Description of Function
The two loads are energized sequentially, but remain on together until the OFF switch is opened. In the initial OFF state, all three switches are open, the Alternating Relay is in the LOAD 1 position, and both loads are OFF. No action happens with the Alternating Relay or either load when the OFF Switch closes. When the LEAD Switch closes, Load M1 turns ON. When the LAG Switch closes, Load M2 turns ON. Both loads remain ON as long as all three switches are closed. When the LAG Switch opens, Load M2 remains ON because the OFF Switch is still closed. When the LEAD Switch opens, Load M1 remains ON because the OFF Switch is still closed. When the OFF Switch opens, both Load M1 and Load M2 are turned off simultaneously. The Alternating Relay toggles to the LOAD 2 position. The entire cycle is then repeated, but with Load M2 energized first followed by Load M1.