CAUTION: Install System Only on Appropriate Applications
Banner EZ-SCREEN Type 2 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 the EZ-SCREEN Type 2 be used on full-revolution clutched
machinery or in unsuitable applications as those listed. If there is any doubt about whether or not
your machinery is compatible with the EZ-SCREEN Type 2, contact Banner Engineering.
CAUTION: Use of EZ-SCREEN Type 2
EZ-SCREEN Type 2 meets the Type 2 requirements of IEC 61496 and Category 2 PLd requirements of
EN ISO 13849-1. DO NOT use EZ-SCREEN Type 2 unless it is installed, tested, and inspected in
accordance with this manual. DO NOT use EZ-SCREEN Type 2 where Control Reliability is required, or
where Category 3, Category 4, or Type 4 AOPD (active opto-electronic protective device) have been
mandated, or where a risk assessment has determined that frequent access by personnel to the hazard
could result in an irreversible or serious injury (for example, OSHA reportable injury).
Typical use is for safeguarding in situations where the consequence of an accident will result in only
slight (normally reversible) injuries that are typically treated by the normal healing processes and minor
medical treatment (that is, first aid, as defined by OSHA 29CFR1904.7).
Failure to follow these instructions could result in serious bodily injury or death.
2.3.1 Examples: Appropriate Applications
EZ-SCREEN Type 2 are typically used for, but is not limited to, the following applications (dependent on machine risk
assessment):
•
Small assembly equipment
•
Automated production equipment
•
"Table-top" robotic work cells
•
Component insertion/"pick-and-place" machines
•
Small packaging machines
•
Equipment and process protection (non-personnel safety)
•
Applications that could result in only slight (normally reversible) injuries (such as bump, bruise, knock-down,
trapping but not crushing, minor cuts and abrasions, etc.)
2.3.2 Examples: Inappropriate Applications
Do not use EZ-SCREEN Type 2 in the following applications:
•
As a primary safeguard in frequently accessed hazardous situations that could result in serious injuries (normally
irreversible, including death)
•
In any case where Control Reliability, Category 3, Category 4, or Type 4 AOPD (active opto-electronic protective
device) have been mandated. See EN ISO 13849-1, IEC 61496-1, or other appropriate standard
•
With any machine that cannot be stopped immediately after a stop signal is issued, such as single-stroke (or full-
revolution) clutched machinery
•
With any machine with inadequate or inconsistent machine response time and stopping performance
•
With 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 ISO 12100, IEC 60204-1, IEC 61496-1, or other
appropriate standard)
If an EZ-SCREEN Type 2 is installed for use as a perimeter guard (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 Type 2 has been manually reset.
2.4 Control Reliability and Safety Categories
To summarize the expected safety circuit performance in high-risk situations, requirements of Control Reliability (OSHA
29CFR1910.217, ANSI B11.19, and ANSI/RIA R15.06) and Category 3 and Category 4 (EN ISO 13849-1) demand that a
reasonably foreseeable, single failure does not lead to the loss of the safety function, and does not prevent a normal or
immediate stop from occurring. The failure or the fault must be detected at or before the next demand of safety (e.g., at
the beginning or end of a cycle, or when a safeguard is actuated). The safety-related part of the control system then must
issue an immediate stop command, or prevent the next machine cycle or hazardous situation until the failure or fault is
corrected.
EZ-SCREEN
®
Type 2 Light Screen
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]
