Power supply connection established.
2. Power on the unit, and with no load connected, press the main power switch. Then, turn on the DC output switch to enable normal operation. At this point, the digital indicator on the power supply will display the current working voltage and output current.
3. Set the output voltage. Adjust the voltage setting knob to display the target voltage on the digital voltmeter, completing the voltage setting. For power supplies with adjustable current limiting, there are two separate adjustment systems for voltage and current regulation. Be clear when adjusting; generally, potentiometers for adjusting voltage have "VOLTAGE" labeled on them, while those for adjusting current have "CURRENT" labeled. Many entry-level products use a low-cost coarse/fine dual-knob setup for setting. When encountering dual adjustment knobs, first turn the fine adjustment knob to the middle position, then set the approximate voltage using the coarse adjustment knob, and finally use the fine adjustment knob to make the correct correction.
4. Set the current. Hold down the "Limit" button on the power panel, and the current meter will display the current value. Adjust the current knob to reach the desired level. Generally, the current limit can be set at 120% of the common high current. Some power supplies do not have a dedicated current limit adjustment button; users must short-circuit the output terminals according to the instructions and adjust the current limit level by coordinating with the current limit knob. Simple adjustable voltage power supplies do not have a current setting function or corresponding knob.28V DC Power Supply4,28V DC Constant Voltage Power Supply4,28V Aeronautical Power Supply2,28.5V DC Power Supply2,7-HK-182 Avionics Battery
5. Set Overvoltage Protection (OVP). Overvoltage setting refers to setting a maximum voltage within the adjustable voltage range of the power supply to prevent the output from exceeding the intended level due to accidental operation. Typically, overvoltage can be set to 120% of the normal operating voltage. An Allen wrench is required to adjust the recessed potentiometer on the panel, which is also a design feature to prevent accidental changes. To set the OVP voltage, first adjust the power supply's operating voltage to the target overvoltage point, then gradually adjust the OVP potentiometer until the power supply protection triggers, indicating the OVP is properly set. Afterward, turn off the power supply, lower the operating voltage, and it will operate normally. Refer to Step 3 in the text for setting the operating voltage. Different power supplies have various OVP configurations.
6. Communication interface parameter settings and remote control operation setup. For local control panel operations, remote control should be disabled. The communication interface must be set according to communication requirements, while local applications do not require any settings.
