Haas CNC Error Code 126

Haas CNC Major Servo

Model: CNC | Code: 126

Applicable Systems
Haas CNC Mill (VF/VM Series)

Symptoms

The servo exceeded the regulation limit.

Possible Causes

  • Servo position or velocity exceeded the regulation range.
  • Servo parameter or gain setting incorrect.

Troubleshooting Steps

  1. Step 1: Check the servo regulation parameters.
    Regulation issue identified.
  2. Step 2: Adjust the parameters or reduce the command range.
    Servo operates within regulation limits.

How to Reset

Fix the regulation limit and reset to clear the alarm.

Related Haas Fault Codes

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Source: Haas Alarm Codes, Haas Automation

Category: CNC

Published: 2026-10-10