Twnwnekk XY6550 DC Adjustable Power Supply Module User Manual

1. Introduction

The Twnwnekk XY6550 is a high-performance CNC DC adjustable voltage and constant current power supply module. Designed for precision applications, it offers a wide input voltage range of 12.00V to 70.0V and provides an adjustable output voltage from 0V to 65.00V, with an output current up to 50.00A and a maximum power of 3250W. This module features advanced protection mechanisms and communication capabilities, making it suitable for various electronic projects and power management tasks.

2. Key Features

• Supports firmware updates, solar MPPT charging, and serial communication.
• Equipped with two intelligent, temperature-controlled PWM fans for continuous speed adjustment, low noise, and large area heat sinks for efficient cooling.
• Features input reverse polarity protection and output backflow prevention for enhanced safety and functionality.
• Utilizes common-mode input to significantly reduce input power ripple, ensuring a low ripple output.
• Onboard 485 communication enables remote multi-machine control and enhanced functions with PC software.
• Independent dual serial ports (usable simultaneously) featuring serial TTL level communication and onboard 485 communication.

3. Safety Information

Please read and understand all safety instructions before operating this device. Failure to follow these instructions may result in electric shock, fire, or serious injury.

• WARNING: Do not connect AC power to the input terminals, especially 220V AC electricity. This device is designed for DC input only.
• CAUTION: This is a step-down power supply. The maximum output voltage is approximately 94.5% of the input voltage. Ensure your input voltage is sufficient for your desired output.
• Ensure proper ventilation during operation to prevent overheating.
• Always connect the input and output terminals correctly, observing polarity.
• Do not operate the module in wet or damp conditions.
• Keep out of reach of children.

4. Product Overview and Components

The XY6550 module is designed for robust performance and ease of use. Below are diagrams illustrating its key components and features.

Figure 4.1: XY6550 Bare Board Overview. This image shows the main components of the XY6550 module, highlighting its output voltage range of 0-65V and output current of 0-50A. It also indicates input reverse polarity protection, output backflow prevention, independent dual serial ports, and UART_TTL communication with onboard 485 communication. Note: When purchasing a bare board, switches, potentiometers, and dial switches are welded on. If a set with a screen meter is purchased, they are not welded by default.

Figure 4.2: XY6550 Component Layout. This diagram labels various components including input common-mode inductors for ripple reduction, high-power/high-temperature resistant iron-silicon-aluminum magnetic ring inductors, output 2-stage filtering RC filter, magnetic latching relay, power switch (hard switch ON/OFF), MPPT hardware switch with indicator light, 10k NTC 3950B external temperature sensor interface, and the serial communication interface (GND, RX, TX, 5V).

Figure 4.3: Communication Interfaces and Current Adjustment. This image details the serial communication interface and 485 communication interface. It also shows the MPPT ON/OFF switch and DIP switches for setting constant current values from 0.5A to 30A. The bare board supports independent use, MPPT, 0.3-10V analog control, serial communication, and onboard 485 communication. The output voltage is adjustable from 0-65V, and output current from 0-30A. Analog control is only available in numerical control screen mode. The advantage of setting constant current via DIP switch is eliminating the need for a multimeter's current range for measurement, avoiding potential burnout from insufficient range.

Figure 4.4: Low-Cost Communication Power Supply. This diagram illustrates how onboard 485 communication enables remote multi-machine control via an 485 bus. It highlights the independent dual serial ports (usable simultaneously) featuring serial TTL level communication and onboard 485 communication, providing a low-cost solution for communication control.

Figure 4.5: Optimized Dual-Fan Thermal Architecture. This image showcases the dual intelligent temperature-controlled fans, designed for low noise, high lifespan, collaborative operation, and efficient, stable cooling. One fan focuses on point-to-point cooling of high-heat components (MOSFETs, inductors), while the other optimizes heat dissipation across the entire heatsink to prevent thermal accumulation. This architecture reduces temperature by 20-30% (based on typical test data), extends product lifespan, supports continuous full-power operation, and excels in high-load scenarios.

5. Setup Instructions

1. Input Power Connection: Connect your DC power source (12.00V to 70.0V) to the IN+ and IN- terminals. Ensure correct polarity. Refer to Figure 4.2 for terminal locations.
2. Output Load Connection: Connect your load to the OUT+ and OUT- terminals. Observe correct polarity.
3. External Temperature Sensor (Optional): If using, connect the 10k NTC 3950B external temperature sensor to its designated interface (refer to Figure 4.2).
4. Serial Communication (Optional): For serial communication, connect your device to the Serial Communication Interface (GND, RX, TX, 5V) or the 485 communication interface as shown in Figure 4.3.
5. MPPT Function: If using for solar charging, ensure the MPPT hardware switch is in the ON position (refer to Figure 4.2). An indicator light will illuminate upon activation.
6. Current Limit Setting: Adjust the output current limit using the DIP switches as detailed in Figure 4.3. Select the desired current range (e.g., 0.5A, 2.5A, 5A, up to 30A).

6. Operating Instructions

1. Power On: After all connections are secure, turn on the power using the hard switch (ON/OFF) located on the module (refer to Figure 4.2).
2. Voltage Adjustment: The output voltage can be adjusted from 0V to 65.00V. Use the integrated controls or serial communication for precise voltage setting.
3. Current Adjustment: The output current can be adjusted from 0A to 50.00A. The constant current value can be set via the DIP switches (Figure 4.3) or through the potentiometer in potentiometer mode.
4. Monitoring: Monitor the output voltage, current, and power through the connected display or via serial communication.
5. Protection Settings: The module includes various protection mechanisms. Familiarize yourself with the default settings and adjust them as needed via the control interface (if available) or serial commands. These include:
   • Input Undervoltage Protection (UVP): Default 10V (adjustable 10-75V)
   • Output Overvoltage Protection (OVP): Default 67V (adjustable 0-67V)
   • Output Overcurrent Protection (OCP): Default 52A (adjustable 0-52A)
   • Overpower Protection (OPP): Default 3300W (adjustable 0-3400W)
   • Overtemperature Protection (OTP): Default 110°C (adjustable 60-110°C)
   • Over-time Protection (OHP): Default OFF (adjustable 1 minute - 99 hours 59 minutes)
   • Overcapacity Protection (OCP): Default OFF (adjustable 0-4200 KAh)
   • Over-energy Protection (OWH): Default OFF (adjustable 0-4200 KWh)
   • External Overtemperature Protection (EOTP): Default OFF (adjustable 0-110°C)
6. MPPT Operation: When the MPPT function is enabled, the module will automatically adjust its output to maximize power extraction from a solar panel.

7. Maintenance

• Cleaning: Keep the module clean and free from dust. Use a soft, dry cloth to wipe the surfaces. Do not use liquid cleaners or solvents.
• Ventilation: Ensure the cooling fans and heatsinks are free from obstructions to maintain optimal thermal performance. Periodically check for dust buildup and gently clean if necessary.
• Firmware Updates: The module supports firmware updates. Refer to the manufacturer's website or support documentation for instructions on how to perform updates.
• Inspection: Periodically inspect all connections for tightness and signs of wear or damage.

8. Troubleshooting

9. Specifications

10. Warranty Information

For warranty details, please refer to the specific warranty policy provided by Twnwnekk at the time of purchase or visit the official Twnwnekk website. Standard warranty terms typically cover manufacturing defects for a specified period from the date of purchase.

11. Customer Support

If you encounter any issues or have questions regarding your Twnwnekk XY6550 module, please contact the manufacturer for assistance.

Manufacturer Contact Information: Twnwnekk

Please have your product model (XY6550) and purchase details ready when contacting support.