Code 22295: Channel %1 Spindle %2 DBB30 function not possible (cause: error code %3)
Issue Description & Safety Warning
The Siemens SINUMERIK 840D CNC has triggered a critical Channel %1 Spindle %2 DBB30 function not possible (cause: error code %3) 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
Parameters: %1 = Channel number %2 = Axis name, spindle number %3 = Error code Definitions: The function request by PLC via DBB30 interface c ould not be executed. The cause is specified by the error code. Error codes: - Error code 1: internal use - Error code 2: internal use - Error code 3: internal use - Error code 4: internal use - Error code 5: Switchover to command axis not possible - Error code 6: Switchover to PLC axis not possible - Error code 20: internal use - Error code 21: internal use - Error code 22: internal use - Error code 23: MD 30132 IS_VIRTUAL_AX has been set - Error code 50: internal use - Error code 51: internal use - Error code 70: internal use Reaction: NC Start disable in this channel. Interface signals are set. Alarm display. Remedy: Remedy conflict. Program Continuation: Clear alarm with the Delete key or NC START.
Source: SINUMERIK 840D sl / 840Di sl / SINAMICS S120 Diagnostics Manual (DAsl, 03/2009)
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Siemens SINUMERIK 840D CNC Alarms
Siemens controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code 22295 on the SINUMERIK 840D CNC identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Siemens's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.
Complete Alarm List: 4014 Siemens SINUMERIK 840D CNC codes.
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