Code M01-1005: G114.n command illegal
Issue Description & Safety Warning
The Mitsubishi M800/M80 CNC has triggered a critical G114.n command illegal 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 G114.n has been commanded durin g the execution of G114.n. G51.2 has been commanded when G51.2 spindle-spindle polygon machining mode has been already entered at another part system. Multiple spindle synchronization set command is illegal. Remedy Command G113 to cancel the operation. Turn ON the "spindle synchronization cancel" signal (Y18B8: SPSYC) to cancel the operation. Command G50.2 to cancel the operation. Turn ON the "spindle-spindle polygon cancel" signal (YCD1) to cancel the operation. Correct the program.
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 M01-1005 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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