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FANUC Alarm DMDR-009 — Large synch errror (G:%d M:%d)

FANUC DMDR-009 (“Large synch errror (G:%d M:%d)”): The servo error inconsistency between a master axis and a slave axis is too large. First check: See that no mechanical problem exists.

Updated 2026-08-29 · LogrobotLM reference

Description

The servo error inconsistency between a master axis and a slave axis is too large. That is, $DUAL_DRIVE.$SYNC_ER has exceeded $DUAL_DRIVE. $SYNC_ER_TOL.

Remedy · Remède

See that no mechanical problem exists. Or, tune synchronous compensation parameters again. Calibration will be lost when this error is posted.

Frequently asked · Questions fréquentes

What does FANUC alarm DMDR-009 mean?
FANUC DMDR-009 (“Large synch errror (G:%d M:%d)”): The servo error inconsistency between a master axis and a slave axis is too large. That is, $DUAL_DRIVE.$SYNC_ER has exceeded $DUAL_DRIVE. $SYNC_ER_TOL.
How do you troubleshoot FANUC alarm DMDR-009?
See that no mechanical problem exists. Or, tune synchronous compensation parameters again. Calibration will be lost when this error is posted.

Related codes / Codes liés

DMDR-007Large command gap2 (G:%d M:%d)DMDR-008Large command gap3 (G:%d M:%d)DMDR-010Invalid dual axis config(G:%d)DMDR-021Selected adjust mode G:%d M:%d

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. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →