Fanuc · AC Spindle Motor Alpha i-Beta i Series Parameters
An error occurred when data was written to the SIC-LSI on the serial spindle amplifier side for Series 15i. This indicates a data integrity or hardware writing issue within the amplifier's communication interface.
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Initiate a write command to a specific register and measure the bus signal response.
Verify that no other device is attempting to write to the same SIC-LSI address simultaneously.
Check parameter P7-01 for any write protection flags related to the spindle amplifier.
Send a known good data pattern to the SIC-LSI and observe the write acknowledge signal.
Ensure stable power supply to the amplifier during attempted write operations.