What is the consequence of a blown input fuse, F1, on the power supply?

What is the consequence of a blown input fuse, F1, on the power supply?

• A. The controller will restart
• B. A warning signal will be triggered
• C. No display on the teach pendant
• D. The robot will enter safe mode

Answer: (C)

When an input fuse, such as F1, blows in the power supply system of a FANUC controller, the immediate effect is that the power distribution to the controller is interrupted. This lack of power prevents the system from functioning properly. As a direct result, the teach pendant, which relies on the controller to display information and enable interaction with the robot, will not power on or display any information. This absence of a display indicates that the controller is not receiving the necessary power due to the blown fuse, rendering the teach pendant non-functional. While other outcomes, such as a restart or triggered warning signals, might be possible in other scenarios involving different kinds of faults, a blown fuse specifically cuts off power completely, leading to the no display condition on the teach pendant. Safe mode is typically a state that the system can enter to prevent damage when operational conditions are outside acceptable limits, but in the case of a blown fuse, the power loss would prevent any operational state from being established at all, further reinforcing the reasoning behind the correct answer.

When an input fuse, such as F1, blows in the power supply system of a FANUC controller, the immediate effect is that the power distribution to the controller is interrupted. This lack of power prevents the system from functioning properly. As a direct result, the teach pendant, which relies on the controller to display information and enable interaction with the robot, will not power on or display any information. This absence of a display indicates that the controller is not receiving the necessary power due to the blown fuse, rendering the teach pendant non-functional.

While other outcomes, such as a restart or triggered warning signals, might be possible in other scenarios involving different kinds of faults, a blown fuse specifically cuts off power completely, leading to the no display condition on the teach pendant. Safe mode is typically a state that the system can enter to prevent damage when operational conditions are outside acceptable limits, but in the case of a blown fuse, the power loss would prevent any operational state from being established at all, further reinforcing the reasoning behind the correct answer.