HUAWEI Three Phase PV+LUNA2000+Smart Dongle Networking
Product Information
Specifications
- Product Name: FusionSolar Smart PV Residential Solution
- Components: Three-phase PV system, LUNA2000 inverter, Smart Dongle Networking
- Cable Type: Outdoor shielded twisted pair cables
Product Usage Instructions
Wiring Guidelines
Before connecting cables, ensure all switches are OFF to prevent electric shocks. Follow the wiring diagram for proper connection.
Connection Steps
- Connect signal cables using shielded twisted pair cables.
- Connect to Slave inverter 1-COM-pin 2 and Slave inverter 1-COM-pin 4 for initial setup.
- Connect to ESS 1-COM-pin 4, DTSU666-H-COM-pin 24, and ESS 1-COM-pin 7 for additional connections.
- Ensure consistent wiring sequence for the Backup box and inverter AC terminals.
Cable Connection
Connect DC power cables, AC power cables, and signal cables as per the designated ports and components mentioned in the wiring diagram.
Additional Notes
- Ensure proper grounding by connecting shield layers as indicated in the diagram.
- Refer to the connection method for the master inverter when connecting cables to slave inverters.
Solution Wiring Diagram
DANGER
Before connecting cables, ensure that all switches are OFF. Otherwise, electric shocks may occur.
NOTICE
Signal cables must be outdoor shielded twisted pair cables.
The wiring sequence of the Backup box must be consistent with that of the inverter AC terminals.
Connect other cables to slave inverters by referring to the connection method for the master inverter.
| Cable Type. | No. | One End | The Other End | ||
| Component | Port | Port | Component | ||
|
DC power cable |
Master inverter | PV1+ | Positive terminal | PV
strings |
|
| PV1- | Negative terminal | ||||
| Master inverter | BAT+ | BAT+ |
ESS 1 |
||
| BAT- | BAT- | ||||
| ESS 1 | BAT+ | BAT+ | ESS 2 | ||
| BAT- | BAT- | ||||
|
Signal cable |
|
Master inverter |
COM |
COM (right) | ESS 1 |
| COM | Slave inverter 1 | ||||
| RS485 | DTSU666-H | ||||
| X4 | Backup box | ||||
| ESS 2 | COM (right) | COM (left) | ESS 1 | ||
| Slave inverter 1 | COM-1 | COM-2 | Slave inverter 2 | ||
| COM-3 | COM-4 | ||||
|
AC power cable |
|
Master inverter |
AC-L1 | X3-1 (L1) |
Backup box |
| AC-L2 | X3-3 (L2) | ||||
| AC-L3 | X3-5 (L3) | ||||
| AC-N | X3-8 (N) | ||||
| AC-PE | X3-12 (PE) | ||||
|
AC power cable |
Backup load power distribution
box |
L | X1-1 |
Backup box |
|
| N | X1-2 | ||||
| PE | X1-4 | ||||
|
|
AC power distribution box |
L1 | X2-1 |
Backup box |
|
| L2 | X2-2 | ||||
| L3 | X2-3 | ||||
| N | X2-4 | ||||
| PE | X2-6 | ||||
|
AC power distribution box |
L1 | 3 |
DTSU666-H |
||
| L2 | 6 | ||||
| L3 | 9 | ||||
| N | 10 | ||||
|
|
AC power distribution box |
L1 |
13 |
DTSU666-H CT |
|
| 14 | |||||
| L2 | 16 | ||||
| 17 | |||||
| L3 | 19 | ||||
| 21 |
FAQ
What type of cables should be used for the connections?
Signal cables must be outdoor shielded twisted pair cables for proper functioning and safety.
How should I connect the Backup box to the inverter AC terminals?
The wiring sequence of the Backup box must match that of the inverter AC terminals to ensure correct connection.
What precautions should I take before connecting cables?
Make sure all switches are OFF to prevent electric shocks while connecting the cables.
Documents / Resources
 |
HUAWEI Three Phase PV+LUNA2000+Smart Dongle Networking [pdf] User Guide EL, LUNA2000, Smart Dongle, Three Phase PV LUNA2000 Smart Dongle Networking, PV LUNA2000 Smart Dongle Networking, Dongle Networking, Networking |