LogrobotLM

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 → · Le diagnostic IA qui lit la sauvegarde de votre robot, sans rien téléverser.

FANUC Alarm PNT2-593 — %sZero fluid flow rate detected

FANUC PNT2-593 (“%sZero fluid flow rate detected”): All of the conditions were set for fluid to be flowing and a zero flow rate was measured. First check: If fluid can be seen coming from the applicator, check the following: flow meter, flow meter pickup, Accuflow interface and the 32 point input module.

Updated 2026-08-29 · LogrobotLM reference

Description

All of the conditions were set for fluid to be flowing and a zero flow rate was measured. This might be due to no fluid pressure or pilot air pressure. With a very low flow rate the gain might be too high. One of the following items might be broken: Color Valve, Color select board, gun trigger, flow meter, flow meter pickup, Accuflow interface board, or the 32 point input module. Note, Accuflow automatically changes to Open Loop when this failure occurs.

Remedy · Remède

If fluid can be seen coming from the applicator, check the following: flow meter, flow meter pickup, Accuflow interface and the 32 point input module. Otherwise, check the other items listed above. If it occurs with very low flow rates, decrease the Gain modifier.

Frequently asked · Questions fréquentes

What does FANUC alarm PNT2-593 mean?
FANUC PNT2-593 (“%sZero fluid flow rate detected”): All of the conditions were set for fluid to be flowing and a zero flow rate was measured. This might be due to no fluid pressure or pilot air pressure. With a very low flow rate the gain might be too high. One of the following items might be broken: Color Valve,…
How do you troubleshoot FANUC alarm PNT2-593?
If fluid can be seen coming from the applicator, check the following: flow meter, flow meter pickup, Accuflow interface and the 32 point input module. Otherwise, check the other items listed above. If it occurs with very low flow rates, decrease the Gain modifier.

Related codes / Codes liés

PNT2-591%sCal. time out at max. flowPNT2-592%sCal. time out at low flowPNT2-594%sLower output did not lower flowPNT2-595%sTime out during a cal. test

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. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →