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FANUC Alarm TPIF-161 — Cannot change position ID

FANUC TPIF-161 (“Cannot change position ID”): The position ID cannot be changed by setting the system variable. First check: Set the system variable $POS_EDIT.$LOCK_POSNUM to FALSE to change the position ID.

Updated 2026-09-17 · LogrobotLM reference

Description

The position ID cannot be changed by setting the system variable.

Remedy

Set the system variable $POS_EDIT.$LOCK_POSNUM to FALSE to change the position ID.

Related codes

TPIF-159iPendant Controls too newTPIF-160iPendant Controls too oldTPIF-162Can't enter P-SPS in PAUSEDTPIF-163Can't exit P-SPS in PAUSED

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 →