Tag: encoder

All the articles with the tag "encoder".

• Fanuc Alarm 300: APC Battery Low — Absolute Encoder Battery Fix

  26 Apr, 2026

  Fanuc Alarm 300 means the absolute encoder battery is low or dead. Replace the 3V lithium battery fast — a dead battery wipes home position and forces re-homing.

• Fanuc Alarm 800: APC Alarm — Causes and Fix

  22 Apr, 2026

  Fanuc Alarm 800 APC alarm: absolute pulse coder fault causes, diagnostic steps, and reset procedures for Fanuc 0i, 16i, 18i, 30i, and 31i systems.

• Fanuc Alarm 300 — APC Alarm Fix (Absolute Encoder)

  10 Mar, 2024

  Fanuc Alarm 300 is an APC (Absolute Pulse Coder) alarm on the absolute encoder. This guide covers battery replacement, encoder initialization, and board-level diagnosis.