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Siemens SINUMERIK Controller
Spindle · Intermediate · 30-120 minutes
Siemens 840D 16773 - Channel axis is the following axis. The axis/spindle disables of
Alarm 16773 occurs when a following axis in a coupling configuration detects inconsistent axis/spindle disable states between master and following axes. This state mismatch violates the synchronization requirements of the coupled axis system and indicates a control logic conflict in the NCK coupling parameters or axis enable/disable sequencing.
16773
Siemens 840D 16773 - Channel axis is the following axis. The axis/spindle disables of
Channel axis is the following axis. The axis/spindle disables of
Siemens SINUMERIK 840D alarm 16773: Channel axis is the following axis. The axis/spindle disables of. This alarm indicates a program or channel-level error on the SINUMERIK control. The part program or machine function cannot be executed as commanded.
Root Cause Summary
Alarm 16773 occurs when a following axis in a coupling configuration detects inconsistent axis/spindle disable states between master and following axes. This state mismatch violates the synchronization requirements of the coupled axis system and indicates a control logic conflict in the NCK coupling parameters or axis enable/disable sequencing.
Safety
- Refer to Siemens documentation
- Ensure qualified technician performs repairs
Causes and Fixes
- 1
Access Diagnostics > Parameters > Machine Data (MD) via HMI or SINUMERIK Operate. Navigate to MD 32000 (AXIS_ENABLE_MODE) for the following axis and all master axes in the coupling.
Do not modify parameters while axes are in motion or coupled.
- 2
Verify MD 37100 (COUPLING_TYPE) and MD 37110 (COUPLING_MASTER_AXIS) are correctly configured for the coupling structure. Cross-reference actual master axis names with parameter values.
- 3
Check MD 11400 (SUPPRESS_ALARM_MASK_1) Bit settings for each axis in the coupling. Ensure suppress settings are uniform across master axes to prevent state divergence.
- 4
If configuration is correct, cycle power to NCK and reset coupling via PLC interface. Monitor axis disable/enable sequence in Diagnostics > Axis > Status for synchronized state transitions.
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