Sunday, June 12, 2011

Importance of Motion Control in Industrial Applications

In industrial applications, machines are the most important part. The efficiency of the machines lies on its control and the administration of the motion control system. The man function of the motion control system is to control the machines movement. WE can otherwise represent the importance of the control system by saying that they are responsible for controlling the heart beat of the motors. This is the reason why the motion controls for various machines vary as per their applications. For example the motion control system of a ball screw machine system will not produce accurate and precise results when applied to a motor driven tool.

In the normal working of the conventional servo drive system, the motion controller sends electrical pulse signals to the motor. The Servo motor uses a glass scale or rotary encoder to verify the motion and catch error signals. In case no error signals are identified, the encoder placed in the servo system sends back confirmation pulse signals to the motion controller to confirm the utilization of the motion command. In case the tool has glass scales incorporated in to the axis then positioning of the axis in the scale also needs to be verified. For this a signal is again sent from the motion control to the glass scale for the proper positioning of the axis. This is how a motion control system offers extensive accuracy without the backlash of the components of the servo system.

When a machine tool gets calibrated, the motion control checks the value that is entered to check the pitch errors as depicted by the encoders and the amplifiers. These errors occur when the input signals sent do not match the existing processing or motion of the unit. The motion controller has to play a major role in rectifying the error and check the value of the parameters to ensure the production of accurate movement. This is the reason why overshoot or undershoot of the tool is prevented from happening when the machine is moved to a high speed rate. 

A motion control system remains incorporated in almost all servo systems. They not only play an important role in controlling the motion of the machine tools but also prevent damage due to excessive load. By working on the action signals sent to it by the encoder, the controller works on it to ascertain if any error has taken place and accordingly commands the movement of the servo motor. In short it helps in decreasing the power consumption of the machine while increasing its efficiency.


No comments:

Post a Comment