Where are the relay contacts that provide power to the coils of KM1 and KM2 located?

The relay contacts that provide power to the coils of KM1 and KM2 are found on the emergency stop circuit board. This is critical because the emergency stop system is designed to immediately cut power to certain components, ensuring the safety and control of the machine. The relay contacts are crucial for managing the function of the emergency stop; when the emergency stop is activated, these contacts open and disconnect power from the coils, effectively shutting down the system to prevent accidents.

The other locations mentioned, such as the power supply unit, the servo amplifier, and inside the control panel, do not handle the relay contacts specific to managing emergency stops in the same way the circuit board does. The power supply unit provides electrical power, the servo amplifier is responsible for controlling the motion of motors, and the control panel houses various controls and indicators, but it is not the location for the specific relay contacts related to KM1 and KM2 in the context of emergency stops. Understanding the intricacies of these components ensures better knowledge of how safety features are integrated within FANUC systems.