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In Depth

PAL Modular Electro-Pneumatic System

The Versatile PAL System - Your "Pneumatic Automation Link"

The Pneumatic Automation Link (PAL) system is an electro-pneumatic system that can contain both electrical I/O as well as a solenoid valve bank. In effect, a single assembly can combine solenoid valves of various types, digital or analog I/O and common power sources for all control components. Using a limited variety of basic components many different configurations can be built. Valves, are compact yet have high flow ratings (Cv) and high performance.

The system can be controlled by direct wiring if only pneumatic valves are used or via Ethernet/IP if a combination of electrical I/O and valves are part of your application. To simplify wiring and system design, DC power is connected through a central module using M8 connections. All PAL components come with an efficient diagnostic system.

Use our PAL Configuration Tool to specify
and add a complete PAL system to your cart.

Using the PAL System for Field I/O

The Pneumatic Automation Link can be used as a field I/O system by itself. An Ethernet/IP slave bus coupler allows the system to be controlled remotely via Ethernet/IP master as well as a bus expansion coupler that allows the system's installation to be physically split up into parts while only using one connection to the master

I/O modules for the NITRA PAL electro-pneumatic system include discrete DC input and output modules available in a variety of voltage and current ranges.

Up to 20 digital input modules/128 digital input points supported per system
Up to 20 digital output modules/128 digital output points supported per system
Up to 4 analog input modules/16 analog input channels supported per system
Up to 4 analog output modules/16 analog output channels supported per system
IP65 rated equipment designed to be machine mounted
Quick and simple wiring using M12 and M8 connections

Using the PAL System as a Modular Pneumatic Valve Bank

The Pneumatic Automation Link can be used as a valve bank without any field I/O. Valves can be controlled via an Ethernet/IP master, or by discrete control wiring through the conventional electrical modules. Modular pneumatic valve bases support either 3 or 4 stations and 3, 4, 6 or 8 solenoids per base. Many valve configurations are available including, 3/2, 5/2 and 5/3 center closed.

Up to 40 valve bases supported per system
Conventional electrical modules have either 25-pin or 44-pin connection. All other electrical connections are M8 and M12 quick-disconnect
The complete system, including all electrical and pneumatic components, is rated IP65
Push-to-connect fittings are cartridge-style for easy replacement or changing the size of the fitting
Pneumatic system rated vacuum up to 145 psi

Using the PAL System as an Electro-Pneumatic System

Using the PAL system as a complete electro-pneumatic system provides the most benefit to the designer and installer. With a large number of I/O and pneumatic valves supported, the possibilities of various configurations are practically endless. Add the fact that the PAL is machine mountable and IP65 rated and you have a very versatile, rugged, modular system that is easy to design, install and maintain.