FANUC Alarm PNT2-601 — Fast fluid flow leak detected
Manufacturer wording — %sFast fluid flow leak detected
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC PNT2-601 (“Fast fluid flow leak detected”): The Tolerance Band is too narrow (low), or the regulator is not working properly. First check: Check regulator operation and Adaptive Gain settings in the AccuStat Color Data for that color valve.
Updated 2026-09-17 · LogrobotLM reference
Description
The Tolerance Band is too narrow (low), or the regulator is not working properly. The adaptive gain for that color might be too low, and the flow rate is not adapting fast enough. The potentiometer is not operating properly. The trigger delay might not be set properly if trigger events are too close together.
Remedy
Check regulator operation and Adaptive Gain settings in the AccuStat Color Data for that color valve. Verify the trigger delays are set up properly.
Related codes
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 →