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FANUC Alarm PNT2-654 — %sLower output did not lower flow

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 caused 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 might help.

Related codes / Codes liés

PNT2-644%sCal. table adapted in tolerancePNT2-645%sDyn. yield > %% tolerance bandPNT2-655%sTime out during a cal. testPNT2-656%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.