Rockwell Automation 442L-SFZNMN SafeZone Mini Safety Laser Scanner User Manual - Manual (Page 31)

Rockwell Automation Publication 10000337275 Ver 01—October 2014 29
Chapter 5 Mounting
Stationary vertical operation
for hazardous point
protection Hazardous point protection is necessary if the operator must remain near the dangerous state of the machine. Hand
protection is required for hazardous point protection.
Note The SafeZone Mini must therefore be configured with a resolution of at least 40 mm (1.6 in.)
Never use the SafeZone Mini for safety applications in which finger protection is required!
Due to the finest possible resolution of 30 mm (1.2 in.), the SafeZone Mini is not suitable for finger protection.
To protect the protective device against inadvertent adjustment or manipulation, you must use the contour of the
surroundings as a reference for the SafeZone Mini (see Chapter 4, “Using the contour as a reference” on page 21).
Minimum distance
For hazardous point protection, a minimum distance must be observed between protective field and hazardous point. This
safety distance ensures that the hazardous point can only be reached after the dangerous state of the machine has been
completely stopped.
Prevent reaching around or reaching behind the protective field!
Always mount the safety laser scanner such that reaching around and behind is impossible. Provide suitable additional
precautions as necessary.
Fig. 19: Minimum distance to the hazardous area
The minimum distance S as defined in EN ISO 13855 and EN ISO 13857 depends on:
•
Stopping/run-down time of the machine or system
(The stopping/run-down time is shown in the machine documentation or must be determined by taking a
measurement.)
• Response time of the SafeZone Mini
• Reach or approach speed
• Resolution of the SafeZone Mini
How to calculate the minimum distance S (see EN ISO 13855):
 First, calculate S using the following formula:
S = 2000 × (T
M
+ T
S
) + 8 × (d – 14) [mm]
Where …
S
= Minimum distance [mm]
T
M
= Stopping/run-down time of the machine or system
T
S
= Response time of the SafeZone Mini
d = Resolution of the SafeZone Mini [mm]
ATTENTION
ATTENTION
Contour as
reference