FANUC Alarm PAIN-462 — WARN Pump 1 IN high pressure warning
FANUC PAIN-462 (“WARN Pump 1 IN high pressure warning”): Pump #1 inlet pressure has been above the high warning limit for a user configurable period of time. First check: Make sure the high pressure warning limit is appropriate.
Updated 2026-09-17 · LogrobotLM reference
Description
Pump #1 inlet pressure has been above the high warning limit for a user configurable period of time. This condition is usually caused by one or more of the following: 1. The high pressure warn limit is set too low. 2. The high pressure sensitivity is set too short. 3. The supply pressure is set too high. 4. The resin inlet transducer has failed. 5. The inlet regulator has failed.
Remedy
Make sure the high pressure warning limit is appropriate. Make sure the high pressure sensitivity is appropriate. Make sure the supply pressure is appropriate. Check the resin inlet transducer as follows: Through the Analog I/O menu verify the transducer is spanning from near 200 cnts (0 psi) to 600+ cnts (50-80 psi) during a color change cycle. Check the resin inlet regulator as follows: Through the Analog I/O menu verify the command 200-1000 cnts (0-100 psi) spanning by verifying the output psi at the transducer test port.
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 →