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Siemens SINUMERIK Controller
Program/G-code · Intermediate · 30-120 minutes
Siemens 840D 104135 - PA: Error on activating the user frame
Alarm 104135 occurs when the CNC control attempts to activate a user-defined coordinate frame (FRAME) that contains invalid parameters, references a non-existent frame number, or conflicts with current machine configuration. This typically happens due to incorrect frame programming syntax, attempting to activate an undefined frame register, or frame values that exceed permissible axis limits.
Siemens 840D 104135 - PA: Error on activating the user frame
PA: Error on activating the user frame
Siemens SINUMERIK alarm 104135: PA: Error on activating the user frame. 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 104135 occurs when the CNC control attempts to activate a user-defined coordinate frame (FRAME) that contains invalid parameters, references a non-existent frame number, or conflicts with current machine configuration. This typically happens due to incorrect frame programming syntax, attempting to activate an undefined frame register, or frame values that exceed permissible axis limits.
Safety
Causes and Fixes
Review the NC program line causing the alarm and identify the frame activation command (e.g., G54, G55, or FRAME=...).
Check HMI under Settings > Work Offset > Frames to verify the referenced frame number exists and contains valid data.
Verify the frame index is within the configured range by checking MD18601 $MN_MM_NUM_BASE_ZERO_OFFSET and MD18600 $MN_MM_NUM_GLOBAL_USER_FRAMES.
If frame is undefined, either define it with valid offset values or modify the NC program to reference an existing frame.
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