Code 10883: [Channel %1: ] Block %2 chamfer or fillet has to be reduced
Issue Description & Safety Warning
The Siemens SINUMERIK 840D CNC has triggered a critical [Channel %1: ] Block %2 chamfer or fillet has to be reduced 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 Definitions: This alarm is output, if at least one of the relevant blocks when inserting chamfe rs or radii is so short, that the contour element to be inserted must be r educed against its originally programmed value. The alarm occurs only if bit 4 is set in the MD 11411 $MN_ENABLE_ALARM_MASK. Otherwise, the chamfer or radius is adapted without an alarm being output. Reaction: Local alarm reaction. Interface signals are set. Alarm display. NC Stop on alarm at block end. Remedy: Modify NC program of continue program without modi fications after CANCEL and Start or with Start alone. Program Continuation: Clear alarm with the Delete key or NC START. Diagnostics Manual (DAsl), 03/2009
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 10883 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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