Okura Yusoki A Series Manual page 186

Pallet Terminology:
The front and rear positions of the pallet are used to define the pallet coordinate
origin. The pallet has a front, back, left and right. Generally, the pallet is positioned
by the conveyor until the pallet contacts a fixed or pop up stop. The pallet edge that
contacts the stop is routinely designated as the front. OXPA-QmV references this
edge when palletizing. The remaining side of the pallet is referenced from the front.
If you are on the pallet facing the front the rear is behind you, the left is your left,
and the right is your right.
Teaching position:
The teaching position determines the pallet origin on the center, left or right of the
pallet referenced to the front of the pallet.
When using multiple types (sizes) of pallets on the same pallet conveyor, select a
teaching point (pallet origin) that will remain constant between the pallets ranges
used. For example, if the pallets used do not change in width, then the pallet center
does not change and the center should be taught as the pallet origin. If there is a
pallet pusher that registers all of the pallets against a guide on the right then the
right should be taught as the pallet origin.
Pallet width orientation:
When pallet parameters (pallet size) are defined, one side is registered as the width
(PW). PW is always referenced to the front of the pallet. In the "Pallet width
orientation" (Formerly "Approach for fork lift") field, the pattern selection will depend
upon which side of the pallet side of the pallet is contacting the pallet stop (i.e. is the
pallet wide way or narrow way leading).
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