Chapter 2: Safety
flat floor. If the workspace includes inclined areas, Omron recommends a gentle incline
typical of wheelchair ramps. Be aware that the payload structure and any loads trans-
ported can:
l
Reduce the AMR's ability to traverse an incline.
l
Change its operating center of gravity (CG).
l
Inclines (Ramps)—With a properly designed and stable payload, the LD-250 can oper-
ate on ramps at full payload capacity. However, extended periods of operation on
ramps will affect battery duration and speed is limited to 600 mm/sec on inclines such
as ramps. Operational recommendations are:
Slope
Payload Restric-
tion
Speed Limit
1.7 degrees (3% grade) No restriction No restriction
3 degree slope 200 kg 600 mm/s
4.75 degrees (1:12 slope, typical wheelchair
ramp)
165 kg 600 mm/s
l
Temperature—5 to 40°C (41 to 104°F), with a recommended humidity range of 5% to
95%, non-condensing. Operating the LD-250 at high or low ambient temperatures (par-
ticularly with a full payload and high speeds) can cause the battery to exceed its oper-
ating temperature limits. If this happens, you are notified by escalating software
messages as follows:
o
The battery is approaching a high or low temperature limit. Change the LD-250's
operating conditions so that the battery can return to within its ambient tem-
perature limits.
o
The battery has exceeded an initial limit, the LD-250 continues to operate but
charging is deferred until the battery has returned to within its ambient tem-
perature limits
o
The battery has exceeded its temperature limits and the LD-250 will shut down
immediately.
The LD-250 has an ingress protection rating of IP20 and is not liquid-proof. Keep floors dry
because liquids might get into the AMR. Damp, dusty, or greasy floors might also cause its
drive wheels to slip or skid. Such traction problems can affect both braking and accuracy.
Non-Intended Use
When deploying an AMR, anticipate potential risks to personnel and equipment. Omron
intends the LD-250 for use in a carefully controlled and managed environment with restricted
access granted only to trained personnel.
You should conduct a risk analysis before you deploy the LD-250 in other environments. For
example, deployments in areas that are open to general public access such as retail stores.
Application of the LD-250 in such areas generally requires additional safety measures.
Omron does not intend the LD-250 for deployment in environments that contain:
l
Hazardous (explosive or corrosive) atmospheres.
l
Ionizing or non-ionizing radiation.
20472-000 Rev B LD-250 Platform User's Guide 41
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