LogrobotLM

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FANUC Alarm ARC-144 — PS internal com-error(E:…)

Manufacturer wording — PS internal com-error(E:%d)
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC ARC-144 (“PS internal com-error(E:…)”): In Power supply, the communication alarm between GABANA CPU and Main CPU occured. First check: Cycle power of the power supply by pressing E-STOP then pressing RESET.

Updated 2026-09-17 · LogrobotLM reference

Description

In Power supply, the communication alarm between GABANA CPU and Main CPU occured.

Remedy

Cycle power of the power supply by pressing E-STOP then pressing RESET.

Related codes

ARC-142MCC monitor abnormal(E:…)ARC-143Power supply/feeder com alarm(E:…)ARC-145PS internal abnormal com-data(E:…)ARC-146Can't use Pulse in CO2(E:…)

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. How this reference is built →