FANUC Alarm SRVO-046 — SERVO OVC alarm (Group:%d Axis:%d)
FANUC SRVO-046 (“SERVO OVC alarm (Group:%d Axis:%d)”): This alarm is issued to protect the motor when there is a danger of thermal destruction when the root-mean-square current value, calculated internally by the servo system , exceeds the maximum permissible value. First check: 1. Check the operating conditions of the robot. Likely part: Servo amplifier (Servo amplifier).
Updated 2026-08-29 · LogrobotLM reference
Description
This alarm is issued to protect the motor when there is a danger of thermal destruction when the root-mean-square current value, calculated internally by the servo system , exceeds the maximum permissible value.
Remedy · Remède
1. Check the operating conditions of the robot. If the robot's ratings, such as the rated duty cycle and load, are exceeded, modify the use of the robot such that the rated values are not exceeded. 2. Check each interphase voltage of the three-phase voltage (200 VAC) applied to the servo amplifier connector CRR38A, which is 3-phase, and connector CRR39, which is singlephase. If the applied voltage is found to be 170 VAC or less, check the input power supply voltage. 3. Replace the servo amplifier. 4. If this does not clear the alarm, verify that all connectors are securely connected. 5. Replace the motor.
Part to check / replace · Pièce à contrôler / remplacer
FANUC SRVO-046 points to the hardware below — start here before ordering. · SRVO-046 met en cause l'organe ci-dessous : commencez par là.
Tap a part for every code that points to it — and verify the exact variant for your controller before ordering. · Touchez une pièce pour tous les codes qui la citent ; vérifiez la variante exacte avant commande.
Frequently asked · Questions fréquentes
- What does FANUC alarm SRVO-046 mean?
- FANUC SRVO-046 (“SERVO OVC alarm (Group:%d Axis:%d)”): This alarm is issued to protect the motor when there is a danger of thermal destruction when the root-mean-square current value, calculated internally by the servo system , exceeds the maximum permissible value.
- How do you troubleshoot FANUC alarm SRVO-046?
- 1. Check the operating conditions of the robot. If the robot's ratings, such as the rated duty cycle and load, are exceeded, modify the use of the robot such that the rated values are not exceeded. 2. Check each interphase voltage of the three-phase voltage (200 VAC) applied to the servo amplifier connector CRR38A,…
- Which part is involved in FANUC SRVO-046?
- SRVO-046 points to Servo amplifier (Servo amplifier). Confirm the real cause against the robot backup before replacing a part.
Related codes / Codes liés
Same hardware involved / Même matériel en cause
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 →