FANUC Alarm PNT1-327 — SHELL failed to run SUBSHELL

Manufacturer wording — %sSHELL failed to run SUBSHELL
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC PNT1-327 (“SHELL failed to run SUBSHELL”): The subtask failed to run. First check: Cold start the controller.

Updated 2026-09-17 · LogrobotLM reference

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 →