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FANUC Alarm SYST-009 — WARN Safety Fence open

Warning
Hardware
emergency stop and dual safety chains
Controllers
R-J3iB / R-30iA
FANUC class
WARN
Hardware family
FANUC emergency stop, pendant and dual safety chain alarms

FANUC SYST-009 (“WARN Safety Fence open”): The attempted operation could not be done because the safety fence is open. First check: Close the safety fence, and try the same operation again.

Updated 2026-10-22 · LogrobotLM reference

Description

The attempted operation could not be done because the safety fence is open.

Remedy

Close the safety fence, and try the same operation again.

Field diagnosis

The requested operation is refused because the safety fence is open.

What to check

  • Close the fence and restart the operation.
  • Note: Refusal warning, not to be confused with SRVO-004, which cuts the power.

Related codes

SRVO-004SERVO Fence openSRVO-205SYSTEM Fence open(SVEMG abnormal)SYST-007WARN NETWORK is the master deviceSYST-008WARN Nothing is the master deviceSYST-010WARN Max num task reachedSYST-011WARN Failed to run task

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 →