292

Locate the line number where alarm 292 occurred and examine the G51.1 (mirror image ON) command syntax.

Verify axis letters are correctly specified (e.g., G51.1 X1 Y1) and that only linear axes are designated, not rotary axes unless specifically enabled.

Check parameter 1006 (mirror image axis designation) to confirm which axes are permitted for mirror imaging on this control.

Parameter changes require appropriate authorization and should be documented.

Correct the G51.1 command to include only valid axes, or remove unauthorized axis designations, then reset alarm and restart program.

Review the program from the beginning up to the alarm point to check for previous G51.1 commands that were not properly cancelled with G50.1.

Verify that G50.1 (mirror image cancel) is programmed as a standalone command without axis designations (correct: G50.1, incorrect: G50.1 X0 Y0).

Ensure proper pairing of G51.1 and G50.1 commands throughout the program, with each mirror activation having a corresponding cancellation before re-activation.

Add missing G50.1 cancel commands or remove redundant G51.1 activation commands, then reset and test the program.

Examine the G51.1 command block at the alarm location and verify that only values of 1 (mirror ON) are used for each axis (e.g., X1 Y1, not X2 or X0.5).

Check that no feedrate (F), spindle speed (S), tool (T), or other incompatible codes are programmed in the same block as the G51.1/G50.1 command.

Verify the mirror image command is on its own program line (block) or only combined with compatible modal codes per the Fanuc programming manual for your specific control model.

Reformat the mirror image command to use only valid syntax with proper axis designation values, reset the alarm, and restart the program.