What this tool does: This diagnostic tool helps CNC machine operators, maintenance technicians, and industrial engineers quickly understand and fix errors displayed on Siemens SINUMERIK 840D and 810D NCU/CCU modules.
How to use: Locate the hexadecimal error code (0-9, A-F) displayed on your NCU or CCU 7-segment display. Enter it above to get instant diagnostic information, troubleshooting steps, and replacement part numbers.
Supported systems: SINUMERIK 840D, 840D sl (NCU modules) and SINUMERIK 810D (CCU modules). All systems use the same diagnostic codes as documented in Siemens diagnostic manual 6FC5297.
Data derived from Official SINUMERIK Diagnostics Manual (6FC5297). Check Error Codes in Official Manual
Not affiliated with Siemens AG. Independent diagnostic aid.