XY8050S CNC DC Adjustable Step-Down Power Supply

Introduction

This manual provides detailed instructions for the safe and efficient operation of your XY8050S CNC DC Adjustable Step-Down Power Supply. This versatile module features MPPT solar charging support, constant current output, and comprehensive protection mechanisms, making it suitable for a wide range of applications.

Key Features

• Supports firmware upgrades for new functionalities.
• Integrated MPPT solar charging capability.
• Serial communication support for advanced control.
• 1.8-inch full-view, high-brightness, true-color LCD screen.
• Customizable display color schemes and four-way screen rotation.
• Comprehensive input and output reverse polarity protection.
• Immersion gold-plated display panel for enhanced durability and conductivity.
• Dual intelligent temperature-controlled PWM fans with stepless speed regulation for efficient, low-noise cooling.
• Input common-mode inductors to reduce power ripple and ensure low-ripple output.
• Triple independent serial ports for simultaneous operation and versatile interfaces.
• Supports network control via PC host computer or mobile APP (Sinilink).
• Integrated fire-retardant shell with double-buckle design for safety and secure fixation.
• Silicone buttons with integrated indicator lights for intuitive operation.

Specifications

Protection Mechanisms

Product Dimensions:

• Screen Instrument Size: 86 x 50 x 45 mm
• Bare Board Size: 170 x 108 x 53 mm
• Recommended Opening Size: 81.6 x 40.6 mm

Product Overview and Components

The XY8050S is a high-performance DC buck- power supply designed for precision control and robust protection. It features a clear LCD display and intuitive controls.

Component Identification

• **IN+/IN-**: Input terminals for DC power (12.00-90.00V).
• **OUT+/OUT-**: Output terminals for regulated DC power (0-80.00V, 0-50.00A).
• **Power Switch (Hard Switch ON/OFF)**: Controls the main power to the unit.
• **MPPT Hardware Switch**: Activates or deactivates MPPT functionality, with an indicator light.
• **10K NTC 3950B External Temperature Sensor Interface**: For connecting an external temperature probe for over-temperature protection.
• **Serial Communication Interface**: For Modbus protocol communication.
• **Cooling Fan**: Intelligent temperature-controlled PWM fan for heat dissipation.
• **Dip Switches**: Used to set constant current values in potentiometer mode (16 gears).

Display and Control Buttons

• **V-SET Button**: Short press to set voltage (CV). Long press to quickly recall data set M1.
• **SW Button**: Short press to enter quick settings. Long press to enable four-way screen rotation.
• **I-SET Button**: Short press to set current (CC). Long press to enter or exit data group settings UI.
• **Encoder Button**: Short press to shift selection. Long press to lock/unlock buttons.
• **Power Button (ON/OFF)**: Short press to turn power output on/off. Long press to shut down the device.

Setup Instructions

Initial Connection

1. Ensure the power supply unit is OFF before making any connections.
2. Connect your DC input power source (12.00-90.00V) to the IN+ and IN- terminals. Observe correct polarity to prevent damage.
3. Connect your load to the OUT+ and OUT- terminals.
4. If using an external temperature probe, connect it to the NTC temperature probe interface.
5. If using serial communication, connect the appropriate module to the serial communication interface.

MPPT Solar Charging Setup

Precaution for MPPT Solar Charging:

• 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.

Operating Instructions

Basic Operation (Setting Voltage and Current)

1. Quick Setup Mode:

1. Briefly press the V-SET or I-SET button 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.
4. Once set, briefly press V-SET or I-SET to save and exit.

2. Encoder Mode:

1. Briefly press the encoder button to activate the parameter (voltage/current) you want to set.
2. Press the encoder button again to switch between full selection and digit selection.
3. In full selection, all digits are highlighted. Rotate the encoder to switch between setting voltage or current.
4. In digit selection, the selected digit is highlighted. Rotate the encoder to adjust the value.
5. To finish, either hold the SW button/encoder button or wait 6 seconds without any button press. All settings are saved automatically.

3. Remote Control Mode:

• Use an infrared remote control or 433M wireless remote control module (sold separately) to set voltage and current directly with the remote's numeric keypad.

Constant Voltage (CV), Constant Current (CC), and Constant Power (CW) Modes

Constant Voltage (CV) and Constant Current (CC) Operation:

• When the constant power function is not enabled, the power supply operates in either constant voltage (CV) or constant current (CC) mode, switching automatically based on the load.
• If the load current is less than the set constant current value, the power supply maintains the set constant voltage (CV), and the current adapts to the load.
• If the load current exceeds the set constant current value, the power supply operates in constant current (CC) mode, maintaining the set current, and the voltage adapts to the load.

Constant Power (CW) Operation:

1. After enabling the constant power function, the constant current value defaults to its maximum. The constant voltage (CV) acts as the initial voltage.
2. The power supply calculates the equivalent resistance (R=U/I) and then adjusts voltage based on the set constant power (P=U/R) to maintain constant power output.

Enabling/Disabling Constant Power (CW):

1. In the system parameter settings UI, select the CW option.
2. Turn ON to enable constant power, and turn OFF to disable it.
3. After enabling, briefly press ISET on the main interface to modify the constant power value.

Advanced Operations

Lock Function:

• **Lock**: Hold the encoder button for more than 2 seconds to lock the buttons and prevent accidental changes.
• **Unlock**: Hold the encoder button for more than 2 seconds again to unlock.

Quickly Recall Data Sets:

• **Recall M1 Data Set**: Hold the V-SET button to quickly load the M1 data set.
• **Select Data Set**: Hold the I-SET button to open the data set selection window. Rotate the encoder to choose the desired data set. Then, either hold I-SET or briefly press the SW/encoder button to load the selected data set. The interface will display the currently loaded data set.

Quickly Adjust System Parameters in the Status Bar:

1. On the main screen, briefly press the SW button to select a status bar parameter.
2. Rotate the encoder to switch between parameters.
3. 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.
4. To save and exit, either hold the SW button/encoder button or wait 6 seconds without any button press. All settings are saved automatically.

Display Customization

The 1.8-inch LCD supports 8 color options, allowing you to freely customize the interface colors to create your unique style! The display also supports four-way rotation, which can be enabled by long-pressing the SW button on the main UI.

Network Control

The XY8050S supports network control anytime, anywhere, through LAN penetration and real-time communication. You can use the PC host computer software or the Sinilink mobile APP (Android/iOS) for remote control. This feature also supports email notifications and cloud record keeping.

Group Control (485 Bus)

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, and other parameters for multiple devices.

Activating Group Control Function:

1. On the main power supply interface, briefly press the SW button to select the right status bar.
2. Rotate the encoder to choose the group control switch activation icon, then briefly press the encoder button to open the selection dialog.
3. Press the SW or encoder button to select and rotate the encoder to ON to enable group control mode.
4. 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).
5. Hold the SW button or wait 6 seconds without operation to exit and save settings automatically.

Maintenance

• Keep the device clean and free from dust. Use a soft, dry cloth for cleaning.
• Ensure proper ventilation around the unit to prevent overheating. The dual cooling fans are designed for efficient heat dissipation.
• Regularly check all connections for tightness and ensure no wires are frayed or damaged.
• Store the device in a dry environment, away from direct sunlight and extreme temperatures.

Firmware Upgrades

The XY8050S supports firmware upgrades to introduce new features and improvements. Currently, upgrades are supported via the WiFi module. Future updates may allow upgrades through multi-serial port host computer software.

Important Note:

• Do not power off the device during the firmware upgrade process.
• If an upgrade fails, press and hold the power button to power on the product and force it into upgrade mode to retry.

Troubleshooting

User Tips

• For advanced integration and custom applications, the serial interface protocol may be required. Please contact customer support for detailed documentation.
• When using the bare board independently, remember that switches, potentiometers, and dial switches might need to be soldered if not purchased as a set with the screen meter.
• Utilize the 16-gear dip switch for constant current setting in potentiometer mode to avoid multimeter burnout when measuring high currents.
• Take advantage of the customizable display colors and 4-way rotation for optimal readability in various setups.
• For multi-device control, configure unique addresses for each unit on the 485 bus to ensure proper group control synchronization.

Warranty and Support

For warranty information, technical support, or to request the serial interface protocol, please refer to the seller's official website or contact their customer service directly. Keep your purchase records for any warranty claims.