What causes Siemens SINUMERIK alarm 4610?

Machine data was changed requiring acknowledgment or power cycle. System configuration change notification. Commissioning or service operation generated this notice. Axis or drive configuration change affecting machine data.

How do I fix Siemens SINUMERIK alarm 4610?

1. Read the complete notice text on the SINUMERIK screen. 2. If a power cycle is indicated, perform a controlled machine power off and restart. 3. If machine data backup is indicated, save the current machine data. 4. Acknowledge the notice and verify the system is operating correctly after the change. 5. Consult the machine commissioning engineer if the notice is unexpected.

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Siemens SINUMERIK Controller

System · Intermediate · 30-120 minutes

Alarm 4610

Siemens 840D 4610 - Invalid handwheel module for handwheel

Alarm 4610 fires when the machine data parameter $MN_HANDWHEEL_MODULE is configured with an invalid value for the specified handwheel on an 840D control system. The 840D architecture treats the control itself as a single module (module index 1), and any handwheel interface must be explicitly assigned to this module; any other module assignment is incompatible with 840D systems.

Siemens SINUMERIKSystemIntermediate30-120 minutes

4610

Siemens 840D 4610 - Invalid handwheel module for handwheel

Invalid handwheel module for handwheel

Root Cause Summary

Alarm 4610 fires when the machine data parameter $MN_HANDWHEEL_MODULE is configured with an invalid value for the specified handwheel on an 840D control system. The 840D architecture treats the control itself as a single module (module index 1), and any handwheel interface must be explicitly assigned to this module; any other module assignment is incompatible with 840D systems.

Safety

Refer to Siemens documentation
Ensure qualified technician performs repairs

Causes and Fixes

1
Access Siemens HMI or Operate panel; navigate to Diagnostics > Machine Data or use SINUMERIK Operate embedded MD editor.
2
Locate $MN_HANDWHEEL_MODULE[handwheel_%1] where %1 is the handwheel index from the alarm message. Verify the current value is displayed.
Note the exact handwheel index number from the alarm for correct parameter identification.
3
Change $MN_HANDWHEEL_MODULE[handwheel_%1] to value 1. For 840D systems, this is the only valid assignment.
4
Save machine data, perform NCK RESET (CTRL+ALT+DEL or via PLC interface), and verify alarm 4610 clears on system restart.
Improper reset may require power-cycle of the control cabinet.

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