1. Introduktion
This manual provides detailed instructions for the safe and efficient operation of your Rakstore DC-DC Buck Converter Power Module. Please read this manual thoroughly before use and retain it for future reference.
2. Sikkerhedsoplysninger
- Sørg for input voltage is within the specified range (6-55V). Exceeding this may damage the device.
- Do not operate the module in wet or humid conditions.
- Undgå at kortslutte udgangsterminalerne.
- Afbryd altid strømmen, før du foretager tilslutninger eller justeringer.
- This device generates heat during operation. Ensure adequate ventilation.
- Kun kvalificeret personale bør udføre installation og vedligeholdelse.
3. Produktfunktioner
- LCD display for input/output voltage, output current, output power, output capacity, and output time.
- CNC adjustment for precise and fast voltage regulering.
- Justerbar output voltage fra 0-50V.
- Adjustable output current limit from 0-5A.
- Bred input voltage område: 6-55V.
- Maksimal udgangseffekt: 250W.
4. Produktet er slutview
The Rakstore DC-DC Buck Converter features an integrated LCD display and control buttons for easy operation. The input and output terminals are clearly marked for straightforward connection.

Figur 1: Forside view of the converter module with display and controls.
The front panel includes an LCD screen, 'SW' (Switch Display), 'U/I' (Voltage/Current Toggle), 'CC' (Constant Current indicator), 'ON/OFF' (Output Enable/Disable), and a rotary encoder with an integrated 'ON/OFF' button for setting parameters.

Figur 2: Bagside view of the converter module showing internal components and terminal block.
The rear side reveals the circuit board with power components, including capacitors, inductors, and heatsinks, designed for efficient power conversion. The blue terminal block provides connections for input (IN+, IN-) and output (OUT+, OUT-).

Figure 3: Dimensions of the DC-DC Buck Converter module.
The module has approximate dimensions of 78.9mm (length) x 42.9mm (width) x 41.7mm (height), making it compact for various applications.
5. Opsætning og tilslutning
- Forbered strømkilde: Ensure your input power source (e.g., battery, power adapter) is stable and within the 6-55V DC range.
- Tilslut indgang: Connect the positive (+) terminal of your input power source to the "IN+" terminal on the blue terminal block. Connect the negative (-) terminal of your input power source to the "IN-" terminal. Ensure connections are secure.
- Tilslut belastning: Connect the positive (+) terminal of your load device to the "OUT+" terminal on the blue terminal block. Connect the negative (-) terminal of your load device to the "OUT-" terminal.
- Bekræft forbindelser: Double-check all connections for correct polarity and tightness to prevent damage.
- Anvend strøm: Once all connections are verified, apply power to the input terminals. The LCD display should illuminate.
Caution: Incorrect polarity or exceeding voltage/current limits can damage the module and connected devices.
6. Betjeningsvejledning
6.1 Displayfunktioner
- LCD-skærm: Viser inputvolumen i realtidtage, output voltage, output current, output power, output capacity (Ah), and output time.
- SW knap: Press to cycle through different display parameters (e.g., input voltage, output voltage, current, power, capacity, time).
- U/I-knap: Press to toggle between displaying voltage and current on the main screen.
- CC-indikator: Illuminates when the module is operating in constant current mode.
6.2 Justering af udgangsvolumentage og Nuværende
- Aktivér output: Press the 'ON/OFF' button (the rotary encoder itself) to enable or disable the output. When enabled, the 'ON' indicator will light up.
- Indstil Output Voltage:
- With the output disabled, rotate the encoder to adjust the desired output voltage. Voltage value will flash on the display.
- Press the encoder button briefly to confirm the voltage indstilling.
- Set Output Current Limit:
- With the output disabled, press and hold the encoder button until the current value starts flashing.
- Rotate the encoder to adjust the desired maximum output current. This sets the constant current (CC) limit.
- Press the encoder button briefly to confirm the current setting.
- Start drift: Når voltage and current limits are set, press the 'ON/OFF' button to enable the output. The module will now regulate the output according to your settings.
6.3 Advanced Settings (Long Press Functions)
- Long Press SW: Enters or exits the parameter setting menu (e.g., backlight brightness, default output state). Refer to specific product documentation for detailed menu options.
- Long Press U/I: Clears accumulated capacity (Ah) and time data.
7. Vedligeholdelse
- Hold modulet rent og fri for støv. Brug en blød, tør klud til rengøring.
- Sørg for tilstrækkelig ventilation omkring modulet for at forhindre overophedning.
- Regularly check all connections for tightness and signs of wear.
- Do not attempt to disassemble or modify the module, as this will void any warranty and may cause damage.
8. Fejlfinding
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Intet display/Ingen strøm | No input power; incorrect input polarity; input voltage for lav/høj. | Check input power source; verify input wiring polarity; ensure input voltage er 6-55V. |
| Udgang voltage unstable/incorrect | Loose connections; incorrect settings; overloaded output. | Check output wiring; re-adjust output voltage setting; reduce load or ensure load is within 250W. |
| Output current too low/high | Incorrect current limit setting; load impedance mismatch. | Adjust the output current limit; ensure the load is appropriate for the set current. |
| Modul overophedning | Insufficient ventilation; excessive load. | Ensure adequate airflow around the module; reduce the output load if operating near maximum capacity. |
9. Specifikationer
| Parameter | Værdi |
|---|---|
| Input bindtagRækkevidde | 6V - 55V DC |
| Udgang VoltagRækkevidde | 0V - 50V DC |
| Udgangsstrømområde | 0A - 5A |
| Udgangseffektområde | 0W - 250W |
| Display Type | LCD |
| Kontrolmetode | CNC Adjustment (Rotary Encoder) |
| Dimensioner (L x B x H) | Ca.. 78.9mm x 42.9mm x 41.7mm |
| Modelnummer | 18621 |
| Mærke | Rakstore |
10. Garanti og support
Dette produkt er dækket af en standard producentgaranti. For specifikke garantivilkår henvises til den dokumentation, der blev leveret ved køb, eller kontakt din forhandler.
For technical support or inquiries, please contact Rakstore customer service through their official channels or the platform where the product was purchased.