LV6048 MPP Solar Inverter User Manual

1. Introduction

The LV6048 is a 6000W/48Vdc grid-optional solar inverter designed for power systems in regions utilizing 110/120V single phase, 208V/240V split phase, or 208V 3-phase loads. This model is suitable for off-grid applications in the US, Canada, Puerto Rico, and other regions where 120V/240V split phase power is standard, eliminating the need for an external step-down transformer.

Each unit includes two dual 80A max MPPT solar chargers and supports up to three units in parallel (parallel kit built-in). The inverter offers high programmability via its LCD menu and supports both 50Hz and 60Hz operation, as well as dual AC or DC priority modes. It also features a generator starter dry contact and comes with the WatchPower monitoring program.

Figure 1.1: Front view of the LV6048 MPP Solar Inverter, showcasing its compact design and integrated display panel.

2. Key Features

• Output Versatility: Capable of producing 110V/120V Single Phase, 120V/240V Split Phase, 208V Split Phase, and 208V 3-Phase output.
• High Power Output: Max continuous 6000W 48Vdc battery-based pure sine wave solar inverter.
• Integrated MPPT Chargers: Built-in dual 2x 80A 3-stage MPPT solar chargers, supporting up to 8KW PV array in total with a max PV input of 145V open circuit.
• Operational Modes: Dual AC and DC priority modes allow operation as a UPS or battery/solar inverter with backup options.
• Frequency Support: Supports both 50Hz and 60Hz load through LCD programming.
• Generator Compatibility: Built-in genset starter dry contact feature for use with generators (inverter-type generators with remote start function required).
• Monitoring Software: Bundled monitoring software compatible with Windows, Mac, and Linux operating systems.
• Parallel Capability: Supports up to 3 units in parallel with built-in parallel kit.

Figure 2.1: Diagram highlighting key features such as max 6kW output, 48VDC system, 60A utility charger, dual 80A MPPT, and parallel capability.

3. Product Overview and Components

The LV6048 inverter features a clear LCD display for status monitoring, LED indicators for AC/INV, CHG, and FAULT, and intuitive function keys (ESC, UP, DOWN, ENTER) for navigation and settings adjustment.

Figure 3.1: Detailed product overview showing the LCD display, LED indicators, function keys, and rear panel connections including AC input, AC output, parallel ID, RS232 port, PV input, genset starter, power switch, battery input, circuit breaker, and USB port. Dimensions are approximately 623mm (height) x 610mm (width).

4. Installation and System Wiring Concept

Proper installation is crucial for the safe and efficient operation of the LV6048 inverter. The system is designed to integrate with solar panels, batteries, utility grid, and a generator to provide power to home appliances.

Figure 4.1: Conceptual diagram illustrating the wiring of the solar power system, including solar panels, inverter, battery bank, utility grid connection, generator, and household loads. This diagram provides a high-level overview of component interconnection.

4.1. Operation Voltage Configurations

The LV6048 inverter supports various output voltage configurations to suit different regional power standards:

• Single Phase L1-N/L2-N = 120V: Standard 120V output.
• Split Phase L1-L2 = 208V: For 208V split phase applications.
• Split Phase L1-L2 = 240V: For 240V split phase applications.

Figure 4.2: Diagrams illustrating the grid input and grid output configurations for 120V single phase, 208V split phase, and 240V split phase operations, showing voltage relationships between L1, L2, and Neutral.

5. LCD Menu Program

The inverter's LCD menu allows for comprehensive configuration and monitoring. Settings can be adjusted when the inverter is in standby mode and the on/off switch is in the "OFF" status.

Figure 5.1: Examples of LCD menu settings, including AC output mode (setting 28) for parallel output in single phase (120V), 3-phase (120V), and split phase (208V, 240V) configurations. These settings are crucial for adapting the inverter to specific power requirements.

6. Specifications

Detailed technical specifications for the LV6048 inverter are provided below:

Figure 6.1: Official product specification sheet for the LV6048 series, detailing standard rating, continuous output, system DC voltage, AC input voltage, maximum parallel units, PV input power, MPPT range, output waveform, and environmental conditions.

7. Monitoring Software and Optional Accessories

The LV6048 inverter comes with bundled monitoring software and supports various optional accessories to enhance functionality.

7.1. Monitoring Software

The inverter includes monitoring software, typically provided on a CD, which allows users to monitor system performance via a computer. Connection is usually made via USB or RS232 (bundled cable included).

7.2. Optional Accessories

• Remote LCD Display: For convenient monitoring from a distance (up to 15m). Note: Only specific models are supported.
• SNMP Box/Card: Enables inverter to be visible through network. Requires purchase of IP from ISP.
• WiFi Box: Allows inverter to be accessed via WiFi through AP mode (access point) or STA mode (station mode).
• WiFi Module: Enables inverter data to be transmitted to WiFi for monitoring via iOS/Android smartphone apps.
• Parallel Kit: Required accessory for systems with parallel operation. Note: Only identical models can be paralleled together. (Standard Built-in for LV6048)

Figure 7.1: Visual representation of the monitoring software setup with an inverter and laptop, along with images of various optional accessories such as remote LCD display, SNMP box, WiFi box, and WiFi module. Also shows the standard built-in parallel kit.

8. Technical Support and Warranty

For technical assistance and warranty claims, please follow the procedure outlined below.

8.1. Technical Support Procedure

1. Problem Found: Identify the issue with the inverter.
2. Email Tech Support: Contact technical support via email.
3. Technical Evaluation and Solution: Support will evaluate the problem and provide a solution.
4. Send Replacement Hardware (if needed): If a replacement is necessary and no return is required, hardware will be sent.
5. Return Required (RMA): If a return is required, obtain a Return Merchandise Authorization (RMA) number.
6. Ship Package: Ship the package to the designated service facility (e.g., in Taiwan).
7. Service or Refund: The unit will be serviced, or a refund will be processed.

8.2. Warranty Information

The product comes with an International 1 Year Warranty. Please refer to the official MPP Solar website for detailed warranty terms and conditions.

Figure 8.1: Flowchart detailing the technical support and RMA (Return Merchandise Authorization) process, from problem identification to service or refund, including steps for obtaining RMA and shipping.

9. Important Notes and Disclaimers

There is no UL certification with this inverter. UL certification is typically mandatory only for Grid-Tie inverters (feed-in to grid) in the USA. However, if your State requires all inverters, whether Off-Grid or Grid-Tie, to be UL-compliant, then this product may not be suitable. Please verify local regulations before purchase, as returns for this reason may be subject to a maximum restocking fee of 20%.

This unit is not designed for use in countries utilizing 220-240V type power standards, such as Europe or Africa.