SP0982

SIC-LSI Read Error (Spindle Amplifier Side, 15i)

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

What does SP0982 mean?

An error occurred when data was read from the SIC-LSI on the serial spindle amplifier side for Series 15i. This indicates a data integrity or hardware reading issue within the amplifier's communication interface.

Common Causes

  • Read circuitry malfunction on the SIC-LSI within the spindle amplifier.
  • Data corruption during read operations from the SIC-LSI.
  • Incorrect command sequence for reading from the SIC-LSI.
  • Hardware fault on the amplifier's main board preventing data retrieval.
  • SIC-LSI memory cell failure.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Attempt to read data from multiple SIC-LSI registers to identify a pattern of failure.

  2. 2

    Verify the read command timing against the amplifier's specifications.

  3. 3

    Measure the voltage levels on the serial data lines during a read attempt.

  4. 4

    Perform a diagnostic routine for the SIC-LSI if available in the amplifier's menu.

  5. 5

    Ensure the CNC is correctly interpreting the data received from the amplifier.

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Verified technical data. Last updated: March 2026

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Source: Fanuc AC Spindle Motor Alpha i-Beta i Series Parameters