250

Invalid Input Data 1 or Command

Fanuc · Alpha i series AC Servo Motor

What does 250 mean?

Input data 1 or a command specified with a function code is invalid. This means the system received an unrecognized or improperly formatted input.

Common Causes

  • Invalid input data 1 or command specified via a function code.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the input data 1 value or the command code specified with a function code.

Browse all codes in this manual (60)
Verified technical data. Last updated: March 2026

Related Faults

Source: Fanuc Alpha i series AC Servo Motor