What causes Siemens SINUMERIK alarm 10224?

Attempting to activate program test mode while machine is in automatic run mode instead of reset state. Channel state mismatch between commanded operation and current machine mode. Conflicting commands issued to the channel during active cycle execution. Operator interface sending incompatible commands for the current channel state. Software version mismatch or corrupted channel state registers.

How do I fix Siemens SINUMERIK alarm 10224?

1. Verify machine is in reset state before attempting program test activation; press RESET button on control panel 2. Check current channel state on HMI display and confirm it matches the intended operation mode 3. Stop any running program cycle completely and allow channel to return to idle state before issuing new commands 4. Review command sequence in DNC or external control software to ensure operations are not being issued out of sequence 5. Power cycle the control system completely; if alarm persists, contact Siemens support to verify software version compatibility

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Siemens SINUMERIK Controller

Servo/Axis · Basic · 5-15 minutes

Alarm 10224

Siemens 840D 10224 - [up to SW 3.x only] Channel: command denied

This alarm occurs when the SINUMERIK 840D control (SW 3.x or earlier) receives a command that is not permissible in the current operating state. Most commonly triggered when attempting to activate program test functions while the channel is in automatic mode instead of reset state, or when mode-specific commands are issued in incompatible operating conditions.

Siemens SINUMERIKServo/AxisBasic5-15 minutes

10224

Siemens 840D 10224 - [up to SW 3.x only] Channel: command denied

[up to SW 3.x only] Channel: command denied

Root Cause Summary

This alarm occurs when the SINUMERIK 840D control (SW 3.x or earlier) receives a command that is not permissible in the current operating state. Most commonly triggered when attempting to activate program test functions while the channel is in automatic mode instead of reset state, or when mode-specific commands are issued in incompatible operating conditions.

Safety

Refer to Siemens documentation
Ensure qualified technician performs repairs

Causes and Fixes

1
Press the RESET button on the machine control panel to bring the channel to RESET state.
2
Verify the channel status displays RESET in the HMI status bar before attempting to activate program test functions.
3
Activate the desired program test function (dry run, single block, optional stop) from the HMI or machine control panel.
4
If the alarm persists, check for active subprograms or interrupt routines that may be preventing proper RESET state. Cancel all active programs and retry.
Ensure no workpiece collision risk exists before resetting active programs.

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