LogrobotLM

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FANUC Alarm PAIN-541 — WARN %sLower output did not lower flow

FANUC PAIN-541 (“WARN %sLower output did not lower flow”): As the AccuAir calibration steps down through the 10 points in the calibration table, it expects a lower flow for each decrease in the command flow value. First check: Retry the calibration.

Updated 2026-08-29 · LogrobotLM reference

Description

As the AccuAir calibration steps down through the 10 points in the calibration table, it expects a lower flow for each decrease in the command flow value. In this case the flow did not decrease. This can be d by insufficient exhaust, no quick exhaust on the pilot air line, too large of a hysteresis in control equipment, or the system response is too slow for the current setting of the Calibration step delay parameter.

Remedy · Remède

Retry the calibration. Check that the pilot air line to the booster has sufficient exhaust capability. Increase the Calibration step delay parameter (by about 100%). Reducing the Leveling tries parameter may help.

Frequently asked · Questions fréquentes

What does FANUC alarm PAIN-541 mean?
FANUC PAIN-541 (“WARN %sLower output did not lower flow”): As the AccuAir calibration steps down through the 10 points in the calibration table, it expects a lower flow for each decrease in the command flow value. In this case the flow did not decrease. This can be d by insufficient exhaust, no quick exhaust on the…
How do you troubleshoot FANUC alarm PAIN-541?
Retry the calibration. Check that the pilot air line to the booster has sufficient exhaust capability. Increase the Calibration step delay parameter (by about 100%). Reducing the Leveling tries parameter may help.

Related codes / Codes liés

PAIN-539WARN %sCal. time out at low flowPAIN-540WARN %s0 air flow rate detectedPAIN-542WARN %sTime out during a cal. testPAIN-543WARN %sMin. output has flow > setpoint

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 →