Mobile Applications; Application Notes; Protective Field Length - Allen-Bradley SafeZone Mini User Manual

Safety laser scanner
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Chapter 4
Mounting

Mobile Applications

48
Response Time T
of the SafeZone Mini Device
S
The response time T
of the SafeZone Mini device depends on the following:
S
• The basic response time of the SafeZone Mini device.
• The multiple sampling set.
See
OSSD Response Times on page
If a vehicle (for example, AGV or fork lift) produces the dangerous state, the
hazardous area that the movement of the vehicle produces is protected by the
SafeZone Mini device.

Application Notes

• The SafeZone Mini device may only be used to help protect vehicles that
are powered by an electric motor.
• In the following calculations, only consider the velocity of the vehicle,
not the speed of the person walking. This is based on the assumption
that the person recognizes the danger and stands still.
• For vehicle protection, observe EN 1525 "Safety of industrial trucks.
Driverless trucks and their systems."
• If the application is to help protect vehicles from collisions, then you
need to use different assumptions.
For a horizontally mounted mobile application, determine:

• Protective field length

• Protective field width
• Height of the scan plane
• Restart behavior
• Methods of preventing unprotected areas
Protective Field Length
You must configure the protective field such that a minimum distance to the
vehicle is maintained. This distance helps ensure that a vehicle that is
monitored by the SafeZone Mini device comes to a stop before a person or
object is reached.
Rockwell Automation Publication 442L-UM005B-EN-P - April 2017
84.

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