The usual logic power needed for normal conveyor direction switch are
<5 - normal direction
5 - stopping the direction
5 - inversing the direction
But this one is different. It accept any amount of power to stop the direction, then the direction will be switched from the direction it was when the power is lost. For example, I have this frequency set up where it outputs 1 power every 1 second. The direction of the conveyor (based on the power) will be:
stop > left > stop > right > stop > left
( 1 > 0 > 1 > 0 > 1 > 0 )
when it should be:
stop > left > stop > left > stop > left
( 5 > 10 > 5 > 10 > 5 > 10 )
or:
stop > right > stop > right > stop > right
( 5 > 0 > 5 > 0 > 5 > 0 )