Mitsubishi AL-20MR-A - User Manual

2
Welcome, and thank you for purchasing a Mitsubishi Alpha simple application controller.
In your pack you will find:
1. Fax-back registration and free training form
2. Mitsubishi Alpha programmable controller
3. Mitsubishi Visual Logic programming software on CD
4. Programming cable
5. This quick start guide in hard copy and electronic copy on the Visual Logic CD
The purpose of this quick start guide is to provide new users with enough knowledge to get
started installing and programming Mitsubishi Alpha’s.
The Mitsubishi Alpha controllers host many advanced features. All these features are not
covered here. For a detailed discussion of advanced features please refer to the relevant
technical manuals.
Your Alpha is provided with the following manuals:
• Hardware manual – Physical and electrical information
• Programming manual – Function blocks, keypad and direct programming
• Software manual – Function blocks and programming with a PC
You can find these on your Mitsubishi Visual Logic CD.
This guide applies to both α and α2 controllers. “Alpha” refers to both α and α2.
This document will guide you through the following lessons:
1. Important features of the Mitsubishi Alpha programmable controller
2. How to wire your Alpha’s power supply, inputs and outputs
3. A Quick introduction to programming the Alpha
4. How to program your Alpha using the front keypad and LCD screen
5. A Quick introduction to Visual Logic programming software
6. How to write a simple program using your PC and Visual Logic
7. How to write a more complex program using your PC and Visual Logic
8. An example program for a Manual/Automatic Ventilation Fan
9. An example program for time switched lighting
10. Converting ladder Logic to Alpha’s Logic and Function blocks
Q u i c k S t a r t G u i d e
Mitsubishi Alpha / Alpha2
Programmable Controller
The contents of this document are subject to change without prior notice. There may be variations
from the illustrations. NHP accepts no liability for damage or injury resulting from the use of the
contents of this document. Examples in this document are for demonstration purposes only.
All rights reserved.

Mitsubishi AL-20MR-A Specifications

General

Input Points	12
Output Points	8
Output Type	Relay
Type	PLC
Power Supply	AC100-240V
Input Voltage	24V DC
Operating Temperature	0°C to 55°C

Summary

Key Features of the Mitsubishi Alpha Controller

Mitsubishi Alpha Models and Expansion Modules

Details available models and expansion modules for Alpha controllers.

Wiring Alpha Power Supply, Inputs, and Outputs

100 V AC - 240 V AC Power Supply and Inputs

Explains wiring for AC power supply and inputs for 100-240V Alpha units.

24 V DC Power Supply and Inputs

Details wiring for DC power supply and inputs for 24V DC Alpha units.

Wiring Alpha Output Terminals

Illustrates wiring for relay type output terminals on Alpha controllers.

Programming Alpha via Keypad and LCD Screen

Setting Alpha Time and Date via Keypad

Entering Run, Stop, and Programming Modes

Choosing Function Blocks and Connecting to Inputs

Explains selecting and connecting function blocks to controller inputs on the Alpha.

Setting Up a Function Block

Connecting Function Blocks to Outputs

Introduction to Visual Logic Software

Installing Visual Logic on Your PC

Covers PC system requirements and installation steps for Visual Logic software.

Visual Logic Programming Environment

Visual Logic Software Modes

Writing Simple Programs with PC and Visual Logic

Creating a Program in Visual Logic

Steps to create a new project and add basic blocks in Visual Logic.

Simulating Your Program

Guide to simulating program logic within Visual Logic before downloading.

Configuring Your COM Port

Steps for configuring the PC's COM port for controller communication.

Downloading and Monitoring Your Program

Instructions for downloading programs to the controller and monitoring execution.

Running Your Program on the Controller

Stopping Your Program on the Controller

Reading a Program from the Controller

Writing More Complex Programs with PC and Visual Logic