Which LED indicates that the servo amplifier link voltage is present?

The correct answer is associated with the specific LED designation that is used to indicate the presence of the servo amplifier link voltage. This LED serves a crucial function in providing visual feedback regarding the operational status of the servo amplifier. When this particular LED is lit, it signifies that the link voltage necessary for the servo operations is successfully present.

The identification of this LED as being related specifically to the link voltage helps in the diagnostics and troubleshooting of the system. Knowing which indicators correspond to specific operational statuses is fundamental for effective monitoring and ensuring that connection issues or voltage supply problems can be quickly addressed. This awareness is especially important in environments where machinery is operated under automation, as proper voltage is vital for the functionality of servo motors.

The other options do not specifically represent the indicator that corresponds to the servo amplifier link voltage, which is why they do not provide the appropriate response for this specific operational feedback. Understanding these designations is key for users who work with FANUC systems to manage and troubleshoot their operational components effectively.