Code M01-0231: 3D manual feed coord sys err
Issue Description & Safety Warning
The Mitsubishi M800/M80 CNC has triggered a critical 3D manual feed coord sys err alarm. Immediate attention from a qualified operator or maintenance technician is required to prevent secondary damage to the equipment or spoiled parts during the manufacturing cycle. Always ensure standard safety and LOTO procedures are followed before accessing electrical cabinets.
Official Troubleshooting Steps
Details More than one of the three bits for selecting hypothetical coordinate system was turned ON. Virtual coordinate system was selected while the 3-dimensional manual feed was invalidated by the pa- rameter setting. The manual tool length measurement or work piece position measurement is being attempted. Remedy Check the sequence program. Enable 3-dimensional tool radius compensation (set the parameter "#7912 NO_MANUAL" to "0"). Finish the manual tool length measurement or workpiece position measurement.
Source: Mitsubishi M800/M80/E80 Series Alarm/Parameter Manual (IB-1501279)
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Mitsubishi M800/M80 CNC Alarms
Mitsubishi controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code M01-0231 on the M800/M80 CNC identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Mitsubishi's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.
Complete Alarm List: 722 Mitsubishi M800/M80 CNC codes.
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