LogrobotLM

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FANUC Alarm SRVO-134 — SERVO DCLVAL(PSM) alarm (G:%d A:%d)

FANUC SRVO-134 (“SERVO DCLVAL(PSM) alarm (G:%d A:%d)”): The back-up charge circuit for the amplifier has trouble. First check: Check the cables and connections between the amplifier (CN1) and the MCC. Likely part: E-stop unit (E-stop unit).

Updated 2026-08-29 · LogrobotLM reference

Description

The back-up charge circuit for the amplifier has trouble.

Remedy · Remède

Check the cables and connections between the amplifier (CN1) and the MCC. Check the fuse (F1,F3) in the transformer. If using a B-cabinet, replace the EMG control printed circuit board.

Part to check / replace · Pièce à contrôler / remplacer

FANUC SRVO-134 points to the hardware below — start here before ordering. · SRVO-134 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-134 mean?
FANUC SRVO-134 (“SERVO DCLVAL(PSM) alarm (G:%d A:%d)”): The back-up charge circuit for the amplifier has trouble.
How do you troubleshoot FANUC alarm SRVO-134?
Check the cables and connections between the amplifier (CN1) and the MCC. Check the fuse (F1,F3) in the transformer. If using a B-cabinet, replace the EMG control printed circuit board.
Which part is involved in FANUC SRVO-134?
SRVO-134 points to E-stop unit (E-stop unit). Confirm the real cause against the robot backup before replacing a part.

Related codes / Codes liés

SRVO-132SERVO HCAL(PSM) alarm(G:%d A:%d)SRVO-133SERVO FSAL(PSM) alarm (G:%d A:%d)SRVO-135SERVO FSAL alarm (G:%d A:%d)SRVO-136SERVO DCLVAL alarm (G:%d A:%d)

Same hardware involved / Même matériel en cause

SRVO-021E-stop unitSRVO-254E-stop unitSRVO-255E-stop unitSRVO-348E-stop unit

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 →