FANUC Alarm PNT1-596 — Min. output has flow > setpoint
Manufacturer wording — %sMin. output has flow > setpoint
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC PNT1-596 (“Min. output has flow > setpoint”): With a minimum control output, the flow rate was measured to be higher than the setpoint (requested flow). First check: Calibrating the color will establish a new cracking pressure (minimum control output) for a changed fluid pressure. Likely part: Transducer (Transducer) +1 more.
Updated 2026-09-17 · LogrobotLM reference
Description
With a minimum control output, the flow rate was measured to be higher than the setpoint (requested flow). The fluid pressure might have become too high. The I/P transducer or fluid regulator might be stuck open. There might be a fairly large fluid leak. Note: Accuflow automatically changes to Open Loop when this failure occurs.
Remedy
Calibrating the color will establish a new cracking pressure (minimum control output) for a changed fluid pressure. Check and replace if necessary the fluid regulator and I/P transducer. See the Fluid flow leak alarms for other options.
Part to check / replace
FANUC PNT1-596 points to the hardware below — start here before ordering.
Tap a part for every code that points to it — and verify the exact variant for your controller before ordering.
Related codes
Same hardware involved
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 →