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 PNT2-591 — %sCal. time out at max. flow

FANUC PNT2-591 (“%sCal. time out at max. flow”): Accuflow timed out trying to reach the maximum flow rate. First check: Possibly decrease the Gain modifier used for the color. Likely part: Fluid regulator (Fluid regulator).

Updated 2026-08-29 · LogrobotLM reference

Description

Accuflow timed out trying to reach the maximum flow rate. Possible causes are: a high gain, a sticking I/P transducer, a bad fluid regulator or frequent fluid pressure changes.

Remedy · Remède

Possibly decrease the Gain modifier used for the color. Retry the calibration. Check and change the transducer if necessary, replace the fluid regulator or service the surge suppression system on the fluid supply pump. The calibration timeout parameter can be increased.

Part to check / replace · Pièce à contrôler / remplacer

FANUC PNT2-591 points to the hardware below — start here before ordering. · PNT2-591 met en cause l'organe ci-dessous : commencez par là.

Tap a part for every code that points to it — and verify the exact variant for your controller before ordering. · Touchez une pièce pour tous les codes qui la citent ; vérifiez la variante exacte avant commande.

Frequently asked · Questions fréquentes

What does FANUC alarm PNT2-591 mean?
FANUC PNT2-591 (“%sCal. time out at max. flow”): Accuflow timed out trying to reach the maximum flow rate. Possible causes are: a high gain, a sticking I/P transducer, a bad fluid regulator or frequent fluid pressure changes.
How do you troubleshoot FANUC alarm PNT2-591?
Possibly decrease the Gain modifier used for the color. Retry the calibration. Check and change the transducer if necessary, replace the fluid regulator or service the surge suppression system on the fluid supply pump. The calibration timeout parameter can be increased.
Which part is involved in FANUC PNT2-591?
PNT2-591 points to Fluid regulator (Fluid regulator). Confirm the real cause against the robot backup before replacing a part.

Related codes / Codes liés

PNT2-589%sCal. low flow rate resetPNT2-590%sCal. max. flow rate resetPNT2-592%sCal. time out at low flowPNT2-593%sZero fluid flow rate detected

Same hardware involved / Même matériel en cause

PAIN-273Fluid regulatorPAIN-278Fluid regulatorPAIN-279Fluid regulatorPAIN-283Fluid regulator

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 →