คู่มือการใช้งานแหล่งจ่ายไฟ LED MEAN WELL ELG-75-C700

1. บทนำ

This manual provides detailed instructions for the installation, operation, and maintenance of the MEAN WELL ELG-75-C700 Single Output Switching LED Power Supply. Please read this manual thoroughly before installation and use to ensure proper function and safety.

Image 1.1: The MEAN WELL ELG-75-C700 LED Power Supply, showing its compact metal casing and wiring connections.

2. Features and Applications

The ELG-75-C series is a 75W AC/DC LED driver featuring constant current mode and high output voltage. It operates from 180-295VAC and offers various models with different rated current ranges. Key features include:

• Constant current output with high output voltage (>60VDC).
• Universal AC input range: 180~295VAC only.
• Built-in active Power Factor Correction (PFC) function.
• High efficiency up to 93%.
• ระบายความร้อนด้วยการพาอากาศฟรี
• ระบบป้องกัน: ไฟฟ้าลัดวงจร, แรงดันไฟฟ้าเกินtage, Over temperature.
• Output current adjustable via output cable or internal potentiometer (depending on model type).
• IP67 / IP65 design for indoor or outdoor installations.
• เหมาะสำหรับแห้ง dampหรือสถานที่เปียกชื้น
• Suitable for LED lighting and street lighting applications.
• Meets 6KV surge immunity level (IEC61000-4-5).
• No load power consumption <0.5W.
• Type HL LED Driver for use in Class I, Division 2 hazardous location luminaires.

Typical applications for this power supply include LED street lighting, LED bay lighting, LED greenhouse lighting, and other Class I, Division 2 hazardous location luminaires.

ภาพที่ 2.1: จบแล้วview of the ELG-75-C series features and typical applications, including LED street lighting and greenhouse lighting. This image also contains the model encoding information.

3. Model Encoding

The model number provides information about the specific configuration of the power supply:

ELG - 75 - CXXX [A/B/D/DA]

• เอลจี: Series Name
• 75: Output wattagอี (75W)
• ซีเอ็กซ์เอ็กซ์: Constant Current Output (e.g., C700 for 700mA)
• ชนิดว่างเปล่า: IP67 rated. Cable for I/O connection.
• ประเภท: IP65 rated. Constant current level adjustable through internal potentiometer.
• B-ประเภท: IP67 rated. Built-in 3-in-1 dimming function (0~10VDC, PWM signal, or resistance).
• D-Type (option): IP67 rated. Smart Timing Dimming function.
• DA-Type (option): IP67 rated. DALI function.

Refer to Image 2.1 for a visual representation of the model encoding structure.

4. ข้อมูลจำเพาะ

Detailed electrical and environmental specifications for the ELG-75-C series are provided below. Note that the ELG-75-C700 is specifically rated for 700mA output.

Image 4.1: Detailed specifications table for the ELG-75-C series, including output, input, protection, environment, safety, EMC, and other parameters.

5. การตั้งค่าและการติดตั้ง

Proper installation is crucial for the safe and reliable operation of the LED power supply. Refer to the mechanical specifications for dimensions and mounting options.

5.1 การเชื่อมต่อสายไฟ

• อินพุต (AC): Connect the AC input wires (Blue for Neutral, Brown for Line) to your main power source. Ensure the input voltage อยู่ในช่วงที่กำหนด 180-295VAC
• เอาท์พุท (DC): Connect the DC output wires (Black for -V, Red for +V) to your LED lighting fixture. Observe correct polarity.
• การต่อลงดิน: Ensure the power supply is properly grounded to prevent electrical hazards.

5.2 การติดตั้ง

• Mount the power supply in a location that allows for adequate air circulation to facilitate cooling by free air convection.
• The unit is IP67/IP65 rated, making it suitable for indoor or outdoor installations, including dry, dampหรือสถานที่เปียกชื้น
• Refer to the mechanical drawings in Section 11 for mounting hole dimensions and overall unit size.

For detailed installation instructions, please refer to the official MEAN WELL installation manual available on their webเว็บไซต์: meanwell.com/webnet/search/InstallationSearch.html

Image 5.1: Mechanical specifications for B-Type/DA-Type models and a reference to the online installation manual.

6. คู่มือการใช้งาน

6.1 การทำงานพื้นฐาน

Once properly installed and connected, the ELG-75-C700 will provide a constant current output to the connected LED load. Ensure the LED load's voltage requirements fall within the power supply's constant current region (53~107V for C700 model).

6.2 Output Current Adjustment (A-Type)

For A-Type models, the constant current level can be adjusted via an internal potentiometer. This allows fine-tuning of the output current within the specified adjustment range (350~700mA for C700 A-Type).

6.3 Dimming Operation (B-Type)

B-Type models feature a 3-in-1 dimming function, allowing adjustment of the output current via 0~10VDC, PWM signal, or resistance. The dimming wires are typically DIM+ (Blue) and DIM- (White).

• 0~10VDC Dimming: Connect a 0~10VDC dimmer to the DIM+ and DIM- terminals. 0V typically corresponds to 0% output, and 10V to 100% output.
• PWM Signal Dimming: Connect a PWM signal source to the DIM+ and DIM- terminals. The frequency range for PWM dimming is typically 100Hz ~ 3KHz.
• Resistance Dimming: Connect a variable resistor (potentiometer) between DIM+ and DIM-. The resistance value will determine the output current level.

Caution: Do not connect "DIM-" to "-V" (output negative terminal).

Image 6.1: Diagram illustrating the dimming operation for B-Type models, showing connections for 0-10VDC, PWM, and resistance dimming, along with corresponding characteristic curves.

7. ลักษณะการทำงาน

7.1 Block Diagram, Derating Curve, and Static Characteristics

The internal block diagram illustrates the functional stages of the power supply, including EMI filter, PFC circuit, power switching, rectifiers & filter, and protection circuits (O.T.P., O.L.P., O.V.P.). The derating curve indicates the maximum permissible output load as a function of the case temperature (Tcase). The static characteristics graph shows the relationship between output load and input voltage, demonstrating stable output performance across the input voltagช่วงอี

Image 7.1: This image displays the functional block diagram of the ELG-75-C series, the derating curve showing load percentage versus case temperature, and the static characteristics graph illustrating load percentage เทียบกับปริมาณอินพุตtage.

7.2 Power Factor, Efficiency, and Driving Methods

The power factor characteristic graph illustrates the power factor (PF) at different load levels for various input voltages (277V and 230V), highlighting the built-in active PFC function. The efficiency vs. load graph demonstrates the power supply's efficiency at different load percentages, showing that the ELG-75-C series achieves high efficiency, up to 93%. The ELG-75-C series is designed to operate in constant current mode (CC) to drive LED modules, as shown by the typical LED power supply I-V curve which includes the constant current area and hiccup protection.

Image 7.2: This image presents graphs for the power factor characteristic, efficiency versus load, and the typical I-V curve for driving LED modules.

8. การบำรุงรักษา

The ELG-75-C700 LED power supply is designed for reliable operation with minimal maintenance. Follow these guidelines:

• การทำความสะอาด: Periodically inspect the unit for dust or debris accumulation, especially around cooling surfaces. Clean with a soft, dry cloth if necessary. Ensure power is disconnected before cleaning.
• การตรวจสอบ: Regularly check wiring connections for any signs of damage, corrosion, or loose terminals.
• สิ่งแวดล้อม: Ensure the operating environment remains within the specified temperature and humidity ranges to prevent premature failure.
• No User-Serviceable Parts: Do not attempt to open or repair the power supply. Doing so will void the warranty and may expose you to hazardous voltagใช่

9 การแก้ไขปัญหา

If you encounter issues with your ELG-75-C700 power supply, consider the following common troubleshooting steps:

• ไม่มีกำลังขับ:
  • Verify that the AC input power is connected and within the specified voltagช่วง e (180-295VAC)
  • Check for tripped circuit breakers or blown fuses in the input line.
  • ตรวจสอบให้แน่ใจว่าการเชื่อมต่อสายไฟทั้งหมดมีความปลอดภัยและถูกต้อง
  • The unit may be in protection mode (e.g., short circuit, over voltage, over temperature). Disconnect power, wait a few minutes, and reapply.
• LEDs Flickering or Dim:
  • Check the LED load for proper connection and ensure it is compatible with the power supply's constant current output.
  • If using a dimming function (B-Type), verify the dimmer is correctly connected and functioning. Ensure DIM- is not connected to -V.
  • Confirm the ambient temperature is within the operating range to avoid thermal derating.
• ความร้อนสูงเกินไป:
  • Ensure adequate ventilation around the power supply. Do not obstruct airflow.
  • Verify the load is not exceeding the rated power of the unit.
  • Check the ambient temperature.

If the problem persists after performing these checks, contact qualified service personnel or MEAN WELL technical support.

10. ข้อมูลด้านความปลอดภัย

คำเตือน: เสี่ยงต่อการเกิดไฟฟ้าช็อต การติดตั้งและการซ่อมบำรุงควรดำเนินการโดยบุคลากรที่มีคุณสมบัติเท่านั้น

• ควรตัดการเชื่อมต่อไฟฟ้าทุกครั้งก่อนการติดตั้ง การบำรุงรักษา หรือการแก้ไขปัญหา
• ตรวจสอบให้แน่ใจว่ามีการต่อสายดินของตัวเครื่องอย่างเหมาะสม
• Do not operate the power supply beyond its specified ratings (voltage. กระแสไฟฟ้า อุณหภูมิ)
• Do not expose the unit to excessive moisture or extreme temperatures outside its operating range.
• ตรวจสอบให้แน่ใจว่าสายไฟทั้งหมดเป็นไปตามมาตรฐานไฟฟ้าในท้องถิ่นและระดับชาติ
• This device is a Type HL LED Driver for use in Class I, Division 2 hazardous location luminaires. Adhere to all relevant safety standards for such environments.

11. ข้อมูลจำเพาะทางกล

The following diagrams provide the mechanical dimensions and outlines for different types of the ELG-75-C series power supplies. All dimensions are in millimeters (mm).

11.1 Blank-Type / D-Type and A-Type

Image 11.1: Mechanical drawings for Blank-Type, D-Type, and A-Type ELG-75-C series models, showing dimensions, case temperature measurement point, and the location of the internal potentiometer for A-Type.

11.2 B-Type / DA-Type

Image 11.2: Mechanical drawing for B-Type and DA-Type ELG-75-C series models, showing dimensions and dimming wire connections.

12. การรับประกันและการสนับสนุน

The MEAN WELL ELG-75-C700 LED Power Supply comes with a รับประกัน 5 ปี ตั้งแต่วันที่ซื้อ การรับประกันนี้ครอบคลุมถึงข้อบกพร่องในวัสดุและฝีมือการผลิตภายใต้การใช้งานปกติ

For warranty claims, technical support, or further assistance, please contact your authorized MEAN WELL distributor or visit the official MEAN WELL webเว็บไซต์สำหรับข้อมูลการติดต่อ

เป็นทางการ Webเว็บไซต์: www.meanwell.com