LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free →

FANUC Alarm PNT2-596 — 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 PNT2-596 (“Min. output has flow > setpoint”): The position and proximity switch are not functioning properly. First check: Check the position and the proximity switch.

Updated 2026-09-17 · LogrobotLM reference

Description

The position and proximity switch are not functioning properly. The docking station has not retracted fast enough. The Docking Cylinder Timeout is set too low. Check for obstructions, misalignments and for faulty switch.

Remedy

Check the position and the proximity switch. Repair the pneumatic or electric circuit if necessary. Adjust the pneumatic controls for the retract/extend. Increase the Docking Cylinder Timeout Value. Verify that the digital inputs and outputs have the proper state. By default: DIN[130, DSR] = ON; DIN[129, DSE]= OFF; DOUT[147, RDS] = ON; DOUT[146, EDS] = OFF. If the dock has retracted, and the I/O has been verified, then reset and continue the robot.

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 →