Fanuc 0i Error Code 099

Fanuc CNC Minor P/S Alarm

Model: FANUC Series 0i / 0i Mate | Code: 099

Applicable Systems
Series 0i Series 16/18/21 Alpha Beta

Symptoms

An MDI command was executed after the program restart attempt.

Possible Causes

  • MDI mode was used after the restart, invalidating the restart sequence.
  • Operator intervention in MDI mode.

Troubleshooting Steps

  1. Step 1: Avoid MDI commands between restart attempts.
    MDI intervention identified.
  2. Step 2: Re-attempt the program restart from the correct state.
    Program restart executes without MDI conflict.

How to Reset

Avoid MDI after restart and reset to clear the alarm.

Source: Fanuc 0i/0iMate Alarm Code List, FANUC Corporation

Category: CNC