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FANUC Alarm PNT2-535 — IPC Interlock check failed!

Manufacturer wording — %sIPC Interlock check failed!
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC PNT2-535 (“IPC Interlock check failed!”): The IPC interlock check failed, the (pTRIG and pPE) or pDUMP valves must be opened to run the pump. First check: If this alarm is posted during a Color Change cycle, check the CC cycle to verify the above valves are programmed on.

Updated 2026-09-17 · LogrobotLM reference

Description

The IPC interlock check failed, the (pTRIG and pPE) or pDUMP valves must be opened to run the pump.

Remedy

If this alarm is posted during a Color Change cycle, check the CC cycle to verify the above valves are programmed on. If this alarm occurs during Manual Functions, make sure the above valves are on before trying to request the pump to run

Related codes

PNT2-533CC Event Timeout!PNT2-534CC Cycle does not end @ HOME!PNT2-554Cal. table adapted out tolerancePNT2-555Cal. table adapted in tolerance

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 →