Code 26214: [Channel %1: ] Block %2: The maximum permissible value of fine offset in chain element %3 was exceeded
Issue Description & Safety Warning
The Siemens SINUMERIK 840D CNC has triggered a critical [Channel %1: ] Block %2: The maximum permissible value of fine offset in chain element %3 was exceeded 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 = Fine offset value Definitions: The value in $NK_OFF_FINE or in a component of $NK_OFF_DIR is higher than the limit value allowed by $NK_LIMIT_FINE. For chain elements that describe an axis, the alarm refers to $NK_OFF_FINE, otherwise to $NK_OFF_DIR. Reaction: Correction block is reorganized. Interface signals are set. Alarm display. Remedy: Reduce the value in the specified component, or increase the permissi ble limit value in $NK_LIMIT_FINE. Program Continuation: Clear alarm with NC ST ART or RESET key and continue the program.
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 26214 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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