Code V05-0001: SLS speed error
Issue Description & Safety Warning
The Mitsubishi M800/M80 CNC has triggered a critical SLS speed error 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 During SLS observation, the command/FB speed has exceeded the safely-limited speed(*) and has not dropped below the speed limit within the SL S detection delay time (set by parameter). The screen displays the name of axis of this error. (*)Safely-limited speed = SLS speed tolerance x SLS speed override / 100 Remedy This error can be cancelled by the safety reset signal while motor speed is under SLS limit. If the SLS speed tolerance or SLS speed override (set by parameter) is lower than the assumption, change the parameter setting and turn OFF and ON the power. If the SLS detection delay time (set by parameter) is shorter than the assump tion, change the parameter setting. Check the safety ladder to make sure that SLS speed tolerance and SLS speed override are changed in a timely manner. servation Alarm (V) SLS deceleration error 0002 Axis name
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 V05-0001 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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