FANUC Alarm PNT1-577 — CH1:Dyn. yield > tolerance band
Manufacturer wording — CH1:Dyn. yield > tolerance band (%s)
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC PNT1-577 (“CH1:Dyn. yield > tolerance band”): As a particular flow rate set point is being output, the yield ((cc/min)/cnt) for that flow rate was larger than the tolerance band for it. First check: Decrease the yield.
Updated 2026-09-17 · LogrobotLM reference
Description
As a particular flow rate set point is being output, the yield ((cc/min)/cnt) for that flow rate was larger than the tolerance band for it. It is not likely that the set point will be reached. This might be due to the restricters in the gun being too large.
Remedy
Decrease the yield. Use smaller restrictors in the gun if the high end flow rate can still obtained. Otherwise, accept a larger tolerance band. If the value given in the alarm is equal to the Minimum tolerance band, set the minimum tolerance band equal to the yield for that color. Otherwise, increase the Percent tolerance band.
Related codes
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. How this reference is built →