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ErrorLib — Industrial Fault Code Library

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SP0032

Serial Communication LSI RAM Error

Fanuc · AC Spindle Motor Alpha i-Beta i Series Parameters

What does SP0032 mean?

A RAM error is detected in the Serial Communication LSI. This indicates a problem with the internal memory of the communication interface.

Common Causes

  • RAM error within the Serial Communication LSI chip.
  • Power supply instability to the communication board.
  • Firmware corruption on the communication LSI.
  • Environmental factors affecting the LSI chip.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Power cycle the CNC control and the specific communication board.

  2. 2

    Check voltage supply to the communication board (e.g., 5V, 3.3V).

  3. 3

    Inspect the communication LSI chip for visible damage or overheating.

  4. 4

    If possible, update or re-flash the firmware for the communication LSI.

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

Related Faults

749Serial Communication Error during Activation750Spindle Amplifier Not Activated (16i)PS0223Spindle Not Set for Control
Source: Fanuc AC Spindle Motor Alpha i-Beta i Series Parameters
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