FANUC Alarm SRVO-057 — SERVO FSSB disconnect (G:%d A:%d)
FANUC SRVO-057 (“SERVO FSSB disconnect (G:%d A:%d)”): The FSSB communication from SLAVE to SRVO is disconnected. First check: 1. Check cable COP10A that connects the servo amplifier to the main CPU board.
Updated 2026-08-29 · LogrobotLM reference
Description
The FSSB communication from SLAVE to SRVO is disconnected.
Remedy · Remède
1. Check cable COP10A that connects the servo amplifier to the main CPU board. 2. Check fuse F3 on the PSU PCB.WARNING: Before you continue to the next step, perform a complete controller backup to save all your programs and settings from memory for this robot. After you complete the next step, restore the saved data to the new main CPU board if memory has been lost. Otherwise, you could injure personnel, damage equipment, or lose
Frequently asked · Questions fréquentes
- What does FANUC alarm SRVO-057 mean?
- FANUC SRVO-057 (“SERVO FSSB disconnect (G:%d A:%d)”): The FSSB communication from SLAVE to SRVO is disconnected.
- How do you troubleshoot FANUC alarm SRVO-057?
- 1. Check cable COP10A that connects the servo amplifier to the main CPU board. 2. Check fuse F3 on the PSU PCB.WARNING: Before you continue to the next step, perform a complete controller backup to save all your programs and settings from memory for this robot. After you complete the next step, restore the saved data…
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 →