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Siemens SINUMERIK Controller
Servo/Axis · Basic · 10-20 minutes
Siemens 840D 61351 - Channel Block: Tool length or radius is 0
The alarm is triggerd by the following cycles: CYCLE971. For the active tool, the length or radius equal zero. Remedy: Check length and radius of the active tool in the compensation data memory.
61351
Siemens 840D 61351 - Channel Block: Tool length or radius is 0
Channel Block: Tool length or radius is 0
The alarm is triggerd by the following cycles: CYCLE971. For the active tool, the length or radius equal zero. Remedy: Check length and radius of the active tool in the compensation data memory.
Safety
- Refer to Siemens documentation
- Ensure qualified technician performs repairs
Common Causes
- Tool offset length value set to 0 in compensation memory
- Tool radius compensation value set to 0 in compensation memory
- Incorrect tool number called in NC program without proper offset assignment
- Tool offset table corrupted or not loaded after machine startup
- Tool change operation completed without verifying offset data entry
Troubleshooting Steps
- 1Verify the active tool number in the NC program and cross-reference with the tool offset table in the compensation memory
- 2Access the tool offset/compensation data screen and confirm both length (L) and radius (R) values are non-zero for the active tool
- 3If values are 0, manually enter the correct tool dimensions using the machine's offset adjustment function or data input screen
- 4For CYCLE971 operations, ensure the tool offset was properly saved and activated before program execution
- 5Clear the alarm, reload the compensation data if necessary, and restart the NC program
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