OOYCYOO 100A MPPT Solar Charge Controller User Manual

1. Introduction

This manual provides essential instructions for the safe and efficient operation of your OOYCYOO 100A MPPT Solar Charge Controller. Please read this manual thoroughly before installation and use, and retain it for future reference. This controller is designed to optimize power harvesting from your solar panels and manage battery charging for various 12V, 24V, 36V, and 48V battery systems.

2. Safety Instructions

Ensure all wiring is correctly polarized (+ to + and - to -) to prevent damage to the controller and connected devices.
Always connect the battery first, then the solar panels, and finally the load. Disconnect in reverse order.
Install appropriate circuit breakers for each line (solar, battery, load) to protect against overcurrent.
Mount the controller in a well-ventilated area, away from direct sunlight, high temperatures, and moisture.
Do not attempt to disassemble or repair the controller yourself. Contact qualified personnel for service.
Wear appropriate personal protective equipment (PPE) during installation, including gloves and eye protection.

3. Product Overview

The OOYCYOO 100A MPPT Solar Charge Controller utilizes advanced Maximum Power Point Tracking (MPPT) technology to achieve up to 99% tracking efficiency and 98% peak conversion efficiency. It supports a wide range of battery types and system voltages, ensuring optimal charging and system protection.

Key Features:

Battery Compatibility: Supports 12V/24V/36V/48V Lead-acid (Sealed, Gel, AGM, Flooded) and Lithium batteries.
High Efficiency: Up to 99% tracking efficiency and 98% peak conversion efficiency.
Comprehensive Protection: Includes PV array short-circuit, PV input over-current, load short-circuit, PV/battery polarity reversal, and over-temperature protection.
Wide Voltage/Power Support: Max PV input voltage up to 150V. Max input power up to 5000W (for 48V system).
Efficient Cooling: Die-cast aluminum construction with a turbofan for active cooling (activates >45°C, turns off <40°C).
LCD Display: Provides real-time system information.

Component Identification:

Figure 3.1: Front and side view of the OOYCYOO MPPT Solar Charge Controller with labeled ports including Solar Panel Terminal, Battery Terminal, Load Terminal, USB ports, Remote Temp Sensor port, and RS485 Communication Port.

OOYCYOO MPPT Solar Charge Controller with detailed port labels — Figure 3.2: Detailed view of the controller's connections, including Solar, Battery, Load terminals, USB ports, Remote Temp Sensor, and RS485 Communication Port.

OOYCYOO MPPT Solar Charge Controller with dimensions — Figure 3.3: Dimensions of the OOYCYOO MPPT Solar Charge Controller (W15CM, H40CM, L26CM).

4. Setup and Installation

4.1 Mounting the Controller

Mount the controller vertically on a wall or suitable surface using screws. Ensure there is ample space around the controller for proper heat dissipation. Avoid mounting in direct sunlight or areas with high humidity.

4.2 Wiring Connections

Follow the connection order carefully to prevent damage. Always connect the battery first, then the solar panels, and finally the load.

Battery Connection: Connect the battery positive and negative terminals to the controller's BATTERY terminals. Ensure correct polarity.
Solar Panel Connection: Connect the solar array positive and negative terminals to the controller's SOLAR terminals. Ensure correct polarity.
Load Connection: Connect the DC load positive and negative terminals to the controller's LOAD terminals. Ensure correct polarity.

Solar Controller Installation Diagram — Figure 4.1: A typical wiring diagram showing connections from solar panels to the MPPT controller, then to the battery, and finally to a load (e.g., an inverter or DC appliances).

4.3 Battery Type Selection

After initial power-up, configure the battery type on the controller's LCD display. The controller supports Lead-acid (Sealed, Gel, AGM, Flooded) and Lithium batteries. Refer to the detailed operating instructions for navigating the menu and selecting the appropriate battery type.

4.4 Parallel Communication Setup (Optional)

For systems requiring multiple charge controllers, parallel communication can be established. This allows controllers to synchronize their operations. The following video demonstrates the process:

Video 4.1: This video provides a guide for setting up parallelism for MPPT controllers, demonstrating how to connect multiple units and configure them for synchronized operation. It shows mounting, wiring, and setting the parallel code on the main controller, which then synchronizes with slave controllers.

5. Operating Instructions

5.1 LCD Display Information

The LCD display provides real-time monitoring of your solar system's status. Information typically includes:

PV Input Voltage and Power
Battery Voltage and Charging Current
Load Output Current and Power
Battery Temperature
System Status and Error Codes

LCD Display Screen Information Summary — Figure 5.1: Summary of information displayed on the LCD screen, including solar input, battery status, and load output. It also shows battery type indicators and fault warnings.

5.2 Button Functions

The controller features several buttons for navigation and settings adjustment:

PV/SET: Used to view PV parameters and enter/save settings.
BAT/▲: Used to view battery parameters and increase values in settings.
BAT/▼: Used to view battery parameters and decrease values in settings.
LOAD/5S RESET: Used to control load output and perform a 5-second reset.

For detailed operation and setting adjustments, refer to the specific instructions in the full product manual.

5.3 General Operation Demonstration

The following videos provide visual demonstrations of the controller's basic operation and connection procedures:

Video 5.2: This video from OOYCYOO demonstrates the basic wiring and display functions of an MPPT solar charge controller, showing connections to solar panels, battery, and load, and how to read the display.

Video 5.3: This video demonstrates the easy operation of an MPPT solar charge controller, including connecting components and observing the display for charging status.

6. Maintenance

6.1 Cooling System

The controller is equipped with a die-cast aluminum casing and a turbofan for efficient heat dissipation. The fan activates automatically when the internal temperature exceeds 45°C and turns off when it drops below 40°C. Ensure the ventilation openings are clear of obstructions to maintain optimal cooling performance.

MPPT Charging Efficiency and Cooling — Figure 6.1: Illustration highlighting the 99% conversion efficiency of MPPT charging and the internal components contributing to efficient heat dissipation, including the turbofan.

6.2 General Care

Regularly inspect all wiring connections for tightness and corrosion.
Keep the controller clean and free from dust and debris. Use a dry cloth for cleaning.
Periodically check the battery terminals for any signs of wear or damage.

7. Troubleshooting

This section provides guidance for common issues. For complex problems, consult the full product manual or contact customer support.

Common Issues:

No Power/Display: Check battery connections and ensure the battery circuit breaker is closed.
No Charging: Verify solar panel connections, ensure sufficient sunlight, and check for any PV array short-circuits.
Load Not Working: Check load connections, ensure the load output is enabled, and verify the load is not exceeding the controller's capacity.
Error Codes: Refer to the specific error code definitions in the comprehensive manual for diagnostic steps.

Multiple Protection Features — Figure 7.1: Visual representation of the multiple protection features integrated into the MPPT Solar Charge Controller, including high temperature, overcharge, reverse current, over discharge, overload, short circuit, and reverse polarity protection.

Multiple Protections for Solar System Security — Figure 7.2: An overview of the comprehensive protection mechanisms, such as PV over current/power, PV short circuit, PV reverse polarity, battery over discharge, battery/controller overheating, battery reverse polarity, lithium battery low temperature, load short circuit, TVS high voltage transients, night reverse charging, battery over voltage, and load overload.

8. Specifications

Feature	Specification
Brand	OOYCYOO
Model Number	100A 48V 36V 24V 12V
System Voltage	12V/24V/36V/48V Auto
Max PV Input Voltage	150V
Max Input Power (12V System)	1200W (PV input voltage range: DC20V~DC80V)
Max Input Power (24V System)	2400W (PV input voltage range: DC37V~DC105V)
Max Input Power (36V System)	3600W (PV input voltage range: DC50V~DC150V)
Max Input Power (48V System)	4800W (PV input voltage range: DC72V~DC150V)
Battery Types Supported	Lead-acid (Sealed, Gel, AGM, Flooded), Lithium
Tracking Efficiency	Up to 99%
Conversion Efficiency	Up to 98%
Cooling	Die-cast aluminum with turbofan
Display Type	LCD
Item Weight	8.58 pounds
Package Dimensions	15.75 x 10.24 x 5.91 inches
Material	Aluminum

Solar system application scenarios and PV input power limits — Figure 8.1: Examples of solar system applications (RV, commercial vehicles, boats, yachts, solar systems) and corresponding maximum open circuit voltage and PV input power for 12V, 24V, and 48V battery systems.

9. Warranty Information

Please refer to the product packaging or the official OOYCYOO website for detailed warranty terms and conditions. Typically, products are covered against manufacturing defects for a specified period from the date of purchase.

10. Customer Support

For technical assistance, troubleshooting, or any inquiries regarding your OOYCYOO MPPT Solar Charge Controller, please contact OOYCYOO customer support through the vendor's contact information provided at the point of purchase or on their official website.

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