Siemens SINUMERIK codes
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Siemens SINUMERIK Controller

Program/G-code · Intermediate · 30-120 minutes

Alarm 101622

Siemens 840D 101622 - Value impermissible

Alarm 101622 'Value impermissible' occurs when a programmed parameter value violates the permissible range defined by the system or machine data. This typically happens with NC programming syntax errors, out-of-range axis positions, feed rates, spindle speeds, or tool parameters that exceed configured limits. The alarm is triggered during program compilation or execution when the control detects an invalid numerical value.

Siemens SINUMERIKProgram/G-codeIntermediate30-120 minutes

101622

Siemens 840D 101622 - Value impermissible

Value impermissible

Siemens SINUMERIK operator message 101622: Value impermissible. This is an informational message from the SINUMERIK control indicating a system status or operation result that may require operator action.

Root Cause Summary

Alarm 101622 'Value impermissible' occurs when a programmed parameter value violates the permissible range defined by the system or machine data. This typically happens with NC programming syntax errors, out-of-range axis positions, feed rates, spindle speeds, or tool parameters that exceed configured limits. The alarm is triggered during program compilation or execution when the control detects an invalid numerical value.

Safety

  • Refer to Siemens documentation
  • Ensure qualified technician performs repairs

Causes and Fixes

  1. 1

    Check the alarm detail display to identify the specific NC block number and parameter causing the error.

  2. 2

    Verify the programmed axis values against software limit switches in MD36100 (Software_LIMIT_PLUS) and MD36110 (SOFT_LIMIT_MINUS) for each axis.

  3. 3

    Check feedrate F value against maximum permitted feed MD32000 (MAX_AX_VELO) and spindle speed S against MD35100 (SPINDLE_MAX_SPEED_LIMS).

  4. 4

    Correct the NC program value to fall within permissible ranges and reset the alarm using the NC Start button or RESET key.

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