FANUC alarms 5523 and 5524: how does RESET differ from option certification?
FANUC 5523 indicates that option certification is pending; 5524 indicates that the waiting period has expired. Clearing an alarm with RESET does not complete certification. This article explains the time limit, certification after file restoration and the information to prepare, using specified manufacturer manual editions.
Contents
When FANUC displays PS5523 or PS5524, check the option certification status. Whether an alarm can be temporarily reset and whether certification is complete are separate questions. Before taking action, record the complete alarm, system model and software version, then review any recent board replacement, system restoration or option-file operations.
What do 5523 and 5524 mean?
5523 indicates that option certification is pending. Within the period specified by the cited manual, RESET can clear the alarm, but permanent resolution requires certification. The manual requires contacting FANUC service within 30 days after the alarm occurs.
5524 indicates that the certification waiting period has expired. This alarm occurs if certification has not been completed by the deadline. RESET can no longer clear it; contact FANUC service to arrange certification. Repeated resets, power cycling or reloading files are not evidence that certification has been completed.
This is based on the 30i/31i/32i-MODEL B Maintenance Manual B-64485EN/01, supplement B-64485EN/01-03, p. 5/5, supplementing the alarm table on p. 663 (public mirror of the manufacturer’s manual). The table specifies 30 days after the alarm occurs. Do not reinterpret this as “720 accumulated power-on hours” or assume that switching off the power pauses the period.
Why does certification become pending?
Restoring the option information file is one trigger explicitly identified in the manufacturer’s manual. In the cited edition, the CNC enters the option certification waiting state when power is switched on again after restoration. Even when the backup belongs to the same machine, restoring the file is not equivalent to restoring certification.
The 0i-D / 0i Mate-D manual revision B-64305EN/03-01, pp. 2–3, applicable to B-64305EN/03 (public mirror of the manufacturer’s manual) explains that certification is required after restoring or modifying option information. The alarm number alone does not prove that a file was deleted, nor does it establish that the main board is faulty.
A suggested sequence for handling the alarm
- Save the alarm screen and the time it first appeared. Record the machine model, CNC model, software series and version.
- Review recent work: which boards were replaced, which files were restored, which machine the backup came from, and whether anything was deleted or overwritten.
- Preserve existing backups and file lists, and stop trial-and-error writes. If an additional backup is needed, first confirm the applicable method.
- Contact FANUC service to check the certification conditions and required information, then follow the procedure for the specific system.
- After certification, verify system status and the relevant functions as required by the machine manufacturer. Do not rely solely on the alarm temporarily disappearing.
This article explains the certification alarms in the cited manuals. It does not extend their menus, file-import methods or procedures to every series. For other models, use the actual alarm wording and the matching manual edition. An official contact is Beijing FANUC after-sales service.
Related reading
CNCOPSET import and status messages · Back to the OPTION section