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FANUC Alarm PALT-020 — ABORT Could not open .DT file for read

FANUC PALT-020 (“ABORT Could not open .DT file for read”): An error occurred while opening a .DT file First check: Cold start the controller and retry .

Updated 2026-08-29 · LogrobotLM reference

Description

An error occurred while opening a .DT file

Remedy · Remède

Cold start the controller and retry .

Frequently asked · Questions fréquentes

What does FANUC alarm PALT-020 mean?
FANUC PALT-020 (“ABORT Could not open .DT file for read”): An error occurred while opening a .DT file
How do you troubleshoot FANUC alarm PALT-020?
Cold start the controller and retry .

Related codes / Codes liés

PALT-018PAUSE Could not load .VR filePALT-019PAUSE Could not create unit load filePALT-021WARN IO_STATUS error occurredPALT-022WARN Could not save .VR file %s

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 →