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FANUC Alarm PNT1-723 — Turbine under speed fault

Manufacturer wording — %sTurbine under speed fault
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC PNT1-723 (“Turbine under speed fault”): While the turbine was operating and the gun was on or enabled, the RPM level was below the Under speed limit. First check: N/A

Updated 2026-09-17 · LogrobotLM reference

Description

While the turbine was operating and the gun was on or enabled, the RPM level was below the Under speed limit. Check and replace the I/P transducer if necessary. Check the supply and pilot air pressures, if either one is low, increase it. Possibly decrease the Under speed limit value.

Remedy

N/A

Related codes

PNT1-721Zero turbine speed timeoutPNT1-722Turbine over speedPNT1-724Turbine under speed warningPNT1-725Speed avg. error excessive

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 →