FANUC Alarm PNT1-654 — %sLower output did not lower flow
FANUC PNT1-654 (“%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: Perform the following:
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 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
Perform the following:
Frequently asked · Questions fréquentes
- What does FANUC alarm PNT1-654 mean?
- FANUC PNT1-654 (“%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 caused by insufficient exhaust, no quick exhaust on the…
- How do you troubleshoot FANUC alarm PNT1-654?
- Perform the following:
Related codes / Codes liés
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