Banner EZ-SCREEN Low-Profile 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
P/N 140044 rev. E 21
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
EZ-SCREEN LP
Instruction Manual Installation and Alignment
3.1.1 Safety Distance (Minimum Distance)
Separation or Safety Distance (Ds), also called Minimum
Distance (S), is the minimum distance required between the
defined area and the closest reachable hazard point. The
distance is calculated so that when an object or a person is
detected (by blocking a sensing beam), the EZ-SCREEN LP will
send a stop signal to the machine, causing it to stop before the
person can reach any machine hazard point.
The distance is calculated differently for domestic U.S. and
European installations. Both methods take 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 distance is determined,
record the calculated distance on the Daily Checkout Card.
3. Installation and Alignment
3.1 Mechanical Installation Considerations
The two factors that most influence the layout of the
EZ-SCREEN LP’s mechanical installation are safety (minimum)
distance and hard guarding. Other considerations include emitter
and receiver orientation, adjacent reflective surfaces, use of
corner mirrors, and installation of multiple EZ-SCREEN LP
emitter/receiver pairs.
Before installing the EZ-SCREEN LP, 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. Safety (minimum) distance and hard guarding
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.
WARNING . . .
Minimum Safety Distance
EZ-SCREEN LP 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 distance could
result in serious bodily injury or death.
Reduced Resolution
Reduced Resolution increases Dpf (or C). Increase the depth
penetration factor to calculate proper minimum distance
whenever Reduced Resolution is used. Always turn Reduced
Resolution OFF when the larger minimum object detection size is
not required.
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 LP 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.
Hard Guarding (Fixed Guarding)
Turn-
table
EZ-SCREEN LP
Reset Switch
Ds
Nearest Hazard Point
Robot
Hard Guarding
(Fixed Guarding)
EZ-SCREEN LP