Fanuc 7115 Alarm 🆓

The 7115 alarm indicates a mismatch between the commanded direction for Reference Point Return (Grid Approach) and the actual physical movement direction of the axis.

In simpler terms: The CNC commanded the axis to move in the direction of the reference point (e.g., + direction), but the position feedback or limit switch configuration suggests the axis would have to move in the opposite direction to reach the reference point. The CNC detects this as an impossible or dangerous condition. fanuc 7115 alarm

Sudden power loss causes SRAM corruption. A line-interactive UPS for the control section (not the spindle drive) prevents write errors during brownouts. The 7115 alarm indicates a mismatch between the

Warning: This will erase all parameters, programs, and the PMC ladder if not stored in Flash ROM. Sudden power loss causes SRAM corruption

If the hardware checks out, the ladder is likely corrupted.

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