Chint DTSU666 Smart Meter
Specifications
Growatt Smart Meters:
- Measurements: voltage, current, power factor, active/reactive
power, energy consumption - Functionality: real-time energy monitoring, export limitation,
integration with battery storage systems
Product Usage Instructions
1. Introduction to Growatt Smart Meters
Growatt Smart Meters are essential for energy management,
offering accurate measurements and integration capabilities.
2. Benefits of Using a Smart Meter
Advantages include accurate energy measurement, export
limitation, easy integration with Growatt inverters, and
compatibility with retrofit battery storage solutions.
3. Supported Growatt Smart Meters
Supported models include Chint and Eastron meters for
single-phase and three-phase setups.
4. Installation Guide for Each Smart Meter
4.1 Chint DTSU666 Installation
Technical Specifications:
- Voltage: 230V/400V AC, 50Hz/60Hz
- Current Range: 0-80A (Direct Connection), >80A via CT
- Communication: RS485 output for Modbus RTU
Wiring Diagram & Installation:
- Install on DIN rail
- Connect phase and neutral terminals
- Ensure correct CT orientation if using transformers
- Connect communication wiring to inverter and meter (A = WHITE
ORANGE, B = WHITE BLUE)
Meter Setting:
- Meter address (when connected to inverter): 004
- Meter password: 701
4.2 Chint DDSU666 Installation
Technical Specifications:
- Voltage: 220-240V AC, 50Hz/60Hz
- Max Current: 80A
- Communication: RS485 output for Modbus RTU
Wiring & Installation:
- Clip onto DIN rail
- Connect L/N to grid
- Connect communication wiring to inverter and meter (A = WHITE
ORANGE, B = WHITE BLUE)
Meter Setting:
- Meter address (when connected to inverter): 003
- Meter password: 701
4.3 Eastron SDM630MCT Installation
Technical Specifications:
- Rated Voltage: 3×230/400V AC
- Current Input: Via external CTs
- Communication: RS485 Modbus
Frequently Asked Questions (FAQ)
Q: How do I troubleshoot common errors with Growatt Smart
Meters?
A: Refer to the Troubleshooting & FAQs section in the manual
for common errors and solutions.
Q: Can I use Growatt Smart Meters with other inverters?
A: Growatt Smart Meters are designed for seamless integration
with Growatt inverters, ensuring optimal performance.
Growatt Smart Meter Installation & Configuration Guide
Contents
1. Introduction to Growatt Smart Meters …………………………………………………………………………………… 2 1.1 Overview of Smart Meters………………………………………………………………………………………………… 2 1.2 Benefits of Using a Smart Meter………………………………………………………………………………………… 2 1.3 Supported Growatt Smart Meters ……………………………………………………………………………………… 2
2. Installation Guide for Each Smart Meter …………………………………………………………………………………. 3 2.1 Chint DTSU666 Installation ………………………………………………………………………………………………. 3 2.2 Chint DDSU666 Installation……………………………………………………………………………………………….. 3 2.3 Eastron SDM630MCT Installation ………………………………………………………………………………………. 4 2.4 Eastron SDM630-MODBUS V3 Installation ………………………………………………………………………….. 4 2.5 Eastron SDM230 Installation …………………………………………………………………………………………….. 5 2.6 Eastron SDM120CT Installation …………………………………………………………………………………………. 5
3. Configuring Smart Meters for Retrofit Installations ………………………………………………………………….. 6 3.1 Single-Phase Retrofit Setup ………………………………………………………………………………………………. 6 3.2 Three-Phase Retrofit Setup……………………………………………………………………………………………….. 6
4. Wiring and Communication Setup………………………………………………………………………………………….. 7 4.1 RS485 Connection and Configuration …………………………………………………………………………………. 7 4.2 How to Connect Communication Cables …………………………………………………………………………….. 7 4.3 Inverters RS485 meter Configuration …………………………………………………………………………………. 7
5. Troubleshooting & FAQs ………………………………………………………………………………………………………. 8 5.1 Common Errors & Solutions ……………………………………………………………………………………………… 8 5.2 How to configure Smart Meter ………………………………………………………………………………………….. 8
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1. Introduction to Growatt Smart Meters
1.1 Overview of Smart Meters
Growatt Smart Meters are crucial for real-time energy monitoring, export limitation, and integration with battery storage systems. They measure voltage, current, power factor, active/reactive power, and energy consumption, allowing better energy management.
1.2 Benefits of Using a Smart Meter
Some advantages include: – Accurate energy measurement – Export limitation functionality – Easy integration with Growatt inverters – Essential for retrofit battery storage solutions
1.3 Supported Growatt Smart Meters
– Chint three-phase meter (DTSU666) : TPM-C – Chint three-phase 6CT meter (DTSU666) : TPM-6CT-C – Chint single-phase meter (DDSU666) : SPM-C – Eastron three-phase CT meter (SDM630MCT-MA) : TPM-CT-E – Eastron three-phase meter (SDM630- MODBUS V3) : TPM-E – Eastron single-phase meter (SDM230-MODBUS) : SPM-E – Eastron single-phase CT meter(SDM120CT) : SPM-CT-E
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2. Installation Guide for Each Smart Meter
2.1 Chint DTSU666 Installation
** Technical Specifications: **
– Voltage: 230V/400V AC, 50Hz/60Hz – Current Range: 0-80A (Direct Connection), >80A via CT – Communication: RS485 output for Modbus RTU
** Wiring Diagram & Installation: **
– Install the meter on a DIN rail – Connect phase and neutral terminals – Ensure correct CT orientation if using transformers – Connect communication wiring to inverter and meter (A = WHITE ORANGE, B = WHITE BLUE): inverter RS485A to meter pin 24, inverter RS485 B to meter pin 25
** Meter Setting: **
– Meter address (when connect to inverter): 004 – Meter password: 701
2.2 Chint DDSU666 Installation
** Technical Specifications: **
– Voltage: 220-240V AC, 50Hz/60Hz – Max Current: 80A – Communication: RS485 output for Modbus RTU
** Wiring & Installation: **
– Clip onto DIN rail – Connect L/N to grid – Connect communication wiring to inverter and meter (A = WHITE ORANGE, B = WHITE BLUE):
inverter RS485 A to meter pin 24, inverter RS485 B to meter pin 25
** Meter Setting: **
– Meter address (when connect to inverter): 003 – Meter password: 701
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2.3 Eastron SDM630MCT Installation
** Technical Specifications: **
– Rated Voltage: 3×230/400V AC – Current Input: Via external CTs – Communication: RS485 Modbus
** Wiring & Installation: **
– Mount on DIN rail – Connect voltage and current inputs – Connect RS485 A/B to inverter (A = WHITE ORANGE, B = WHITE BLUE) – Connect communication wiring to inverter and meter (A = WHITE ORANGE, B = WHITE BLUE):
inverter RS485 A to meter pin 14 , inverter RS485 B to meter pin 13
** Meter Setting: **
– Meter address : 002 – Meter password:1000
2.4 Eastron SDM630-MODBUS V3 Installation
** Technical Specifications: **
– Voltage: 100-289V (L-N), 173-480V (L-L) – Communication: RS485 Modbus
**Wiring & Installation: **
– Connect voltage sampling lines – Connect communication wiring to inverter and meter (A = WHITE ORANGE, B = WHITE BLUE):
inverter RS485 A to meter pin A + , inverter RS485 B to meter pin B –
** Meter Setting: ** – Meter address: 002 – Meter password:1000
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2.5 Eastron SDM230 Installation
** Technical Specifications: **
– Voltage: 176-276 AC, 50Hz/60Hz – Max Current: 100A – Communication: RS485 Modbus
** Wiring & Installation: **
– Clip onto DIN rail – Connect L/N to grid – Connect communication wiring to inverter and meter (A = WHITE ORANGE, B = WHITE BLUE):
inverter RS485 A to meter pin 5 , Inverter RS485 B to meter pin 6, inverter RS485 B
** Meter Setting: **
– Meter address : 001 – Meter password: 1000
2.6 Eastron SDM120CT Installation
** Technical Specifications: **
– Rated Voltage: 184/276V AC – Current Input: Via external CTs – Communication: RS485 Modbus
** Wiring & Installation: **
– Mount on DIN rail – Connect voltage and current inputs – Connect communication wiring to inverter and meter (A = WHITE ORANGE, B = WHITE BLUE): inverter RS485 A to meter pin 10 , inverter RS485 B to meter pin 9
** Meter Setting: **
– Meter address : 001 – Meter password:1000
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3. Configuring Smart Meters for Retrofit Installations
3.1 Single-Phase Retrofit Setup
For single-phase retrofit systems, use the TPM-CT-E (SDM630MCT) meter with Growatt MIN-XH inverters. Ensure correct wiring and RS485 configuration for communication with the inverter. Please check the manual `Growatt Retrofit Single Phase’ for all the details.
3.2 Three-Phase Retrofit Setup
For three-phase setups, the TPM-6CT meter should be used with MOD-XH and MID-XH series inverters. Install CTs correctly for grid monitoring and set the RS485 communication parameters accordingly. Please check the manual `Growatt Retrofit Three Phase’ for all the details.
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4. Wiring and Communication Setup
4.1 RS485 Connection and Configuration
All Growatt smart meters communicate via RS485. Ensure the correct connection of A and B terminals from the meter to the inverter.
A = White Orange B = White Blue
4.2 How to Connect Communication Cables
– RS485 A (White Orange) from the meter connects to RS485 A on the inverter. – RS485 B (White Blue) from the meter connects to RS485 B on the inverter. – Proper shielding and grounding for longer cable runs.
4.3 Inverters RS485 meter Configuration
If you have a different inverter than described below. Please check the manual for that specific inverter and search for the communication configuration and look for the Meter communication port.
MIN 2500-6000 TL-XH (COM port: PIN 5&6)
MOD 3K-10K TL3-XH(BP) (COM port: PIN 5&6)
MID 11K-30K TL3-XH (COM port: PIN 5&6)
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5. Troubleshooting & FAQs
5.1 Common Errors & Solutions
1) Error 401 (RS485 Communication Error):
Check wiring, COM address and baud rate.
COM Address 001 = Single phase Eastron COM Address 002 = Three phase Eastron COM Address 003 = Single phase Chint COM Address 004 = Three phase Chint (including TPM-6CT-C) baud rate = 9600
Measure the DC voltage with a multimeter between points A and B of the communication cable. The voltage should be between 3V and 5V. If it is lower than this, the cable should be replaced.
2) Incorrect Power Readings:
– Verify the orientation of the inline smart meter or CT and the wiring. The arrow should always point toward the load (K -> L).
– Ensure all phases are correctly aligned by measuring the voltage between phase L1 on the main breaker and phase L1 on the smart meter. The measurement should read 0V. If it reads 400V, the phases are reversed. Repeat this process for phase L2 and phase L3.
5.2 How to configure Smart Meter
1) Chint Three Phase smart meter configuration to set COM address, baud rate and CT ratio.
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2) Chint Single Phase smart meter configuration to set COM address, baud rate. 3) Eastron Three Phase smart meter configuration to set COM address, Baudrate and CT ratio.
4) Eastron Single Phase smart meter configuration to set COM address, Baudrate.
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Documents / Resources
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GROWATT Chint DTSU666 Smart Meter [pdf] Installation Guide Chint DTSU666, Chint DTSU666 Smart Meter, Smart Meter, Meter |