116 LD-250 Platform User's Guide 20472-000 Rev B
7.1 Operating Environment
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Conform to standards ANSI B101.3, A137.1, A326.3.
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Be validated according to ASTM F2508-13.
The recommended coefficient of friction for floors in the LD-250’s work space is in the
range: 0.55 – 1.0.
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Steps and Gaps
Typical floor characteristics that are considered to be steps include any height difference
caused by floor stab settling, expansion gaps, or cracks. Other environmental objects
might create a temporary bump, such as a wood pallet fragment, dropped fasteners or a
temporary floor covering.
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Cleanliness and ESD grounding
A foreign object such as a screw or metal fragment embedded in a wheel can affect its
operation over otherwise compliant floor surfaces. Liquid, dirt and dust can affect AMR
operation and cause damage to the AMR over time. It might also affect the operation of
the ESD casters (See Cleaning ESDCasters on page 156).
CAUTION: PROPERTY DAMAGE RISK. The LD-250 is intended for smooth,
hard, and level floors. Although it is capable of driving over steps and gaps,
frequent or high-speed driving over such obstacles shortens the lifespan of
drive train components.
For best performance, Omron recommends that all floor steps or door thresholds have a roun-
ded profile or are filled to ease the transition between surface planes.
The following limits apply for certain floor characteristics.
Characteristic Operating Limits
Inclines and load Incline (ramp) of 3% for maximum payloads.
Be aware that if the AMR frequently operates on steep
inclines its operational duration is reduced.
Step or door threshold height Up to 10 mm (0.39 inch) at 600 mm/s.
Gap width Up to 15 mm (0.6 inch) at 1200 mm/s
Avoiding Potential Immobilization Risks
While unlikely, it is possible for the AMR to drive into a position from which it cannot man-
euver out of without human assistance.
WARNING: PERSONALINJURYORPROPERTYDAMAGERISK
Immobilization might cause motors in the AMR to overheat, exponentially res-
ulting in a fire.
Some examples are shown in Figure 7-1.
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