Code S53-252: 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 function cannot be executed under the axis configuration of the part system. The rotary axis is in the spindle mode of the spindle position control. An unavailable G code was given when "Select specific ations of rotation direction parameter" is enabled (#1450/bit3: 1), and the left-hand screw direction is selected by the rotation direction parameter (#7923, #7933, #7943, #7953: 1). Remedy Correct the program. Check and correct the rotary axis configuration paramete rs so that the function can be executed in the axis configuration. No spec: Tool tip control
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 S53-252 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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