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FANUC Alarm DMDR-008 — Large command gap3 (G:… M:…)

Manufacturer wording — Large command gap3 (G:%d M:%d)
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC DMDR-008 (“Large command gap3 (G:… M:…)”): The motion command inconsistency between a master axis and a slave axis is too large. First check: See that no mechanical problem exists.

Updated 2026-09-17 · LogrobotLM reference

Description

The motion command inconsistency between a master axis and a slave axis is too large. That is,

Remedy

See that no mechanical problem exists. Or, tune up $DUAL_ DRIVE.$CMD_GAPTOL3 properly again.

Related codes

DMDR-006Large command gap1 (G:… M:…)DMDR-007Large command gap2 (G:… M:…)DMDR-009Large synch errror (G:… M:…)DMDR-010Invalid dual axis config

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 →