What happens to M after S1 is pushed and released on an OFF-Delay Relay?

In the context of an OFF-Delay Relay, when S1 is pushed and released, the relay initially responds to the input, maintaining the output for a specified duration before turning off. The characteristic feature of an OFF-Delay Relay is that it allows the load (M) to continue running for a set period even after the control element (S1) has returned to its default state.

In this scenario, while the relay is designed to stop the output once it times out, it actually enables M to keep running for the duration of the delay after S1 is released. This means that M will not stop immediately but will continue to run as the relay holds the output for the defined period. This operational behavior is a key aspect of how OFF-Delay Relays function, ensuring that the connected load remains active even after the triggering action has ceased.

The concept of delayed operation is integral to applications where it is necessary to have a load continue functioning for a little while longer after a control signal is removed, thus ensuring a smoother transition and avoiding abrupt stoppage.