FANUC Alarm DMDR-031 — Fail to get memory area
FANUC DMDR-031 (“Fail to get memory area”): There is insufficient memory (DRAM) to allocate memory for the Dual-Drive option. First check: Check the amount of memory(DRAM) being used by the system. Likely part: CPU card (CPU card).
Updated 2026-09-17 · LogrobotLM reference
Description
There is insufficient memory (DRAM) to allocate memory for the Dual-Drive option.
Remedy
Check the amount of memory(DRAM) being used by the system. Replace the CPU card to the one that has a larger memory size if necessary.
Part to check / replace
FANUC DMDR-031 points to the hardware below — start here before ordering.
Tap a part for every code that points to it — and verify the exact variant for your controller before ordering.
Related codes
Same hardware involved
Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. How this reference is built →