ZJchao WZ5005 DC Regulated Power Supply User Manual

1. Introduction

The ZJchao WZ5005 is a high-power, high-accuracy DC regulated power supply designed for laboratory equipment and electronic testing. It features a 1.8-inch high-definition LCD display, constant voltage and constant current output modes, and comprehensive protection mechanisms. This manual provides essential information for the safe and efficient operation of your WZ5005 power supply.

Figure 1: Front view of the WZ5005 DC Regulated Power Supply.

2. Safety Information

Please read and understand all safety instructions before operating the device. Failure to follow these instructions may result in electric shock, fire, or damage to the product.

• Power Source: Ensure the input voltage is within the specified range of DC 6-55V. Using an incorrect power source can damage the unit.
• Ventilation: Do not block ventilation openings. Ensure adequate airflow around the unit to prevent overheating.
• Environment: Operate the device in a dry, well-ventilated area, away from direct sunlight, high temperatures, and corrosive gases.
• Connections: Always ensure proper polarity when connecting input and output terminals. Incorrect connections can cause damage.
• Maintenance: Do not attempt to disassemble or repair the unit yourself. Refer all servicing to qualified personnel.
• Protection Features: The unit includes over-voltage (OVP), over-current (OCP), over-temperature (OTP), and under-voltage (LVP) protection. Do not bypass these safety features.

3. Product Overview

3.1 Key Features

• Constant Voltage (CV) and Constant Current (CC) output modes.
• 1.8-inch high-definition color LCD display with 4-digit precision.
• Adjustable output voltage (0-50V) and current (0-5A).
• Output power up to 250W.
• Built-in over-voltage (OVP), over-current (OCP), over-temperature (OTP), and under-voltage (LVP) protection.
• Support for PC upper computer software and Android APP for remote control (requires optional USB to TTL or RS485 to TTL module).
• Convenient data storage and recall functions.
• Key lock function to prevent accidental parameter changes.
• Compact and lightweight design with flame-retardant material.

3.2 Components and Controls

Figure 2: Angled view of the WZ5005 showing main components.

• LCD Display: Shows real-time voltage, current, power, and protection settings.
• V-SET Button: Used to set the output voltage.
• I-SET Button: Used to set the output current limit.
• P-SET Button: Used to set protection parameters (OVP, OCP).
• ON/OFF Button: Toggles the output power.
• Rotary Encoder (MENU): Used for navigating menus and adjusting values. Press to confirm.
• Directional Buttons (M1-M4, OK/LOCK): Used for navigation, data storage/recall, and locking the panel.
• Output Terminals (+/-): Connect your load here. Ensure correct polarity.

Figure 3: WZ5005 with included clip lines.

4. Specifications

The following table details the technical specifications of the ZJchao WZ5005 DC Regulated Power Supply:

Figure 4: WZ5005 with detailed specifications.

5. Setup

1. Unpacking: Carefully remove the WZ5005 power supply and any accessories from its packaging. Verify that all components are present (WZ5005 unit, 2 x Clip Lines).
2. Placement: Place the unit on a stable, flat surface with adequate ventilation. Ensure there is enough space around the unit for heat dissipation.
3. Input Power Connection: Connect a DC power source (6-55V) to the input terminals of the WZ5005. Observe correct polarity: positive to '+' and negative to '-'.
4. Output Connection: Connect your load to the output terminals using the provided clip lines or other suitable cables. Ensure correct polarity: positive to '+' (red) and negative to '-' (black).
5. Initial Power On: Once connections are secure, apply power to the input. The LCD screen should illuminate.

Figure 5: Top view showing input and output terminals.

6. Operating Instructions

6.1 Powering On/Off Output

Press the ON/OFF button to enable or disable the output power. When the output is off, the display will show 0.00V and 0.000A.

6.2 Setting Output Voltage (CV Mode)

1. Press the V-SET button. The voltage value on the LCD will start blinking.
2. Rotate the MENU knob to adjust the desired voltage. Press the knob to confirm the setting.
3. Alternatively, use the directional buttons (M1-M4) to select digits for finer adjustment.

6.3 Setting Output Current Limit (CC Mode)

1. Press the I-SET button. The current value on the LCD will start blinking.
2. Rotate the MENU knob to adjust the desired current limit. Press the knob to confirm the setting.
3. This sets the maximum current the power supply will deliver. If the load draws more current, the unit will switch to Constant Current (CC) mode and maintain the set current.

6.4 Setting Protection Parameters (OVP/OCP)

The WZ5005 includes Over-Voltage Protection (OVP) and Over-Current Protection (OCP) to safeguard your equipment.

1. Press the P-SET button. The OVP value will blink.
2. Rotate the MENU knob to set the desired OVP threshold. Press the knob to confirm and move to OCP setting.
3. Rotate the MENU knob to set the desired OCP threshold. Press the knob to confirm.
4. If the output voltage or current exceeds these set values, the power supply will automatically shut off the output to protect the connected device.

6.5 Key Lock Function

To prevent accidental changes to settings, the WZ5005 features a key lock function.

• Press and hold the OK/LOCK button for a few seconds to activate or deactivate the key lock.
• When locked, a lock icon will appear on the display, and most buttons will be unresponsive.

6.6 Data Storage and Recall

The unit allows for convenient storage and recall of frequently used voltage and current settings.

• To store a setting: Adjust the desired voltage and current. Then, press and hold one of the memory buttons (M1, M2, M3, M4) until the display indicates the setting has been saved.
• To recall a setting: Briefly press one of the memory buttons (M1, M2, M3, M4) to load the saved voltage and current.

6.7 Remote Control (Optional)

The WZ5005 supports remote control via PC software or an Android application. This functionality requires an optional USB to TTL module (U2T) or RS485 to TTL module (T485), which are sold separately. Refer to the documentation provided with these modules for connection and software setup instructions.

7. Maintenance

• Cleaning: Disconnect the power supply from all power sources and loads before cleaning. Use a soft, dry cloth to wipe the exterior of the unit. Do not use abrasive cleaners or solvents.
• Storage: When not in use for extended periods, store the power supply in a cool, dry place, away from dust and direct sunlight.
• Inspection: Periodically inspect the input and output cables for any signs of damage or wear. Replace damaged cables immediately.

8. Troubleshooting

9. Warranty and Support

For warranty information or technical support, please refer to the documentation provided at the time of purchase or contact your vendor. You may also visit the official ZJchao store on Amazon for product information and support resources.

ZJchao Store Link: Visit the ZJchao Store