Technical articles
Technical references for MITSUBISHI CNC controls, alarms and maintenance.
An alarm number is only a clue. For M800, M80 and the other series covered by the same manual, collect the complete alarm display, operating stage, axis name and equipment nameplates, while observing the limits of alarm help and screen capture.
Read article →Servo alarms S01, S03 and S04 have different reset categories. Read them within the scope of the M800/M80/E80/C80 manual, without mistaking a reset operation for a completed repair.
Read article →Environmental conditions around an M70V control unit must be checked against the actual model. Separate manual limits from site observations and organize evidence of temperature, humidity, condensation, oil mist and maintenance changes.
Read article →Parameter comparison can document data changed during repair. Based on the NC Configurator2 manual, check project and model correspondence, export differences and understand what a comparison cannot establish.
Read article →Opening an old PLC project does not mean it is ready to write to equipment. The GX Works2 common manual defines project-format and compilation prerequisites; retain conversion records and review differences before proceeding.
Read article →Migrating a GX Works2 SFC project requires checks of specific software versions and chart structure. Mitsubishi bulletin FA-A-0192-A identifies affected versions and informs the checks and offline acceptance records described here.
Read article →Organize the original M80 S01 power-supply inrush-circuit alarm evidence, distinguish 006B from 006C and identify the model, operating-stage and repair records needed before inspection.
Read article →Retain the original MDS-D-V2-160160 no-display/Y03 record and photographs, with checks of connection, supply and axis correspondence. Live cable removal is explicitly excluded as a troubleshooting step.
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