A+ 485B- INV/Load Grid Grid Main breaker Load Figure 3-5 Networking through DataHub Note: The diagram of networking through DataHub uses the cascading of gird-connected inverters for example, and the RS485 terminal of the master inverter for connecting slave inverters and DataHub might vary depending on the inverter models.
- Page 16 Cable Connection DTSU666-CT DTSU666-CT supports 3-phase 4-wire (3P4W) and 3-phase 3-wire (3P3W). For 3P3W, N wire does not need to be connected, and CT is not required for phase B. The overall system wiring diagrams use 3P4W wiring method for example. S1 wire L1 wire L3 wire...
- Page 17 Cable Connection Inverter COM/Meter 485A 485B INV/Load Grid Grid Main breaker Load Figure 3-8 Networking through RS485 cable Inverter Inverter DataHub RS485 RS485 RS485 RS485 485B- 485A+ 485A+ 485B- 485A 485B INV/Load Grid Main breaker Grid Load Figure 3-9 Networking through DataHub Note: The diagram of networking through DataHub uses the cascading of gird-connected inverters for example, and the RS485 terminal of the master inverter for connecting slave inverters and DataHub might vary depending on the inverter models.
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Page 18: Mechanical Installation
Mechanical Installation The meter is designed to be installed on the 35 mm DIN rail inside the power distribution box. WARNING! • Only the qualified personnel can perform the mechanical installation following local standards and requirements. • Before installation, make sure you have cut off the power supply for the system. NOTICE! •... -
Page 19: Lcd Display
NOTICE! • The following display item images are for reference, and might differ from the screen of the actual product. DDSU666-CT Figure 5-1 LCD display items Table 5-1 Display item description Item... - Page 20 LCD Display 8 data bit, none Communication parity, and 1 stop protocol: Modbus Communication Communication address: 001 baud rate: 9600 DTSU666-CT Figure 5-2 LCD display items Table 5-2 Display item description Item Description Item Description Positive active Reverse active energy= energy= 1000.00 kWh 2345.67 kWh...
- Page 21 LCD Display Combined phase Phase A active active power=3.291 power=1.090 kW Phase B active Phase C active power=1.101 kW power=1.100 kW Combined phase Phase A power power factor factor PFa=1.000 PFt=0.500 Phase B power factor Phase C power PFb=0.500 factor PFc=0.500...
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Page 22: Parameter Setting
For DTSU666-CT, multiple parameters can be set. Parameter Description NOTICE! • This section only applies to DTSU666-CT. DDSU666-CT directly enters the communication protocol interface after you long press the → button. Table 6-1 Parameter description of DTSU666-CT... -
Page 23: Setting Parameters
Table 6-2 Button description Model Button Description Long press to go to the communication protocol DDSU666-CT interface, and short press to select the stop bit and → parity bit combination. • Enter the parameter setting interface • Confirm the selection •... - Page 24 Parameter Setting DDSU666-CT You can set the communication protocol of the meter to Modbus or 645 protocol. For Modbus protocol, multiple stop bit and parity bit combinations are available, and you can press → to switch among them. NOTICE! • Meter screenshots used in this section are for reference only, and may differ from the actual item display sequence of the meter.
- Page 25 Parameter Setting DTSU666-CT All parameters mentioned in “Parameter Description” can be set. The setting procedures are similar, and this section only introduces the setting steps of commonly used functions. NOTICE! • Password verification is required for parameter setting. The default password is 701. Setting the transformer current and voltage ratio The current ratio of the included CT model is 40, and it is preconfigured upon delivery.
- Page 26 Parameter Setting Setting the wiring mode Setting the wiring mode to 3-phase 4-wire (3P4W) or 3-phase 3-wire (3P3W). Setting the metering mode Set the metering mode to phase metering or net metering. For net metering, the screen will display an 1 on the Imp/Exp status bar. Metering mode Screen display Description...
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Page 27: Technical Data
Technical Data Table 7-1 Specification DDSU666-CT DTSU666-CT Power grid type 1P2W 3P4W/3P3W Rated voltage 220 V/230 V 3 × 230 V/400 V Input voltage (phase 176 Vac ~ 264 Vac 161 Vac ~ 276 Vac voltage) Current 0.05—1.5 (6) A Power Consumption ≤1 W... -
Page 28: Troubleshooting
Troubleshooting Following are common problems with the meter when used with inverters. When a problem occurs, check the questions below for possible reasons and solutions. For further assistance, contact SolaX after-sales Service. 01 What if the inverter LCD or SolaXCloud reports a MeterFault alarm when the meter is connected to and enabled on the inverter? The inverter reports a MeterFault alarm when it fails to communicate with the meter. -
Page 29: Appendix
Compatible Inverters and Pin Definition DDSU666-CT DDSU666-CT can only be connected to single-phase inverters. It is compatible with the following single-phase inverters. While connecting the cables, pay special attention to the connector type and the pin number of the inverter. - Page 30 Appendix 4 / 11 485A Quick- connect — X1-SMART G2 terminal 5 / 12 485B *Note: Two terminals of different types are available for meter on X1-Smart G2, and the pins in the same box are a pair. DTSU666-CT DTSU666-CT can be connected to both single-phase and three-phase inverters. Therefore, besides the above the single-phase inverters, it is also compatible with the following three- phase inverters.
- Page 31 Appendix 485A X3-PRO G2 O/I terminal 485B 485A • X3-MEGA G2 Quick-connect • X3-FORTH terminal 485B...
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Page 32: Optional Ct Models
Appendix Optional CT Models The included CT model for both DDSU666-CT and DTSU666-CT is NCTK24 200A/5A. DDSU666-CT does not support other CT models. DTSU666-CT supports the following CT models. Configuration CT Model Specification Current Ratio Included NCTK24 200A/5A 200A/5A SCT-36 Split Core 400/5... - Page 33 Contact Information UNITED KINGDOM AUSTRALIA Unit 10, Eastboro Fields, Hemdale Business 12-18 Lascelles St, Springvale VIC 3171 Park, Nuneaton, CV11 6GL +61 1300 476 529 +44 (0) 2476 586 998 service@solaxpower.com service.uk@@solaxpower.com TURKEY GERMANY Esenşehir Mah. Hale Sk. No:6/1 Ümraniye / Eisenstraße 3, 65428 Rüsselsheim am Main, İSTANBUL Germany...
- Page 34 SolaX Power Network Technology (Zhejiang) Co., Ltd. Add.: No. 288, Shizhu Road, Tonglu Economic Development Zone, Tonglu City, Zhejiang Province, 310000 P. R. CHINA Tel.: +86 (0) 571 5626 0011 E-mail: info@solaxpower.com / service@solaxpower.com 320101098100 Copyright © SolaX Power Technology (Zhejiang) Co., Ltd. All rights reserved.
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