Code 22035: [Channel %1: ] Block %2 following axis/spindle %3 unable to determine the offset value (reason %4).
Issue Description & Safety Warning
The Siemens SINUMERIK 840D CNC has triggered a critical [Channel %1: ] Block %2 following axis/spindle %3 unable to determine the offset value (reason %4). 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 = Block number, label %3 = Following axis/spindle number %4 = Reason Definitions: The determination of the override value ($AA_CO UP_CORR[Sn]) intended by the NC/PLC signal DB31,... DBX31.6 (Correct synchronism) cannot be executed. The override value cannot be calculated properly. The reasons for this may be: - Reason 1: The following axis is not configured as a spindle. - Reason 2: The coupling has mo re than one active leading axis. - Reason 3: The leading axis is not configured as a spindle. - Reason 4: The coupling factor is neither 1 nor -1 (the quotient from CPLNUM and CPLDEN). - Reason 5: CPLSETVAL = "cmdvel". - Reason 6: An independent motion component of the fo llowing spindle is active (VDI interface signal DB31.., DBX98.4 = 1). - Reason 7: There is no following spi ndle synchronism on the setpoint side. - Reason 8: The synchronism on the setpoint side has decreased again. Reaction: Alarm display. Remedy: The following remedies are available for the indicated reasons: - Reasons 1 to 5: The coupling has to be reconfigured/reprogrammed. - Reasons 6 and 7: Wait until VDI interface si gnals DB31.., DBX99.4 'Synchronization running' = 0 and DB31.., DBX98.4 'Overlaid movement' = 0 bef ore setting VDI interface signal DB31..,DBX31.6 'Correct synchronism'. - Reason 8: Wait until the following axle/spindle c an follow the leading values before setting VDI interface signal DB31.., DBX31.6 'Correct synchronism'. 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 22035 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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