Introduction
This manual provides essential information for the safe and effective use of your Nidec 20N Micro DC Brushless Motor. This high-speed, large-torque mini motor is designed for various DIY applications and operates within a DC 6V-12V range. Please read these instructions carefully before installation and operation.
Safety & Warnings
- Do not operate the motor under overload (stall) conditions, as this may easily damage the motor.
- Select a power supply with appropriate voltage (DC).
- If the load exceeds the rated value, the rotational speed will decrease.
- Operating near the stall torque limit may cause internal damage.
- Reducing the rotational speed will result in decreased output torque.
Choking Hazard Warning
- Small parts. Not suitable for children under 3 years.
Specifications
| Attribute | Value |
|---|---|
| Model Number | 20N |
| Motor Diameter | 23.6mm |
| Motor Height | 18.9mm |
| Output Shaft Diameter | 2.0mm |
| Output Shaft Length | 16.5mm (including step height) |
| Weight | 25g |
| Voltage Range | DC 6.0V-12.0V |
| Output Power | <18.65W |
| Construction | Permanent Magnet |
| Type | Micro Motor |
| Protect Feature | Explosion-proof |
| Commutation | Brushless |
| Efficiency | IE 1 |
| Current Type | DC |
| Shaft Type | Straight |
| Origin | Mainland China |
Test Data (No-load)
- Voltage: 6V | Current: 92mA | Speed: 5900RPM
- Voltage: 9V | Current: 115mA | Speed: 8950RPM
- Voltage: 12V | Current: 135mA | Speed: 12000RPM
Setup
The Nidec 20N is a brushless motor equipped with an integrated driver board. Correct wiring is crucial to prevent damage.
- Identify the positive and negative wires: The gray line is for positive (+), and the black line is for negative (-).
- Connect the motor's terminals to a direct current (DC) power supply within the specified voltage range (6.0V-12.0V).
- Important: Ensure the positive and negative poles are connected correctly. Reversing the polarity will burn the drive board.
Operation
Once correctly wired to a DC power supply within the specified voltage range (6V-12V), the motor will operate. The rotational speed will vary with the applied voltage, with higher voltages within the range resulting in higher speeds, up to 12000 RPM at 12V.
Ensure the motor is not stalled or overloaded during operation to prevent damage. Continuous operation under stall conditions or with excessive load can lead to overheating and internal damage.
Maintenance
- Keep the motor clean and free from dust and debris. Use a soft, dry cloth for cleaning.
- Avoid exposing the motor to excessive moisture or extreme temperatures, which can affect performance and lifespan.
- Regularly check electrical connections for secure fit and any signs of wear or corrosion.
- Do not attempt to disassemble the motor unless you are a qualified technician, as this may void any potential warranty and cause damage.
Troubleshooting
- Motor not spinning:
- Check power supply voltage: Ensure it is within the 6V-12V range.
- Verify wiring: Confirm the gray line is connected to positive and the black line to negative. Incorrect wiring can damage the drive board.
- Check for overload: Reduce the load if the motor is stalled or struggling to start.
- Reduced speed/torque:
- Check for excessive load: If the load exceeds the rated value, the speed will decrease. Reduce the load on the motor.
- Ensure adequate power supply: A weak or insufficient power supply might not deliver enough current for optimal performance.
User Tips
- This motor has been noted by users as a suitable replacement for iRobot Roomba 960/966 dustbin motors.
- Exercise extreme caution with wiring; incorrect polarity will permanently damage the integrated drive board.
- Always confirm compatibility with your specific device model (e.g., Roomba 980) before purchasing or attempting installation.
Package Contents
- 1 x Nidec 20N Micro DC Brushless Motor
Manufacturer Information
Manufacturer:
- Dongguan Haodarong Trading Co., Ltd
- Address: Room406, No.11, Jiaoyu Road, DongchengStreet, Dongguan
- Contact Person: Liao Jiansheng
- E-Mail: mox0903@163.com
- Made in China
EU Responsible Person:
- QTEC EUREP GMBH
- Germany CURTIUSSTRASSE_2723568_LUEBECK
- E-mail: Cpcs@cpcs-tlab.hk_HK
- Phone: +852-5370017
Certifications
- CCC
- CE
- Reach
Warranty & Support
For technical support or warranty inquiries, please contact the manufacturer directly using the information provided in this manual.
A detailed user manual in PDF format is also available for download: Nidec 20N Micro DC Brushless Motor User Manual (PDF)