LogrobotLM

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FANUC Alarm SRVO-063 — SERVO RCAL alarm(Group:%d Axis:%d)

FANUC SRVO-063 (“SERVO RCAL alarm(Group:%d Axis:%d)”): The built-in rotation counter on the pulse coder is abnormal. First check: 1. Eliminate the of the alarm . Likely part: Pulsecoder (Pulsecoder (motor encoder)).

Updated 2026-08-29 · LogrobotLM reference

Description

The built-in rotation counter on the pulse coder is abnormal.

Remedy · Remède

1. Eliminate the of the alarm . Set the system variable $MCR.$SPC_RESET to TRUE, and turn the power off and then on again. Master the robot. 2. Replace the pulse coder. Master the robot. NOTE: The RCAL alarm might be displayed when any of the SERVO-068 DTERR, SERVO-069 CRCERR, or SERVO-070 STBERR alarms is raised. In this case, however, this alarm can be safely ignored.

Part to check / replace · Pièce à contrôler / remplacer

FANUC SRVO-063 points to the hardware below — start here before ordering. · SRVO-063 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-063 mean?
FANUC SRVO-063 (“SERVO RCAL alarm(Group:%d Axis:%d)”): The built-in rotation counter on the pulse coder is abnormal.
How do you troubleshoot FANUC alarm SRVO-063?
1. Eliminate the of the alarm . Set the system variable $MCR.$SPC_RESET to TRUE, and turn the power off and then on again. Master the robot. 2. Replace the pulse coder. Master the robot. NOTE: The RCAL alarm might be displayed when any of the SERVO-068 DTERR, SERVO-069 CRCERR, or SERVO-070 STBERR alarms is raised. In…
Which part is involved in FANUC SRVO-063?
SRVO-063 points to Pulsecoder (Pulsecoder (motor encoder)). Confirm the real cause against the robot backup before replacing a part.

Related codes / Codes liés

SRVO-061SERVO CKAL alarm(Group:%d Axis:%d)SRVO-062SERVO BZAL alarm(Group:%d Axis:%d)SRVO-064SERVO PHAL alarm(Group:%d Axis:%d)SRVO-065WARN BLAL alarm(Group:%d Axis:%d)

Same hardware involved / Même matériel en cause

SRVO-038PulsecoderSRVO-066PulsecoderSRVO-068PulsecoderSRVO-069Pulsecoder

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 →