If you’ve purchased a P16-R, T16-R, or P8-R actuator, it will arrive with an Ext-R control board. Unlike other R-Series actuators that plug in directly, these models require the Ext-R to function properly. The setup is simple once you know the steps, but getting the wiring right is critical. This post will walk you through the process so you can start using your actuator right away.
Step 1: Connect the Actuator
Plug the 5-wire actuator lead into the X2 connector on the Ext-R board. The wires are:
- Yellow = Positive reference
- Red = Motor +
- Black = Motor –
- Purple = Position feedback
- Orange = Negative reference
The board clearly indicates which way the plug goes, with an arrow showing what side the yellow wire goes on. Check the orientation carefully - reversed connections can cause damage.
Step 2: Determine Your Power Source
The actuator requires 12V input for proper operation and to meet its performance specifications.
If your control system only provides 6V (as many RC receivers and servo controllers do), you’ll need a separate 12V supply. When using a separate 12V power supply, the RC servo plug must be turned over and plugged into the opposite side of the pin header as shown in the image below.
Step 3: Connect the Ext-R to Your Control System
Connect your control system to the X1 connector. If by chance you have a standard servo lead with 12V on the red wire, you can plug it in to the X1 connector in the orientation shown below.
Step 4: Add External Power (If Needed)
If your control system does not provide 12V directly, connect a 12V power supply to the power pins on X1. Always confirm polarity before applying power. When you are done plugging everything in, your wiring should match the diagram below.
Setting up your P16-R, T16-R, P8-R or L8-R actuator with the Ext-R board is straightforward once you understand the power requirements and wiring layout. The key step is ensuring you supply 12V DC and cut the 6V line if an external supply is added. Follow this guide and you’ll have your actuator running smoothly with reliable, servo-style linear motion and the option to monitor performance in real time.
For more information about using the Ext-R board including adjusting feedback and adjusting the current limit, check out the Ext-R DatasheetBrowse Actuators From Actuonix Today
View our collection of actuators by model or industry today. As a leading manufacturer and innovator in the micro motion marketplace, Actuonix serves companies large and small in aerospace, medical, robotics, and more. Contact us today to place an order or request a quote.
