Fanuc 0i Error Code 128

Fanuc CNC Minor P/S Alarm

Model: FANUC Series 0i / 0i Mate | Code: 128

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

Symptoms

The sequence number specified in a macro branch (GOTO/GOTON) was not found.

Possible Causes

  • The branch destination sequence number N does not exist.
  • Typographical error in the sequence number.

Troubleshooting Steps

  1. Step 1: Verify the branch destination sequence number exists.
    Missing sequence number identified.
  2. Step 2: Correct or add the sequence number.
    Macro branch executes to the correct destination.

How to Reset

Fix the branch destination and reset to clear the alarm.

Related Fanuc Fault Codes

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

Category: CNC