User Manual for Photonic Universe 1.5KW/3KW/5KW Solar Inverter/Charger

Quick guide from the manual

This document provides essential instructions for the installation, operation, and maintenance of the Photonic Universe 1.5KW, 3KW, and 5KW solar inverter/charger. This unit is a multi-function device combining an inverter, solar charger, and battery charger. It is designed for indoor use on non-combustible surfaces only.

Safety Instructions

• Only qualified personnel should install this device.
• Use only deep-cycle lead-acid rechargeable batteries.
• Ensure the system is connected to a permanent grounded wiring system.
• Do not connect grounded PV modules to the inverter as this causes current leakage.
• Use a PV junction box with surge protection to prevent lightning damage.

Installation

Mounting the Unit

• Mount on a solid, non-combustible surface (e.g., concrete).
• Install at eye level for easy LCD reading.
• Ensure proper air circulation: allow approx. 20 cm to the sides and 50 cm above and below the unit.
• Maintain ambient temperature between 0°C and 55°C.

Wiring Connections

• Battery Connection: Install a separate DC over-current protector between the battery and inverter. Use recommended cable sizes (1*6AWG for 1.5KW; 1*2AWG for 3KW/5KW). Ensure correct polarity.
• AC Input/Output: Install a separate AC breaker between the inverter and the AC source (16A for 1.5KW, 32A for 3KW, 50A for 5KW). Connect Ground (yellow-green), Line (brown/black), and Neutral (blue).
• PV Connection: Install a separate DC circuit breaker between the inverter and PV modules. Ensure PV open circuit voltage does not exceed the inverter's maximum limit.

Operation

Display Panel

The front panel features an LCD display, status indicators, and function keys. The LCD provides real-time data on input/output power, battery status, and system settings.

LCD Settings

To enter setting mode, press and hold the Enter button for 3 seconds. Use Up/Down keys to navigate programs and Enter to confirm.

• Program 01 (Output Source Priority): Choose between Utility first, Solar first, or SBU (Solar-Battery-Utility) priority.
• Program 02 (Max Charging Current): Configure total charging current (utility + solar).
• Program 05 (Battery Type): Select AGM, Flooded, or User-Defined.
• Program 16 (Charger Source Priority): Set priority for battery charging sources.

Battery Equalization

This function reverses negative chemical effects like stratification and sulfation. Enable it in Program 30. You can set the interval in Program 35 or activate it immediately in Program 36.

Troubleshooting

• Unit shuts down during startup: Battery voltage too low (<1.91V/Cell). Recharge or replace battery.
• No response after power on: Battery voltage too low (<1.4V/Cell) or internal fuse tripped. Check fuse, recharge or replace battery.
• Mains exist but unit in battery mode: Input protector tripped or insufficient AC quality. Check AC breaker and wiring.
• Buzzer beeps/Red LED on: Check the fault code on the LCD. Common codes include 07 (Overload), 05 (Short circuit), and 02/03 (Temperature/Battery issues).

Technical Specifications

The inverter supports pure sine wave output. Key parameters vary by model (1.5KW, 3KW, 5KW). Refer to the full manual for detailed tables regarding Line Mode, Inverter Mode, and Charge Mode specifications.