Screw guide module precision speed _ _ linear module manipulator linear positioning module manufacturers
by：Zhenyu
2020-09-30
In linear gear coupling, what is the difference between step motor and servo motor?
Linear module is to use motor drive, can according to the industry needs to match the stepper motor or servo planetary gear motor and control method on similarity between the two,
Pulse sequence and direction signal)
, but in the use of performance and applications on there is a big difference.
1. Running performance is different:
linear module control for stepping motor in open loop control, start frequency is too high or too much load step easy appear lost or blocked, stops frequently occur high speed overshoot phenomenon, so as to ensure the control accuracy, should handle up, slow down. Servo drive system for closed-loop control, the actuator can be directly to the motor encoder feedback signal sampling, internal position loop and speed loop, general won't appear step motor lose step or overshoot phenomenon, more reliable control performance.
2. Overload capacity is different:
step motor is generally not in linear gear coupling has overload ability. Servo motor has a strong ability of overload. It has the speed servo system overload and torque overload capacity. The maximum torque is three times the rated torque, can be used to overcome inertia load at startup moments of inertia moment. Stepper motor because there is no this kind of overload capacity, in order to overcome the inertia moment when selection, often need to select a larger torque of the motor, and the machine during the normal work and don't need that big torque, there is a moment of waste phenomenon.
3. Different control precision:
two-phase hybrid stepper motor step Angle is commonly 3. 6° , 1. 8° , five step away from the Angle of the hybrid stepping motor is commonly 0. 72 ° , 0. 36° 。 There are also some high-performance stepper motor step Angle is smaller.
4. Different speed response performance:
linear module of the stepper motor to accelerate from 0 to speed ( Generally for a few hundred revolutions per minute) Need to 200 ~ 400 milliseconds. The acceleration of servo system performance is good, with panasonic MSMA 400 w servo motor as an example, from the static accelerated to the rated speed 3000 RPM it takes only a few milliseconds, can be used for quick start-stop control occasions.
5. Low frequency characteristics of different:
step motor at low speed in linear module is easy to appear low frequency vibration phenomenon. Vibration frequency and load events related to drive performance, it is generally believed half frequency vibration frequency for the planetary gear motor no-load takeoff. This determined by the working principle of stepper motor in low frequency vibration phenomenon is very bad for the normal operation of the machine.
6. Different torque frequency characteristics:
linear module of the stepper motor's output torque increases with speed decreases, and at a high speed when it fell sharply, so its maximum working speed is in commonly 300 ~ 600 RPM. Servo motor as the constant torque output, namely in the rated speed ( General is 2000 RPM and 3000 RPM) Less than, can be rated output torque, above the rated speed of constant power output.
Hangzhou Xiaoshan Zhenyu Transmission Co., Ltd. has created a professional team which contained with a numbers of engineers and technology experts.
Best in Hangzhou Xiaoshan Zhenyu Transmission Co., Ltd. can handle all sorts of types of gear reducers with good efficiency while providing ensured quality. Here you can find so as to solve your planetary gear motor issues.Go to Zhenyu Transmission to get fixed.
Hangzhou Xiaoshan Zhenyu Transmission Co., Ltd. is an expert in manufacturing a wide range of . We also have high quality types of gear reducers and many others. Visit to know more.
1. Running performance is different:
linear module control for stepping motor in open loop control, start frequency is too high or too much load step easy appear lost or blocked, stops frequently occur high speed overshoot phenomenon, so as to ensure the control accuracy, should handle up, slow down. Servo drive system for closed-loop control, the actuator can be directly to the motor encoder feedback signal sampling, internal position loop and speed loop, general won't appear step motor lose step or overshoot phenomenon, more reliable control performance.
2. Overload capacity is different:
step motor is generally not in linear gear coupling has overload ability. Servo motor has a strong ability of overload. It has the speed servo system overload and torque overload capacity. The maximum torque is three times the rated torque, can be used to overcome inertia load at startup moments of inertia moment. Stepper motor because there is no this kind of overload capacity, in order to overcome the inertia moment when selection, often need to select a larger torque of the motor, and the machine during the normal work and don't need that big torque, there is a moment of waste phenomenon.
3. Different control precision:
two-phase hybrid stepper motor step Angle is commonly 3. 6° , 1. 8° , five step away from the Angle of the hybrid stepping motor is commonly 0. 72 ° , 0. 36° 。 There are also some high-performance stepper motor step Angle is smaller.
4. Different speed response performance:
linear module of the stepper motor to accelerate from 0 to speed ( Generally for a few hundred revolutions per minute) Need to 200 ~ 400 milliseconds. The acceleration of servo system performance is good, with panasonic MSMA 400 w servo motor as an example, from the static accelerated to the rated speed 3000 RPM it takes only a few milliseconds, can be used for quick start-stop control occasions.
5. Low frequency characteristics of different:
step motor at low speed in linear module is easy to appear low frequency vibration phenomenon. Vibration frequency and load events related to drive performance, it is generally believed half frequency vibration frequency for the planetary gear motor no-load takeoff. This determined by the working principle of stepper motor in low frequency vibration phenomenon is very bad for the normal operation of the machine.
6. Different torque frequency characteristics:
linear module of the stepper motor's output torque increases with speed decreases, and at a high speed when it fell sharply, so its maximum working speed is in commonly 300 ~ 600 RPM. Servo motor as the constant torque output, namely in the rated speed ( General is 2000 RPM and 3000 RPM) Less than, can be rated output torque, above the rated speed of constant power output.
Hangzhou Xiaoshan Zhenyu Transmission Co., Ltd. has created a professional team which contained with a numbers of engineers and technology experts.
Best in Hangzhou Xiaoshan Zhenyu Transmission Co., Ltd. can handle all sorts of types of gear reducers with good efficiency while providing ensured quality. Here you can find so as to solve your planetary gear motor issues.Go to Zhenyu Transmission to get fixed.
Hangzhou Xiaoshan Zhenyu Transmission Co., Ltd. is an expert in manufacturing a wide range of . We also have high quality types of gear reducers and many others. Visit to know more.
