FANUC Alarm SRVO-222 — SERVO Lack of Amp (Amp:%d)
FANUC SRVO-222 (“SERVO Lack of Amp (Amp:%d)”): The FSSB optical cable is not connected to an SVM amplifier. First check: 1. Verify that the optical cable is securely connected to the SVM amplifier.
Updated 2026-08-29 · LogrobotLM reference
Description
The FSSB optical cable is not connected to an SVM amplifier.
Remedy · Remède
1. Verify that the optical cable is securely connected to the SVM amplifier. 2. Replace the optical cable. 3. Check whether power is properly supplied to the SVM. 4. Verify that no problems exist with each SVM input voltage. 5. Replace the SVM.
Frequently asked · Questions fréquentes
- What does FANUC alarm SRVO-222 mean?
- FANUC SRVO-222 (“SERVO Lack of Amp (Amp:%d)”): The FSSB optical cable is not connected to an SVM amplifier.
- How do you troubleshoot FANUC alarm SRVO-222?
- 1. Verify that the optical cable is securely connected to the SVM amplifier. 2. Replace the optical cable. 3. Check whether power is properly supplied to the SVM. 4. Verify that no problems exist with each SVM input voltage. 5. Replace the SVM.
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 →