Siemens SINUMERIK codes
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Siemens SINUMERIK Controller

Servo/Axis · Intermediate · 20-40 minutes

Alarm 61365

Siemens 840D 61365 - Channel block: Check circular feed

The alarm is triggerd by the following cycles: CYCLE979. Parameter _RF is <= 0. Remedy: Check parameter _RF.

Siemens SINUMERIKServo/AxisIntermediate20-40 minutes

61365

Siemens 840D 61365 - Channel block: Check circular feed

Channel block: Check circular feed

The alarm is triggerd by the following cycles: CYCLE979. Parameter _RF is <= 0. Remedy: Check parameter _RF.

Safety

  • Refer to Siemens documentation
  • Ensure qualified technician performs repairs

Common Causes

  • Parameter _RF configured with zero or negative value in CYCLE979
  • Incorrect circular feed rate calculation resulting in non-positive value
  • Parameter _RF not initialized before cycle execution
  • Workpiece geometry or toolpath setup causing invalid feed computation

Troubleshooting Steps

  1. 1Verify parameter _RF value in active part program and confirm it is set to a positive number greater than zero
  2. 2Review CYCLE979 call syntax and parameter assignments to ensure _RF is properly defined before cycle execution
  3. 3Check workpiece dimensions and circular interpolation settings that feed the _RF calculation
  4. 4Inspect NC code for any conditional logic that may set _RF to zero or negative during cycle preparation
  5. 5Test cycle execution with manually entered positive _RF value to isolate programming vs. system configuration issues

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