Motor series: low inertia, medium capacity.
Using a serial absolute / incremental encoder.
Rated output power: 1.0kw.
Rated speed: 3000rpm.
With a brake band.
Shaft end: straight shaft.
Performance comparison of servo motor and stepping motor.
Stepper motor as an open-loop control system, and modern digital control technology has the essential link.
In the current domestic digital control system, stepping motor is widely used.
With the emergence of digital AC servo system, AC servo motor is more and more used in digital control system.
In order to adapt to the development trend of digital control, most of the motion control system adopts stepping motor or full digital AC servo motor as executive motor.
Although they are similar in control mode (pulse train and directional signal), there are great differences in performance and application.
The use performance of the two are compared.
Servo motor series: low inertia, medium / high power.
Rated output: 11kw.
Rated speed: 1500r/min.
Electromagnetic brake: there.
Shaft end specification: Standard (straight axis).
Features: low inertia for high speed / acceleration and deceleration operation occasions.
IP level: IP67.
Application example:
1, food processing machinery HC-RF103B.
2, printing machine.
3, injection molding machine (11KW, 15KW)
HC-RF103B
4, large press machine (11KW, 15KW).
The protection level of the HF-SP/HF-JP series servo motor is IP67 (except the shaft part).
Low inertia of the power servo motor (0.5kW ~ 9kW), the maximum speed: 6000r/min (rated speed: 3000r/min),
Suitable for high frequency positioning and acceleration / deceleration operations, especially for food processing machines and printing machines HC-RF103B.
Low inertia, high power, no cooling fan servo motor (11kW and 15kW), maximum speed: 3000r/min (rated speed: 1500r/min).
The motor structure is more compact due to the adoption of the non cooling fan design, and the connection is reduced by using the power source connector.
(compared with the HF-LP series servo motor with the same power, the volume is reduced by about 46%, and the weight is reduced by about 34%,
Suitable for high frequency positioning and acceleration / deceleration operations, especially for injection molding machines and large presses HC-RF103B.
HF-JP703 (4) /903 (4) maximum speed: 5000r/min. The length of the line: 30M.
Relay type.
IP level: IP20.
Bending life: high bending life.
Encoder with cable (amplifier side); for HF-KP/HF-MP series. Drive: MR-H_ACN series built-in positioning function.
Rated output: 3.5KW.
In servo drive speed closed loop,
Rotor speed measurement accuracy is very important to improve the dynamic and static characteristics of the speed control loop.
In order to seek the balance between measurement precision and system cost, incremental photoelectric encoder is generally used as the speed measuring sensor,
The corresponding method is M/T velocity measurement.
Although the M/T measurement method has a certain measurement accuracy and a wide range of measurement,
But this method has its inherent defects,
Mainly includes: the measurement period must be detected at least one complete encodeer pulse, limiting the minimum detectable speed HC-RF103B.
2 control system for speed control of the timer switch is difficult to maintain synchronization,
Can not guarantee the accuracy of measurement in the situation where the speed change is largger HC-RF103B.
Therefore, it is difficult to improve the speed tracking and control performance of servo drive by using the traditional speed loop design method.