Prgramacion Cnc

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BNP-B3744+9

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BIELDB 500 SERIES
MAINTENANCE MANUAL (HARDWARE)

MITSUBISHI CNC

ADVANCED AND EVER ADVANCING

MITSUBISHI ELECTRIC

Preface
(1) The contents of this manual include the items required to maintenance the entire MELDAS 500 Series CNC unit, so the system configuration may differ according to the target model and specified configuration. Use this manualwith the Instruction Manual, instruction Manual issued by the machine maker, and other Instruction Manuals. (2) This Manual is targeted for the general user and machine maker engineers. If there are any unclear points, please contact Mitsubishi. (3) An effort has been made to match the contents of this manual with the NC unit. We ask for your understanding if there are any differences in thecontents. (4) Related material MELDAS 500 Series Connection Manual

Contents

1. Outline ..................... i ...................... 1 .l System Configuration ................................. 1 .l .l System configuration ............................... 1.1.2 Internal system diagram ............................ 1.2 Control Unit Configuration ............................. 1.2.1 Control unitconfiguration ........................... 1.2.2 Control section PCB configuration ..................... 1.3 Operation Board Configuration .......................... 1.4 Table of Configuration Units ............................ 2. Daily Maintenance and Periodic Inspection and Maintenance ... 2.1 Maintenance Instruments .............................. 2.2 Maintenance Items................................... 2.3 Cleaning the Operation Board Escutcheon and CRT .......... 2.4 Maintenance and Handling of the Floppy Disk Unit ........... 2.4.1 Maintenance of the floppy disk unit .................... 2.4.2 Handling of the floppy disk .......................... 2.4.3. Other precautions for handling ....................... 2.4.4 Troubleshooting .................................. 2.5 BatteryReplacement ................................. 3. Troubie Diagnosis and Measures ........................ 3.1 Confirmation of State of Trouble Occurrence ............... 3.2 Examples of Troubles and Troubleshooting ................ 3.2.1 Examples of troubles ............................... 3.2.2 Examples of troubleshooting ......................... 3.3 LED List of Each PCB (unit)............................ 3.4 Presumed Causes for Alarms ........................... 3.5 Procedure for Inspection of Each Trouble .................. 3.6 Replacement of Various Units in Control Unit . . . . . . . . . . . . . . . 3.6.1 Replacement of power unit .......................... 3.6.2 Replacement of cooling fan .......................... 3.6.3 Replacement of the QX card ......................... 3.6.4Replacement of memory cassette card ................. 3.6.5 Precautions during replacement ...................... 10 10 10 11 12 12 .12 13 14 15 16 16 17 17 18 23 25 37 39 40 40 40 42 43

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4. Installation Adjustment Procedure ....................... 4.1 Working Conditions .................................. 4.2 Input Power ........................................ 4.3 External Connections................................. 4.3.1 Connection of input power .......................... 4.3.2 Connection of motor ............................... 4.3.3 External connections ............................... 4.4 Installation Check List ................................ 4.5 Turning on the Power ................................ 4.5.1 Power on, ready on, emergency stop, ready off flow chart ... 4.6 SettingCapacity (hardware setting) . . . . . . . . . . . . . . . . . . . . . . 5. Explanation of Hardware ............................... 5.1 Outline ........................................... 5.2 Flow of Signals ..................................... 5.3 Control Unit Functions and Handling ..................... 5.3.1 Power supply .................................... 5.3.2 PC6 functions and handling...