Ignore redstone signal (default)
Ignores redstone signals. This is the default.
Redstone signal locks autocrafting
Redstone signal unlocks autocrafting
This is the opposite of the "Redstone signal locks autocrafting" mode.
Redstone pulse inserts next set
This mode was primarily introduced to support a concept called "blocking mode".
Blocking mode is primarily utilised for processing recipes, where the machine that does the processing can only handle 1 recipe at a time.
If the Crafter is in "Redstone pulse inserts next set" mode, this is the flow:
The Crafter will automatically go in an unlocked state
The Crafter now goes in a locked state, and it won’t push out any more items and fluids
The Crafter will stay locked until it receives a redstone pulse
When you apply a redstone pulse:
Generally, you’d apply a redstone signal if the recipe you’re processing has completed. It is up to the player to handle that.
Common mistakes with "Redstone pulse inserts next set"
If the Importer imports too fast AND
the comparator doesn’t pick up the item being in the chest AND
by not picking up the item, thus, not sending out a redstone signal