The KACO Powador LCD Display HMI Board is an original user interface module designed for three-phase photovoltaic inverters of the Powador 25000XI / 30000XI / 33000XI XL series.

This module integrates a backlit alphanumeric LCD display, navigation buttons, and status LEDs, allowing full local control and monitoring of the inverter directly from the front panel.

It enables real-time visualization of operating parameters, alarms, and production data, as well as access to configuration menus.

⚙️ Main Functions

• Display of energy production (kWh)
• Monitoring of DC and AC voltages
• Inverter status indication (ON / OFF / Fault)
• Access to configuration menus
• Diagnostics and error code display
• Navigation via integrated buttons
• Visual signaling via status LEDs

🔌 Technical Features

• Display type: Alphanumeric LCD (16×2 or similar)
• Backlight: Green LED
• Interface: Parallel (flat cable / pin header)
• Power supply: From inverter logic board

Integrated LEDs:

• Green → operation
• Green (status) → communication
• Red → error / alarm

Controls:

• 2 front buttons (menu / selection)

Electronics:

• Onboard microcontroller
• Quartz oscillator (clock signal)
• LCD driver circuitry

Connections:

• Power supply
• Communication with inverter main board

🧩 Main Visible Components

• Backlit LCD display
• Central microcontroller IC
• Quartz oscillator
• LCD driver
• Status LEDs (green/red)
• Control buttons
• Multi-pin connectors
• Signal conditioning circuits

⚠️ Typical Faults

• Display off or not illuminated
• Blank screen or unreadable characters
• Missing inverter data visualization
• Non-responsive buttons
• Inactive status LEDs
• Loss of communication with main board

🚨 Related Issues

• HMI communication errors
• Missing inverter data feedback
• Generic system errors due to display failure
• Alarms not visible on interface

🏭 Compatibility

• KACO Powador 25000XI
• KACO Powador 30000XI
• KACO Powador 33000XI
• XL three-phase versions (380 V AC)

🌐 Role within the System

This board provides:

• Direct interface between inverter and operator
• Real-time system monitoring
• Access to configuration settings
• Diagnostic support for maintenance

👉 Without this module, the inverter may still operate, but local monitoring and control are not available.

📊 Applications

• Repair of industrial photovoltaic inverters
• Replacement of faulty display units
• Maintenance of commercial PV systems
• Professional spare parts

📦 Product Condition

• Electronic display board (PCB)
• Used / refurbished
• Tested (if applicable)
• Sold as technical spare part

💡 Summary

This module is the HMI display board of KACO Powador inverters—the system’s “dashboard”, essential for monitoring, diagnostics, and local control.