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Siemens SINUMERIK Controller
Parameter · Intermediate · 30-45 minutes
Siemens 840D 61423 - Channel block: Parameter _TNUM not agreed or not created
The alarm can be triggered by the following measuring cycles: CYCLE996 Remedy: Causes of error: 1. Parameter CYCLE996 _TNUM incorrect or equals zero 2. No swivel data record created -> MD18088 = 0
61423
Siemens 840D 61423 - Channel block: Parameter _TNUM not agreed or not created
Channel block: Parameter _TNUM not agreed or not created
The alarm can be triggered by the following measuring cycles: CYCLE996 Remedy: Causes of error: 1. Parameter CYCLE996 _TNUM incorrect or equals zero 2. No swivel data record created -> MD18088 = 0
Safety
- Refer to Siemens documentation
- Ensure qualified technician performs repairs
Common Causes
- CYCLE996 parameter _TNUM is set to zero or has an incorrect value
- No swivel data record exists in machine data (MD18088 = 0)
- Swivel data record was deleted or not properly initialized during machine setup
- Parameter _TNUM references a non-existent or invalid swivel record
Troubleshooting Steps
- 1Verify CYCLE996 parameter _TNUM is assigned a valid non-zero value corresponding to an existing swivel data record
- 2Check machine data MD18088 to confirm swivel data records have been created and initialized
- 3Review swivel data configuration in machine parameters to ensure the referenced record exists and contains valid geometry data
- 4If swivel data is missing, create or restore the swivel data record and set MD18088 to the appropriate record number
- 5Clear the alarm and re-run CYCLE996 to confirm _TNUM parameter agreement with existing swivel data
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