78 LD-250 Platform User's Guide 20472-000 Rev B
5.2 î ±Considerations
to mount a warning light in a more prominent location, which might be appropriate for
AMRs that have taller payloads.
Warning Buzzer
The LD-250 Core provides an output for controlling a warning buzzer as an auditory warning
device. The default behavior of the buzzer is to sound when the AMR is moving in reverse, or
when its safety systems are off.
You can configure the buzzer's operation. For example, you can set it to make a warning noise
whenever the AMR is moving.
5.2 Considerations
Performance
Performance factors to consider when designing a payload structure are:
l
Size, weight, and center of gravity of the payload structure.
l
Power requirements for any electrical devices on the payload.
l
Serviceability and maintenance requirements.
Adding weight to the LD-250 tends to have less effect on battery run time than does increasing
electrical power consumption.
Operating your AMR over soft surfaces (such as carpet) significantly shortens battery runtime
than compared to hard surfaces.
Weight Constraints
The total operating weight of the AMR should comply with its specifications for payload and
any objects carried.
DANGER: PERSONALî ±INJURYî ±ORî ±PROPERTYî ±DAMAGEî ±RISK
The end-user of the AMR must perform a risk assessment to identify and mit-
igate any additional personal and property damage hazards caused by the pay-
load.
When designing and implementing your payload, consider the following:
l
If you operate the LD-250 on the recommended hard, flat surface, additional payload
mass has a minimal effect on battery duration and operating time between recharges.
l
If the payload is tall and also has substantial weight, consider its effect on the AMR's
center of gravity.
l
If the payload overhangs or extends outward dynamically from the AMR (such as a
robot arm), it has a greater effect on the center of gravity. This is particularly important
if the payload is also conveying objects that add additional mass.
l
The AMR might become unstable at lower speeds compared to the platform alone.
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