Code 61430: [Channel %1: ] Block %2: Kinematic vectors not computed -> Error code: %4
Issue Description & Safety Warning
The Siemens SINUMERIK 840D CNC has triggered a critical [Channel %1: ] Block %2: Kinematic vectors not computed -> Error code: %4 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 channel number Definitions: The alarm can be triggered by the fo llowing measuring cycles: CYCLE996 Remedy: Causes of error: 1. Error code = A -> Plausibility of the input points PM1, PM2, PM3 not fulfilled, resulting side lengths must not be equal to zero (Notice: even in the case of side le ngths not equal to zero, there is a risk of not being able to form a triangle, check => check PM1...3.) 2. Error code = B -> Enclosed angle at PM1 between the spread vectors PM1PM2 and PM1PM3 is equal to zero 0. Starting points do not form a triangle. 3. Error code = C -> Enclosed angle at PM2 between the spread vectors PM2PM1 and PM2PM3 is equal to 0. Starting points do not form a triangle. 4. Error code = D -> Enclosed angle at PM3 between the spread vectors PM3PM1 and PM3PM2 is equal to 0. Starting points do not form a triangle. 5. Error code = E -> Normalizing inter polation point: Invalid axis name defined for computation 6. Error code = F -> Normalizing inte rpolation point: Invalid plane defined for computation
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 61430 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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