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FANUC Alarm PNT1-645 — Dyn. yield > % tolerance band

Manufacturer wording — %sDyn. yield > % tolerance band
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC PNT1-645 (“Dyn. yield > % tolerance band”): As a particular flow rate set point is being output, the yield (slpm/cnt) for that flow rate was approximately larger than the percent tolerance. First check: Perform the following:

Updated 2026-09-17 · LogrobotLM reference

Description

As a particular flow rate set point is being output, the yield (slpm/cnt) for that flow rate was approximately larger than the percent tolerance. It is not likely that the set point will be reached within the specified tolerances. This might be caused by the use of a flow rate setpoint that is above the value that the air system can provide.

Remedy

Perform the following:

Related codes

PNT1-643Cal. table adapted out,output upPNT1-644Cal. table adapted in tolerancePNT1-646Flow rate avg. error excessivePNT1-647Calibration successful

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