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Siemens SINUMERIK Controller
Servo/Axis · Intermediate · 30-60 minutes
Siemens 840D 61225 - Channel block: Swivel data record unknown
An attempt was made to access a swivel data block which has not been defined. Alarm triggered by following cycles: E_TCARR, F_TCARR.
61225
Siemens 840D 61225 - Channel block: Swivel data record unknown
Channel block: Swivel data record unknown
An attempt was made to access a swivel data block which has not been defined. Alarm triggered by following cycles: E_TCARR, F_TCARR.
Safety
- Refer to Siemens documentation
- Ensure qualified technician performs repairs
Common Causes
- Swivel data record referenced in NC program has not been created or configured in the machine data
- Incorrect swivel data record number specified in the E_TCARR or F_TCARR cycle call
- Swivel data record deleted or corrupted during machine setup or parameter backup/restore
- Missing or incomplete swivel kinematics definition in the control system configuration
Troubleshooting Steps
- 1Verify the swivel data record number called in the E_TCARR or F_TCARR cycle matches an existing record defined in machine data parameters
- 2Access the control's parameter menu and confirm all required swivel data records are created and populated with valid kinematic data
- 3Check the NC program syntax for the cycle call and cross-reference the swivel data record index against the machine configuration documentation
- 4If records are missing, recreate the swivel data configuration using the machine manufacturer's setup files or restore from a known-good backup
- 5Reload the control's machine data and perform a control restart to ensure all parameter changes take effect
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