Siemens SINUMERIK codes
Siemens SINUMERIKServo/AxisBasic15-30 minutes

61117

Siemens 840D 61117 - Channel Block: Active tool radius <= 0

Channel Block: Active tool radius <= 0

The radius of the acive tool is negative or zero. Alarm triggered by following cycles: CYCLE71, POCKET3, POCKET4.

Safety

  • Refer to Siemens documentation
  • Ensure qualified technician performs repairs

Common Causes

  • Tool offset table entry contains zero or negative radius value for active tool
  • Tool was not properly loaded or tool number references incorrect offset data
  • Manual tool offset input error during setup or tool change
  • Corrupted tool offset data in memory after power loss or system crash
  • Tool radius compensation mode enabled with invalid tool geometry data

Troubleshooting Steps

  1. 1Verify active tool number matches intended tool and check tool offset table for radius value - correct any zero or negative entries to positive values matching actual tool diameter
  2. 2Review tool offset screen (typically accessible via HMI) and confirm all active tool entries contain correct positive radius measurements
  3. 3Manually re-enter tool offset data for the active tool if values appear corrupted, cross-referencing physical tool measurements
  4. 4Clear any active tool radius compensation and re-initialize tool before restarting the affected cycle
  5. 5If using CYCLE71, POCKET3, or POCKET4, verify that tool selection and offset assignment completed successfully prior to cycle start

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