Code S53-219: Safety Function Warnings
Issue Description & Safety Warning
The Mitsubishi M800/M80 CNC has triggered a critical Safety Function Warnings 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
The milling mode was turned ON during nose R co mpensation or constant surface speed control. A T command was issued during the milling mode. The mode was switched from milling to cutting during tool compensation. Cylindrical interpolation or polar coordinate inte rpolation was commanded durin g the constant surface speed control mode (G96). The command unacceptable in the cylindrical interpolation was issued. A T command was issued during the cylindrical inte rpolation or polar coordinate interpolation mode. A movement command was issued when the plane was not selected just before or after the G07.1 com- mand. A plane selection command was issued during the polar coordinate interpolation mode. Cylindrical interpolation or polar coordinate inte rpolation was commanded during tool radius compensa- tion. The G16 plane in which the radius val ue of a cylinder is "0" was specified. A cylindrical interpolation or polar coordinate interpolation command was issued during coordinate rotation by program. Remedy Correct the program. Issue G40 or G97 before issuing G12.1. Issue a T command before issuing G12.1. Issue G40 before issuing G13.1. Specify the radius value of a cylinder other than "0", or spec ify the X axis's current value other than "0" before issuin g G12.1/G16. Milling error
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 S53-219 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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