Siemens SINUMERIK codes
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Siemens SINUMERIK Controller

Servo/Axis · Advanced · 45-90 minutes

Alarm 61340

Siemens 840D 61340 - Channel Block: Incorrect alarm number

Alarm can be triggered by following measuring cycles: all measuring cycles. Remedy: Internal error in measuring cycles.

Siemens SINUMERIKServo/AxisAdvanced45-90 minutes

61340

Siemens 840D 61340 - Channel Block: Incorrect alarm number

Channel Block: Incorrect alarm number

Alarm can be triggered by following measuring cycles: all measuring cycles. Remedy: Internal error in measuring cycles.

Safety

  • Refer to Siemens documentation
  • Ensure qualified technician performs repairs

Common Causes

  • Corrupted or invalid alarm number reference in the measuring cycle subroutine
  • Memory corruption in the CNC control system affecting alarm data structures
  • Incompatible or outdated measuring cycle software version
  • Incorrect parameterization in the measuring cycle configuration files
  • Hardware communication error between control module and measuring cycle processor

Troubleshooting Steps

  1. 1Document the exact channel and block number from the alarm display, then review the corresponding measuring cycle source code for invalid alarm number declarations
  2. 2Perform a soft reset of the CNC control and clear any stored diagnostic data; if the alarm persists, perform a full system power cycle
  3. 3Verify that the measuring cycle software version matches the 840D/828D firmware version; consult Siemens release notes for known incompatibilities
  4. 4Backup and restore the measuring cycle parameter files from a known good configuration or Siemens factory defaults
  5. 5If the alarm recurs after software verification, contact Siemens technical support to perform a system diagnostics check and potential control firmware update

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