Controlling Actuonix PQ12-P linear actuator

Projects General Guidance
1

Hi,

I have an Actuonix PQ12-P linear actuator that i want to control with my Arduino.

It is sent all of the way out by applying voltage over 2 of its pins, and retracted by reversing the polarity. its position can be monitored through the actuators' potentiometer but i do not need position feedback.

How can I switch the polarity from a power supply using an arduino to make it go back and forth? i'm not really sure where to start.

the actuator in question: http://www.robotshop.com/uk/firgelli-technologies-pq12-actuator-20mm-63-1-12v-potentiometer.html

2

You need a h-bridge such as are commonly used to control DC motors. Make sure to choose one that can provide the current required by your actuator

...R

3

Hi Nick1992

Just wanted to mention quickly that it's important to either monitor the actuator's position using the feedback functionality or install external end-limit switches. P series actuators do not have internal limit switches or stall protection and applying power even for a short time after the actuator has reached it's end limit can drastically reduce the life of the device.

PQ12-R series servos found here: Actuonix PQ12-R Micro Linear Servo are intended for use with arduino/RC as they have the same 3-wire connector as a rotary servo as well as stall protection.

Hope this helps you.