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This chapter explains how to connect the device to the electrical I/O outside of the control-
ler. This I/O is extremely flexible and can be used in many different devices, including pneu-
matic relays, PLCs and emergency stop buttons.
The figure below shows the electrical interface layout inside the control box.
8.5. Controller Electrical IO
This section describes the electrical specifications for the following 24V digital I/Os for the
controller
• Dedicated security I/O.
• Configurable common I/O.
It is very important to install xArm according to the electrical specifications, and both above
I/O must comply with the specifications. The digital I/O can be powered by a 24V power
supply or by an external power supply by configuring the power junction box. PWR is the
internal 24V power output. The lower terminal (24V-IN) is the 24V input external power input
for I/O. The default configuration is to use internal power, see below.
If larger current is needed, connect the external power supply as shown below.
8.5.1.Universal specifications for all Digital I/O