If PB is pushed and released when the control circuit power is ON, which motor is energized?

When the push button (PB) is pressed and released while the control circuit is powered ON, it typically operates a specific logic or control mechanism designed within the circuit. If the answer indicates that M1 is energized, it suggests that the control circuit is designed such that pressing PB specifically energizes the circuit connected to M1 only, while M2 remains unaffected by this action.

This behavior can usually be attributed to the wiring and logic configuration of the control circuit. In many cases, control circuits are designed to energize a designated load based on the state of inputs like push buttons. By pressing PB, a contact might close, allowing current to flow to M1, thereby energizing it. If the circuit logic indicates that M2 is not connected to this push button or operates under different conditions, it will not be energized.

Understanding the schematic of the control circuit, including how PB interacts with the components, helps clarify the operation. Typically, each motor requires its own control logic and may have distinct inputs that govern its operation. Therefore, if the circuit was designed to energize M2 under different circumstances, that logic would not trigger with the simple action of pushing PB when the power is ON.