Code P650-000: Sub sys identification # error
Issue Description & Safety Warning
The Mitsubishi M800/M80 CNC has triggered a critical Sub sys identification # 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 identification No. specified in the address B of G122 or G144 is that of the part system where G122 is given. The identification No. specified in the sub part system control I command (G122) is not set in the parameter #12049 SBS_no. Remedy Change the address B of G122 or G144 to be any identification No. other th an that of the part system where G122 is given. Select the identification No. for th e sub part system control I comman d (G122) from among the available Nos. Specify the identification No. you wish to use for the sub part system control I command (G122) in the pa- rameter #12049 SBS_no. Other G code in sub sys block
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 P650-000 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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