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ErrorLib — Industrial Fault Code Library

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224

Reference Position Not Established (ZRTN=0)

Fanuc · Alpha i series AC Servo Motor

What does 224 mean?

The reference position has not yet been established. This condition specifically occurs when the ZRTN bit of parameter No.001 is set to 0, preventing the system from confirming its home position.

Common Causes

  • Reference position not yet established.
  • ZRTN bit of parameter No.001 is set to 0.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Set the reference position using the appropriate procedure.

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

Related Faults

000Power-Down Required Parameter011Zero Feedrate Specified013Maximum Feedrate Zero
Source: Fanuc Alpha i series AC Servo Motor
Open Manual (Page 223)Search more codes in this manual