Fanuc · Alpha i Series Servo Amplifier
An error occurred in the servo's safety functions. This can be due to inexecution of servo software safety functions, a mismatch between servo software and CNC results for safety functions, or an error in a servo CPU or RAM test, indicating a critical safety system failure.
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If the cause is related to inexecution of servo software safety functions (condition 1), a servo CPU test error (condition 3), or a servo RAM test error (condition 4), replace the axis control card.