LogrobotLM

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FANUC Alarm INTP-444 — Invalid item for Fast mode

Manufacturer wording — (%s^4, %d^5) Invalid item for Fast mode
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC INTP-444 (“Invalid item for Fast mode”): There is an operator or data that cannot be used in Fast mode Background Logic. First check: Remove the operator or data, or execute this program in Normal mode Background Logic

Updated 2026-09-17 · LogrobotLM reference

Description

There is an operator or data that cannot be used in Fast mode Background Logic. Fast Mode Background Logic can have only I/O ports and logical operators.

Remedy

Remove the operator or data, or execute this program in Normal mode Background Logic

Related codes

INTP-442Background program is changedINTP-443Invalid item for Mixed LogicINTP-445Indirection in Fast modeINTP-446Too many parentheses

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. How this reference is built →