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FANUC Alarm FRSY-020 — WARN RAM disk is full

FANUC FRSY-020 (“WARN RAM disk is full”): The RAM disk does not have enough available memory to perform the specified command. First check: Delete all unnecessary files and then purge the device.

Updated 2026-08-29 · LogrobotLM reference

Description

The RAM disk does not have enough available memory to perform the specified command. Note that copying a file to the FROM disk requires that the RAM disk be mounted with enough memory available to temporarily contain the file.

Remedy · Remède

Delete all unnecessary files and then purge the device. For more information on purging, refer to the PURGE_DEV Built-in in the FANUC Robotics SYSTEM RJ-2 Controller KAREL Reference Manual. If the device is still full, then backup the files to an off-line device and reformat the device after setting $FILE_MAXSEC to a larger number.

Frequently asked · Questions fréquentes

What does FANUC alarm FRSY-020 mean?
FANUC FRSY-020 (“WARN RAM disk is full”): The RAM disk does not have enough available memory to perform the specified command. Note that copying a file to the FROM disk requires that the RAM disk be mounted with enough memory available to temporarily contain the file.
How do you troubleshoot FANUC alarm FRSY-020?
Delete all unnecessary files and then purge the device. For more information on purging, refer to the PURGE_DEV Built-in in the FANUC Robotics SYSTEM RJ-2 Controller KAREL Reference Manual. If the device is still full, then backup the files to an off-line device and reformat the device after setting $FILE_MAXSEC to a…

Related codes / Codes liés

FRSY-018WARN File is already openedFRSY-019WARN Command is not supportedFRSY-021WARN End of fileFRSY-022WARN File ID exceeded maximum

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 →