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Nidec 24H055M020

Nidec 24H055M020 Brushless Servo Motor

Instruction Manual

1. Киришүү

This manual provides detailed instructions for the safe installation, operation, maintenance, and troubleshooting of the Nidec 24H055M020 Brushless Servo Motor. Please read this manual carefully before installing, operating, or maintaining the motor to ensure safe and efficient use, prevent equipment damage and personal injury, and extend the service life of the motor.

2. Техникалык шарттар

The Nidec 24H055M020 is a precise and controllable micro brushless servo motor with a built-in drive board and NSK ball bearings, featuring a 100-line signal encoder for feedback.

Motor dimensions showing outer diameter 41.9mm, height 34mm, shaft diameter 6mm, output shaft length 16.5mm, and mounting hole details.

Figure 1: Motor Dimensions

Техникалык мүнөздөмөлөр
ӨзгөчөлүкНарк
Модель номери24H055M020
TypeСерво мотор
Сырткы диаметри41.9 мм
Мотор бийиктиги34 мм
Мотор валынын диаметри6 mm (with 4.5 mm flat position)
Output Shaft Length16.5 мм
Мотор салмагы118 грамм
ТtageDC 12V (Operating range: DC 10V-13V)
Максималдуу ылдамдык3900 RPM
Line Length100 мм
КолдонууҮй техникасы
OriginМатерик Кытай
СертификацияЖок
Жогорку коркунучтуу химиялыкЖок

3. Орнотуу жана зымдар

Careful attention to wiring and power supply is crucial to prevent damage to the motor's built-in drive board. Always ensure correct polarity and voltage көрсөтүлгөн чекте.

Detailed wiring diagram for the Nidec 24H055M020 motor, showing pin assignments for PWM, start/stop, brake, direction, feedback, GND, and +12V.

2-сүрөт: Мотордун зымдарынын схемасы

3.1. Зымдарды туташтыруу

  • Yellow Line (PWM): Requires a pulse frequency input to control motor speed.
  • Blue Line (Start/Stop): Connect to the positive pole to start the motor; disconnect to stop.
  • White Line (Electronic Brake): Leave suspended to release the brake; connect to GND to engage the brake.
  • Green Line (Direction): Leave suspended for Clockwise (CW) rotation; connect to the positive pole for Counter-Clockwise (CCW) rotation. If selecting CCW, connect the direction line to the starting line in parallel, ensuring the starting line (blue) is the slowest to conduct or the first to disconnect.
  • Black Lines (GND): Ground connections.
  • Red Lines (+12V): Power supply input. Ensure voltage is strictly between DC 10V and 13V.
  • Pins 5, 6, 7, 8 (Feedback Signals): These are for encoder feedback. Pin 8 (purple wire) is also GND. The other three lines provide a +3.7V voltage and a signal output. The precise usage of these feedback lines is not fully detailed.

3.2. Power Supply Notes

  • Always check the power supply voltage to ensure it is within the rated DC 10V-13V range.
  • Ensure correct power supply polarity. Incorrect connection will damage the built-in drive board.
  • The motor requires a higher current for starting than for continuous running. Ensure your power supply can provide sufficient current during startup.

4. Операция

4.1. Speed Control (PWM)

The motor's speed is controlled via the Yellow (PWM) line by inputting a pulse frequency. The motor can only be started when the pulse frequency is between 16000HZ and 26000HZ. Once started, the speed can be adjusted by varying the pulse frequency between 1000HZ and 26000HZ.

PWM Frequency to Speed Parameters
Импульс жыштыгыЫлдамдык (RPM)Current (MA)
1000 Гц150 об/мин40 MA
10000 Гц1500 об/мин68 MA
12000 Гц1800 об/мин75 MA
18000 Гц2700 об/мин96 MA
22000 Гц3300 об/мин108 MA
26000 Гц3900 об/мин122 MA

This motor demonstrates precise speed control, with approximately 150 RPM increase for every 1000 Hz increase in pulse frequency.

4.2. Багыттарды башкаруу

The motor's rotation direction is controlled by the Green line. Refer to the 'Wiring Connections' section for details on setting CW or CCW rotation.

4.3. Starting Anomaly

During testing, it was observed that if the motor is wired to start using the positive electrode of the starting line, it can only effectively start when the input pulse frequency is between 16000HZ and 26000HZ. If the input frequency is between 1100HZ and 16000HZ, the motor may shake but will not start. However, once started at a higher frequency, the speed can be adjusted down to 1000HZ.

5. Техникалык тейлөө

Regular maintenance ensures the longevity and optimal performance of your motor.

  • Коопсуздук чаралары: Always take safety precautions when working with high-speed and power motors.
  • Тазалык: Keep the motor surface and heat dissipation fins clean to ensure good ventilation and prevent overheating.
  • Подшипниктер: Periodically check the NSK ball bearings for wear or seizure. If necessary, add lubricating oil or replace them.
  • Зымдар: Regularly inspect all wiring connections for looseness or damage. Tighten loose terminals and repair any damaged wiring promptly.
  • Жүктөө: Ensure the motor is not continuously overloaded, as this can lead to overheating and premature wear.

6. Кыйынчылыктарды

This section outlines common issues, their possible causes, and recommended troubleshooting methods.

Ката феномениМүмкүн болгон себептерПроблемаларды чечүү ыкмалары
Motor cannot start
  1. No power supply or power supply voltage өтө төмөн.
  2. Wiring is wrong or loose.
  3. Мотор ашыкча жүктөлгөн.
  4. Bearings are seized due to shipping, or shaft moved position.
  5. Rotor is stuck.
  6. Starter or control device is faulty.
  1. Check the power supply and restore normal voltage.
  2. Check and correct the wiring, tighten loose terminals.
  3. Reduce the load or check the driven equipment.
  4. Disassemble and maintain the bearings, replace if necessary.
  5. Check and remove the obstacle causing the rotor to be stuck.
  6. Check and repair or replace the starter and control device.
Мотор анормалдуу ызы-чуу чыгарат
  1. Shaft misalignment.
  2. Bearings are worn or lack lubrication.
  3. Fan is damaged or loose.
  4. Rotor and stator rub against each other.
  5. Loose parts in the motor.
  1. Realign the shaft.
  2. Add lubricating oil or replace the bearings.
  3. Replace or tighten the fan.
  4. Check the gap between rotor and stator, adjust or repair.
  5. Check and tighten all loose parts.
Мотор ысып кетет
  1. Ашыкча жүктөө.
  2. Начар жылуулук таркатылышы.
  3. Электр менен камсыздоо көлөмүtage өтө жогору же өтө төмөн.
  4. Phase loss operation (for 3-phase motor).
  5. Bearings are worn or seized.
  6. Winding insulation is damaged, short circuit.
  1. Жүктү азайтыңыз.
  2. Clean the motor surface and heat dissipation fins, ensure good ventilation.
  3. Check and adjust the power supply voltage.
  4. Check the wiring, repair the phase loss fault.
  5. Maintain or replace the bearings.
  6. Check the windings, repair or replace if necessary.

7. Колдонуучунун кеңештери

  • Continuous Rotation: For continuous rotation in a specific direction, ensure the Green (Direction) line is correctly configured (suspended for CW, connected to positive for CCW) and maintained in that state.
  • Speed Control Range: While the motor can operate down to 150 RPM (at 1000 Hz PWM), direct control from 0 RPM may not be achievable with the described wiring method due to the minimum starting frequency requirement.
  • Баштоо жыштыгы: Remember the motor's specific starting behavior: it requires a pulse frequency between 16000HZ and 26000HZ to initiate rotation. Once running, the frequency can be lowered for speed adjustment.
  • Polarity is Key: Always double-check the power supply polarity before connecting to avoid damaging the internal drive board.

8. Кепилдик жана колдоо

For additional detailed information, diagrams, or specific technical support, please refer to the official user manual PDF available at: Nidec 24H055M020 User Manual (PDF).

Please note that the seller acknowledges some aspects of the motor's advanced features, particularly the feedback lines, may require further technical understanding beyond the scope of this basic manual.

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