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Siemens SINUMERIK Controller
Spindle · Intermediate · 30-120 minutes
Siemens 840D 22062 - Channel axis reference point approach: zero marker search
Alarm 22062 indicates the spindle/axis failed to achieve the configured zero marker search velocity during reference point approach on a SINUMERIK 840D system. This occurs when the actual spindle speed cannot match the programmed zero marker search velocity parameter, preventing reliable detection of the machine zero reference mark.
22062
Siemens 840D 22062 - Channel axis reference point approach: zero marker search
Channel axis reference point approach: zero marker search
Siemens SINUMERIK 840D alarm 22062: Channel axis reference point approach: zero marker search. This alarm indicates a spindle-related fault or programming error on the specified channel. The affected spindle function cannot be executed.
Root Cause Summary
Alarm 22062 indicates the spindle/axis failed to achieve the configured zero marker search velocity during reference point approach on a SINUMERIK 840D system. This occurs when the actual spindle speed cannot match the programmed zero marker search velocity parameter, preventing reliable detection of the machine zero reference mark.
Safety
- Refer to Siemens documentation
- Ensure qualified technician performs repairs
Causes and Fixes
- 1
Access SINUMERIK 840D HMI menu: Diagnostics > Parameters > Spindle Data. Verify MD30100 (maximum spindle speed) exceeds the configured MD34100 (zero marker search velocity) by at least 10-15%.
Do not exceed motor nameplate rating when modifying MD30100.
- 2
Check drive fault signals in NCK diagnostics menu or PLC input image (typically I-memory addresses for spindle drive status). Verify servo drive is not in current limiting or thermal protection mode.
- 3
Review MD34100 parameter value and reduce zero marker search velocity incrementally (typically start at 50% of spindle rated speed). Re-execute reference point approach cycle.
Setting MD34100 too low may cause zero marker detection failure due to encoder resolution sensitivity.
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