FANUC Alarm SRVO-176 — SERVO CJ/Illegal Mode …,…
Manufacturer wording — SERVO CJ/Illegal Mode %d,%d
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC SRVO-176 (“SERVO CJ/Illegal Mode …,…”): The wrong CJ mode was used. First check: Internal motion error.
Updated 2026-09-17 · LogrobotLM reference
Description
The wrong CJ mode was used.
Remedy
Internal motion error. Contact your FANUC Robotics technical representative
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 →