Code V05-0008: SS2 deceleration error
Issue Description & Safety Warning
The Mitsubishi M800/M80 CNC has triggered a critical SS2 deceleration 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 The command/FB speed has been exceeding the SOS stop speed (set by parameter) for a period of SS2 de- celeration observation time (set by parameter) since the start of SS2. The screen displays the name of axis of this error. Remedy Deactivate SS2, cancel this error using the safety rese t signal, and then move the axis to a safe position in a manual mode. If the SS2 deceleration observation time (set by parameter) is shorte r than the assumption, change the parameter setting.
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 V05-0008 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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