BENY BYM500/550/600 PV Microinverter User Quick Installation Guide

Please Confirm Before Connecting the BENY Microinverter

1. Whether the grid voltage at the common connection point conforms to the AC voltage level on the micro-inverter label.
2. Whether the electrical parameters of the PV modules meet the DC input range on the microinverter label.

System Installation Diagrams

The system installation diagrams differ based on the communication method of the BENY microinverter (PLCC or Wi-Fi).

PLCC Communication Method

Wi-Fi Communication Method

For PLCC communication, start from Step 1. For Wi-Fi communication, skip to Step 3.

Installation Steps

STEP 1: Install the LC filter (Skip if no monitoring device)

Select a suitable AC cable to connect the LC filter to the power distribution box or AC outlet. Ensure the cable's current carrying capacity is adequate for the total output current of all connected microinverters. For example, for 2 microinverters, the cable capacity should exceed 5A; for 8 microinverters, it should exceed 20A. A 12AWG cable is recommended.

Note: If more than 8 microinverters are connected, an additional AC bus, LC filter, and monitoring equipment (EMU) are required.

STEP 2: Install the monitoring device EMU (Skip if no monitoring device)

a. Connect the L and N terminals of the EMU to the LC filter, observing polarity. This connection should be made away from the distribution box or outlet.

b. Connect the EMU's network cable (RJ45) to the LAN port of a router that provides internet access.

STEP 3: Install the AC bus

a. Pre-arrange the AC bus at a suitable location for microinverter connection.

b. If an LC filter is used, connect one end of the AC bus to the same side of the filter as the EMU connection. If no LC filter is used, connect the AC bus to the grid connection equipment (e.g., combiner box or outlet).

Wiring Types: Pay attention to the AC bus wiring method, choosing one of the following:

• Type 1: Live (L) - Red; Neutral (N) - Black; Earth (PE) - Green.
• Type 2: Live (L) - Red; Neutral (N) - Black; Earth (PE) - Blue.
• Type 3: Live (L) - Brown; Neutral (N) - Blue; Earth (PE) - Yellow Green.
• Type 4: Live (L) - Black; Neutral (N) - Blue; Earth (PE) - Yellow Green.

Grounding: The AC cable includes an earth wire for direct grounding. Optional grounding brackets are available for special requirements. Connect the earth wire to an AC ground according to local regulations using the grounding bracket on each microinverter.

STEP 4: Install the BENY microinverter on the bracket

Installation Notes:

• Ensure the microinverter shell is not exposed to direct sunlight during normal use.
• The metal support surface should fit closely with the installation surface of the microinverter, maximizing contact area for thermal conductivity.
• Ensure adequate airflow around the microinverter, maintaining a clearance of at least 30mm from obstacles like the roof or ground.

STEP 5: Tightly connect the AC port of the BENY microinverter with the AC bus connector

Note: Use the bus removal tool when disconnecting the AC link cable. Wiring colors vary by region; the microinverter verifies all connections before AC bus connection. Incorrect wiring can damage the microinverter and is not covered under warranty.

STEP 6: Install the waterproof protective cover

Install the waterproof protective cover on the end of the AC bus and any unused female connector. This step can be skipped if not applicable.

STEP 7: Connect the solar modules

Connect each BYM500/550/600 microinverter to the PV modules.

Parallel Connection Specifications: If two photovoltaic modules are connected in parallel, ensure they meet the following specifications:

• STC: (300~450 Wp) x 2, with 72~75 cells/144~150 sub-cells.
• NMOT: Vmp ≥ 34V and Imp ≤ 12A.

Connection Methods for PV Modules

a. Applications for parallel adapter cable

b. Application of Paralleling Optimizer

Completing the Installation and System Startup

STEP 8: Complete the installation diagram of BENY microinverter system

Refer to the schematic diagram for the physical location of each microinverter in the solar system. Customers can use the blank diagram in the appendix to record installation positions or draw their own system diagram.

• Each BENY microinverter has two removable serial number labels. Tear off one label and stick it to the corresponding position on the installation diagram, and stick the other label on the solar module frame for easy viewing.
• Scan the label with a mobile phone to add and configure the microinverter in the BENY microinverter APP.

STEP 9: Get Started

To operate the BENY microinverter PV system:

1. Close the AC main circuit breaker connected to the microinverter system.
2. Close the on-grid main circuit breaker. The system will start generating electricity in approximately 1 minute.

STEP 10: Download BENY Microinverter monitoring APP

Check the working status of the microinverters using the BENY monitoring APP.

1. Search for "BYM Cloud" in the Apple App Store (iOS) or Google Store (Android), or scan the provided QR codes to download the app.
2. Log in to your account and add the microinverter and EMU devices to view their working status. New BENY customers should apply for an account through their distributor. For Wi-Fi communication mode, complete network configuration via the APP. Refer to the BYM Cloud Software Operation Instructions for details on using the app, adding devices, and configuring Wi-Fi.

⚠️ Warning: Pay attention to the AC cable length on the Microinverter. If the distance between two microinverters is longer than the AC cable, use an AC extension cable.