FANUC Alarm SRVO-064 — SERVO PHAL alarm(Group:%d Axis:%d)
FANUC SRVO-064 (“SERVO PHAL alarm(Group:%d Axis:%d)”): This alarm is issued when the phase of a pulse signal generated by the pulse coder is abnormal. First check: Replace the pulse coder. Likely part: Pulsecoder (Pulsecoder (motor encoder)).
Updated 2026-08-29 · LogrobotLM reference
Description
This alarm is issued when the phase of a pulse signal generated by the pulse coder is abnormal.
Remedy · Remède
Replace the pulse coder. After replacing, master the robot. NOTE: If a DTERR, CRCERR, or STBERR alarm is issued, this alarm might also be output at the same time. Should this occur, however, this alarm can be safely ignored.
Part to check / replace · Pièce à contrôler / remplacer
FANUC SRVO-064 points to the hardware below — start here before ordering. · SRVO-064 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-064 mean?
- FANUC SRVO-064 (“SERVO PHAL alarm(Group:%d Axis:%d)”): This alarm is issued when the phase of a pulse signal generated by the pulse coder is abnormal.
- How do you troubleshoot FANUC alarm SRVO-064?
- Replace the pulse coder. After replacing, master the robot. NOTE: If a DTERR, CRCERR, or STBERR alarm is issued, this alarm might also be output at the same time. Should this occur, however, this alarm can be safely ignored.
- Which part is involved in FANUC SRVO-064?
- SRVO-064 points to Pulsecoder (Pulsecoder (motor encoder)). 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 →