PowMr 5000W Hybrid Solar Inverter User Manual

1. Product Overview

The PowMr 5000W Hybrid Solar Inverter is an all-in-one solution integrating solar energy storage, grid charging, and pure sine wave AC output. It features an advanced 100A MPPT controller for efficient solar power utilization.

Figure 1.1: Front view of the PowMr 5000W Hybrid Solar Inverter.

Key Features:

• 5000W Pure Sine Wave Output: Provides stable and clean power for various loads.
• 100A MPPT Controller: Maximizes solar energy harvesting with up to 99.9% efficiency.
• Versatile Voltage Output: Supports 110V/120V/208V/240V AC, including single, split, and three-phase configurations.
• Parallel Capability: Up to 6 units can be connected in parallel for a total output of up to 30000W.
• Battery Compatibility: Compatible with AGM, Gel, Lead-acid, Lithium-ion, and LiFePO4 batteries. Supports batteryless mode.
• Multiple Charging & Output Modes: Four charging modes (Solar Only, Mains Priority, Solar Priority, Hybrid Charging) and two output modes (Utility bypass and inverter output).
• Time-Slot Control Function: Allows setting specific charging/discharging periods based on local tariffs.
• Comprehensive Protection: Includes short circuit, over/under voltage, overload, and backfill protection.

Figure 1.2: Overview of the inverter's main features including power, MPPT, battery support, and parallel capability.

2. Safety Information

Please read all instructions and cautionary markings on the unit and in this manual before installation and operation. Failure to follow these instructions may result in electric shock, fire, or severe injury.

• Installation must be performed by qualified personnel.
• Ensure all wiring is correctly sized and properly connected to prevent overheating and damage.
• Do not disassemble the inverter. There are no user-serviceable parts inside.
• Keep the inverter away from flammable materials, moisture, and direct sunlight.
• Ensure proper ventilation around the inverter to prevent overheating.

Figure 2.1: The inverter features multiple protection functions including AC reverse, overload, bypass over current, charge short, battery low/over voltage, and parallel connection error protection.

3. Setup and Installation

3.1 Physical Installation

Securely mount the inverter to a wall using M5 screws. Ensure the mounting surface is sturdy enough to support the inverter's weight (approximately 30.8 pounds).

Figure 3.1: The inverter should be securely mounted on a stable surface, ensuring adequate ventilation around the unit.

3.2 Wiring Connections

Before making any electrical connections, ensure all power sources (PV, battery, grid) are disconnected and circuit breakers are in the OFF position. Refer to the detailed port diagram below for correct connections.

Figure 3.2: Back panel of the inverter showing AC input/output, PV input, battery ports, and communication ports.

3.2.1 AC Input & Output Connection

Connect the AC input lines from your utility grid or generator to the designated AC input terminals. Then, connect your loads to the AC output terminals. Ensure appropriate circuit breakers (e.g., 3P-125A AC) are installed for safety.

Figure 3.3: Detailed wiring diagram showing connections for AC input, AC output, PV input, and battery input.

3.2.2 Battery Connection

Connect your 48V battery bank to the designated battery terminals. It is crucial to ensure that the cable lengths from both inverters to the positive and negative busbars are identical to prevent discrepancies in battery voltage readings and potential operational issues.

3.2.3 PV Input Connection

Connect your solar panels to the PV input terminals. Each inverter must be connected to an independent PV array. Do not connect a single PV array to multiple inverters, as this can cause irreversible damage to the PV boards.

3.3 Parallel Operation Setup

The PowMr 5000W Hybrid Solar Inverter supports parallel operation for increased power output and flexible phase configurations (single-phase, split-phase, three-phase). Up to 6 units can be paralleled.

Figure 3.4: Diagrams illustrating parallel connections for 2 inverters in single phase, 3 inverters in three phase, and 6 inverters in split phase. Note: Two or more inverters are required for split phase operation.

4. Operating Instructions

The inverter's LCD display provides real-time status and allows for configuration of various operating parameters.

Figure 4.1: The LCD HD display screen shows various parameters like battery capacity, load percentage, and power flow from utility, generator, solar, and home appliances.

4.1 Output Source Priority Modes (Setting Item 01)

These settings determine the sequence in which the inverter allocates solar energy, grid power, and battery power to the load.

• AC1ST (Grid Priority Mode): Grid power takes the highest priority. If grid power is unavailable, the system switches to PV priority load. If solar energy is insufficient, the battery serves as a supplement. Ideal for areas with unstable grid power, serving as a backup UPS.
• BT1ST (Inverter Output Mode): Prioritizes the use of battery and solar power to supply the load. When battery voltage drops below the undervoltage termination voltage, the inverter switches to grid power. This mode is suitable for regions with a stable grid power supply.
• PV1ST (Solar Priority Mode): Prioritizes load from solar energy, with the battery serving as a backup when solar energy is insufficient. When there is no solar energy available, the system switches to load from the grid. This mode is suitable for areas with abundant solar energy and a relatively stable grid power supply.

Figure 4.2: Visual representation of the four charging modes and three load output working modes.

4.2 Charging Source Priority Modes (Setting Item 06)

These modes define the order in which the inverter charges the battery with solar energy and grid power.

• HYBRID (Hybrid Priority): Prioritizes charging the battery with solar energy. If solar power is insufficient, the system supplements with utility power. When solar energy is available again, grid power ceases to charge the battery. Suitable for regions with unstable solar energy supply.
• AC1ST (Grid Power Priority): Grid power takes precedence for battery charging. In the absence of grid power, the inverter switches to solar power for battery charging. Suitable for areas with a relatively unstable grid power supply.
• PV1ST (Solar Priority): Prioritizes using solar power for battery charging. When solar energy is unavailable (nighttime or cloudy), grid power is utilized to maintain the battery's charge. Better suited for regions with stable grid power and relatively high electricity rates.
• ONLYPV (Solar Power Charging Only): Solely uses solar energy to charge the battery, regardless of grid power availability. Ideal for regions with abundant daylight hours.

4.3 Time-Interval Charging and Discharging Strategy

The inverter offers the flexibility to set specific time periods for battery charging and discharging (Settings items 40-45 for charging, 47-52 for discharging). This allows you to align your energy usage with local electricity consumption patterns and pricing policies, ensuring efficient utilization of your battery resources.

Figure 4.3: Diagram illustrating peak-valley electricity tariffs and how the inverter can be configured for time-controlled charging and discharging.

5. Maintenance

Regular maintenance ensures the longevity and optimal performance of your PowMr Hybrid Solar Inverter.

• Regular Cleaning: Keep the inverter's exterior clean and free from dust and debris. Ensure ventilation openings are not blocked.
• Connection Checks: Periodically inspect all electrical connections (AC, DC, battery, PV) for tightness and signs of corrosion.
• Battery Health: Monitor battery voltage and health according to battery manufacturer guidelines.
• Environmental Conditions: Ensure the operating environment remains within specified temperature and humidity ranges.

6. Troubleshooting

If you encounter issues with your inverter, refer to the following common troubleshooting tips. For more detailed fault codes and solutions, consult the official user guide.

• Inverter Shutting Off: Check battery voltage, load capacity (ensure not overloaded), and input power sources (grid/PV). Verify all connections are secure.
• No Output Power: Confirm input power sources are active, circuit breakers are ON, and battery is charged. Check for any fault codes on the LCD display.
• Parallel Operation Issues: Ensure communication cables are correctly connected (male to female), and all inverters are configured with the correct master/slave settings and phase parameters (2P0, 2P1, 2P2). Verify cable lengths for battery connections are identical.

Figure 6.1: Scan the QR codes for the comprehensive User Guide and Fault Code Reference.

7. Specifications

8. Warranty and Support

PowMr products typically come with a standard manufacturer's warranty. Please refer to the warranty card included in your product packaging for specific terms and conditions.

For technical support, troubleshooting assistance, or warranty claims, please contact PowMr customer service. You can also find additional resources, including the full user guide and fault code references, by scanning the QR codes provided in the Troubleshooting section or visiting the official PowMr website.

Visit the PowMr Store on Amazon for more products and information.