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FANUC Alarm SEAL-121 — STOP Dispense signal fault (E…)

Manufacturer wording — STOP Dispense signal fault (E%d)
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC SEAL-121 (“STOP Dispense signal fault (E…)”): The Dispensing signal (from the dispenser to the robot) should be high during dispensing, but it is not. First check: Perform dispenser maintenance procedures to determine why dispensing is not occurring as it should.

Updated 2026-09-17 · LogrobotLM reference

Description

The Dispensing signal (from the dispenser to the robot) should be high during dispensing, but it is not.

Remedy

Perform dispenser maintenance procedures to determine why dispensing is not occurring as it should. Also verify that the dispensing schedule data is correct, and that the dispenser I/O to/from the robot has been mapped correctly.

Related codes

SEAL-119WARN Low pressure (E…)SEAL-120WARN Dispenser not ON (E…)SEAL-122ABORT Sealing task already activeSEAL-123ABORT Job aborted

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 →