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FANUC Alarm PALL-172 — Invalid infeed number from PLC %s

FANUC PALL-172 (“Invalid infeed number from PLC %s”): The PLC sent an invalid infeed number. First check: Make sure a valid infeed number was sent by PLC.

Updated 2026-08-29 · LogrobotLM reference

Description

The PLC sent an invalid infeed number. The number must be greater than 0, and less than or equal to the 'number of infeeds' set up.

Remedy · Remède

Make sure a valid infeed number was sent by PLC. Check the PLC communication status.

Frequently asked · Questions fréquentes

What does FANUC alarm PALL-172 mean?
FANUC PALL-172 (“Invalid infeed number from PLC %s”): The PLC sent an invalid infeed number. The number must be greater than 0, and less than or equal to the 'number of infeeds' set up.
How do you troubleshoot FANUC alarm PALL-172?
Make sure a valid infeed number was sent by PLC. Check the PLC communication status.

Related codes / Codes liés

PALL-170Invalid pattern type in data filePALL-171System still in fault statePALL-173Invalid Pallet number from PLC %sPALL-174Setup Application Completed

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 →