FANUC Alarm SRVO-300 — SERVO Hand broken/HBK disabled
FANUC SRVO-300 (“SERVO Hand broken/HBK disabled”): A safety hand broken is detected when setting of HBK is disabled. First check: Press reset key to clear alarm.
Updated 2026-08-29 · LogrobotLM reference
Description
A safety hand broken is detected when setting of HBK is disabled. The most likely is the HBK signal of a robot connection cable being from 24V to the 0 V level.
Remedy · Remède
Press reset key to clear alarm. Verify whether robot has hand broken equipment or not. If it doesn't have, HBK signal status is changed
Frequently asked · Questions fréquentes
- What does FANUC alarm SRVO-300 mean?
- FANUC SRVO-300 (“SERVO Hand broken/HBK disabled”): A safety hand broken is detected when setting of HBK is disabled. The most likely is the HBK signal of a robot connection cable being from 24V to the 0 V level.
- How do you troubleshoot FANUC alarm SRVO-300?
- Press reset key to clear alarm. Verify whether robot has hand broken equipment or not. If it doesn't have, HBK signal status is changed
Related codes / Codes liés
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. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →