Safety Light Curtain Systems Owner manual

page 18
Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: [phone]
Installation and Alignment
EZ-SCREEN Grid
Instruction Manual
3.3 Mechanical Installation Considerations
Two factors have the greatest influence on the mechanical installation of the
EZ-SCREEN System:
• The required separation (safety) distance, and
• The presence of hard guarding.
3.3.1 Minimum Separation Distance (Ds)
Minimum Separation (Safety) Distance (D
s
) is the minimum distance required
between the light grid and the closest reachable hazard point. Separation distance
is calculated so that the EZ-SCREEN Grid System will send a stop signal to the
machine when an object or a person is detected (by blocking a sensing beam),
allowing the machine to come to a stop by the time the person can reach any
machine hazard point.
After the D
s
is determined, record the calculated distance in Section 6.4 (step
2) of this manual, and/or on the Daily Checkout Card.
Figure 3-1. Separation distance
D
s
D
s
D
s
Hazard