LogrobotLM

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FANUC Alarm SRVO-208 — SERVO Extended axis brake abnormal

FANUC SRVO-208 (“SERVO Extended axis brake abnormal”): The FET current for the brake of an extended axis (brake number 2 or greater) exceeded the specification. First check: Check the brake for zero or abnormally low impedance.

Updated 2026-09-17 · LogrobotLM reference

Description

The FET current for the brake of an extended axis (brake number 2 or greater) exceeded the specification.

Remedy

Check the brake for zero or abnormally low impedance. Then check the brake cable. Then check 200VAC. Then check servo amplifier or emergency stop control PCB if brake ports are used. Refer to the maintenance manual for details.

Related codes

SRVO-206SYSTEM Deadman switch (SVEMG abnormal)SRVO-207SERVO TP switch abnormal or Door openSRVO-209SERVO Robot-2 SVEMG abnormalSRVO-210SERVO EX_robot SVEMG abnormal

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 →