LogrobotLM

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FANUC Alarm GUID-059 — SERVO Current queue lost. L:…

Manufacturer wording — SERVO Current queue lost. L:%d^3
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC GUID-059 (“SERVO Current queue lost. L:…”): Lost queue entry was in use. First check: Set LEN, OUT_BOUNDS, and DETECT_DIST to reasonable values.

Updated 2026-09-17 · LogrobotLM reference

Description

Lost queue entry was in use.

Remedy

Set LEN, OUT_BOUNDS, and DETECT_DIST to reasonable values. Relocate part detect switch closer to work area.

Related codes

GUID-057WARN Can't init tracking. L:…GUID-058WARN Queue overflow. L:…GUID-060WARN LT File R/W while moving.GUID-100WARN Unknown error

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 →