Siemens SINUMERIK codes
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Siemens SINUMERIK Controller

Servo/Axis · Intermediate · 20-45 minutes

Alarm 12553

Siemens 840D 12553 - Channel block name option/function is not active

The option (if $MN_NC_LANGUAGE_CONFIGURATION = 1) or the NC function (if $MN_NC_LANGUAGE_CONFIGURATION = 3) related to this language command is not active. But the name of the language command is known. Each programming of this language command is rejected with this alarm.

Siemens SINUMERIKServo/AxisIntermediate20-45 minutes

12553

Siemens 840D 12553 - Channel block name option/function is not active

Channel block name option/function is not active

The option (if $MN_NC_LANGUAGE_CONFIGURATION = 1) or the NC function (if $MN_NC_LANGUAGE_CONFIGURATION = 3) related to this language command is not active. But the name of the language command is known. Each programming of this language command is rejected with this alarm.

Safety

  • Refer to Siemens documentation
  • Ensure qualified technician performs repairs

Common Causes

  • Required NC function or option is not licensed or activated in machine parameters
  • Language configuration setting ($MN_NC_LANGUAGE_CONFIGURATION) mismatch between expected and actual value
  • NC software version does not support the specific language command being used
  • Machine parameter configuration incomplete or corrupted after recent software update

Troubleshooting Steps

  1. 1Verify the current value of $MN_NC_LANGUAGE_CONFIGURATION parameter (should be 1 for options or 3 for NC functions) and confirm it matches your programming intent
  2. 2Check machine parameter list for active options/functions and confirm the required feature is licensed and enabled in the system
  3. 3Review NC program syntax to ensure the command name is spelled correctly and matches the active language set defined in parameters
  4. 4Consult Siemens documentation or machine builder documentation to verify the command is supported in your current NC software version
  5. 5If parameter was recently modified, reload machine data or perform a controlled restart of the CNC control to ensure all parameters are properly initialized

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Always verify with your machine manual or a certified technician before performing service procedures.