LogrobotLM

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FANUC Alarm PNT2-621 — %sCal. time out at low flow

FANUC PNT2-621 (“%sCal. time out at low flow”): The AccuAir controls timed out trying to reach the minimum flow rate. First check: Retry the calibration.

Updated 2026-08-29 · LogrobotLM reference

Description

The AccuAir controls timed out trying to reach the minimum flow rate. This flow rate is the Table point no. 2 parameter. Possible causes are: a high gain, a sticking I/P transducer, too large of a yield for the current tolerance band or the system response is too slow for the current setting of the Calibration time out parameter.

Remedy · Remède

Retry the calibration. Possibly decrease the Gain modifier parameter. Possibly increase the Percent tolerance band parameter. Check and change the transducer if necessary. Possibly increase the Calibration time out parameter (by about 10 seconds). Possibly increase the Table point no. 2 parameter (by about 100%).

Frequently asked · Questions fréquentes

What does FANUC alarm PNT2-621 mean?
FANUC PNT2-621 (“%sCal. time out at low flow”): The AccuAir controls timed out trying to reach the minimum flow rate. This flow rate is the Table point no. 2 parameter. Possible causes are: a high gain, a sticking I/P transducer, too large of a yield for the current tolerance band or the system response is too slow…
How do you troubleshoot FANUC alarm PNT2-621?
Retry the calibration. Possibly decrease the Gain modifier parameter. Possibly increase the Percent tolerance band parameter. Check and change the transducer if necessary. Possibly increase the Calibration time out parameter (by about 10 seconds). Possibly increase the Table point no. 2 parameter (by about 100%).

Related codes / Codes liés

PNT2-619%sCal. max. flow rate resetPNT2-620%sCal. time out at max. flowPNT2-622%s0 air flow rate detectedPNT2-623%sLower output did not lower flow

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 →