LogrobotLM

LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free →

FANUC Alarm TPIF-166 — FWD/BWD in left window only

FANUC TPIF-166 (“FWD/BWD in left window only”): When the focus is in the right hand window of the teach pendant, you cannot execute the program. First check: Press DISP to change the focus to the left hand window.

Updated 2026-09-17 · LogrobotLM reference

Description

When the focus is in the right hand window of the teach pendant, you cannot execute the program.

Remedy

Press DISP to change the focus to the left hand window. Use DISPLAY menu item EDIT <--> EDIT to swap the right hand program with the left hand program.

Related codes

TPIF-164This program has no motion groupTPIF-165Can't resume in P-SPSTPIF-167Program already in background editTPIF-168Cannot connect iPendant

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 →