Banner EZ-SCREEN­ Safety Light Curtain Systems - Manual (Page 23)

P/N 133487
21
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Overview
21
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
EZ-SCREEN
Instruction Manual
Installation and Alignment
3.1.1 Separation Distance (Safety Distance)
Minimum Separation Distance (Ds) is the minimum distance
required between the defined area and the closest reachable
hazard point. Separation distance is calculated so that when an
object or a person is detected (by blocking a sensing beam),
the EZ-SCREEN will send a stop signal to the machine, causing
it to stop by the time the person can reach any machine hazard
point.
Calculation of separation distance takes into account several
factors, including a calculated human speed, the total system
stopping time (which itself has several components), and the
depth penetration factor. After the separation distance (Ds)
is determined, record the calculated distance on the Daily
Checkout Card.
3. Installation and Alignment
3.1 Mechanical Installation Considerations
The two factors that influence the layout of the EZ-SCREEN’s
mechanical installation the most are separation distance and
hard guarding. Other considerations include emitter and receiver
orientation, adjacent reflective surfaces, use of corner mirrors,
and installation of multiple EZ-SCREEN emitter/receiver pairs.
Before installing the EZ-SCREEN System, read Section 1.2
and Section 3 of this manual in their entirety. The System’s
ability to perform its safety guarding function depends upon
the appropriateness of the application and upon its proper
mechanical and electrical installation and interfacing to the
guarded machine. If all mounting, installation, interfacing, and
checkout procedures are not followed properly, the System
cannot provide the protection for which it was designed.
Installation must be performed by a Qualified Person, as defined
in Section 4.1. See Warning below.
Figure 3-1. Separation distance and hard guarding
WARNING . . .
Read this Section Carefully
Before Installing the System
The user is responsible for satisfying all local, state, and
national codes and regulations relating to the installation and
use of this control system in any particular application. Take
extreme care to meet all legal requirements and follow all technical
installation and maintenance instructions contained in this manual.
The user has the sole responsibility to ensure that the
EZ-SCREEN System is installed and interfaced to the guarded
machine by Qualified Persons in accordance with this manual
and with applicable safety regulations.
Read Section 1.2 and all of Section 3 of this manual carefully before
installing the system. Failure to follow these instructions could
result in serious bodily injury or death.
WARNING . . .
Proper Separation Distance
Banner EZ-SCREEN emitters and receivers must be mounted at
a distance from the nearest hazard such that an individual cannot
reach the hazard before cessation of hazardous motion or situation.
Failure to establish and maintain the minimum separation
distance could result in serious bodily injury or death.
WARNING . . .
Position Components
Carefully
The emitter and receiver must be positioned such that the
hazard can not be accessed by reaching over, under, around
or through the sensing field. Additional guarding may be required;
see Separation Distance, Section 3.1.1, and Pass-Through Hazards,
Section 3.1.2, and Supplemental Safeguarding, Section 3.1.4.
Hard Guarding
Turn-
table
EZ-SCREEN
Reset Switch
Ds
Nearest Hazard Point
Robot
Hard
Guarding
EZ-SCREEN