Micro Inverter User Manual (Life)
WVC-350(Life)
Brand: Kaideng
Overview & IoT Monitoring
Green Energy Smart Inverter Expert
The Kaideng WVC-350(Life) is a micro inverter designed for solar energy systems, featuring an IoT Monitoring Platform for smart mobile control.
IoT Monitoring Platform Features:
- CO-2 induced environmental analysis
- Daily and total energy generation in kWh
- Actual DC input voltage, current, and power
- Actual AC output voltage, current, and power
- Inverter temperature monitoring
- Historical (daily, weekly, monthly) power curve display
- Analysis of power losses due to weather-induced effects
- Optional limitation of power output
- Online switch for inverter start/stop
Communication Modes: The system supports Wi-Fi, LoRa, and connection to a Router and Ali Cloud Server for data exchange and monitoring via a mobile APP.
Technical Specifications
| Specification | Value | |
|---|---|---|
| Model | WVC-350 | |
| Recommend use panels | 1*435Watt | |
| Output voltage mode | 120/230V Auto switch | |
| PV Open circuit voltage | 30-60VDC | |
| Operating voltage range | 22-60V | |
| Starting voltage range | 22-60V | |
| Short-circuit current | 18A | |
| Maximum working current | 16A | |
| Output parameters (@120V) | @230V | |
| Output peak power | 350Watt | 350Watt |
| Rated output power | 330Watt | 330Watt |
| Output current | 2.91A | 1.52A |
| AC voltage range | 80-160VAC | 180-280VAC |
| AC frequency range | 48-51Hz/58-61Hz | 48-51Hz/58-61Hz |
| Power factor | >95% | >95% |
| Number of branch connections | 15PCS (Single) | 25PCS (Single) |
| Output efficiency | @120V | @230V |
| Static MPPT efficiency | 99.5% | 99.5% |
| Max output efficiency | 95% | 95% |
| Loss of power at night | <0.5W | <0.5W |
| Total current harmonics | <5% | <5% |
Appearance and Technical Features
- Temperature range: -40°C to +65°C
- Size (L×W×H): 165mm×176mm×38mm
- Net weight: 0.82kg
- Waterproof grade: IP65 NEMA3R
- Heat dissipation mode: Self-cooling
- Communication mode: Wi-Fi
- Power transmission mode: Reverse transmission, Load priority monitoring system
- Power Grid standard: EN61000-6-1:2007, EN6100-6-3:2007+A1:2011+AC:2012, EN50549-1, EN50549-2, NBR 16149:2013, UL1741
- Power grid detection: IEC/EN 62109-1, IEC/EN 62109-2, IEC 62116, IEEE 1547
- Certificate: CE, ETL, Patented technology
Packing Weight & Specifications:
| Item | Each (Packing) | Box (15PCS) |
|---|---|---|
| Weight | 1.28 KG | 19.5 KG |
| Size | 245×202×60mm | 450×395×345mm |
System Diagram and Wiring
The system diagram illustrates the connection of the Micro Inverter to solar panels, a Wi-Fi router, an Ali Cloud Server, and a monitoring system. Data is exchanged via Wi-Fi, enabling App control and monitoring.
Wiring Instructions:
With N wire connection (Single phase 120/230V):
- Connect L/L1 to the Live wire (brown cable, 0.75mm²).
- Connect N/L2 to the Neutral wire (blue cable, 0.75mm²).
- Connect G to the Ground wire (yellow & green cable, 0.75mm²).
No N wire connection (Single phase 120V):
- Connect L1 to the Live wire (brown cable, 0.75mm²).
- Connect L2 to the Live wire (brown cable, 0.75mm²).
- Connect G to the Ground wire (yellow & green cable, 0.75mm²).
Note: A professionally customized AC bus with a T-type connector can be used for modular branch wiring systems.
LED Indicator Function
- 1. Red light keeps on: The equipment enters the preparatory working state.
- 2. Red light flashes: The device enters the delayed start-up state.
- 3. Blue light flashes quickly: MPPT maximum power point search status.
- 4. Blue light keeps on: MPPT maximum power point locked state.
- 5. Blue light turns to red light for a long time: Indicates issues such as Island protection, Frequency protection, Fault, Software shutdown, AC voltage over-voltage protection, or DC voltage over-voltage protection.
Normal Working Indicator Flashing Process:
After connecting the micro-inverter correctly to AC and DC terminals and powering on:
- The red light stays on for 3 seconds.
- The red light flashes for 30 seconds.
- The blue light flashes quickly (MPPT maximum power point search).
- The blue light stays on (MPPT lock).
Cloud Intelligence APP Usage
The Cloud Intelligence APP allows for real-time data transmission and monitoring of the solar power station. It enables users to view operation status and adjust output power.
Downloading the APP:
Scan the QR codes provided or search for "Cloud Intelligence" on the App Store (iOS 9 and above) or Google Play (Android 5.0 and above).
Adding a Device:
- Open the "Cloud Intelligence" APP and log in to your account.
- Click the "+" icon in the upper right corner to start adding equipment. If a device is already associated with the account, click the device icon to view details.
Entry Equipment (Wi-Fi Connection):
- When the APP enters the QR code scanning state, scan the QR code label on the inverter body.
- The APP will automatically collect the inverter code and navigate to the Wi-Fi connection page.
- Enter the current Wi-Fi password and click "Next".
Distribution Network:
- Connect the inverter to the power supply as required.
- Quickly press the "Reset" button. The "LED" indicator will flash blue and red alternately, indicating the inverter is in the standby state for distribution network setup.
Initialization:
- When the inverter is in standby mode, return to the mobile APP.
- On the device operation page, check the "I have completed the above operations" box and click "Start Connection".
- The page will transition to a signal search page. The inverter's LED indicator will change from flashing blue and red alternately to a solid blue light upon successful network distribution.
- The page will automatically display a system completion confirmation. Click "Finish".
Inverter Control:
Access the "Settings" button on the system details page within the APP to adjust the inverter's output power, set timing functions, and enable remote start/stop as needed.
Remarks:
- For multiple inverters, list their codes separated by commas (e.g., 60001234, 6000E312).
- Each Modem can monitor up to 60 inverters.
- A total of 2 lists are available, each capable of holding 30 inverter codes.
For more information, visit kaidengdg.com.
