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Servos

Servos are devices that will certainly enliven the motility of Your electronic project. They are especially popular in the widely understood automation, robotics and simulation, mainly in vehicles with remote control. Design and method services control allows you to control various physical processes with high accuracy. The store Botland you will find serwomechanizmy different sizes and parameters of working in accordance with the requirements of Your application. We also have useful accessories for rotary actuators, such as orczyki and wires branched.

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  • Accessories for filing Accessories for filing

    The appearance on the market of the servos changes the engineer production automation and many other industries. At a later time, there was a miniature servos for modeling, which have also become popular among designers of robots and various vehicles with a remote control....

  • Servo type standard Servo type standard

    Serwomechanizmy are devices that in their principle of operation uses the phenomenon of feedback , with the objective of achieve the planned effect. The reaction of the manual of the servo amplifier can be caused by such factors as the change in the velocity, temperature or...

  • The servo type medium The servo type medium

    Serwomechanizmy are the main drives in each workshop modelarza RC and robotics-lover. The ease and accuracy of control, small size and weight, high torque, and also – no less important – attractive price, responsible for the immortal (and it has been for many years) the...

  • Actuators type micro Actuators type micro

    The range of servo-type micro operating range from 120° to 360°. Actuators type micro work on the same principle as their larger counterparts - using the same attachment hardware and external software that for single beds and mega, you can manage smaller services like micro....

  • Servo continuous operation 360° Servo continuous operation 360°

    Servos suitable for continuous operation, is the individual design of the standard feed, which uses an open loop feedback for speed control servos instead of with feedback for position control servo. Servo 360° are, in fact, the motor-integrated control system in one housing....


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Power steering - wide embodiment of the electric motor for controlling various processes of physical

The servos used in vehicles with remote control, have standard sizes, from micro, medium and standard to the size of the mega. Regardless of the size, the structure of a typical servo uses the phenomenon feedback, i.e., for a given control signal provided to the servo, it needs to respond on an appropriate basis, in accordance with the expected result. The servo mechanism is connected to the potentiometer, the shaft of which is mounted in the rod. On the rod are fixed barrels, drums, cans, through which is transmitted the drive from the servo to the target element, it is controlled.

Connect the servo is not that difficult!

Most servo uses a 3-pin JST connector with internal thread with a pitch of 2.54 mm. connector will be announced on the wire 3: wire to ground (black or brown) wire to the positive supply (red) and the wire for the control signal (often yellow). Insulation color individual wires of the servo can vary depending on the manufacturer's specifications, but the order of the wires in the connector is the same. If the length of the tail servo enough, you can use extension cables with compatible connectors.

Management serwomechanizmami

Third output connector of the servo, used to supply the control signal, which has the task to set the position of the motor shaft in the desired position. The control signal is a square wave with a variable fill (PWM). The frequency of the PWM signal and the standard is 50 Hz, which means that one signal period lasts 20 MS. The filling signal within one period is in the range from 1 MS to 2 MS. The pulse with filling of 1 MS causes rotation of the shaft of the servo is extremely counter-clockwise, and momentum with the filling of 2 MS, the servo rotates in the opposite extreme position. To the shaft of the servo returned to neutral position, should be introduced into the servo signal on the filling of 1.5 MS. One of the easiest ways to control serwem is the use of one of the channels of hardware PWM on Board of the Arduino.

The power to the servos

In vehicles with remote control, batteries operate at a nominal voltage is often only 4.8 V, and using large servos, you will need to use a battery voltage of 12.0 V. application of the stationary nature of the work, the best would be using a power adaptor with an output voltage equivalent to the requirements of the manufacturer of the servo. Regardless, power, motor, servo consumes an increased amount of electricity with increasing mechanical load. Wrong servo providing insufficient torque, this can lead to increased energy losses in the power system, and even lead to malfunction of the driver.

Servo with a full range of angle of rotation

A standard servo can make the rotation of the shaft by no more than angle of 90° to the left or right. In the case of more complex applications is to take the servo in the range of the angle of rotation is 360°. Such servos can operate as a conventional electric motor with a constant rotation speed. The maximum speed of the servo in the range of the rotation angle is generally 60 Rev/min. If you need for your application, higher values of the rotation speed, the best option would be the use of conventional DC motor, and in the exact task it is best to use a stepper motor. Unlike conventional servos, servo 360° are equipping a small potentiometer that allows the calibration of the servo control signal. To supply on the complete range of angle of rotation of the filling pulse with 1.5 MS will stop the motor, servo, pulses with a longer or shorter period, cause rotation of the shaft of the servo respectively clockwise or counterclockwise.