SRVO-494

SERVO DCS DMA Alarm %x,%x

DMA An error occurred during self-test.

1. Replace the CPU card.
2. Replace the motherboard.

Applicable equipment

Source: Fault JSON · FANUC_R30iB_全部故障码_中英双语.json · SHA-256 3eef897f540467130587726e7a53e338980cbb19f10ad88a4eddbec837fb0f55 · SRVO-494

Brand	FANUC
Updated	2026-10-26

SRVO-494

DMA An error occurred during self-test.

1. Replace the CPU card.
2. Replace the motherboard.

Applicable equipment

Source: Fault JSON · FANUC_R30iB_全部故障码_中英双语.json · SHA-256 3eef897f540467130587726e7a53e338980cbb19f10ad88a4eddbec837fb0f55 · SRVO-494

Brand	FANUC
Updated	2026-10-26