LIFA+servo position control

Using Arduino Motors, Mechanics, Power and CNC
#1

HI all, I have installed the Labview Interface for Arduino.
I just need VI s for the position control of servo motor
I have few questions regarding this

  1. what is closed loop position control , can i do that with servo motor ( I am using RC servo -VS-2)
    2)can i control my servo without using Arduino code , directly from m Labview
    3)How to implement PID controller for position control of Servo

Thanx

#2

Closed-loop control means a sensor measure absolute position and a feedback mechanism brings the motor to the desired position as measured by the sensor.

Open-loop control means stepper-motors where the number of steps can be counted - the position will be accurate unless steps are missed through over-large torque.

A servo consists of a motor, controller and closed-loop control - its all handled in the servo unit.

#3

A servo is a device that you control in Open Loop. In other words you tell it where you want to go and hope it gets there because it has no way of telling you it has completed the job. For closed loop you would need a feedback device - a potentiometer, an encoder, a bunch of switches...

Provided the servo is large enough for the intended application it works just fine. If it is too small, it may stall and never make it where you tell it to go.

#4

can any body send me the LabVIEW files for position control

#5

Hi
For closed loop you would need a feedback device - a potentiometer, an encoder, a bunch of switches...
can i use a potentiometer, an encoder, a bunch of switches with my servo also for closed loop control

#6