Code 17813: [Channel %1: ] Axis %2 fixed-point approach in JOG and override motion active
Issue Description & Safety Warning
The Siemens SINUMERIK 840D CNC has triggered a critical [Channel %1: ] Axis %2 fixed-point approach in JOG and override motion active 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 Definitions: 'Fixed-point approach in J OG' is active for the axis, but another offset motion - for example a synchronization offset $AA_OFF - has been interpolated simultaneously. The position of the selected fixed-point is not r eached if offset values are changed during the traversing motion. The target point then becomes "fixed-poi nt position + change in offset value". The end point will be reached if the traversing moti on is restarted after the offset value has been changed. (For example: incremental traversing in whic h the traversing motion stops intermittently). Reason: Restarting the motion takes the current offset value into account. Reaction: Interface signals are set. Alarm display. Remedy: Trigger JOG motion again. 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 17813 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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