SYST-253

WARN No safety stop input signal

The safety stop input signal must be turned on.

Check the safety stop input signal.

Applicable equipment

Source: Fault JSON · FANUC_R30iB_全部故障码_中英双语.json · SHA-256 3eef897f540467130587726e7a53e338980cbb19f10ad88a4eddbec837fb0f55 · SYST-253

Brand	FANUC
Updated	2026-10-26

SYST-253

The safety stop input signal must be turned on.

Check the safety stop input signal.

Applicable equipment

Source: Fault JSON · FANUC_R30iB_全部故障码_中英双语.json · SHA-256 3eef897f540467130587726e7a53e338980cbb19f10ad88a4eddbec837fb0f55 · SYST-253

Brand	FANUC
Updated	2026-10-26