XY8050S CNC DC Buck Power Supply User Manual

1. Product Overview

The diymore XY8050S is a high-performance CNC DC Buck Power Supply designed for precise voltage and current regulation. It features a full-view 1.8-inch high-brightness true-color LCD screen, supporting self-color matching and four-way rotation for enhanced usability. This module offers comprehensive protection features and supports advanced functionalities like MPPT solar charging and serial communication.

2. Key Features

• Firmware Upgrade Support: Allows for future enhancements and bug fixes.
• MPPT Solar Charging: Integrated Maximum Power Point Tracking for efficient solar energy utilization.
• Serial Communication: Supports standard Modbus protocol for versatile communication.
• Advanced Display: 1.8-inch high-brightness true-color LCD with customizable colors and 4-way rotation.
• Comprehensive Protection: Includes input reverse connection protection and output backflow prevention.
• Durable Design: Gold-plated display board for anti-oxidation, better conductivity, and extended durability.
• Efficient Cooling: Two intelligent temperature-controlled PWM fans with stepless speed regulation, low noise, and a large heat sink.
• Low Ripple Output: Input common-mode inductors reduce power supply ripple.
• Independent Dual Serial Ports: TTL-level serial communication and onboard 485 communication.
• Remote Control: Supports control via numeric keypad, infrared, and 433M wireless remote control modules.
• Network Control: LAN penetration, real-time communication, remote control via external network, email notification, cloud record (with optional WiFi module).
• Constant Voltage/Current/Power (CV/CC/CW) Modes: Adaptable to various load requirements.
• Automatic Charging Functions: BCH automatic charging and BTF full-charge auto-stop for unattended operation.

3. Setup and Installation

3.1 Package Contents

The standard package (Package A) includes:

• 1 x XY8050S Adjustable Power Supply Module
• 1 x Meter Head (Display Module)
• 2 x Connection Wires

Note: If purchasing the baseboard separately (Package B), switches, potentiometers, and DIP switches are soldered only when the baseboard is purchased alone. When purchasing the complete set with the meter, soldering is not done by default.

3.2 Wiring Diagram

Carefully follow the wiring instructions below. Ensure all connections are secure before applying power.

• Input Connection: Connect your DC input power source to the IN+ and IN- terminals.
• Output Connection: Connect your load to the OUT+ and OUT- terminals.
• Serial Communication: The Serial Communication Interface (GND, RX, TX, 5V) allows for external control and data monitoring.
• External Temperature Sensor: Connect a 10K NTC 3950B external temperature sensor to the designated interface for over-temperature protection.
• MPPT Hardware Switch: Use the MPPT hardware switch to enable or disable MPPT functionality. An indicator light illuminates upon MPPT activation.

Important Safety Note: The input must NOT be connected to alternating current (AC), nor directly to 220V mains power. This product is a step-down power supply; the maximum output voltage is approximately 94.5% of the input voltage.

3.3 Remote Control Setup

The power supply supports control via an infrared remote control module or a 433M wireless remote control module. These modules connect to the designated ports on the display unit.

3.4 Network Control Setup

For network control, you can connect a WiFi module to the display unit. This enables remote control via PC host computer software or a mobile application (Android/iOS), supporting LAN penetration and cloud record functionality.

4. Operating Instructions

4.1 Display Interface Overview

The 1.8-inch full-view high-brightness true-color LCD provides various interfaces for monitoring and control. You can customize color schemes and rotate the display 360°.

4.2 Button Functions

• VSET Button: Short Press: Set voltage (CV). Long Press: Quickly call up data set M1.
• SW Button: Short Press: Enter quick settings. Long Press: Enable four-way screen rotation.
• ISET Button: Short Press: Set current (CC). Long Press: Enter or exit the data group settings UI.
• Encoder Button: Short Press: Shift. Long Press: Lock the button.
• Power Button: Short Press: Turn power output on/off. Long Press: Shut down.

4.3 Setting Voltage and Current

There are three primary ways to set voltage and current:

1. Quick Setup Mode:
   1. Press the V-SET/I-SET button briefly to enter voltage/current setting mode.
   2. Use the SW button or encoder button to move between digits.
   3. Rotate the encoder to adjust the voltage/current value. Once set, press V-SET/I-SET briefly to save and exit.
2. Encoder Mode:
   1. Press the encoder button briefly to activate the parameter (voltage/current) you want to set.
   2. Press the encoder button to switch between full selection and digit selection. In full selection, all digits are highlighted. Rotate the encoder to switch between setting voltage or current. In digit selection, the selected digit is highlighted. Rotate the encoder to adjust the value.
   3. To finish, either hold the encoder button/SW button for 2 seconds or wait 6 seconds without any button press. All settings are saved automatically.
3. Remote Control Mode:

   Use our infrared remote control or 433M wireless remote control module to set voltage and current directly with the remote's numeric keypad.

4.4 Data Management

• Lock Function: Hold the encoder button for more than 2 seconds to lock the buttons and prevent accidental changes. Unlock by holding the encoder button for more than 2 seconds again.
• Quickly Recall Data Sets: Hold the V-SET button to quickly load the M1 data set. Select Data Set: Hold the I-SET button to open the data selection window. Rotate the encoder to choose the data set you want. Then, either hold I-SET or briefly press the SW/encoder button to load the selected data set. The interface will show the currently loaded data set.
• Quickly Adjust System Parameters in the Status Bar: On the main screen, briefly press the SW button to select a status bar parameter. Rotate the encoder to switch between parameters. Briefly press the SW button or encoder button to adjust the parameter or open the parameter setting interface. Use the encoder to set the value. To save and exit, either hold the SW button or wait 6 seconds without any button press. All settings are saved automatically.

4.5 CV CC CW Features Introduction

1. Constant Power Function (CW): When the constant power function is not turned on, the power supply only has the functions of constant voltage (CV) and constant current (CC), which automatically switch based on the load.
   • When the load current is less than the set constant current value, the power supply is in the constant voltage mode, where the output voltage is the set voltage value CV, and the current is adaptive.
   • When the load current is less than the set constant current value, the power supply is in the constant voltage mode, where the output voltage is the set voltage value CV, and the current is adaptive.
2. Enabling Constant Power: After the constant power function is turned on, the constant current value defaults to the maximum value, and the constant voltage value CV serves as the initial voltage (set to a reasonable value based on actual conditions). After the power supply is turned on, the equivalent resistance R of the load is calculated using Ohm's law R=U/I. Then, the corresponding voltage can be calculated based on the set constant power value using the power formula P=U²/R. At this point, the constant power point algorithm automatically follows, and the constant power is achieved.
   • Constant Power Switch and Constant Power Value Setting:
     1. In the system parameter settings UI, select the CW option. Turn ON to enable constant power, and turn OFF to disable constant power.
     2. After enabling constant power, press ISET briefly on the main interface to modify the value of constant power.

4.6 MPPT Solar Charging and Battery Management

The power supply supports MPPT solar charging and includes features for intelligent battery charging management.

• MPPT Function: Supports automatic stop when fully charged and automatic charging at low battery, enabling intelligent battery charging management.
• External Temperature Probe: Can be connected for over-temperature protection. Attach the external temperature probe to the battery, and it will automatically stop charging in case of over-temperature.
• BCH and BTF Functions: With BCH automatic charging and BTF full-charge auto-stop function, enabling unattended operation.

Precaution: Ensure the unit is OFF before connecting the battery. Avoid reverse polarity connection to prevent device damage or fire hazards. Turn on the output ONLY after the battery icon appears on the screen to initiate charging.

4.7 Group Control

The digital control panel supports one-to-many group control via the 485 bus. This allows collective management of power supply activation/deactivation, voltage/current settings, achieving one-to-many control with simplicity and efficiency.

Activating Group Control Function: On the main power supply interface, briefly press the SW button to select the right status bar. Rotate the encoder to choose the group control switch activation icon, then briefly press the encoder button to open the selection dialog. Press the SW or encoder button to select ON and rotate the encoder to ON to enable group control mode. When setting voltage, current, or power on/off, the changes will automatically synchronize to all devices on the 485 bus (Note: Device addresses on the bus must be unique). Hold the SW button or wait 6 seconds without operation to exit and save settings automatically.

4.8 Software Control

The product comes with complementary commercial software for multi-serial port host control. This software allows for unlimited device connectivity, batch control of all devices, and administrative accounts for secure management.

5. Maintenance

To ensure the longevity and optimal performance of your XY8050S power supply, follow these general maintenance guidelines:

• Keep Clean: Regularly clean the device with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials. Ensure ventilation openings are free from dust and debris.
• Environmental Conditions: Operate and store the device in a dry environment, away from direct sunlight, excessive heat, and moisture.
• Handle with Care: Avoid dropping or subjecting the device to strong impacts.
• Power Off When Not in Use: Disconnect the power supply when not in use for extended periods.

6. Troubleshooting

The XY8050S is equipped with multiple protection mechanisms to ensure safe operation. If you encounter issues, refer to the following information:

6.1 Protection Mechanisms

7. Specifications

7.1 Physical Dimensions

8. User Tips

• Always double-check input and output polarity before powering on to prevent damage.
• When using the MPPT function for battery charging, ensure the external temperature probe is correctly attached to the battery for accurate over-temperature protection.
• For precise current measurement, avoid using a multimeter's current range directly in series with the output if the current exceeds the multimeter's 10A gear, as this can damage the multimeter. Utilize the power supply's built-in current display.
• Take advantage of the data set recall feature to quickly switch between frequently used voltage/current configurations.
• If you experience any unexpected behavior, try resetting the capacity/energy/runtime counters by long-pressing the encoder button on the respective display interface.

9. Warranty and Support

For warranty information, technical support, and service inquiries, please refer to the seller's specific terms and conditions or contact the retailer where you purchased the product. Keep your purchase receipt as proof of purchase.

The product supports firmware upgrades, ensuring that you can benefit from future improvements and new features. Please visit the manufacturer's or seller's website for the latest firmware and update instructions.

10. Operational Demonstration Video

Watch this video for a visual guide on operating the XY8050S, including setting voltage and current, navigating interfaces, and using remote control features.