Banner EZ-SCREEN­ Safety Light Curtain Systems - Manual (Page 4)

2
P/N 133487
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
Overview
2
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
EZ-SCREEN
Instruction Manual
Overview
1.2 Applications and Limitations
The Banner EZ-SCREEN is intended for point-of-operation
machine guarding applications and other safeguarding
applications. It is the user’s responsibility to verify whether the
safeguarding is appropriate for the application and is installed,
as instructed by this manual, by a Qualified Person.
Before installing the EZ-SCREEN, read this manual in its
entirety, paying particular attention to this section and all of
Section 3. The EZ-SCREEN’s ability to perform its safeguarding
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 EZ-SCREEN cannot provide the
protection for which it was designed.
EZ-SCREEN is typically used, but is not limited to, the
following applications:
• Small assembly equipment
• Molding and power presses
• Automated production equipment
• Robotic work cells
• Assembly and packaging machines
• Lean manufacturing systems
EZ-SCREEN may NOT be used with the following machinery
or unsuitable applications:
•
Any machine that cannot be stopped immediately after a stop
signal is issued, such as single-stroke (or “full-revolution”)
clutched machinery.
• Any machine with inadequate or inconsistent machine
response time and stopping performance.
• Any machine that ejects materials or component parts through
the defined area.
• In any environment that is likely to adversely affect
photoelectric sensing efficiency. For example, corrosive
chemicals or fluids or unusually severe levels of smoke or
dust, if not controlled, may degrade sensing efficiency.
• As a tripping device to initiate or reinitiate machine motion
(PSDI applications), unless the machine and its control system
fully comply with the relevant standard or regulation (see
OSHA 29CFR1910.217, ANSI/NFPA 79, ANSI B11, ANSI/
RIA R15.06, ISO 12100, IEC 60204-1, IEC 61496, or other
appropriate standard).
If an EZ-SCREEN is installed for use as a perimeter guard
(i.e., where a pass-through hazard may exist), the dangerous
machine motion can be initiated by normal means only
after the safeguarded area is clear of individuals and the
EZ-SCREEN has been manually reset. See Section 3.1.2.
1.3 Control Reliability: Redundancy and Self-Checking
Redundancy requires that EZ-SCREEN System circuit
components be “backed up” to the extent that, if the failure of
a single component will prevent effective machine stopping
action when needed, that component must have a redundant
counterpart which will perform the same function. The
EZ-SCREEN is designed with redundant microprocessors.
Redundancy must be maintained for as long as the EZ-SCREEN
is in operation. Because a redundant system is no longer
redundant after a component has failed, EZ-SCREEN is
designed to monitor itself continuously. A component failure
detected by or within the self-checking system causes a
“stop” signal to be sent to the guarded machine and puts the
EZ-SCREEN into a Lockout condition.
Recovery from this type of Lockout condition requires:
• replacement of the failed component (to restore redundancy)
and
• the appropriate reset procedure (see Section 1.4.8).
The Diagnostic Display is used to diagnose causes of a Lockout
condition (see Section 5.1).
WARNING . . .
Read this Section Carefully
Before Installing the System
The user is responsible for satisfying all local, state, and national
laws, rules, codes, or 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 installation
and maintenance instructions contained in this manual.
The user has the sole responsibility to ensure that the
EZ-SCREEN is installed and interfaced to the guarded machine
by Qualified Persons in accordance with this manual and
applicable safety regulations.
Carefully read this manual in its entirety, paying particular attention to
Section 1.2 and all of Section 3, before installing the System. Failure
to follow these instructions could result in serious bodily injury
or death.
WARNING . . .
Install EZ-SCREEN Only on
Appropriate Applications
Banner EZ-SCREEN is for use only on machinery that can be
stopped immediately after a stop signal is issued at any point in
the machine’s stroke or cycle, such as part-revolution clutched
machines. Under no circumstances may EZ-SCREEN be used
on full-revolution clutched machinery or in unsuitable applications
as those listed at left. If there is any doubt about whether or
not your machinery is compatible with EZ-SCREEN, contact
Banner’s Application Engineers at the factory.