Screw guide module precision speed _ _ linear module manipulator linear positioning module manufacturers
by：Zhenyu
2020-11-01
In linear module, what is the difference between step planetary gear motor and servo motor?
Linear module is to use motor drive, can according to the industry needs to match the stepper motor or servo 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 module 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 planetary gear 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 gear coupling 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 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.
Getting doesn't have to be expensive, time-consuming, or difficult. It all comes down to the right method and a planetary gear motor electric motor suppliers in place.
Energetic, optimistic entrepreneurs often tend to believe that sales growth will take care of everything, that Hangzhou Xiaoshan Zhenyu Transmission Co., Ltd. will be able to fund our own growth by generating profits.
Rewards and discount programs give customers more reason to come back for electric motor suppliers again, especially in the competitive retail and services markets.
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 module 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 planetary gear 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 gear coupling 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 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.
Getting doesn't have to be expensive, time-consuming, or difficult. It all comes down to the right method and a planetary gear motor electric motor suppliers in place.
Energetic, optimistic entrepreneurs often tend to believe that sales growth will take care of everything, that Hangzhou Xiaoshan Zhenyu Transmission Co., Ltd. will be able to fund our own growth by generating profits.
Rewards and discount programs give customers more reason to come back for electric motor suppliers again, especially in the competitive retail and services markets.
