JIRI 40A MPPT Solar Charge Controller User Manual

1. Introduction and Overview

This manual provides comprehensive instructions for the JIRI 40A MPPT Solar Charge Controller. It covers installation, operation, maintenance, and troubleshooting to ensure optimal performance and longevity of your solar power system. This controller is designed for diverse off-grid applications, supporting various battery types and system voltages from 12V to 96VDC, with a maximum PV input of 240V.

Figure 1: JIRI 40A MPPT Solar Charge Controller

2. Key Features

• Wide Compatibility: Supports LiFePO4, NMC Lithium, AGM, Gel, Sealed, and Flooded batteries. Compatible with 12V/24V/36V/48V auto and 60V/96V/120V manual systems.
• High-Voltage PV Input: Max 240V PV input allows for longer solar panel strings, reducing wiring costs and supporting high-power arrays up to 4800W (120V system).
• Comprehensive Multi-Protection System: Built-in safety features include PV/battery reverse polarity, short-circuit, overload, over-temperature, over-charge/discharge, nighttime reverse current, and TVS lightning protection.
• Real-Time LCD Monitoring & Diagnostics: Backlit LCD displays real-time data such as PV voltage/current/power, battery voltage, charging status, temperature, and fault alerts.
• BMS Auto-Recovery: Automatically revives batteries from BMS protection mode using available solar power, eliminating manual resets for remote locations.
• Smart Cooling Fan: Real-time temperature monitoring with a fan that adjusts speed based on temperature (slow below 42°C, fast above 45°C) to extend inverter life.
• Fireproof Steel Armor Design: Features 1.0mm steel with electrostatic triple-shield coating for anti-rust, corrosion, and wear defense.
• RS485 Communication Port: Open Modbus Protocol, expandable to WiFi/4G remote control.

3. Specifications

Figure 2: Product Dimensions and Key Specifications

4. Setup and Installation

Proper installation is crucial for the safe and efficient operation of your JIRI MPPT Solar Charge Controller. Follow these steps carefully:

4.1 Mounting the Controller

• Mount the controller vertically on a non-flammable surface, ensuring adequate airflow around the unit.
• Maintain a minimum clearance of 75mm (3 inches) on all sides (top, bottom, left, right) for proper heat dissipation.
• Use appropriate screws to secure the controller firmly to the mounting surface.

4.2 Wiring Sequence

Connect the components in the following sequence to ensure safety and proper functionality:

1. Connect the Battery: Connect the battery to the controller's battery terminals (BAT+ and BAT-). Ensure correct polarity.
2. Connect the PV Array: Connect the solar panel array to the controller's PV terminals (PV+ and PV-). Ensure correct polarity.
3. Connect the DC Load: Connect any DC loads to the controller's load terminals (OUT+ and OUT-). Ensure correct polarity.

Note: Non-sequential connection does not affect functionality, but following this order is recommended for safety compliance.

Figure 3: Recommended Wiring Diagram

5. Operating Instructions

The JIRI MPPT Solar Charge Controller features an intuitive LCD display and control buttons for easy operation and monitoring.

5.1 LCD Display and Buttons

The backlit LCD provides real-time system data. Use the buttons (SET/RET, Up, Down, ENTER) to navigate menus and adjust settings.

Figure 4: LCD & LED Display for real-time data

Figure 5: Display Parameters Overview

5.2 Battery Type Settings

The controller supports various battery types. You can select the appropriate type from the settings menu:

• Lead-Acid Battery
• Gel Battery
• LiFePO4 Battery
• Li-ion (NMC Lithium) Battery
• USER (Customizable settings for other battery types)

For 'USER' mode, you can manually adjust boost, float, recovery, and over-discharge voltages (7-170VDC) to perfectly match your battery's requirements.

Figure 6: Smart HMI Display for Battery Type and Other Settings

5.3 System Voltage

The controller can auto-detect 12V/24V/36V/48V systems. For 60V/72V/84V/96V/108V/120V systems, manual configuration is required.

Figure 7: Wide Battery Voltage Compatibility

6. Maintenance

Regular maintenance ensures the longevity and optimal performance of your solar charge controller.

• Cleaning: Periodically clean the controller's exterior and ventilation openings to prevent dust buildup, which can hinder cooling.
• Connection Checks: Regularly inspect all wiring connections (PV, battery, load) to ensure they are tight and free from corrosion.
• Environmental Conditions: Ensure the controller is installed in a well-ventilated area, away from direct sunlight, moisture, and corrosive gases. The smart cooling fan helps maintain optimal operating temperature.
• Firmware Updates: Check the manufacturer's website for any available firmware updates to improve performance or add new features.

Figure 8: Smart Cooling Fan for extended life

Figure 9: Durable Fireproof Steel Armor Design

7. Troubleshooting

The controller is equipped with a comprehensive multi-protection system and diagnostic display to help identify and resolve issues.

• No Power/Display Off: Check battery connections and voltage. Ensure the battery is adequately charged.
• No Charging: Verify PV array connections and ensure sufficient sunlight. Check PV voltage on the display.
• Fault Alerts: The LCD will display fault codes or alerts for issues like PV/battery reverse polarity, short-circuit, overload, over-temperature, over-charge/discharge, and nighttime reverse current. Refer to the specific fault code in the full manual for detailed resolution steps.
• BMS Lockouts: The controller features an intelligent Li-ion Battery Activator that automatically revives batteries from BMS protection mode using solar power.

Figure 10: True Unattended Operation with Li-ion Battery Activator

8. Warranty and Support

The JIRI 40A MPPT Solar Charge Controller includes a 24-month warranty. For any technical assistance, troubleshooting, or warranty claims, please contact JIRI customer service. The product is certified by CE, RoHS, and FCC, ensuring quality and safety compliance.

For further information or support, please visit the official JIRI website or contact your local distributor.