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FANUC Alarm THSR-001 — PAUSE Illegal instruction sequence

FANUC THSR-001 (“PAUSE Illegal instruction sequence”): Trying to execute a touch sensing instruction out of sequence. First check: Please check the touch sensing instruction sequence, or abort the current program and start again.

Updated 2026-09-17 · LogrobotLM reference

Description

Trying to execute a touch sensing instruction out of sequence. For example, a Search Start instruction follows a Offset start instruction without Offset end in between.

Remedy

Please check the touch sensing instruction sequence, or abort the current program and start again.

Related codes

THSR-002PAUSE Illegal schedule numberTHSR-003PAUSE Illegal work frame number

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 →