Code 10634: [Channel %1: ] Axis %2, tool radius compensation is inactive for type %3 working area limitation, reason: The tool is not oriented parallel to the axis.
Issue Description & Safety Warning
The Siemens SINUMERIK 840D CNC has triggered a critical [Channel %1: ] Axis %2, tool radius compensation is inactive for type %3 working area limitation, reason: The tool is not oriented parallel to the axis. 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, spindle %3 = 0: BCS, 1: WCS / SZS Definitions: The tool radius compensation of the working area limi tation of the stated axis is not taken into account. Reason: The tool is not oriented parallel to the ax is (e.g. because toolcarrier or transformation is active). The alarm is reported in JOG mode. Reaction: Alarm display. Remedy: The tool radius compensation for working area limitations in JOG m ode can only be taken into account if the tool is parallel to the axis. Active transformation and toolcarrier must be switched off for this function. 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 10634 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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