All Collections
General Welding on Beacon
Integrate with External Equipment
Integrate with External Equipment

Learn how to integrate external sensors and actuators

Gaurav Shetty avatar
Written by Gaurav Shetty
Updated over a week ago

Have you ever wanted to control an external device such as a clamp, a rotary table, or a light tower during the welding process of a part? How about having the ability to wait for more than just a light button? This guide will you walk through how to take advantage of external inputs and outputs.

Let's Get Started

There are 4 available ports on the left side of the robot cabinet with input/output functionality which are named RED BUTTON, BLUE BUTTON, YELLOW BUTTON and GREEN BUTTON. Each port consists of 2 channels (input and output) and a splitter can be used to isolate individual capabilities, if necessary.

Pinout of the Receptacle

The pins on the receptacles on the robot have the following functions:

Pin 1 - +24V Brown Wire

Pin 2 - Output from Robot - White Wire

Pin 3 - +0V Blue Wire

Pin 4 - Input to Robot - Black WIre

The following illustration shows cable colors for connecting a M12 4 pin cable to the receptacle on the cabinet.

To wire a single device to the robot cabinet you will use the corresponding pin pairs.

To connect an output such as a solenoid valve you would wire it using pins 2 and 3, the white and blue wires on a standard IO cable set.

To connect an input such as a proximity switch to the robot you would wire it using pine 1 and 4, the brown and black wires on a standard IO cable set.

An example of a useful cable can be found at Cable Example

Using a Splitter to Isolate Input and Output

Here is an example of a splitter with 2 channels. Channel 1 will control output devices and Channel 2 will be used to connect input devices such as sensors.


  • A 4-pole (or 5-pole) M12 male Field-wireable T coupler will be needed to isolate the input and output channels on each available port.

  • Channel 1 (pin 2 on the robot cabinet receptacle) is for Output Devices and Channel 2 (pin 4 on the robot cabinet receptacle) is for Input Signal Devices.

  • 24VDC compatible devices must be used

  • Maximum current drawn across all color-coded output ports is 900mA.

  • You can use either 4-pole M12 to 4-pole M12 or 4-pole M12 to 3-pole M8 splitters

  • Many sensors and solenoid valves use M8 3 wire connections making them easy to hook up using dual ended cable assemblies

Useful Product Links

Did this answer your question?