Contents

SAFETY PRECAUTIONS
CONDITIONS OF USE FOR THE PRODUCT
INTRODUCTION
COMPLIANCE WITH EMC AND LOW VOLTAGE DIRECTIVES
RELEVANT MANUALS
CONTENTS
MANUAL PAGE ORGANIZATION
TERMS
PACKING LIST
CHAPTER 1 OVERVIEW
- 1.1 Features
- 1.2 Signal Transmission Between the QD73A1 and Others
CHAPTER 2 SYSTEM CONFIGURATION
- 2.1 Applicable Systems
- 2.2 How to Check the Function Version and Serial Number
CHAPTER 3 SPECIFICATIONS
- 3.1 Performance Specifications
- 3.2 Number of Parameter Settings
- 3.3 List of Functions
- 3.4 I/O Signals from/to the CPU Module
  - 3.4.1 I/O signal list
  - 3.4.2 Details of input signals
  - 3.4.3 Details of output signals
- 3.5 Specifications of I/O Interfaces with External Devices
  - 3.5.1 Electrical specifications of I/O signals
  - 3.5.2 Signal layout for external device connectors
  - 3.5.3 List of I/O signal details
  - 3.5.4 I/O interface internal circuit
- 3.6 Memory Configuration and Use
- 3.7 List of Buffer Memory Addresses
CHAPTER 4 SETTINGS AND PROCEDURE BEFORE OPERATION
- 4.1 Handling Precautions
- 4.2 Settings and Procedure Before Operation
- 4.3 Part Names
- 4.4 LED
- 4.5 Zero/gain Adjustment
- 4.6 Wiring
  - 4.6.1 Wiring precautions
  - 4.6.2 Precautions when connecting an encoder
  - 4.6.3 External device connectors
CHAPTER 5 DATA USED FOR POSITIONING
- 5.1 Types of Data
- 5.2 Positioning Parameters
- 5.3 OPR Parameters
- 5.4 Positioning Data
- 5.5 Monitor Data
- 5.6 Control Data
CHAPTER 6 VARIOUS SETTINGS
- 6.1 Adding a Module
- 6.2 Switch Setting
  - 6.2.1 Rotation direction setting
  - 6.2.2 Accumulated pulse setting
  - 6.2.3 Multiplication setting
  - 6.2.4 OPR direction setting
  - 6.2.5 OPR method setting
  - 6.2.6 Encoder I/F setting
  - 6.2.7 Analog voltage resolution setting
  - 6.2.8 Feedback pulse addition/subtraction setting
  - 6.2.9 Deviation counter clear setting
- 6.3 Parameter Setting
- 6.4 Positioning Data Setting
- 6.5 Auto Refresh
CHAPTER 7 PROGRAMMING
- 7.1 Precautions on Programming
- 7.2 Programs for Positioning
- 7.3 When Using the Module in a Standard System Configuration
  - 7.3.1 Parameter setting program
  - 7.3.2 OPR program
  - 7.3.3 Major positioning control program
  - 7.3.4 Fixed-feed operation program
  - 7.3.5 JOG operation program
  - 7.3.6 Control change program
  - 7.3.7 Stop program during positioning
- 7.4 When Using the Module in a Remote I/O Network
  - 7.4.1 Parameter setting program
  - 7.4.2 OPR program
  - 7.4.3 Major positioning control program
  - 7.4.4 Fixed-feed operation program
  - 7.4.5 JOG operation program
  - 7.4.6 Control change program
  - 7.4.7 Stop program during positioning
CHAPTER 8 OPR CONTROL
- 8.1 Overview of OPR Control
- 8.2 Near-point Dog Method
- 8.3 Count Method
- 8.4 Operation Timing and Processing Time of OPR Control
- 8.5 OPR Parameter Setting
CHAPTER 9 MAJOR POSITIONING CONTROL
- 9.1 Overview of Major Positioning Control
- 9.2 Data Required for Major Positioning Control
- 9.3 Relation Between Each Control and Positioning Data
- 9.4 Specifying a Positioning Address
- 9.5 Checking the Current Value
- 9.6 Details of Major Positioning Control
  - 9.6.1 Position control mode
  - 9.6.2 Speed-position control switch mode
- 9.7 Operation Timing and Processing Time of Major Positioning Control
CHAPTER 10 JOG OPERATION
- 10.1 Operation of JOG Operation
- 10.2 Operation Timing and Processing Time of JOG Operation
- 10.3 Data Setting for JOG Operation
CHAPTER 11 CONTROL SUB FUNCTIONS
- 11.1 Electronic Gear Function
- 11.2 Speed Limit Function
- 11.3 Stroke Limit Function
- 11.4 Upper Limit Switch (FLS)/Lower Limit Switch (RLS) Function
- 11.5 Current Value Change Function
- 11.6 Speed Change Function
- 11.7 Deviation Counter Clear Function
- 11.8 In-position Function
- 11.9 Accumulated Pulse Error Detection Function
  - 11.9.1 Measuring and saving the reference value in the flash ROM
  - 11.9.2 Setting the accumulated pulse error detection function
CHAPTER 12 STOPPING AND RESTARTING CONTROL
- 12.1 Stopping Control
- 12.2 Restarting the Speed-position Control Switch Mode
CHAPTER 13 COMMON FUNCTIONS
- 13.1 Module Status Monitor Function
- 13.2 Error History Function
- 13.3 Module Error Collection Function
- 13.4 Error Clear Function
CHAPTER 14 TROUBLESHOOTING
- 14.1 Checking an Error on GX Works2
- 14.2 Troubleshooting
  - 14.2.1 Troubleshooting procedure
  - 14.2.2 When the motor does not stop
  - 14.2.3 When positioning cannot be executed
  - 14.2.4 When a positioning error occurs
  - 14.2.5 When the positioning speed is different from the specified speed
  - 14.2.6 When operation stops abnormally during positioning
  - 14.2.7 OPR error
- 14.3 Details of Errors
  - 14.3.1 Types of errors
  - 14.3.2 Storage of errors
  - 14.3.3 Error reset
  - 14.3.4 Error code list
APPENDICES
- Appendix 1 Functions Added or Changed
  - Appendix 1.1 Functions added
  - Appendix 1.2 Functions changed
- Appendix 2 Connection Examples
  - Appendix 2.1 Example of connection with a servo amplifier manufactured by Mitsubishi Electric Corporation
  - Appendix 2.2 Example of connection with a servo amplifier manufactured by YASKAWA Electric Corporation
- Appendix 3 Comparison of the QD73A1 and the AD70/A1SD70
- Appendix 4 When Using GX Developer
  - Appendix 4.1 Operation of GX Developer
- Appendix 5 Terms
- Appendix 6 External Dimensions
INDEX
REVISIONS
WARRANTY

Mitsubishi Electric MELSEC Q QD73A1 User's Manual

Mitsubishi Electric MELSEC Q QD73A1 manual cover

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Mitsubishi Electric MELSEC Q QD73A1 Specification

The Mitsubishi Electric MELSEC Q QD73A1 is a high-performance analog input module designed for the MELSEC-Q series programmable logic controllers (PLCs). It is engineered to provide precise and reliable data acquisition for industrial automation applications. The QD73A1 module supports four analog input channels, each capable of processing voltage and current signals. It accepts voltage inputs ranging from -10V to +10V, and current inputs from 4mA to 20mA, offering flexibility for various sensor and signal types.

The module features a 16-bit resolution A/D converter, ensuring accurate and detailed signal representation, which is crucial for processes requiring fine control and monitoring. It supports a conversion speed of 20ms per channel, making it suitable for applications demanding rapid data updates. The QD73A1 is equipped with a variety of diagnostic functions, including wire break detection for current inputs, enhancing system reliability and maintenance efficiency.

Compatibility with the MELSEC-Q series PLCs ensures seamless integration and communication within larger control systems. The module's compact design facilitates easy installation in control cabinets, optimizing space usage. It operates within a temperature range of 0°C to 55°C, ensuring robust performance in various environmental conditions. The QD73A1 adheres to international standards for electromagnetic compatibility and industrial safety, underscoring Mitsubishi Electric’s commitment to quality and reliability.

This analog input module is ideal for applications in sectors such as manufacturing, process control, and building automation where precise and timely data acquisition is essential. Its versatile input options, high resolution, and fast processing capabilities make it a valuable component for enhancing the performance and accuracy of automation systems.

Mitsubishi Electric MELSEC Q QD73A1 F.A.Q.

How do I connect the MELSEC Q QD73A1 module to a PC for initial setup?

To connect the MELSEC Q QD73A1 module to a PC, use a USB or Ethernet interface. Ensure that you have the necessary drivers installed on your PC and use the Mitsubishi Electric configuration software to establish communication.

What are the steps to troubleshoot communication errors with the QD73A1 module?

Check all physical connections and ensure cables are properly attached. Verify the configuration settings in the software match the hardware setup. Check error codes on the module display and consult the manual for specific troubleshooting steps.

Can I upgrade the firmware of the MELSEC Q QD73A1 module?

Yes, firmware upgrades can be performed using the Mitsubishi Electric configuration software. Ensure that you have the correct firmware file and follow the on-screen instructions to complete the upgrade process.

How do I reset the QD73A1 module to factory settings?

To reset the QD73A1 module to factory settings, use the configuration software to access the reset function. Follow the software instructions carefully as this process will erase all user configurations.

What maintenance is required for the MELSEC Q QD73A1 module?

Regularly check and clean the module to prevent dust accumulation. Inspect connections and cables for wear and tear. Periodically update the configuration software and firmware to the latest versions.

How can I monitor the status of the QD73A1 module in a networked system?

Use the Mitsubishi Electric monitoring tools within the configuration software to view real-time status, including error logs and performance metrics, of the QD73A1 module in a networked environment.

Is it possible to expand the I/O points on the QD73A1 module?

The QD73A1 module supports expansion through additional I/O modules in the MELSEC Q series. Consult the module's manual for compatible expansion options and installation procedures.

What should I do if the QD73A1 module is not powering up?

Ensure the power supply is functioning correctly and properly connected. Check the fuse and replace it if necessary. Verify that the module is seated correctly in the rack.

Can I integrate the QD73A1 module with third-party devices?

Yes, the QD73A1 module can be integrated with third-party devices using standard communication protocols like Modbus. Ensure compatibility by verifying the communication protocol settings.

What environmental conditions are optimal for the QD73A1 module?

The QD73A1 module should be operated in a clean, dry environment with an ambient temperature between 0°C and 55°C. Avoid exposure to direct sunlight or corrosive gases.