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FANUC Alarm SEAL-311 — VOL_OK ON before DispComp

FANUC SEAL-311 (“VOL_OK ON before DispComp”): The VolumeOK dispenser signal is ON before the DispenseComplete communication starts. First check: Check the dispenser controller, and make sure that the dispenser is performing the I/O handshaking correctly.

Updated 2026-09-17 · LogrobotLM reference

Description

The VolumeOK dispenser signal is ON before the DispenseComplete communication starts.

Remedy

Check the dispenser controller, and make sure that the dispenser is performing the I/O handshaking correctly.

Related codes

SEAL-309IN_PROCESS ON before JobSEAL-310IN_PROCESS OFF before DispCompSEAL-312Err while Flo Meas. Bypassed (E…)SEAL-313VOL_OK ON before sending style ID

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 →