Code 4341: [Channel %1: ] Block %2 no data set available for transformation no. %3
Issue Description & Safety Warning
The Siemens SINUMERIK 840D CNC has triggered a critical [Channel %1: ] Block %2 no data set available for transformation no. %3 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 = Transformation number Definitions: Only a limited number of machine data sets (usually 2) is available for each related group of transformations (e.g. orientation transformations, Transmit, Trac yl, etc.). This alarm is output if an attempt is made to set more transformations from a group. Example: Two orientation transformations are allo wed. The machine data contains e.g.: TRAFO_TYPE_1 = 16; 1st orientation transformation TRAFO_TYPE_2 = 33; 2nd orientation transformation TRAFO_TYPE_3 = 256; 1st transmit transformation TRAFO_TYPE_4 = 20; 3rd orientation trans formation ==> This entry triggers alarm Reaction: Correction block is reorganized. Interface signals are set. Alarm display. NC Stop on alarm at block end. Remedy: Enter valid machine data. Program Continuation: Clear alarm with the RESET key. Restart part 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 4341 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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