Fanuc · AC Spindle Motor Alpha i-Beta i Series Parameters
The communication sequence with a serial spindle amplifier for Series 15i was incorrect. This suggests a protocol mismatch or timing issue in the communication exchange.
Click steps to track your progress.
Confirm the serial communication protocol specified in the amplifier manual matches parameter P1-54.
Verify data integrity by checking checksums or CRC values if supported by the protocol.
Re-initialize communication by cycling power to both CNC and spindle amplifier.
Check parameter P1-54 for correct parity, stop bits, and data bits settings.
Execute a loopback test on the serial port to verify its basic functionality.