HLG-240H Series LED Driver User Manual

1. Product Overview

The MEAN WELL HLG-240H-24B is a high-performance Constant Voltage + Constant Current LED driver designed for various lighting applications. This robust power supply features a built-in active Power Factor Correction (PFC) function and boasts an IP67 protection rating, making it suitable for both indoor and outdoor installations.

Key features include:

• Constant Voltage + Constant Current mode output
• Built-in active PFC function
• IP67 protection for harsh environments
• Suitable for indoor and outdoor use

Figure 1: Top view of the HLG-240H-24B LED Driver, showing input (ACN, ACL, FG) and output (Vo+, Vo-, DIM+, DIM-) terminals, and product labels. The label includes model number HLG-240H-24B, input voltage range (100-240V AC), output voltage (24V), output current (10A), and rated power (240W). It also shows IP67 rating and various safety certifications.

For more information, refer to the official product page or documentation using the serial number HB76D03271.

2. Safety Information

Please read and understand all safety instructions before installing or operating the HLG-240H-24B LED driver. Failure to follow these instructions may result in electric shock, fire, or other hazards.

• Qualified Personnel: Installation and servicing should only be performed by qualified electricians.
• Power Disconnection: Always disconnect power at the circuit breaker or fuse box before installation, maintenance, or troubleshooting.
• Proper Grounding: Ensure the driver is properly grounded according to local electrical codes.
• Ventilation: Provide adequate ventilation around the driver to prevent overheating. Do not cover the unit.
• Environmental Conditions: Ensure the operating environment is within the specified temperature and humidity ranges. While IP67 rated, avoid submerging the unit.
• Wiring: Use appropriate wire gauges for input and output connections. Ensure all connections are secure and insulated.
• Load Compatibility: Do not exceed the maximum rated output power or current of the driver.

3. Installation and Setup

The HLG-240H-24B driver is designed for easy installation. Follow these steps for proper setup:

3.1 Mechanical Installation

Mount the driver securely in a location that allows for adequate airflow and is protected from excessive heat or direct sunlight. Refer to the mechanical specifications for dimensions and mounting hole details.

Figure 2: Mechanical specifications for the HLG-240H series, including dimensions for different types (Blank/D-Type, A-Type, B-Type). The diagram shows overall length, width, height, and mounting hole positions. The HLG-240H-24B is a B-Type model, featuring a dimming cable.

3.2 Electrical Connections

Connect the driver according to the wiring diagram. Ensure correct polarity for DC output and proper AC input connections.

• AC Input: Connect the AC Live (L), Neutral (N), and Ground (FG) wires to the corresponding terminals on the driver.
• DC Output: Connect the LED fixture to the V+ (positive) and V- (negative) output terminals.
• Dimming (B-Type): For dimmable models (HLG-240H-24B), connect the DIM+ and DIM- wires to your dimming control system.

Figure 3: Example wiring diagram showing how to connect the HLG-240H LED driver to an LED lighting fixture using a switch and relay for ON/OFF control. It illustrates connections for AC input (N, FG, L) and DC output (V+, V-), along with dimming connections (DIM+, DIM-) for B-Type models.

4. Operating Instructions

The HLG-240H-24B operates in both Constant Voltage (CV) and Constant Current (CC) modes, providing flexibility for various LED applications. The dimming function allows for adjustable light output.

4.1 Driving Methods of LED Module

This series is capable of operating in either Constant Current mode (direct drive) or Constant Voltage mode (using additional DC/DC drivers). The highest voltage at the output depends on the configuration of the end system. For compatibility issues, consult MEAN WELL.

Figure 4: Top part shows the internal block diagram of the HLG-240H series LED driver, illustrating the flow from EMI filter to output. The bottom part displays a graph of typical output current normalized by rated current, indicating Constant Voltage area, Constant Current area, and Overload Protection.

4.2 Dimming Operation (B-Type)

The HLG-240H-24B (B-Type) supports 3-in-1 dimming functions: 1-10VDC, 10V PWM signal, or resistance. Output constant current level can be adjusted by applying one of these methodologies between DIM+ and DIM-.

• Applying Additive 1-10VDC: Connect a 1-10VDC signal between DIM+ and DIM-.
• Applying Additive 10V PWM Signal: Connect a 10V PWM signal (frequency range 100Hz ~ 3KHz) between DIM+ and DIM-.
• Applying Additive Resistance: Connect a variable resistance between DIM+ and DIM-.

Note: Dimming source current from power supply is 100µA (typ.). Connecting DIM- to -V is not recommended.

Figure 5: Detailed diagrams illustrating the three dimming methods for the HLG-240H series (B-Type): applying additive voltage (1-10VDC), additive PWM signal, and additive resistance. Each method is accompanied by a graph showing the relationship between the dimming input and the output current percentage.

5. Maintenance

The HLG-240H-24B LED driver is designed for long-term reliability with minimal maintenance. However, periodic checks can help ensure optimal performance and longevity.

• Cleaning: Keep the driver free from dust and debris. Use a soft, dry cloth for cleaning. Do not use liquid cleaners.
• Connection Checks: Periodically inspect all electrical connections to ensure they are secure and free from corrosion.
• Environmental Monitoring: Ensure the operating environment remains within the specified temperature and humidity limits.
• Ventilation: Verify that ventilation openings are not obstructed.

Figure 6: Life time graph for the HLG-240H series, illustrating the expected lifespan (in thousands of hours) as a function of the case temperature (Tcase in °C). This graph helps in understanding the impact of operating temperature on the driver's longevity.

6. Troubleshooting

If the LED driver is not functioning as expected, refer to the following common issues and solutions. Always disconnect power before performing any troubleshooting steps.

• No Output Power:
  • Check AC input voltage and connections.
  • Verify that the circuit breaker or fuse is not tripped.
  • Ensure the load is within the driver's specifications.
• LEDs Flickering or Dim:
  • Check output connections for loose wires or incorrect polarity.
  • Verify dimming signal (if applicable) is stable and within range.
  • Ensure the driver is not overheating; check ventilation.
• Driver Overheating:
  • Ensure adequate airflow around the unit.
  • Verify the ambient temperature is within the specified operating range.
  • Check if the load exceeds the driver's maximum power rating.
• Protection Features: The HLG-240H series includes built-in protections:
  • Over Current Protection: Recovers automatically after fault condition is removed.
  • Short Circuit Protection: Hiccup mode, recovers automatically after fault condition is removed.
  • Over Voltage Protection: Shuts down and latches off, requires power-on to recover.
  • Over Temperature Protection: Shuts down and latches off, requires power-on to recover.

Figure 7: Various performance graphs for the HLG-240H series. These include Output Load vs. Ambient Temperature, Static Characteristics (Load vs. Input Voltage), Power Factor Characteristic, Efficiency vs. Load, and Total Harmonic Distortion (THD) vs. Load. These graphs can help diagnose performance-related issues.

7. Specifications

The following table provides detailed technical specifications for the HLG-240H-24B LED driver.

Figure 8: Comprehensive specification table for the HLG-240H series LED drivers, covering input, output, protection, environment, safety standards, EMC, and other characteristics. This table provides detailed electrical and environmental parameters for various models within the series.

8. Warranty and Support

For warranty information and technical support, please refer to the official MEAN WELL website or contact your authorized distributor. The warranty period and terms may vary based on region and purchase date.

Please have your product model number (HLG-240H-24B) and serial number (if applicable) ready when contacting support.