XY-6020L 1200W 20A 60V CC/CV Buck Converter with Display

Description

XY-6020L 1200W 20A 60V CC/CV Buck Converter with Display

The XY-6020L is a 1200 W constant-current/constant-voltage (CC/CV) buck converter. It supports up to 20 A output over 0–60 V, with a wide 6–70 V DC input range. Its large LCD and rotary encoder allow real-time adjustment and monitoring of voltage, current, power, and energy.

🔧 Technical specifications

• Module: XY-6020L
• Input voltage: 6–70 V DC
• Output voltage: 0.00–60.00 V DC (0.01 V resolution)
• Output current: 0.00–20.00 A (0.01 A resolution)
• Maximum power: 1200 W
• Automatic CC/CV mode: maintains the programmed value
• Display: large backlit LCD (V, I, P, Ah, Wh, and time readings)
• Control: rotary encoder and confirm button
• Cooling: built-in fan, automatic activation (>2 A or >50 W, and temperature >50 °C)
• Protection settings:
• Input overvoltage (adjustable; default 71 V)
• Input undervoltage (adjustable; default 4.8 V)
• Overcurrent (0–22 A; default 22 A)
• Overpower (0–1250 W; default 1250 W)
• Over-temperature (adjustable 60–110 °C; default 95 °C)
• Output short-circuit protection
• Accuracy: voltage ±0.4% + 1 digit; current ±0.5% + 3 digits
• Dimensions: 160 × 110 × 35 mm
• Weight: approx. 400 g

💡 Typical applications

• Test benches and laboratory power supplies
• Battery charging with programmable CC/CV
• DC motor control and high-power LEDs
• IoT projects and prototypes requiring CC/CV
• Industrial automation and component testing

🛠️ Pinout / wiring

Terminal	Function	Typical connection
VIN+	Positive input (6–70 V)	DC source positive (+)
VIN–	Negative input (ground)	DC source negative (–)
VOUT+	Positive output (0–60 V)	Load positive (+)
VOUT–	Negative output (ground)	Load negative (–)
GND	Logic ground (display and logic)	Common ground

Connect VIN+/VIN– to the power supply and VOUT+/VOUT– to the load. Then set voltage and current with the encoder before enabling the output.

Download the XY-6020L datasheet

XY-6020L operating and configuration guide

The XY-6020L is an adjustable DC-DC constant-voltage/constant-current (CV/CC) converter rated up to 1200 W (60 V at 20 A). It combines a power board with a separate LCD controller and provides several adjustment modes and external interfaces.

Electrical connections

• VIN+ / VIN– (6–70 V DC): power input
• VOUT+ / VOUT– (0–60 V DC at 0–20 A): output to the load
• GND (logic): common ground for the LCD controller
• Ports and headers:
• White XH2.54-2P: external 10 kΩ NTC probe for temperature protection
• 4-pin UART: RS485 Modbus interface or XY-WFPOW Wi-Fi module
• 3-bit toggle switch (DIP): stand-alone voltage presets (5 V, 9 V, 12 V, 24 V, 36 V, 48 V, or 60 V)
• Power switch ON/OFF: switches module logic power

LCD panel and encoder

The controller can display output voltage, output current, power, capacity (Ah), energy (Wh), elapsed time (h), input voltage, CV/CC status, and ON/OFF state at the same time. Use the rotary encoder and its integrated button to navigate and change settings.

Button functions

• V/A (top button): short press enters or exits voltage (CV) or current (CC) setting mode.
• SW (middle button): short press switches the input/output voltage display (the “IN” icon indicates input) or navigates; hold for 2 seconds to open the general parameter settings.
• ON/OFF (bottom button): short press enables or disables the output; hold for 2 seconds to clear the Ah, Wh, and time statistics.

Setting voltage and current

1. In normal mode, press V/A to enter voltage adjustment (SET+CV symbol).
2. Turn the encoder to change the value (0.01 V resolution). Briefly press the encoder or SW to select the digit to edit.
3. Press V/A again to switch to current adjustment (SET+CC symbol; 0.01 A resolution).
4. Turn the encoder to adjust, then press and hold V/A to save and return to normal mode.

Advanced parameter menu

• 10 output presets (Cd0–Cd9): quick access to preset voltage/current pairs.
• Parameter lock: hold the encoder for 2 seconds to prevent accidental changes.
• LVP/OVP/OCP/OPP/OTP/ETP/OHP/OAH/OPH protections: adjustable in the parameter menu; values and units can be changed.
• Timeout (0–100 h), over-capacity (0–9999 Ah), and over-energy (0–9999 Wh): automatic cutoff at the selected threshold.

Stand-alone operation with the 3-bit toggle switch

When the LCD controller is not being used, set the DIP switch on the power board (ON = 1, NC = 0) to select a fixed output voltage of 5 V, 9 V, 12 V, 24 V, 36 V, 48 V, or 60 V. Maximum current remains 20 A. Encoder adjustment is disabled in this mode.

External control

• Modbus RTU (RS485): connect a TTL-to-RS485 module to the UART connector to communicate through Modbus registers, control V/I, and read parameters.
• Wi-Fi (XY-WFPOW + SiniLink app): connect the Wi-Fi module to the UART header, register it in the app, then control and monitor the unit remotely.

External temperature probe

Connect a 10 kΩ NTC probe to the white XH2.54-2P socket to enable adjustable external temperature protection (ETP), 0–110 °C.

Memory and startup

The last voltage, current, and mode settings are stored if power is interrupted. On restart, the module resumes its previous output state (ON or OFF).

Startup steps

1. For LCD mode, check that the DIP switch is set to NC (or select the required preset).
2. Connect VIN+ / VIN–.
3. Turn on the chassis power switch.
4. Set V/I as required.
5. Connect the load to VOUT+ / VOUT–.
6. Enable the output with the ON/OFF button or an external command.

Notes

• Always observe VOUT < VIN − 1.1* and the thermal specification.
• The automatic fan activates above 2 A, above 50 W, or above 50 °C.
• Read the protection settings and presets carefully before use.
• For battery charging, ensure VSET is above the battery voltage and the DIP switch is set to NC.