IB-S-399

WARN Board status is Bus Fail

Any one of these alarms occurs together with IB-S-395.

This alarm indicates the current board status.

Applicable equipment

Source: Fault JSON · FANUC_R30iB_全部故障码_中英双语.json · SHA-256 3eef897f540467130587726e7a53e338980cbb19f10ad88a4eddbec837fb0f55 · IB-S-399

Brand	FANUC
Updated	2026-10-26

IB-S-399

Any one of these alarms occurs together with IB-S-395.

This alarm indicates the current board status.

Applicable equipment

Source: Fault JSON · FANUC_R30iB_全部故障码_中英双语.json · SHA-256 3eef897f540467130587726e7a53e338980cbb19f10ad88a4eddbec837fb0f55 · IB-S-399

Brand	FANUC
Updated	2026-10-26