China Professional Silinman 130st-M04025 1kw 4nm 2500rpm 220V AC Servo Motor vacuum pump ac system

Product Description

Structure and working principle of servo motor:

Servo motor is 1 of the commonly used motor,it is a motor that absolutely obeys the command of the control signal.Before the control signal is sent, the rotor is stationary;when the control signal is sent,the rotor rotates immediately;when the control signal disappears, the rotor can stop immediately.


As a special type of motor,synchronous servo motor is different from most other motors,it is designed for precise positioning,rather than speed controlling.






Since the development of AC servo technology in the early 1980s,the technology has become increasingly mature and the performance has been continuously improved.Now it has been widely used in CNC machine tools, printing and packaging machinery,textile machinery,automatic production lines and other fields.


SG Series AC servo is a new generation of AC servo driver independently developed by our company. It mainly uses the latest 32-bit DSP as the core remote computing unit, and adopts complex programmable device EPLD and CHINAMFG intelligent power module.It has a series advantages such as high integration,small size,fast response,perfect protection, and high reliability.


Using temperature:-10ºC-55ºC

Humidity:less than 90%(No condensation)

Vibration:less than 0.5g(4.9m/s2)

Working duty:continuously


Technical parameter:

Model SG200 Series
Input power supply Single phase or 3 phase,AC220v(-15%-20%,50/60Hz) Three phase, AC220v(-15%-20%,50/60Hz)
Use environment Temperature Using:0°C-55°C;Storage:-20°C-80°C
  Humidity Below 90%(no condensation)
Control mode Position control;Speed control;Torque control;Jog control
Regenerative braking Built-in
Control characteristics Speed frequency response <400Hz
  Speed fluctuation rate <±0.03(load 0-100);<±0.02(power -15%-10%),the value corresponds to the rated speed
  Pulse frequency ≤500kHz
Control Input servo enable; alarm clear; ccw drive prohibited; cw drive prohibited; Deviation counter clearing/speed selection 1/zero speed clamping; Command pulse prohibited/speed selection 2
Control output servo is ready to output; servo alarm output; position finish output/speed arrive output ;mechanical brake output
Position Control Input method pulse+symbol; ccw pulse/cw pulse; 2phase A/B quadrature pulses
  Electronic gear 1-32767/1-32767
  Feedback pulse 2500lines/rotation
Protection function Overspeed, overvoltage and undervoltage of main power supply, overcurrent, overload, braking abnormality, encoder abnormality, control power abnormality, position out-of-tolerance, etc
Monitoring function Speed, current position, command pulse accumulation, position deviation, motor torque, motor current, linear speed, rotor absolute position, command pulse frequency, operation status, input and output terminal signal, etc



Model M Series
Input power supply Single phase or 3 phase 220VAC Three phase 220VAC
Control mode Single phase or 3 phase full wave rectification/PWM control sine wave drive mode
Encoder feedback 2500 lines incremental encoder,17bit,23bit absolute encoder
Pulse signal input Direction+pulse;A/B phase orthogonal pulse;CW/CCW pulse
  Differential input:500Kpps
  Open collector input:200Kpps
Digital input 8-channel digital input,which can allocate and change signals
Analog input 2-channel analog input function
Communication interface RS-232:applicable servo driver debugging;RS-485:applicable for customer on-site networking communication
Control mode Position control;speed control;torque control;position/speed control;speed/torque control;position/torque control
Basic performance Response band width:3KHz
  Speed adjust range:1-8000rpm
  Troque control accuraccy:±2%
  Speed variation rate:≤0.5%
  Soft start time setting:0-60S
Built-in function Motor load inertia identification function,vibration suppression function,feedforward compensation function,various PID control strategies
  Overtravel prevention function,emergency parking brake in case of overtravel
  Electronic gear ratio function:electronic gear ratio can be set arbitrarily
  16 stage position control function,16 stage speed control function,interrupted fixed length function
Protection function Over voltage, over current, overload,overspeed,under voltage,overheating,encoder failure,power phase loss,abnormal regenerative braking,fan failure,etc
Use environment Temperature Using:0°C-45°C;Storage:-20°C-85°C
  Humidity Below 90%(no condensation)
  Protection IP20
  Altitude Below 1000m
  Vibration Below 4.9m/s2

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Application: Industrial
Operating Speed: Constant Speed
Operation Mode: Electric Motor
Magnetic Structure: Permanent Magnet
Function: Driving
Number of Poles: 4


servo motor

What maintenance practices are recommended for ensuring the longevity of servo motors?

Maintaining servo motors properly is crucial to ensure their longevity and reliable performance. Here are some recommended maintenance practices:

1. Regular Cleaning:

Regularly clean the servo motor to remove dust, debris, and other contaminants that can affect its performance. Use a soft brush or compressed air to clean the motor’s exterior and ventilation ports. Avoid using excessive force or liquid cleaners that could damage the motor.

2. Lubrication:

Follow the manufacturer’s recommendations for lubrication intervals and use the appropriate lubricant for the motor. Lubricate the motor’s bearings, gears, and other moving parts as per the specified schedule. Proper lubrication reduces friction, minimizes wear, and helps maintain optimal performance.

3. Inspections:

Regularly inspect the servo motor for signs of wear, damage, or loose connections. Check for any unusual noises, vibrations, or overheating during operation, as these can indicate potential issues. If any abnormalities are detected, consult the manufacturer’s documentation or seek professional assistance for further evaluation and repair.

4. Electrical Connections:

Ensure that all electrical connections to the servo motor, such as power cables and signal wires, are secure and properly insulated. Loose or damaged connections can lead to electrical problems, voltage fluctuations, or signal interference, which can affect the motor’s performance and longevity.

5. Environmental Considerations:

Take into account the operating environment of the servo motor. Ensure that the motor is protected from excessive moisture, dust, extreme temperatures, and corrosive substances. If necessary, use appropriate enclosures or protective measures to safeguard the motor from adverse environmental conditions.

6. Software and Firmware Updates:

Stay updated with the latest software and firmware releases provided by the servo motor manufacturer. These updates often include bug fixes, performance enhancements, and new features that can improve the motor’s functionality and reliability. Follow the manufacturer’s instructions for safely updating the motor’s software or firmware.

7. Training and Documentation:

Ensure that personnel responsible for the maintenance of servo motors are properly trained and familiar with the manufacturer’s guidelines and documentation. This includes understanding recommended maintenance procedures, safety precautions, and troubleshooting techniques. Regular training and access to up-to-date documentation are essential for effective servo motor maintenance.

8. Professional Servicing:

If a servo motor requires complex repairs or servicing beyond regular maintenance, it is advisable to consult a qualified technician or contact the manufacturer’s service center. Attempting to repair or modify the motor without proper expertise can lead to further damage or safety hazards.

By following these maintenance practices, servo motors can operate optimally and have an extended lifespan. Regular cleaning, lubrication, inspections, secure electrical connections, environmental considerations, software updates, training, and professional servicing all contribute to ensuring the longevity and reliable performance of servo motors.

servo motor

What is the significance of closed-loop control in servo motor operation?

Closed-loop control plays a significant role in the operation of servo motors. It involves continuously monitoring and adjusting the motor’s behavior based on feedback from sensors. The significance of closed-loop control in servo motor operation can be understood through the following points:

1. Accuracy and Precision:

Closed-loop control allows servo motors to achieve high levels of accuracy and precision in positioning and motion control. The feedback sensors, such as encoders or resolvers, provide real-time information about the motor’s actual position. This feedback is compared with the desired position, and any deviations are used to adjust the motor’s behavior. By continuously correcting for errors, closed-loop control ensures that the motor accurately reaches and maintains the desired position, resulting in precise control over the motor’s movements.

2. Stability and Repeatability:

Closed-loop control enhances the stability and repeatability of servo motor operation. The feedback information enables the control system to make continuous adjustments to the motor’s inputs, such as voltage or current, in order to minimize position errors. This corrective action helps stabilize the motor’s behavior, reducing oscillations and overshoot. As a result, the motor’s movements become more consistent and repeatable, which is crucial in applications where the same motion needs to be replicated accurately multiple times.

3. Compensation for Disturbances:

One of the key advantages of closed-loop control is its ability to compensate for disturbances or variations that may occur during motor operation. External factors, such as friction, load changes, or variations in the operating environment, can affect the motor’s performance and position accuracy. By continuously monitoring the actual position, closed-loop control can detect and respond to these disturbances, making the necessary adjustments to maintain the desired position. This compensation capability ensures that the motor remains on track despite external influences, leading to more reliable and consistent operation.

4. Improved Response Time:

Closed-loop control significantly improves the response time of servo motors. The feedback sensors provide real-time information about the motor’s actual position, which allows the control system to quickly detect any deviations from the desired position. Based on this feedback, the control system can adjust the motor’s inputs promptly, allowing for rapid corrections and precise control over the motor’s movements. The fast response time of closed-loop control is crucial in applications where dynamic and agile motion control is required, such as robotics or high-speed automation processes.

5. Adaptability to Changing Conditions:

Servo motors with closed-loop control are adaptable to changing conditions. The feedback information allows the control system to dynamically adjust the motor’s behavior based on real-time changes in the operating environment or task requirements. For example, if the load on the motor changes, the control system can respond by adjusting the motor’s inputs to maintain the desired position and compensate for the new load conditions. This adaptability ensures that the motor can perform optimally under varying conditions, enhancing its versatility and applicability in different industrial settings.

In summary, closed-loop control is of significant importance in servo motor operation. It enables servo motors to achieve high levels of accuracy, stability, and repeatability in position and motion control. By continuously monitoring the motor’s actual position and making adjustments based on feedback, closed-loop control compensates for disturbances, enhances response time, and adapts to changing conditions. These capabilities make closed-loop control essential for achieving precise and reliable operation of servo motors in various industrial applications.

servo motor

How does feedback control work in a servo motor system?

In a servo motor system, feedback control plays a crucial role in achieving precise control over the motor’s position, speed, and acceleration. The feedback control loop consists of several components that work together to continuously monitor and adjust the motor’s behavior based on the desired and actual position information. Here’s an overview of how feedback control works in a servo motor system:

1. Position Reference:

The servo motor system starts with a position reference or a desired position. This can be specified by a user or a control system, depending on the application requirements. The position reference represents the target position that the servo motor needs to reach and maintain.

2. Feedback Sensor:

A feedback sensor, such as an encoder or resolver, is attached to the servo motor’s shaft. The purpose of the feedback sensor is to continuously measure the motor’s actual position and provide feedback to the control system. The sensor generates signals that indicate the motor’s current position, allowing the control system to compare it with the desired position.

3. Control System:

The control system receives the position reference and the feedback signals from the sensor. It processes this information to determine the motor’s current position error, which is the difference between the desired position and the actual position. The control system calculates the required adjustments to minimize this position error and bring the motor closer to the desired position.

4. Controller:

The controller is a key component of the feedback control loop. It receives the position error from the control system and generates control signals that govern the motor’s behavior. The controller adjusts the motor’s inputs, such as voltage or current, based on the position error and control algorithm. The control algorithm can be implemented using various techniques, such as proportional-integral-derivative (PID) control, which adjusts the motor’s inputs based on the current error, the integral of past errors, and the rate of change of errors.

5. Motor Drive:

The control signals generated by the controller are sent to the motor drive unit, which amplifies and converts these signals into appropriate voltage or current levels. The motor drive unit provides the necessary power and control signals to the servo motor to initiate the desired motion. The drive unit adjusts the motor’s inputs based on the control signals to achieve the desired position, speed, and acceleration specified by the control system.

6. Motor Response:

As the motor receives the adjusted inputs from the motor drive, it starts to rotate and move towards the desired position. The motor’s response is continually monitored by the feedback sensor, which measures the actual position in real-time.

7. Feedback Comparison:

The feedback sensor compares the actual position with the desired position. If there is any deviation, the sensor generates feedback signals reflecting the discrepancy between the desired and actual positions. These signals are fed back to the control system, allowing it to recalculate the position error and generate updated control signals to further adjust the motor’s behavior.

This feedback loop continues to operate in a continuous cycle, with the control system adjusting the motor’s inputs based on the feedback information. As a result, the servo motor can accurately track and maintain the desired position, compensating for any disturbances or variations that may occur during operation.

In summary, feedback control in a servo motor system involves continuously comparing the desired position with the actual position using a feedback sensor. The control system processes this position error and generates control signals, which are converted and amplified by the motor drive unit to drive the motor. The motor’s response is monitored by the feedback sensor, and any discrepancies are fed back to the control system, enabling it to make further adjustments. This closed-loop control mechanism ensures precise positioning and accurate control of the servo motor.

China Professional Silinman 130st-M04025 1kw 4nm 2500rpm 220V AC Servo Motor   vacuum pump ac system	China Professional Silinman 130st-M04025 1kw 4nm 2500rpm 220V AC Servo Motor   vacuum pump ac system
editor by CX 2024-02-04