Unitronics EX-A2X - User Manual

Unitronics
1
EX-A2X I/O Expansion Module Adapter, Isolated
The EX-A2X interfaces between a variety
of I/O expansion modules and specific
Unitronics OPLCs.
A single adapter can be connected to up
to 8 expansion modules.
The EX-A2X may either be snap-mounted
on a DIN rail, or screw-mounted onto a
mounting plate.
Component identification
1 Status indicators
2 COM port, EX-A2X to OPLC
3 Power supply connection points
4 EX-A2X to expansion module
connection port
 Before using this product, it is the responsibility of the user to read and understand this document and
any accompanying documentation.
 All examples and diagrams shown herein are intended to aid understanding, and do not guarantee
operation. Unitronics accepts no responsibility for actual use of this product based on these examples.
 Please dispose of this product in accordance with local and national standards and regulations.
 Only qualified service personnel should open this device or carry out repairs.
User safety and equipment protection guidelines
This document is intended to aid trained and competent personnel in the installation of this equipment as
defined by the European directives for machinery, low voltage, and EMC. Only a technician or engineer trained
in the local and national electrical standards should perform tasks associated with the devices electrical wiring.
Symbol Meaning Description
Danger
The identified danger causes physical
and property damage.
Warning
The identified danger can cause
physical and property damage.
Symbols are used to highlight
information relating to the users
personal safety and equipment
protection throughout this document.
When these symbols appear, the
associated information must be read
carefully and understood fully.
Caution Caution Use caution.
 Failure to comply with appropriate safety guidelines can result in severe personal injury or
property damage. Always exercise proper caution when working with electrical equipment.
www.klinkmann.com
5 / 2011

Unitronics EX-A2X Specifications

General

Brand	Unitronics
Model	EX-A2X
Category	Adapter
Language	English

Summary

User safety and equipment protection guidelines

Safety Symbols and Precautions

Details safety symbols (Danger, Warning, Caution) and general precautions for equipment protection.

Environmental Considerations

Environmental Considerations

Guidelines for installation environment, avoiding dust, moisture, heat, and vibration.

Mounting the Module

DIN-rail mounting

Instructions for mounting the EX-A2X module onto a standard 35mm DIN rail.

Screw-Mounting

Screw-Mounting

Details on how to mount the EX-A2X adapter using screws onto a surface.

Connecting the OPLC to the EX-A2 X

Connecting the OPLC

Procedure for connecting the OPLC to the EX-A2X adapter using the communication cable.

Connecting Expansion Modules

Connecting Expansion Modules

Steps to connect I/O modules to the adapter or to other modules, including safety notes.

Wiring

Wiring Safety Precautions

Important safety guidelines to follow during the wiring process, avoiding live wires and incorrect connections.

Wiring Procedures

Wiring Procedures

Step-by-step guide for wire stripping, terminal insertion, and tightening for secure connections.

Wiring Power Supply

Wiring Power Supply

Instructions for connecting the power supply to the EX-A2X and OPLC, including earth connection and voltage considerations.

EX-A2 X Technical Specifications

Addressing I;Os on Expansion Modules

I;O Addressing Formula

Explains the formula for assigning addresses to I/O modules based on their location.