Contents

Cover
Introduction
CONTENTS
1. System Configuration
- 1.1 System Configuration for PLC Development
- 1.2 User PLC (Ladder) Development Procedure
2. PLC Processing Program
- 2.1 PLC Processing Program Level and Operation
- 2.2 User Memory Area Configuration
3. Input/Output Signals
- 3.1 Input/Output Signal Types and Processing
- 3.2 Handling of Input Signals Designated for High Speed Input
- 3.3 High Speed Input/output Designation Method
- 3.4 Limits for Using High Speed Processing Program
  - 3.4.1 Separation of Main Processing and High Speed Processing Bit Operation Areas
  - 3.4.2 Separation of Remote I/O Output
4. Parameters
- 4.1 PLC Constants
- 4.2 Bit Selection Parameters
5. Explanation of Devices
- 5.1 Devices and Device Numbers
- 5.2 Device List
- 5.3 Detailed Explanation of Devices
  - 5.3.1 Input/output X, Y, U, W
  - 5.3.2 Internal Relays M , G and F, Latch Relay L
  - 5.3.3 Special Relays E
  - 5.3.4 Timer T, Q
  - 5.3.5 Counter C, B
  - 5.3.6 Data Register D
  - 5.3.7 File Register R
  - 5.3.8 Accumulator A
  - 5.3.9 Index Registers Z and V
  - 5.3.10 Nesting N
  - 5.3.11 Pointer P
  - 5.3.12 Decimal Constant K
  - 5.3.13 Hexadecimal Constant H
6. Explanation of Commands
- 6.1 Command List
  - 6.1.1 Basic Commands
  - 6.1.2 Function Commands
  - 6.1.3 Exclusive commands
- 6.2 Command Formats
  - 6.2.1 How to Read the Command Table
  - 6.2.2 No. of Steps
  - 6.2.3 END Command
  - 6.2.4 Index Ornament
  - 6.2.5 Digit Designation
7. Basic Commands
8. Function Commands
9. Exclusive Commands
- 9.1 ATC Exclusive Command
  - 9.1.1 Outline of ATC Control
  - 9.1.2 ATC Operation
  - 9.1.3 Explanation of Terminology
  - 9.1.4 Relationship between Tool Registration Screen and Magazines
  - 9.1.5 Use of ATC and ROT Commands
  - 9.1.6 Basic Format of ATC Exclusive Command
  - 9.1.7 Command List
  - 9.1.8 Control Data Buffer Contents
  - 9.1.9 File Register (R Register) Assignment and Parameters
  - 9.1.10 Details of Each Command
  - 9.1.11 Precautions for Using ATC Exclusive Instructions
  - 9.1.12 Examples of Tool Registration Screen
  - 9.1.13 Display of Spindle Tool and Standby Tool
- 9.2 Rot Commands
  - 9.2.1 Command List
- 9.3 Tool Life Management Exclusive Command
  - 9.3.1 Tool Life Management System
  - 9.3.2 Tool Command System
  - 9.3.3 Spare Tool Selection System
  - 9.3.4 Interface
  - 9.3.5 User PLC Processing When the Tool Life Management Function Is Selected
  - 9.3.6 Examples of Tool Life Management Screen
- 9.4 DDB (Direct Data Bus) ... Asynchronous DDB
  - 9.4.1 Basic Format of Command
  - 9.4.2 Basic Format of Control Data
- 9.5 External Search
  - 9.5.1 Function
  - 9.5.2 Interface
  - 9.5.3 Search Start Instruction
  - 9.5.4 Timing Charts and Error Causes
  - 9.5.5 Sequence Program Example
10. PLC Help Function
- 10.1 Alarm Message Display
  - 10.1.1 Interface
  - 10.1.2 Message Creation
  - 10.1.3 F or R Type Selection Parameter
- 10.2 Operator Message Display
  - 10.2.1 Interface
  - 10.2.2 Operator Message Preparation
  - 10.2.3 Operator Message Display Validity Parameter
- 10.3 PLC Switches
  - 10.3.1 Explanation of CRT Screen
  - 10.3.2 Explanation of Operation
  - 10.3.3 Signal Processing
  - 10.3.4 Switch Name Preparation
- 10.4 Key Operation by User PLC
  - 10.4.1 Key Data Flow
  - 10.4.2 Key Operations That Can Be Performed
  - 10.4.3 Key Data Processing Timing
  - 10.4.4 Layout of Keys on Communication Terminal
  - 10.4.5 List of Key Codes
- 10.5 Load Meter Display
  - 10.5.1 Interface
- 10.6 External Machine Coordinate System Compensation
- 10.7 User PLC Version Display
  - 10.7.1 Interface
11. PLC Axis Control
- 11.1 Outline
- 11.2 Specifications
  - 11.2.1 Basic Specifications
  - 11.2.2 Other Restrictions
- 11.3 PLC Interface
  - 11.3.1 DDBS Function Command
  - 11.3.2 Control Information Data
  - 11.3.3 Control Information Data Details
    - 11.3.3.1 Commands
    - 11.3.3.2 Status
    - 11.3.3.3 Alarm No.
    - 11.3.3.4 Control Signals (PLC axis control information data)
    - 11.3.3.5 Axis Designation
    - 11.3.3.6 Operation Mode
    - 11.3.3.7 Feedrate
    - 11.3.3.8 Movement Data
    - 11.3.3.9 Machine Position
    - 11.3.3.10 Remaining Distance
  - 11.3.4 Reference Point Return near Point Detection
  - 11.3.5 Handle Feed Axis Selection
12. Appendix
- 12.1 Example of Faulty Circuit
Revision History

Mitsubishi Electric CNC Meldas 60, 60S Series Users Manual

Pages 288

Year 1998

Language(s)

of 288

Mitsubishi Electric CNC Meldas 60, 60S Series Users Specification

The Mitsubishi Electric CNC Meldas 60 and 60S Series are advanced computer numerical control systems designed for high-precision machining applications. They feature cutting-edge technology aimed at enhancing productivity and efficiency in industrial settings. Both the 60 and 60S Series are equipped with high-speed processors that ensure rapid data processing and machine responsiveness, which are critical for maintaining precision in complex machining tasks. The systems support multi-axis control, accommodating a wide range of machining requirements, from simple to highly intricate designs.

These CNC systems are designed with a user-friendly interface that allows for easy programming and operation, reducing the learning curve for operators. The Meldas 60 and 60S Series include enhanced diagnostic and maintenance functions, providing real-time monitoring and troubleshooting capabilities to minimize downtime and optimize machine performance. Connectivity options are robust, supporting integration with various peripheral devices and factory automation networks, which facilitates seamless communication and coordination within manufacturing processes.

Mitsubishi Electric emphasizes safety and reliability in the design of the Meldas Series, incorporating advanced safety features and rigorous quality control measures. These systems are engineered to deliver consistent performance under demanding conditions, ensuring durability and long-term operation. The Meldas 60 and 60S Series cater to industries requiring high accuracy and efficiency, such as aerospace, automotive, and precision engineering sectors. Overall, the Mitsubishi Electric CNC Meldas 60 and 60S Series represent a blend of innovation and reliability, tailored to meet the evolving needs of modern manufacturing environments.

Mitsubishi Electric CNC Meldas 60, 60S Series Users F.A.Q.

How do I perform a system reset on the Mitsubishi Electric CNC Meldas 60 series?

To perform a system reset on the Meldas 60 series, turn off the main power supply, wait for a few moments, and then turn it back on. Make sure to save all important data before proceeding with a reset.

What should I do if the CNC machine displays an alarm code?

Refer to the Meldas 60 series manual to identify the alarm code and follow the recommended troubleshooting steps. Common steps include checking connections, verifying parameters, and restarting the machine.

How can I back up the parameters of my CNC machine?

To back up parameters, access the control panel, navigate to the parameter settings, and use the data storage function to save parameters onto an external device or a network location.

What is the procedure for updating the software on the Meldas 60 series?

Contact Mitsubishi Electric support for the latest software update and follow their instructions. Typically, this involves downloading the update onto a USB drive and using the machine's interface to complete the installation.

Why is my machine not reaching the programmed speed?

Check the spindle speed settings and ensure that they match the programmed values. Verify that there are no mechanical obstructions and that the lubrication system is functioning properly.

How often should I perform maintenance on the Meldas 60 series?

Regular maintenance should be performed every 6 months, including cleaning, checking for wear and tear, and verifying electrical connections. Refer to the maintenance schedule in the manual for specific tasks.

What should I check if my CNC machine is making unusual noises?

Inspect the machine for loose parts, ensure proper lubrication, and check for worn bearings or components. If the noise persists, consult with a technician for further diagnosis.

How do I calibrate the tool changer on the Meldas 60 series?

To calibrate the tool changer, follow the calibration procedure outlined in the manual, which includes adjusting the alignment and testing the tool change process under manual control to ensure accuracy.

Can I connect the CNC machine to a network for data transfer?

Yes, the Meldas 60 series supports network connections. Configure the network settings through the control panel interface and ensure the correct IP address and network protocols are used for seamless data transfer.

What steps should I follow if the machine is not powering on?

Check the main power supply and ensure that all emergency stops are released. Verify the integrity of power cables and connections. If the issue persists, consult with a certified technician.