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FANUC Alarm DX-004STOP Illegal schedule number

FANUC DX-004 (“STOP Illegal schedule number”): Invalid Delta Tool/Frame schedule number. First check: Check all schedule numbers used within the specified program to verify that they are within the allowable range specified for the $DXSCH[] system variable.

Updated 2026-08-29 · LogrobotLM reference

Description

Invalid Delta Tool/Frame schedule number.

Remedy · Remède

Check all schedule numbers used within the specified program to verify that they are within the allowable range specified for the $DXSCH[] system variable.

Frequently asked · Questions fréquentes

What does FANUC alarm DX-004 mean?
FANUC DX-004 (“STOP Illegal schedule number”): Invalid Delta Tool/Frame schedule number.
How do you troubleshoot FANUC alarm DX-004?
Check all schedule numbers used within the specified program to verify that they are within the allowable range specified for the $DXSCH[] system variable.

Related codes / Codes liés

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 →