3012

G-Code Combination Invalid

Fanuc · Manual Guide Milling and Turning

What does 3012 mean?

This P/S alarm indicates that G codes specified in the program cannot be combined as programmed. Specifically, a figure block has been paired with a machining type block that is not compatible or available for that figure type, leading to an invalid operation sequence.

Repair Steps

  1. 1

    Modify the machining program to specify a correct and compatible combination of machining type block and figure block.

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Verified technical data. Last updated: March 2026
Source: Fanuc Manual Guide Milling and Turning