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 PNT2-902 — Wrong valve state in FAST FILL event…

Manufacturer wording — Wrong valve state in FAST FILL event%s
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC PNT2-902 (“Wrong valve state in FAST FILL event…”): The wrong valve state was programmed in the color change cycle. First check: Ensure that the pCI valve is enabled in the step before the Fast Fill event to correct the problem.

Updated 2026-09-17 · LogrobotLM reference

Description

The wrong valve state was programmed in the color change cycle. The valve interlocking requirements have not been satified for the Fast Fill event in the color change cycle.

Remedy

Ensure that the pCI valve is enabled in the step before the Fast Fill event to correct the problem.

Related codes

PNT2-900Low Trigger TorquePNT2-901Wrong valve state in EMPTY CAN event…PNT2-903Wrong valve state in CAN FULL event…PNT2-904Wrong valve state in PRESET motion…

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 →