Siemens alarm 26105: Drive of axis %1 not found
SINUMERIK axis/spindle alarm · Siemens 840D/810D powerline
What it means
During initialization the drive configured for this axis could not be found on the drive bus - for example a PROFIBUS slave or DriveCliQ device configured in the NC is absent from the actual topology. The axis cannot be enabled until configuration and hardware match.
Likely causes
- drive switched off, failed or not booted
- bus address/topology changed without updating SDB/configuration
- drive bus or DriveCliQ cable interrupted
- logical drive number (MD 30110/30130) pointing to a non-existent unit
Replacement parts
We supply the following units for this alarm — tested, warranty-backed:
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6SN1145/6SN1123 SIMODRIVE 611D modules
drive · Common cause
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6SL3120 motor module (SINAMICS S120)
drive · Common cause
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6FX5008 drive bus cable
cable · Check if others ruled out
Need the part urgently?
Send us alarm 26105 with your machine details — typical RFQ turnaround is 24–48h.