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5.2 Considerations
to the platform tends to have less effect on run-time than adding electrical power requirements.
Operating your AIV on carpet will have a significantly shorter run-time than on hard surfaces.
Weight
On a hard surface, a certain amount of extra weight will not shorten the AIV's run-time very
much. When adding a payload structure with substantial weight, the center of gravity of the
entire AIV needs to be considered. This is particularly important if you intend to equip the plat-
form with a robot arm, which would be lifting items off-center from the platform.A heavy pay-
load structure, with most of its weight concentrated just above the platform, will be much
more stable than the same weight payload structure in which the weight is either off-center or
high above the top of the platform.
NOTE: The weight of your payload structure plus the weight of the parts it is car-
rying must not exceed the rated capacity of your platform.
Power Consumption
Using devices on your payload structure that consume significant power will noticeably
shorten the run-time of the AIV. You should try to minimize such power consumption
whenever possible. The battery is rated at 1800 W*hr (1.8 kWh). Examples of power-con-
suming payload structures would be one with a robot arm attached, or any motorized fixture,
such as a conveyor, as part of the payload structure. The standard Operator screen and light
discs consume some power, but are not significant compared to the rest of the platform.
Payload Bay Access
The area between the platform and your payload structure is the payload bay. You will occa-
sionally need to access the platform and the connectors in the payload bay. This is where you
can access all of the platform power and I/O connectors. It's a good idea to provide for access
to this when designing your payload structure.If the payload structure is small and light
enough, you can lift it off of the platform to access the connectors in the payload bay. Always
take care to not damage any wiring between your payload structure and the platform.A larger,
heavier payload structure might need some form of hinge, so you can tilt the payload structure
out of the way while you access the payload bay. You should consider harness length and pos-
ition so you can accomplish this without disconnecting or damaging any connectors or har-
nesses.
Dimensions
Keep your payload structure no wider and no longer than the platform. Add whatever features
are needed by your application above the platform itself.Keep all of the payload structure
higher than the top of the platform. If any of the platform's sensors get blocked, it won't be able
to function correctly. This is critical in the case of the lasers.If you have the optional side-
mount lasers for your payload structure ensure that the payload structure will not interfere
with the beams of those lasers. Typically, the side lasers are mounted on the sides of the pay-
load structure so that they protrude enough to miss the payload structure itself with their laser
beams. Many customers have found it prudent to build a protective guard over the side lasers,
to protect the lasers from impact. Ensure that any such guard does not block the laser beam.
52
LD Platform OEM User's Guide
11970-000 Rev H1
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