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FANUC Alarm SRVO-065 — WARN BLAL alarm(Group:%d Axis:%d)

FANUC SRVO-065 (“WARN BLAL alarm(Group:%d Axis:%d)”): The battery voltage for the pulse coder has dropped below the allowable minimum . First check: Replace the battery . Likely part: Backup battery (Backup battery).

Updated 2026-08-29 · LogrobotLM reference

Description

The battery voltage for the pulse coder has dropped below the allowable minimum .

Remedy · Remède

Replace the battery . When this alarm is issued, immediately replace the battery while the system power is turned on. If the BZAL alarm is issued be the battery is not replaced in time, positional data will be lost, thus making it necessary to master the robot.

Part to check / replace · Pièce à contrôler / remplacer

FANUC SRVO-065 points to the hardware below — start here before ordering. · SRVO-065 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-065 mean?
FANUC SRVO-065 (“WARN BLAL alarm(Group:%d Axis:%d)”): The battery voltage for the pulse coder has dropped below the allowable minimum .
How do you troubleshoot FANUC alarm SRVO-065?
Replace the battery . When this alarm is issued, immediately replace the battery while the system power is turned on. If the BZAL alarm is issued be the battery is not replaced in time, positional data will be lost, thus making it necessary to master the robot.
Which part is involved in FANUC SRVO-065?
SRVO-065 points to Backup battery (Backup battery). Confirm the real cause against the robot backup before replacing a part.

Related codes / Codes liés

SRVO-063SERVO RCAL alarm(Group:%d Axis:%d)SRVO-064SERVO PHAL alarm(Group:%d Axis:%d)SRVO-066SERVO CSAL alarm(Group:%d Axis:%d)SRVO-067SERVO OHAL2 alarm (Grp:%d Ax:%d)

Same hardware involved / Même matériel en cause

PAIN-164Backup batteryPNT1-123Backup batterySYST-035Backup battery

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 →