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Siemens SINUMERIK Controller
Program/G-code · Intermediate · 30-120 minutes
Siemens 840D 104117 - PA: Error on writing JOG feed unit
Alarm 104117 occurs when the system attempts to write or modify the JOG feed unit setting (MM or INCH) and encounters a parameter conflict or access violation. This typically happens due to incorrect machine data settings, protection level restrictions, or conflicts between NC program commands and the current system configuration.
104117
Siemens 840D 104117 - PA: Error on writing JOG feed unit
PA: Error on writing JOG feed unit
Siemens SINUMERIK alarm 104117: PA: Error on writing JOG feed unit. This alarm indicates an error condition in the NC program or control configuration that must be resolved before the operation can continue.
Root Cause Summary
Alarm 104117 occurs when the system attempts to write or modify the JOG feed unit setting (MM or INCH) and encounters a parameter conflict or access violation. This typically happens due to incorrect machine data settings, protection level restrictions, or conflicts between NC program commands and the current system configuration.
Safety
- Refer to Siemens documentation
- Ensure qualified technician performs repairs
Causes and Fixes
- 1
Check current protection level by accessing HMI > Commissioning > Machine Data and verify access rights.
- 2
Verify MD 9220 $MC_PASSWORD_LEVEL_x settings to ensure appropriate access level for JOG parameter modifications.
- 3
Log in with the correct Siemens protection level (Level 2-4) required for modifying JOG-related machine data.
Changing protection levels affects system security. Document your password and level changes.
- 4
Retry the parameter write operation and perform a control reset (POWER ON) if successful.
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