Code 22015: [Channel %1: ] Block %2 following spindle %3 No dynamic response for supplementary motion
Issue Description & Safety Warning
The Siemens SINUMERIK 840D CNC has triggered a critical [Channel %1: ] Block %2 following spindle %3 No dynamic response for supplementary motion 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 = Number of following spindle Definitions: The difference motion of the slave spindle cannot be executed due to a lack of available velocity. The coupling consumes the entire avail able dynamic response. The slave sp indle is already rotating at maximum speed. In the part program a deadlock might occur. The alarm can be suppressed with MD11410 $MN_SUPPRESS_ALARM_MASK bit26 = 1. Reaction: Alarm display. Remedy: Reduce the speed of the master spindle 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 22015 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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