LogrobotLM

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FANUC Alarm SYST-155 — ABC overrun

FANUC SYST-155 (“ABC overrun”): ARM Bending Control function cannot get enough MPU power. First check: Reduce some software options or disable some motion groups which had previously been enabled, and then try the operation again.

Updated 2026-08-29 · LogrobotLM reference

Description

ARM Bending Control function cannot get enough MPU power.

Remedy · Remède

Reduce some software options or disable some motion groups which had previously been enabled, and then try the operation again.

Frequently asked · Questions fréquentes

What does FANUC alarm SYST-155 mean?
FANUC SYST-155 (“ABC overrun”): ARM Bending Control function cannot get enough MPU power.
How do you troubleshoot FANUC alarm SYST-155?
Reduce some software options or disable some motion groups which had previously been enabled, and then try the operation again.

Related codes / Codes liés

SYST-153WARN Cannot SIM/UNSIM DO’s in AUTO modeSYST-154WARN No start in ISOLATE/BYPASS modeSYST-156SYSTEM Unknown hard wareSYST-157SYSTEM CE/RIA software does not exist

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 →