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FANUC Alarm INTP-301 — ABORT (%s^4, %d^5) Stack underflow

FANUC INTP-301 (“ABORT (%s^4, %d^5) Stack underflow”): KAREL program error. First check: A GOTO statement cannot be used to enter or exit a FOR loop.

Updated 2026-08-29 · LogrobotLM reference

Description

KAREL program error. Execution entered into a FOR loop by the GOTO statement.

Remedy · Remède

A GOTO statement cannot be used to enter or exit a FOR loop. Check the label of the GOTO statement.

Frequently asked · Questions fréquentes

What does FANUC alarm INTP-301 mean?
FANUC INTP-301 (“ABORT (%s^4, %d^5) Stack underflow”): KAREL program error. Execution entered into a FOR loop by the GOTO statement.
How do you troubleshoot FANUC alarm INTP-301?
A GOTO statement cannot be used to enter or exit a FOR loop. Check the label of the GOTO statement.

Related codes / Codes liés

INTP-297WARN (%s,%d)DB too small(done)(%dmm)INTP-300ABORT (%s^4, %d^5) Unimplemented P-codeINTP-302ABORT (%s^4, %d^5) Stack overflowINTP-303ABORT (%s^4, %d^5) Specified value exceeds limit

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 →