Okuma Alarm-B 2531 Mirror turning mode
They went a condition along ON/OFF order of mirror turning mode by the condition which is not satisfied.
Or, they went along the order which is prohibited in mirror turning mode.
Code
1->Mirror turning mode ON/OFF order was performed by the condition which is not choosing G140 sides. Or, G140/G141 orders were performed in mirror turning mode.
2->Mirror turning mode ON/OFF order was performed by the condition that W axis controlled mode is not OFF condition (G144). Or, G144/G145 orders were performed in mirror turning mode.
3->Mirror turning mode ON/OFF order was performed by the condition and the mirror image coordinate system that a coordinate system on the side of both Main spindle of L, R is choosing a basic coordinate system together is chosen.