When does the General Fault light begin to flash?

The General Fault light begins to flash upon detecting an operation or maintenance fault. This is an important indicator in the system that alerts operators to potential issues that could impact safety or operational efficiency.

When the light flashes, it serves as a visual warning that prompts the operator to investigate further. This helps in taking immediate corrective actions, ensuring that any faults are addressed before they lead to more significant problems. The flashing signal is a part of the fault diagnosis mechanism within the system, aimed at maintaining safety standards and operational readiness.

The other scenarios do not necessarily indicate faults. Achieving a stable speed or communication signals to the driver are normal operating conditions, while the light being activated when the train is at a standstill does not specifically indicate a fault situation. Hence, the flashing of the General Fault light is specifically connected to fault detection in operations and maintenance tasks.