Fanuc 0i Error Code 154

Fanuc CNC Major P/S Alarm

Model: FANUC Series 0i / 0i Mate | Code: 154

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

Symptoms

H99 or D99 was specified without a tool group instruction being active.

Possible Causes

  • H99 or D99 tool life reference requires an active tool group.
  • No tool group is currently selected.

Troubleshooting Steps

  1. Step 1: Verify a tool group is selected before using H99/D99.
    Missing tool group selection identified.
  2. Step 2: Select the tool group first, then use H99/D99.
    Program executes with the tool group active.

How to Reset

Select a tool group first and reset to clear the alarm.

Related Fanuc Fault Codes

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

Category: CNC