EZ-SCREEN Safety Light Screen Instruction Manual

EZ-SCREEN Safety Light Screen Instruction Manual
EZ-SCREEN Safety Light Screen
®
Instruction Manual
Features
• An optoelectronic safeguarding device
• Standard and cascadeable models available
• Compact package for smaller production machines,
robust for large power presses
• Creates a screen of synchronized, modulated infrared
sensing beams. Choose from two resolutions, sized in
150 mm (6•) increments:
14 mm (0.55• ) resolution models with defined areas
from 150 mm to 1.8 m (6• to 71•)
30 mm (1.18• ) resolution models with defined areas
from 150 mm to 2.4 m (6• to 94.5•)
• Optional remote Test input terminals for simulating a
“blocked” condition (available on some emitter models)
• Easily configured Reduced Resolution (Floating
Blanking)
• Three-digit display provides diagnostic information and
indicates number of beams blocked
• Zone indicators identify blocked beams
• FMEA tested to ensure control reliability
• Receiver LEDs provide system status and emitter/
receiver alignment indications
C
R
US
NIPF(7)
UL1998, UL61496
Section Contents
Section 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1
• Highly immune to EMI, RFI, ambient light, weld flash,
and strobe light
Section 2 System Components and Specifications . . . . . . . Page 6
• Two-piece design with External Device Monitoring
Section 4 System Operation . . . . . . . . . . . . . . . . . . . . . . . . Page 41
• Aux. output option to monitor the state of the OSSDs
• Vibration-tolerant, factory burned-in emitter and receiver
circuitry for toughness and dependability
• Up to four pairs of emitters and receivers of different
lengths can be cascaded (SLSC.. models)
Section 3 Installation and Alignment . . . . . . . . . . . . . . . . . . Page 21
Section 5 Troubleshooting and Maintenance . . . . . . . . . . . Page 46
Section 6 Checkout Procedures . . . . . . . . . . . . . . . . . . . . . Page 51
Section 7 Cascadeable EZ-SCREEN . . . . . . . . . . . . . . . . . Page 53
• Safety PLC input compatible (per OSSD specifications)
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Table of Contents
EZ-SCREEN
Instruction Manual
1. System Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 1
1.1
1.2
1.3
1.4
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Applications and Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control Reliability: Redundancy and Self-Checking. . . . . . . . . . . . . . .
Operating Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
2
2
3
2. System Components and Specifications . . . . . . . . . . . . . . . . . Page 6
2.1
2.2
2.3
2.4
2.5
2.6
2.7
Emitter and Receiver Models – 14 mm . . . . . . . . . . . . . . . . . . . . . . . . 7
Emitter and Receiver Models – 30 mm . . . . . . . . . . . . . . . . . . . . . . . . 8
Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Literature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3. Installation and Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 21
3.1
3.2
3.3
3.4
3.5
3.6
3.7
Mechanical Installation Considerations . . . . . . . . . . . . . . . . . . . . . . . 21
Mechanical Mounting Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Initial Electrical Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Light Screen Initial Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Electrical Interface to the Guarded Machine (Permanent
Hookup) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Preparing for System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Sensor “Swapability” and the Optional Emitter Hookup . . . . . . . . . . . .38
4. System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 41
4.1
4.2
4.3
4.4
4.5
4.6
Security Protocol. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Configuration Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reset Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Periodic Checkout Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . .
41
41
42
43
46
46
5. Troubleshooting and Maintenance. . . . . . . . . . . . . . . . . . . . . . Page 47
5.1
5.2
5.3
5.4
Troubleshooting Lockout Conditions. . . . . . . . . . . . . . . . . . . . . . . . . .
Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical and Optical Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Servicing and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
47
50
51
51
6. Checkout Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 52
6.1
6.2
6.3
6.4
Schedule of Checkouts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Commissioning Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shift/Daily Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Semi-Annual (Six-Month) Checkout . . . . . . . . . . . . . . . . . . . . . . . . . .
52
52
53
53
7. Cascadeable EZ-SCREEN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 54
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
Overview of Cascading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Cascadeable Emitter and Receiver Models – 14 mm . . . . . . . . . . . . 55
Cascadeable Emitter and Receiver Models – 30 mm . . . . . . . . . . . . 56
Determining Interconnect Cable Lengths . . . . . . . . . . . . . . . . . . . . . . 57
Response Time for Cascaded Light Screens . . . . . . . . . . . . . . . . . . . 59
Cascaded Sensor Configuration Settings. . . . . . . . . . . . . . . . . . . . . . 61
Programming for Cascaded Operation. . . . . . . . . . . . . . . . . . . . . . . . 61
E-Stop Buttons and Rope/Cable Pulls . . . . . . . . . . . . . . . . . . . . . . . . 62
Positive-Opening Safety Interlock Switches . . . . . . . . . . . . . . . . . . . . .63
Important ...
read this page before proceeding!
In the United States, the functions that EZ-SCREEN is intended
to perform are regulated by the Occupational Safety and Health
Administration (OSHA). Outside of the United States, these
functions are regulated by other agencies, organizations, and
governments. Whether or not any particular EZ-SCREEN
installation meets all applicable requirements depends upon
factors that are beyond the control of Banner Engineering Corp.
These factors include the details of how the EZ-SCREEN is
applied, installed, wired, operated, and maintained. It is the
responsibility of the purchaser and user to apply this
EZ-SCREEN System in full compliance with all relevant
applicable regulations and standards.
EZ-SCREEN can guard against accidents only when it is
properly installed and integrated into the machine, properly
operated, and properly maintained. Banner Engineering Corp.
has attempted to provide complete application, installation,
operation, and maintenance instructions. In addition, please
direct any questions regarding application or use of EZ-SCREEN
to the factory applications department at the telephone number
or addresses shown on the back cover.
In addition to OSHA regulations, several other organizations
provide information about the use of safeguarding devices.
Refer to the American National Standards Institute (ANSI),
the Robotics Industries Association (RIA), the Association for
Manufacturing Technology (AMT), and others (see below).
Banner Engineering Corp. makes no claim regarding a
specific recommendation of any organization, the accuracy or
effectiveness of any information provided, or the appropriateness
of the provided information for a specific application.
The user has the responsibility to ensure that all local, state,
and national laws, rules, codes, and regulations relating
to the use of this safeguarding system in any particular
application are satisfied. Extreme care is urged to ensure
that all legal requirements have been met and that all
installation and maintenance instructions contained in this
manual are followed.
U.S. Standards Applicable to Use of EZ-SCREEN
Glossary of Terms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 65
Safety Standards and Regulations . . . . . . . . . . . . . . . . Inside Back Cover
OSHA 29CFR1910 Occupational Safety and Health Standards
ANSI B11 Standards Safeguarding of Machine Tools
ANSI/RIA R15.06 Safety Requirements for Robot Systems
NFPA 79 Electrical Standard for Industrial Machinery
See inside back cover for information pertaining to
applicable U.S., European and International standards,
and where to acquire copies.
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EZ-SCREEN
Instruction Manual
Overview
Overview
1. System Overview
1.1 Introduction
The Banner EZ-SCREEN provides a redundant, microprocessorcontrolled, opposed-mode optoelectronic “curtain of light,” or
“safety light screen.” It typically is used for point-of-operation
safeguarding, and is suited to safeguard a variety of machinery.
EZ-SCREEN is extensively FMEA (Failure Mode and Effects
Analysis) tested to establish an extremely high degree of
confidence that when properly installed, no system component
will (even if it should fail) cause a failure to danger.
In typical operation, if any part of an operator’s body (or any
opaque object) of more than a pre-determined cross section
is detected, the OSSD solid-state safety outputs will turn off.
These safety outputs are connected to the guarded machine’s
Final Switching Devices (FSDs) that control the primary control
elements (MPCEs), which immediately stop the motion of the
guarded machine.
The OSSD (Output Signal Switching Device) safety outputs
are capable of performing a “handshake” communication with
the Muteable Safety Stop Interface (MSSI) or Universal Safety
Stop Interface (USSI) found on other Banner Engineering safety
products.
Electrical connections are made through M12 (or Euro-style)
quick-disconnects. Some emitter models have a 5-pin connector
for power and the Test function. Other emitters and all receivers
have an 8-pin connector for power, ground, inputs and outputs.
Functions such as Trip/Latch select, Display Invert, Cascading,
Fixed Blanking, Reduced Resolution (Floating Blanking), Scan
Code select, and External Device Monitoring are described in
Section 1.4. All models require a supply voltage of +24V dc
±15%. See Section 2.4 for interfacing solutions.
Both emitter and receiver feature 7-segment Diagnostic
Displays and individual LEDs to provide continuous indication
of the EZ-SCREEN’s operating status, configuration and error
conditions. See Section 1.4.7 for more information.
This manual contains numerous WARNING and CAUTION
statements. Warnings refer to situations that could lead to
significant or serious personal injury or death. Cautions refer to
situations that could lead to slight personal injury or potential
damage to equipment.
Banner EZ-SCREEN is a two-piece (“two-box”) system –
comprising an emitter and a receiver, but no external controller.
The External Device Monitoring (EDM) function ensures the
fault detection capability required by U.S. Control Reliability and
ISO13849-1 Categories 3 and 4 without a third box, a controller
or a “smart” (i.e., self-checking) safety module required of
systems without EDM.
An auxiliary (aux.) output may be used to signal the state of the
OSSDs to a process controller; see Section 1.4.3.
Emitters have a row of synchronized modulated infrared
(invisible) light-emitting diodes (LEDs) in a compact rectangular
metal housing. Receivers have a corresponding row of
synchronized photodetectors. The dimensions of the light screen
created by the emitter and receiver are called the “defined
area”; its width and height are determined by the length of the
sensor pair and the distance between them. The maximum
range is dependent on the resolution; range decreases if corner
mirrors are used. Emitter and receiver pairs with 14 mm (0.55")
resolution have a maximum range of 6 m (20'), and pairs with 30
mm (1.18") resolution have a maximum range of 18 m (60').
Figure 1-1. A typical EZ-SCREEN application: weld cell
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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:
•Smallassemblyequipment
•Moldingandpowerpresses
•Automatedproductionequipment
•Roboticworkcells
•Assemblyandpackagingmachines
•Leanmanufacturingsystems
EZ-SCREEN may NOT be used with the following machinery
or unsuitable applications:
•Anymachinethatcannotbestoppedimmediatelyafterastop
signal is issued, such as single-stroke (or “full-revolution”)
clutched machinery.
•Anymachinewithinadequateorinconsistentmachine
response time and stopping performance.
•Anymachinethatejectsmaterialsorcomponentpartsthrough
the defined area.
•Inanyenvironmentthatislikelytoadverselyaffect
photoelectric sensing efficiency. For example, corrosive
chemicals or fluids or unusually severe levels of smoke or
dust, if not controlled, may degrade sensing efficiency.
•Asatrippingdevicetoinitiateorreinitiatemachinemotion
(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.
EZ-SCREEN
Instruction Manual
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.
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:
•replacementofthefailedcomponent(torestoreredundancy)
and
•theappropriateresetprocedure(seeSection1.4.8).
The Diagnostic Display is used to diagnose causes of a Lockout
condition (see Section 5.1).
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EZ-SCREEN
Instruction Manual
1.4 Operating Features
Overview
Overview
1.4.2 Emitter QD and Hookup Options
The Banner EZ-SCREEN models described by this manual
feature several standard selectable functions:
•ReducedResolution(FloatingBlanking),
•TriporLatchOutput,
•ExternalDeviceMonitoring(EDM),
•AuxiliaryOutput,
•ScanCodesetting,
•FixedBlanking,
•InvertedDisplay,and
•Cascading(availableonSLSC..models).
An EZ-SCREEN emitter with an 8-pin connector can be
connected to its own power supply or to the receiver cable
color-for-color (see Figures 3-19 and 3-20). The color-forcolor hookup allows the emitter and receiver positions to be
interchanged without rewiring.
These functions are configured within the sensors, behind the
access cover on the front of each sensor and in the sensor
wiring configuration; see Sections 3 and 4.2 for more information
and configuration DIP switches.
This feature allows the EZ-SCREEN System to monitor the
status of external devices, such as MPCEs. The choices are
1- or 2-channel monitoring, or no monitoring. EDM is used when
the EZ-SCREEN OSSD outputs directly control the MPCEs or
other external devices; see Sections 3.5.3 and 4.2 for more
information.
The resolution and the maximum range can be determined by
the model number on the emitter and receiver. See Section 2 for
a list of model numbers.
1.4.1 Selectable Trip/Latch Output
The setting for Trip or Latch Output also determines whether the
System will enter RUN mode automatically or if it will require a
manual reset first (see Sections 1.4.8 and 4.2). If the System is
set for Trip Output, other measures must be taken to prevent a
pass-through hazard; see Section 3.1.2 and the warning below
for more information.
If Trip Output is selected, the OSSD outputs will turn ON after
power is applied, and the receiver passes its internal self-test/
synchronization and recognizes that all beams are clear. The
Trip Output will also automatically reset after all beams are
cleared. If Latch Output is selected, the EZ-SCREEN requires
a manual reset for the OSSD outputs to turn ON, after power is
applied and all beams are clear (see Section 4.5).
WARNING . . . Use of Trip/Latch Output
Application of power to the EZ-SCREEN components, the
clearing of the defined area, or the reset of a Latch condition
MUST NOT initiate dangerous machine motion. Machine control
circuitry must be designed so that one or more initiation devices
must be engaged (i.e., a conscious act) to start the machine – in
addition to the EZ-SCREEN going into RUN mode. Failure to follow
these instructions could result in serious bodily injury or death.
NOTE: An EZ-SCREEN emitter with 5-pin connector and Test
function (see Section 1.4.4) is not capable of the colorfor-color hookup.
1.4.3 External Device Monitoring (EDM)
Auxiliary (Aux.) Output
An aux. output function is available when the receiver is
configured for 1-channel EDM (for receivers with date code
0834 or newer). This current sourcing (PNP) solid-state output
(75 mA max.) is used for control functions that are not safetyrelated. A typical use is to signal the state of the OSSDs to a
programmable logic controller (PLC). The aux. output follows
the state of the OSSDs. Pin 2 (orange/black) supplies the
connection; see Section 3.5.5 and Figure 3-23.
1.4.4 Remote Test Input
On 5-pin EZ-SCREEN emitter models (model numbers SLSE..-..
Q5; see Tables 2.1 and 2.2), a Test function is provided. A pair
of wires is connected from the emitter (see Section 3.5.6) to an
external switch, typically a normally open contact, held closed.
Opening a switch connected between these two terminals “turns
off” the emitter, simulating an interruption of one or more light
beams. This remote Test input may be useful for EZ-SCREEN
System setup and to verify machine control circuit operation.
1.4.5 Scan Code Configuration
The emitter and receiver may be configured to one of two
Scan Code positions (1 or 2). Scan codes enable a receiver
to recognize beams only from an emitter with the same Scan
Code setting. This helps minimize the effects of crosstalk
between multiple emitter/receiver pairs, and allows multiple
pairs to operate in close proximity in certain situations. See
Sections 3.1.5 and 3.1.8 for proper mounting configurations.
The Scan Code is set using the selection switch in each
sensor’s configuration port; see Section 4.2 for more
information. Both the emitter and its corresponding receiver
must be set to the identical setting.
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EZ-SCREEN
Instruction Manual
Overview
1.4.6 Reduced Resolution (Floating Blanking)
Reduced Resolution increases the minimum diameter of an
object that the light screen can reliably detect anywhere within
its defined area. Reduced Resolution is generally used to allow
one or more objects (usually workpiece materials) to move
through the defined area, at any point, without tripping the
OSSD safety outputs.
Selecting two-beam Reduced Resolution will reduce the overall
minimum object sensitivity, which allows multiple objects to
move through the defined area (see Section 3.4.2). The effect
is that every two consecutive beams (except for the sync beam)
can be blocked, but not cause the OSSDs to turn OFF. This is
also called “Multiple-Point Floating Blanking.”
Beams of
Defined Area
Resolution directly affects the minimum allowable distance
between the defined area of a light screen and the nearest
hazard point (separation distance, see Section 3.1.1). The
green status indicator on the receiver flashes when Reduced
Resolution is enabled. The ignored object size and resultant
Reduced Resolution are listed in Section 3.4.2.
1.4.7 Status Indicators
Status indicators on both the emitter and receiver are clearly
visible on each sensor’s front panel.
• Emitter:
Bi-color red/green Status indicator – shows whether power is
applied, and whether the emitter is in RUN mode, TEST mode,
or Lockout condition.
1-Digit Diagnostic Display – indicates specific error or
configuration conditions.
• Receiver:
Bi-color red/green Zone indicators – show status of a group of
beams:
- aligned and clear (green ON), or
- blocked and/or misaligned (red ON), or
- fixed blanked area (flashing green).
Yellow Reset indicator – shows System status:
- RUN mode (ON) or
- waiting for a reset (flashing).
Bi-color red/green Status indicator – shows System status:
- Reduced Resolution enabled (flashing green),
- outputs are ON or OFF (green ON or red ON), or
- the System is in Lockout condition (flashing red).
Workpiece
Press Break
Die
3-Digit Diagnostic Display – indicates specific error,
configuration conditions, or total number of blocked beams.
Figure 1-2. Reduced Resolution
See Sections 4.4 and 5.1 for more information about specific
indicator and Diagnostic Display code meanings.
Receiver
Emitter
3-digit
Diagnostic
Display
Zone Indicators
(each shows
status of approx.
1/8 of the total
beams)
1-digit
Diagnostic
Display
Yellow Reset
Indicator
Status Indicator
Status Indicator
(Red/Green)
(Red/Green)
Zone 1 Indicator
(indicates beam synchronization status)
Figure 1-3. EZ-SCREEN emitter and receiver status indicators
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EZ-SCREEN
Instruction Manual
1.4.8 Manual Resets and Lockout Conditions
Reset Routine
The EZ-SCREEN requires a manual reset to clear a PowerUp Lockout or Latch condition, and after correcting the cause
of a Lockout condition. This function is designed to provide a
“monitored manual reset” (i.e., open-closed-open action), such
that a shorted or tied-down button cannot cause a reset. When a
key-operated switch is used, this is typically called a key reset.
To perform a manual reset, close the normally open switch for
at least 1/4 second, but no longer than 2 seconds, and then
re-open the switch. See Sections 3.1.3 and 4.3 for further
information.
A Lockout condition will cause the EZ-SCREEN OSSD outputs
to turn OFF. A Lockout condition is indicated by a flashing
Red Status indicator and an error number displayed on the
Diagnostic Display. Internal Lockout conditions require a
manual reset routine to return the system to RUN mode after
the failure has been corrected and the input has been correctly
cycled. A description of possible lockouts, their causes, and
troubleshooting hints are listed in Section 5.
Trip Output/Auto Reset
While the use of a reset switch is recommended, it is not
required for receivers configured for Trip Output (automatic
reset). Cycling the supply power (OFF for > 2 seconds, then ON)
will also clear lockouts if their cause has been corrected. If a
reset switch is not used, leave pin 8 (violet wire) not connected
(open) and secure it against shorting to a source of power or
ground.
1.4.9 Fixed Blanking
The fixed blanking feature allows for a stationary object(s),
such as tooling, to be ignored while it remains positioned in
the defined area. A flashing Green Zone indicator denotes the
location of a blanked area. If the object is moved or removed,
the System goes into a lockout mode. This ensures that an
unexpected hole in the sensing field is not created.
Overview
Overview
1.4.10 Inverted Display
A push button, located under the access cover, can be used to
invert the display. This is desirable when an emitter and receiver
are mounted with the QD connector ends up. A replacement
access cover with an inverted label is included with each emitter
and receiver to accommodate inverted mounting. (See Section
4.4).
1.4.11 Cascadeable Models
Emitter and receiver models SLSC..* (see Section 7) are
capable of interconnecting up to four emitter/receiver pairs –
regardless of the resolution, the total number of beams, or the
size of the defined area. EZ-SCREEN cascadeable models can
also be used individually as stand-alone systems.
Special cabling is not required, but the double-ended 22 awg
cordsets listed in Section 2.3 are recommended. See Section
7.4 for maximum cable lengths. Pigtail QD models may be used
to reduce the number of required cables.
Response time is dependent on the number of beams in the
light screen, and the light screen’s position in the cascade.
Maximum system response time can be calculated easily for
these cascaded systems, in two ways:
•Individuallyforeachlightscreeninthecascade(separation
distance is calculated for each light screen in the cascade), or
•Basedontheworst-casemaximumfortheentirecascade
(all light screens in the cascade have the same separation
distance).
See Section 7.5 for more information.
*Models SLSC..-150.. not available.
Fixed blanking is easily programmed, simply by positioning the
objects, flipping two DIP switches and resetting the System, as
described in Section 3.4.3.
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EZ-SCREEN
Instruction Manual
Overview and
Components
Components
andSpecifications
Specifications
2. Components and Specifications
An EZ-SCREEN System includes a compatible emitter and receiver (equal length and
resolution; available separately or in pairs), and two cables. Mounting hardware is
included with each emitter and receiver. Interfacing solutions include IM-T-.. modules,
redundant positively guided contactors, or an optional muting module; see Section 2.4.
Standard models (as listed in the following tables) feature a yellow painted aluminum
housing. Other housing finishes are also available, including black, white, and silver
(nickel-plated); contact the factory for more information.
Standard models are listed with integral QD fitting; for a 300 mm (12") pigtail with M12/
Euro-style 8-pin QD fitting, replace the “Q” in the model number with “P”. The 13 mm
(0.5") minimum bend radius accommodates low-clearance installations. When used in
a cascade installation, the pigtail models can reduce the number of cables and improve
clearance and cable management.
Electro-static Dissipative Models
Electro-static dissipative (ESD-safe) versions with nickel-plated housing are also
available, with a static-dissipative polymer coating which protects nearby components
from damaging ESD voltages.
NOTE: ESD-safe models are not available with the pigtail QD option.
Receiver
Specified Test Piece
(2 diameters supplied
with each receiver)
Status indicators
and configuration
switches behind
clear access panel
Emitter
Defined
Area
QD Fitting
QD Cordsets
Figure 2-1. Banner EZ-SCREEN: emitter, receiver, and two
interconnecting cables
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EZ-SCREEN
Instruction Manual
Overview
Components and Specifications
2.1 Standard Emitter and Receiver Models (Non-Cascadeable) – 14 mm Resolution
Order one 8-pin cable for each 8-pin emitter or receiver, or one 5-pin cable for each 5-pin emitter; see Table
2.3. For cascadeable emitter and receiver models, see Sections 7.2 and 7.3.
Defined
Area Height
Emitter (8-pin)†
Standard 14 mm Resolution Models†
0.1 m to 6 m (4" to 20') range
Emitter/Receiver Number
Receiver
Pair†
of Beams
Response
Time (Tr)
150 mm (5.9")
SLSE14-150Q8
SLSR14-150Q8
SLSP14-150Q88
20
11 ms
300 mm (11.8")
SLSE14-300Q8
SLSR14-300Q8
SLSP14-300Q88
40
15 ms
450 mm (17.7")
SLSE14-450Q8
SLSR14-450Q8
SLSP14-450Q88
60
19 ms
600 mm (23.6")
SLSE14-600Q8
SLSR14-600Q8
SLSP14-600Q88
80
23 ms
750 mm (29.5")
SLSE14-750Q8
SLSR14-750Q8
SLSP14-750Q88
100
27 ms
900 mm (35.4")
SLSE14-900Q8
SLSR14-900Q8
SLSP14-900Q88
120
32 ms
1050 mm (41.3")
SLSE14-1050Q8
SLSR14-1050Q8
SLSP14-1050Q88
140
36 ms
1200 mm (47.2")
SLSE14-1200Q8
SLSR14-1200Q8
SLSP14-1200Q88
160
40 ms
1350 mm (53.1")
SLSE14-1350Q8
SLSR14-1350Q8
SLSP14-1350Q88
180
43 ms
1500 mm (59")
SLSE14-1500Q8
SLSR14-1500Q8
SLSP14-1500Q88
200
48 ms
1650 mm (65")
SLSE14-1650Q8
SLSR14-1650Q8
SLSP14-1650Q88
220
52 ms
1800 mm (70.9")
SLSE14-1800Q8
SLSR14-1800Q8
SLSP14-1800Q88
240
56 ms
† Only standard 8-pin QD models are listed; 8-pin emitters/receivers feature “swapable” hookup; see Sections 3.3 and 3.7.
For other models:
5-pin emitters with Test input: Replace suffix “Q8” with “Q5”, (e.g., SLSE14-150Q5), and
for the pair replace “Q88” with “Q85” (e.g., SLSP14-150Q85).
Pigtail QD (8-pin models only): Replace the “Q” in the model number with “P” (e.g., SLSE14-150P8).
ESD-safe models: Add “N” to the model number, prior to the QD option designation (e.g., SLSE14-150NQ8). ESD-safe models are not
available with the pigtail QD option.
Optional housing finishes: Prior to the QD designation in the model number,
add “A” for a clear (brushed) anodized aluminum finish, black endcaps (e.g., SLSE14-150AQ8),
add “S” for a nickel-plated (“silver”) finish, black endcaps (e.g., SLSE14-150SQ8),
add “B” for a black painted finish, black endcaps (e.g., SLSE14-150BQ8),
add “W” for a white painted finish, black endcaps (e.g., SLSE14-150WQ8), or
add “SO” for a “safety orange” painted finish, black endcaps (e.g., SLSE14-150SOQ8).
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EZ-SCREEN
Instruction Manual
Overview and
Components
Components
andSpecifications
Specifications
2.2 Standard Emitter and Receiver Models (Non-Cascadeable) – 30 mm Resolution
Order one 8-pin cable for each 8-pin emitter or receiver, or one 5-pin cable for each 5-pin emitter; see Table
2.3. For cascadeable emitter and receiver models, see Sections 7.2 and 7.3.
Defined
Area Height
Emitter (8-pin)†
Standard 30 mm Resolution Models†
0.1 m to 18 m (4" to 60') range
Emitter/Receiver Number
Receiver
Pair†
of Beams
Response
Time (Tr)
150 mm (5.9")
SLSE30-150Q8
SLSR30-150Q8
SLSP30-150Q88
10
9 ms
300 mm (11.8")
SLSE30-300Q8
SLSR30-300Q8
SLSP30-300Q88
20
11 ms
450 mm (17.7")
SLSE30-450Q8
SLSR30-450Q8
SLSP30-450Q88
30
13 ms
600 mm (23.6")
SLSE30-600Q8
SLSR30-600Q8
SLSP30-600Q88
40
15 ms
750 mm (29.5")
SLSE30-750Q8
SLSR30-750Q8
SLSP30-750Q88
50
17 ms
900 mm (35.4")
SLSE30-900Q8
SLSR30-900Q8
SLSP30-900Q88
60
19 ms
1050 mm (41.3")
SLSE30-1050Q8
SLSR30-1050Q8
SLSP30-1050Q88
70
21 ms
1200 mm (47.2")
SLSE30-1200Q8
SLSR30-1200Q8
SLSP30-1200Q88
80
23 ms
1350 mm (53.1")
SLSE30-1350Q8
SLSR30-1350Q8
SLSP30-1350Q88
90
25 ms
1500 mm (59")
SLSE30-1500Q8
SLSR30-1500Q8
SLSP30-1500Q88
100
27 ms
1650 mm (65")
SLSE30-1650Q8
SLSR30-1650Q8
SLSP30-1650Q88
110
30 ms
1800 mm (70.9")
SLSE30-1800Q8
SLSR30-1800Q8
SLSP30-1800Q88
120
32 ms
1950 mm (76.8")
SLSE30-1950Q8
SLSR30-1950Q8
SLSP30-1950Q88
130
34 ms
2100 mm (82.7")
SLSE30-2100Q8
SLSR30-2100Q8
SLSP30-2100Q88
140
36 ms
2250 mm (88.6")
SLSE30-2250Q8
SLSR30-2250Q8
SLSP30-2250Q88
150
38 ms
2400 mm (94.5")
SLSE30-2400Q8
SLSR30-2400Q8
SLSP30-2400Q88
160
40 ms
† Only standard 8-pin QD models are listed; 8-pin emitters/receivers feature “swapable” hookup; see Sections 3.3 and 3.7.
For other models:
5-pin emitters with Test input: Replace suffix “Q8” with “Q5”, (e.g., SLSE30-150Q5), and
for the pair replace “Q88” with “Q85” (e.g., SLSP30-150Q85).
Pigtail QD (8-pin models only): Replace the “Q” in the model number with “P” (e.g., SLSE30-150P8).
ESD-safe models: Add “N” to the model number, prior to the QD option designation (e.g., SLSE30-150NQ8). ESD-safe models are not
available with the pigtail QD option.
Optional housing finishes: Prior to the QD designation in the model number,
add “A” for a clear (brushed) anodized aluminum finish, black endcaps (e.g., SLSE30-150AQ8),
add “S” for a nickel-plated (“silver”) finish, black endcaps (e.g., SLSE30-150SQ8),
add “B” for a black painted finish, black endcaps (e.g., SLSE30-150BQ8),
add “W” for a white painted finish, black endcaps (e.g., SLSE30-150WQ8), or
add “SO” for a “safety orange” painted finish, black endcaps (e.g., SLSE30-150SOQ8).
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EZ-SCREEN
Instruction Manual
Overview
Components and Specifications
2.3 Cables
Machine interface cables provide power to the first emitter/receiver pair. Sensor interconnect
cables provide power to subsequent emitters and receivers in the cascade.
Single-Ended (Machine Interface) Cables (one cable for each emitter and receiver)
Overmold and cables are PVC-jacketed. Cables are unterminated on one end to interface
with guarded machine.
Model
Number
Length
Wire
Banner Cable
Pinout/Color Code
Termination
European M12
Specification*
For 8-Pin Emitters and Receivers**
Pin Color Function
Pin Color Function
QDE-815D
QDE-825D
QDE-850D
QDE-875D
QDE-8100D
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
4.5 m (15')
8 m (25')
15 m (50')
23 m (75')
30 m (100')
22
gauge
8-pin Eurostyle female
connector on
one end; cut
to length
For 5-Pin Emitters and Receivers***
QDE-515D
QDE-525D
QDE-550D
QDE-575D
QDE-5100D
4.5 m (15')
8 m (25')
15 m (50')
23 m (75')
30 m (100')
22
gauge
5-pin Eurostyle female
connector on
one end; cut
to length
Bn
Or/Bk
Or
Wh
Bk
Bu
Gn/Ye
Vi
+24V dc
EDM #2 (Aux)
EDM #1
OSSD #2
OSSD #1
0V dc
Gnd/Chassis
Reset
Wh
BN
Gn
Ye
Gy
Pk
Bu
Rd
+24V dc
EDM #2 (Aux)
EDM #1
OSSD #2
OSSD #1
0V dc
Gnd/Chassis
Reset
Pin Color Function
Pin Color Function
1
2
3
4
5
1
2
3
4
5
Bn
Wh
Bu
Bk
Gn/Ye
+24V dc
Test #2
0V dc
Test #1
Gnd/Chassis
Bn
Wh
Bu
Bk
Shield
+24V dc
Test #2
0V dc
Test #1
Gnd/Chassis
Connector
(female face view)
1
7
6
1
8
5
5
4
*The European M12 Specification pin assignment and color codes are listed as a customer courtesy. The user must verify suitability of these
cables for each application.
**8-pin Systems require two 8-pin QD cables. Only pins 1, 6, and 7 are connected on 8-pin emitters (see Figure 3-16).
***5-pin EZ-SCREEN emitter, model numbers SLSE..-..Q5 (see Table 2.1) with Test function (see Figure 3-17). One 5-pin and one 8-pin
QD cable required for complete system.
Double-Ended (Sensor Interconnect) Cables
Double-ended cables are generally used to interconnect multiple emitters (8-pin or 5-pin)
or receivers (8-pin) within a cascaded system. They are also useful for extending either
the branch or trunk cables of a model CSB splitter cordset (see page 10). When combining
cables in a multiple-light-screen cascade, refer to Section 7.4 for maximum cable lengths.
Model Number
For 8-Pin Emitters
For 5-Pin Emitters
and Receivers
DEE2R-81D
DEE2R-83D
DEE2R-88D
DEE2R-815D
DEE2R-825D
DEE2R-850D
DEE2R-875D
DEE2R-8100D
DEE2R-51D
DEE2R-53D
DEE2R-58D
DEE2R-515D
DEE2R-525D
DEE2R-550D
DEE2R-575D
DEE2R-5100D
Length
0.3 m (1')
1 m (3')
2.4 m (8')
4.5 m (15')
8 m (25')
15 m (50')
23 m (75')
30 m (100')
Wire
Termination
22 gauge
5- or 8-pin
Double-ended
cables, M12/Eurostyle connectors,
female to male
(rotateable)
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2
3
4
2
3
EZ-SCREEN
Instruction Manual
Overview and
Components
Components
andSpecifications
Specifications
Splitter Cordsets
Model CSB splitter cordsets allow easy interconnection between an EZ-SCREEN 8-pin receiver and its
8-pin emitter, providing a single “homerun” cable for the optional “swapable” hookup (see Figure 3-16).
The model DEE2R-.. double-ended cables described on page 8 may be used to extend the lengths of
the QD trunk, branch #1, or branch #2. (Branch #1 and branch #2 cable sections are 300 mm/1'
long.) The model QDE-8..D single-ended cables may be used to extend the QD trunk for cut-to-length
applications.
Model Number
CSB-M1281M1281
CSB-M1288M1281
CSB-M12815M1281
CSB-M12825M1281
CSB-UNT825M1281
Trunk Length
0.3 m (1')
2.4 m (8')
4.5 m (15')
8 m (25')
Wire
Pinout
Pin #1 (+24V dc)
Pin #2 (EDM#2)
Pin #3 (EDM#1)
Pin #4 (OSSD#2)
Pin #5 (OSSD#1)
Pin #6 (0V dc)
Pin #7 (GND)
Pin #8 (RESET)
22
gauge
Pin #1 (+24V dc)
Pin #2 (EDM#2)
Pin #3 (EDM#1)
Pin #4 (OSSD#2)
Pin #5 (OSSD#1)
Pin #6 (0V dc)
Pin #7 (GND)
Pin #8 (RESET)
M12 Male
M12 Female
or
unterminated
Pin #1 (+24V dc)
Pin #2 (EDM#2)
Pin #3 (EDM#1)
Pin #4 (OSSD#2)
Pin #5 (OSSD#1)
Pin #6 (0V dc)
Pin #7 (GND)
Pin #8 (RESET)
8 m (25')
(unterminated)
M12 Female
Bulkhead Connector
Model Number
PMEF-810D
Description
Connector for panel connection of EZ-SCREEN emitter and receiver
cables. 8-pin Euro-style female connector with 3 m (10') wires cut to
length (Banner color code); 22 gauge.
3m
(9.8')
21.5 mm
(0.85")
7.0 mm
(0.28")
1/4-18NPT
13.0 mm
(0.51")
ø 18.0 mm
(0.71")
M12 x 1
O-Ring
2.4 Accessories
Additional interfacing solutions and accessories continue to be added; refer to
. anner ngineering website for a current list.
Interface Modules
Provide forced-guided, mechanically-linked relay (safety) outputs for the EZ-SCREEN.
See Banner data sheet p/n 62822 and Figure 3-23 for more information.
Interface module (3 N.O. redundant-output 6 amp contacts)
IM-T-9A
Interface module (2 N.O. redundant-output 6 amp contacts, plus 1
N.C. auxiliary contact)
IM-T-11A
Contactors
The N.C. contacts are to be used in an External Device Monitoring (EDM) circuit. If used,
two contactors per EZ-SCREEN System are required. (See Figure 3-18.)
10 amp positive-guided contactor 3 N.O., 1 N.C.
11-BG00-31-D-024
16 amp positive-guided contactor 3 N.O., 1 N.C.
BF1801L024
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EZ-SCREEN
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Overview
Components and Specifications
Muting Modules
Provide muting capability for the EZ-SCREEN. (MM-TA-12B is compatible with all 14 mm
models 1200 mm and shorter, and with all 30 mm models. See Banner manuals p/n 63517
or 116390 for further information and additional cabling options.)
MMD-TA-11B
MMD-TA-12B
DIN-mount
Muting module
2 NO safety outputs (6 amps), 2 or 4 muting inputs, SSI,
override input; IP20; terminal connections
2 OSSD (0.5 amps), 2 or 4 muting inputs, SSI, override input;
IP20; terminal connections
MM-TA-12B
Muting module
2 OSSD (0.5 amps), 2 or 4 muting inputs, USSI, override
input; IP65; QD connections, see below
DESE4-508D
DESE4-515D
DESE4-525D
2.5 m (8’) cable
5 m (15’) cable
8 m (25’) cable
Cable to interface EZ-SCREEN Receiver with MM-TA-12B
Muting Module – 22 Ga, 8-pin Euro-style (M12) female
connector to 7-pin Mini-style male connector; double-ended
AC Boxes
AC power supply for use with EZ-SCREEN emitters and/or receivers. Models
EZAC-R.. can be interfaced with up to three receivers or two cascaded emitter/receiver
pairs; models EZAC-E.. can power up to four emitters.
Box supplies +24V dc power @ 0.7 amps (16.8 W max. power); accepts input voltages
from 100-250V ac (50-60 Hz); IP65 metal housing. Models available with external device
monitoring (EDM); key reset switch on EZAC-R.. models (Receiver/Pair models). See data
sheet p/n 120321 for more information.
Emitter/Receiver Boxes
Model
Outputs
EZAC-R9-QE8
3 N.O.
EZAC-R11-QE8
2 N.O., 1 N.C.
EZAC-R15A-QE8-QS83
1 N.O. + 1 SPDT
(Form C)
EZAC-R8N-QE8-QS53
1 N.O., 1 N.C.
EZAC-R10N-QE8-QS53
2 N.O.
EDM
Emitter/Receiver
Connection
AC Power
Connection
Output and EDM
Connections
Hard-wired
Hard-wired
3-pin
Mini-style QD
8-pin
Mini-style QD
3-pin
Mini-style QD
5-pin
Mini-style QD
Selectable
1- or 2-Channel
or no EDM
1-Channel
8-Pin M12
Euro-style QD
Power
Monitoring
Emitter-Only Boxes
Model
For Emitter Models
Emitter Connection
AC Power Connection
EZAC-E-QE8
SLSE..-..Q8 (without Test input)
8-Pin M12 Euro-style QD
EZAC-E-QE5
SLSE..-..Q5 (with Test input)
5-Pin M12 Euro-style QD
EZAC-E-QE8-QS3
SLSE..-..Q8 (without Test input)
8-Pin M12 Euro-style QD
3-Pin Mini-style QD
EZAC-E-QE5-QS5
SLSE..-..Q5 (with Test input)
5-Pin M12 Euro-style QD
5-Pin Mini-style QD
Hard-wired
Remote Reset Switch
Keyed reset switch can be interconnected using cordset models QDE-8..D, DEE2R-8..D, or
CSB-..M1281.
EZA-RR-1
Remote reset switch with 8-pin M12/Euro-style QD
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EZ-SCREEN
Instruction Manual
Overview and
Components
Components
andSpecifications
Specifications
Lens Shields
NOTE: The total sensing range decreases by approximately 10% per shield.
Sensor Defined Area †
†
Adhesive-Backed Model (1)
Snap-On Model (2)
150 mm
EZS-150
EZSS-150
300 mm
EZS-300
EZSS-300
450 mm
EZS-450
EZSS-450
600 mm
EZS-600
EZSS-600
750 mm
EZS-750
EZSS-750
900 mm
EZS-900
EZSS-900
1050 mm
EZS-1050
EZSS-1050
1200 mm
EZS-1200
EZSS-1200
1350 mm
EZS-1350
EZSS-1350
1500 mm
EZS-1500
EZSS-1500
1650 mm
EZS-1650
EZSS-1650
1800 mm
EZS-1800
EZSS-1800
Adhesive-backed model shown
Contact factory for lens shield availability for longer sensor lengths.
(1)
Polycarbonate shield guards against weld splatter and weld flash with an adhesive-backed neoprene gasket (see data sheet
p/n 61960).
(2)
Copolyester shield provides heavy-duty, impact-resistant protection from many types of cutting fluids (see data sheet p/n 127944).
Tubular Enclosures
EZA-MBK-2 adapter bracket is required for use with MSA Series stand, see page 14 and data sheet P/N 117107.
Enclosure Model †
†
Enclosure Height
For EZ-SCREEN Models
EZA-TE-150
439 mm (17.3")
SLS..-150
EZA-TE-300
541 mm (21.3")
SLS..-300
EZA-TE-450
744 mm (29.3")
SLS..-450
EZA-TE-600
846 mm (33.3")
SLS..-600
EZA-TE-750
1024 mm (40.3")
SLS..-750
EZA-TE-900
1151 mm (45.3")
SLS..-900
EZA-TE-1050
1354 mm (53.3")
SLS..-1050
EZA-TE-1200
1455 mm (57.3")
SLS..-1200
EZA-TE-1350
1608 mm (63.3")
SLS..-1350
EZA-TE-1500
1760 mm (69.3")
SLS..-1500
EZA-TE-1650
1913 mm (75.3")
SLS..-1650
EZA-TE-1800
2065 mm (81.3")
SLS..-1800
Explosion-proof enclosures also
available. Contact factory or visit
anner ngineeringwebsite for
more information.
Contact factory for enclosure availability for longer sensor lengths.
MSA Series Stands (Base Included)*
Stand
Model
Pole
Height
MSA-S24-1
610 mm (24")
MSA-S42-1
1067 mm (42")
MSA-S66-1
1676 mm (66")
MSA-S84-1
2134 mm (84")
Useable Stand
Height
483 mm (19")
940 mm (37")
1550 mm (61")
2007 mm (79")
MSA-S105-1
2667 mm (105”)
2667 mm (100”)
*Available without a base by adding the suffix “NB” to model number, e.g., MSA-S42-1NB.
Overall Stand Height
616 mm (24.25")
1073 mm (42.25")
1682 mm (66.25")
2140 mm (84.25")
2673 mm (105.25”)
Useable
Stand
Height
Pole
40 mm
(1.58") Square
(4) M10 Bolt
127 mm
(5.0")
Base Plate Thickness
6.4 mm (0.25")
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Overview
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MSM Series Corner Mirrors
M4 x 10 mm
Screw
(8 supplied)
53.8 mm
(2.12")
Y
L1
L2
50.8 mm
(2.00")
72.9 mm
(2.87")
Rear-surface glass mirrors rated at 85% efficiency. The total sensing range decreases by
approximately 8% per mirror. See mirror data sheet P/N 43685 or the Banner Safety catalog
for further information.
Defined Area
Length
Mirror
Model
Reflective Area
Y
Mounting
L1
Height
L2
150 mm (5.9")
MSM8A
267 mm (10.5")
323 mm (12.7")
292 mm (11.5")
300 mm (11.8")
MSM12A
356 mm (14")
411 mm (16.2")
381 mm (15")
450 mm (17.7")
MSM20A
559 mm (22")
615 mm (24.2")
584 mm (23")
600 mm (23.6")
MSM24A
660 mm (26")
716 mm (28.2")
686 mm (27")
750 mm (29.5")
MSM32A
864 mm (34")
919 mm (36.2")
889 mm (35")
900 mm (35.4")
MSM36A
965 mm (38")
1021 mm (40.2")
991 mm (39")
1050 mm (41.3")
MSM44A
1168 mm (46")
1224 mm (48.2")
1194 mm (47")
1200 mm (47.2")
MSM48A
1270 mm (50")
1326 mm (52.2")
1295 mm (51")
SSM Series Corner Mirrors
M6 x 19 mm
screw
(4 supplied)
•Rear-surfaceglassmirrorsratedat85%efficiency.The total sensing range decreases by
approximately 8% per mirror. See mirror data sheet P/N 61934 or the Banner Safety catalog
for further information.
101.2 mm
(3.98")
•Robustconstruction,twomountingbracketsandhardwareincluded.
M5 x 10 mm
screw
(4 supplied)
•EZA-MBK-2adapterbracketis required for use with MSA Series stand, see page 14.
Y
L3
L1
L2
100 mm
(3.94")
115 mm
(4.53")
NOTE: Brackets may be inverted from the
positions shown above, decreasing
dimension L1 by 58 mm (2.3").
Defined Area
Length
Mirror
Model*
Reflective Area
Y
Mounting
L1
Height
L2
150 mm (5.9")
SSM-200
200 mm (7.9")
278 mm (10.9")
311 mm (12.2")
300 mm (11.8")
SSM-375
375 mm (14.8")
486 mm (19.1")
453 mm (17.8")
450 mm (17.7")
SSM-550
550 mm (21.7")
661 mm (26.0")
628 mm (24.7")
600 mm (23.6")
SSM-675
675 mm (26.6")
786 mm (31.0")
753 mm (29.6")
750 mm (29.5")
SSM-825
825 mm (32.5")
936 mm (36.9")
903 mm (35.6")
900 mm (35.4")
SSM-975
975 mm (38.4")
1086 mm (42.8")
1053 mm (41.5")
1050 mm (41.3")
SSM-1100
1100 mm (43.3")
1211 mm (47.7")
1178 mm (46.4")
1200 mm (47.2")
SSM-1275
1275 mm (50.2")
1386 mm (54.6")
1353 mm (53.3")
1350 mm (53.1")
SSM-1400
1400 mm (55.1")
1511 mm (59.5")
1478 mm (58.2")
1500 mm (59.0")
SSM-1550
1550 mm (61.0")
1661 mm (65.4")
1628 mm (64.1")
1650 mm (65.0")
SSM-1750
1750 mm (68.9")
1861 mm(73.3")
1828 mm (72.0")
1800 mm (70.9")
SSM-1900
1900 mm (74.8")
2011 mm (79.2")
1978 mm (77.9")
*Stainless steel reflective surface models also available by adding model number suffix “-S” (e.g., SSM-200-S); range reduction for these
models is approximately 30% per mirror. See data sheet p/n 67200.
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EZ-SCREEN
Instruction Manual
Overview and
Components
Components
andSpecifications
Specifications
Accessory Mounting Brackets
See Section 2.5 for standard brackets. Contact factory for more information. Order one
EZA-MBK-.. bracket per sensor, two per pair.
Model
EZA-MBK-2
Description
Adapter bracket for mounting SSM series mirror to
MSA series stands
EZA-MBK-20
50.0 mm
(1.97")
EZA-MBK-20
•Universaladapterbracketformountingto
engineered/slotted aluminum framing
(e.g., 80/20™, Unistrut™).
•RetrofitforBannerMS/US/MG.
44.4 mm
(1.75")
20 mm
(0.79")
4.2 mm
(0.17")
CL
39.2 mm
(1.54")
EZA-MBK-21
Mounting bracket system for “L” configuration of two
cascaded light screens. Order one per side. See
Figure 7-1, data sheet p/n 121007, or contact factory
for more information.
NOTE: Special end brackets included, but not shown.
EZA-MBK-8
Retrofit for Sick FGS and Leuze L-bracket
EZA-MBK-13
Retrofit for Sick C4000,
AB SafeShield/GuardShield,
Omron FS3N, STI MC42/47
EZA-MBK-14
Retrofit for STI MS4300
EZA-MBK-15
Retrofit for STI MS46/47, Keyence PJ-V,
SUNX SF4-AH
EZA-MBK-18
Retrofit for Dolan-Jenner SS7
58.2 mm
(2.29")
40 mm
(1.57")
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EZ-SCREEN
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Overview
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Alignment Aids
Model
LAT-1
Description
LAT-1-SS
Self-contained visible-beam laser tool for aligning any EZ-SCREEN
14 mm and 30 mm emitter/receiver pair. Includes retroreflective target
material and mounting clip.
EZA-LAT-SS
Replacement adaptor (clip) hardware for SLS.. models
EZA-LAT-2
Clip-on retroreflective LAT target
BRT-THG-2-100
2" retroreflective tape, 100'
BT-1
Beam Tracker
EZ-LIGHT™ for EZ-SCREEN®
Provides clear, 360° indication of the EZ-SCREEN receiver’s output status. Use with a
CSB splitter cable and optional DEE2R double-ended cables (see page 9). See data
sheet 121901 for more information.
Models
Construction
M18RGX8PQ8
(See Note below*)
Connector
LED Function
Inputs
Nickel-plated brass housing,
thermoplastic dome,
M18x1 thread mount
Fully encapsulated, IP67
T18RGX8PQ8
Thermoplastic polyester
housing, thermoplastic dome,
18 mm mount
Fully encapsulated, IP67
T30RGX8PQ8
Thermoplastic polyester
housing, thermoplastic dome,
30 mm mount
Fully encapsulated, IP67
K30LRGX8PQ8
Polycarbonate housing,
30 mm thermoplastic dome,
22 mm mount
Fully encapsulated, IP67
K50LRGX8PQ8
Polycarbonate housing,
50 mm thermoplastic dome,
30 mm mount
8-pin
Euro-style
integral QD
Red/Green
indication follows
OSSD output of
the EZ-SCREEN
receiver
ON Red:
Power ON
Beam Blocked
or Lockout
PNP
(Sourcing)
ON Green:
Power ON
Beam Clear
Fully encapsulated, IP67
K80LRGX8PQ8
Polycarbonate housing,
50 mm thermoplastic dome,
flat or DIN mount
Encapsulated electronics, IP67
*Available in a kit that includes one M18 EZ-LIGHT, one SMB18A mounting bracket, and hardware for mounting to the side channel of an EZ-SCREEN housing (kit model
number EZA-M18RGX8PQ8).
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EZ-SCREEN
Instruction Manual
Overview and
Components
Components
andSpecifications
Specifications
2.5 Replacement Parts
Description
Model Number
Panel-mount keyed reset switch
MGA-KSO-1
Replacement key for switch MGA-KSO-1
MGA-K-1
Access cover with label – emitter
EZA-ADE-1
Access cover with label – receiver
EZA-ADR-1
Access cover with inverted label – emitter
EZA-ADE-2
Access cover with inverted label – receiver
EZA-ADR-2
Access cover security plate (includes 2 screws, wrench)
EZA-TP-1
Wrench, security
EZA-HK-1
14 mm test piece (for 14 mm resolution systems)
STP-13
30 mm test piece (for 14 mm resolution systems with 2-beam Reduced
Resolution and for 30 mm resolution systems)
STP-14
60 mm test piece (for 30 mm resolution systems with 2-beam Reduced
Resolution)
STP-15
Terminator plug for cascaded receiver
EZA-RTP-1
Dust cap for cascaded emitter
p/n 64790
Standard bracket kit with hardware (includes 2 end
brackets and hardware to mount to MSA Series
stands; see Figure 2-1)
Black
EZA-MBK-11
Stainless Steel
EZA-MBK-11N
Center bracket kit (includes 1 bracket and hardware to mount to MSA
Series stands), and retrofit for SICK and Leuze Swivel (see Figure 2-1)
EZA-MBK-12
SSM Mirror bracket kit (includes 2 replacement brackets for one mirror)
SMA-MBK-1
2.6 Literature
The following documentation is supplied with each EZ-SCREEN receiver. Additional
copies are available at no charge.
Description
Part #
EZ-SCREEN System Instruction Manual
112852
Checkout Procedure Card (Daily) – Stand-Alone Systems
113361
Checkout Procedure Card (Daily) – Cascaded Systems
118173
Checkout Procedure Card (Semi-Annual)
113362
Diagnostic Display Label
114189
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EZ-SCREEN
Instruction Manual
Overview
Components and Specifications
2.7 Specifications
2.7.1 General Specifications
Short Circuit Protection
All inputs and outputs are protected from short circuits to +24V dc or dc common.
Electrical Safety Class
(IEC 61140: 1997)
III
Safety Rating
Type 4 per IEC 61496-1, -2; Category 4 PL e, per EN ISO 13849-1; SIL 3 per IEC 61508;
SIL CL 3 per IEC 62061
Resolution† and
Operating Range
Not including blanking
14 mm models: 0.1 m to 6 m (4" to 20')
30 mm models: 0.1 m to 18 m (4" to 60')
Range decreases with use of mirrors and/or lens shields:
Lens shields – approximately 10% less range per shield.
Glass-surface mirrors – approximately 8% less range per mirror.
See the specific mirror data sheet or the Banner Safety Catalog for further information.
Effective Aperture Angle
(EAA)
Meets Type 4 requirements per IEC 61496-2, Section 5.2.9
± 2.5° @ 3 m
Enclosure
Size: See Figure 2-2
Materials: Extruded aluminum housing with yellow polyester powder finish standard (optional black or
white or nickel-plated silver finish) and well-sealed, rugged die-cast zinc end caps, acrylic
lens cover, copolyester access cover. End caps on silver models are also nickel-plated.
ESD-safe models have static-dissipative acrylic lens cover.
Rating: IEC IP65
Operating Conditions
Temperature: 0° to +55° C (+32° to 131°F)
Max. Relative Humidity: 95% maximum relative humidity (non-condensing)
Shock and Vibration
EZ-SCREEN components have passed vibration and shock tests according to IEC 61496-1. This
includes vibration (10 cycles) of 10-55 Hz at 0.35 mm (0.014") single amplitude (0.70 mm peak-topeak) and shock of 10 g for 16 milliseconds (6,000 cycles).
Mounting Hardware
Emitter and receiver each are supplied with a pair of swivel end-mounting brackets. Models longer
than 900 mm also include a swivel center-mount bracket. Mounting brackets are 8-gauge cold-rolled
steel, black zinc finish.
Cables and Connections
See Section 2.3 for recommended QD cables. If other cables are used with the EZ-SCREEN, the user
must verify suitability of these cables for each application.
†
Certifications
IEC
61496-1, -2:
-2: Type
Type 44
IEC61496-1,
EN
ISO 13849-1: Cat 4 PL
e
ISO13849-1(EN954-1):
Cat4
C
R
US
NIPF(7)
UL1998, UL61496
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EZ-SCREEN
Instruction Manual
Overview and
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Components
andSpecifications
Specifications
2.7.2 Emitter Specifications
Supply Voltage at the Device
24V dc ±15% (use a SELV-rated supply according to EN IEC60950)
(The external voltage supply must be capable of buffering brief mains interruptions of 20 ms, as
specified in IEC/EN 60204-1.)
Residual Ripple
± 10% maximum
Supply Current
100 mA max.
Remote Test Input
(Optional – available only on
model SLSE..-..Q5 emitters)
Test mode is activated either by applying a low signal (less than 3V dc) to emitter TEST #1 terminal for a
minimum of 50 milliseconds, or by opening a switch connected between
TEST #1 and TEST #2 for a minimum of 50 milliseconds. Beam scanning stops to simulate a blocked
condition. A high signal at TEST #1 deactivates Test Mode. (See Section 3.5.6 for more information.)
High Signal: 10 to 30V dc
Low Signal: 0 to 3V dc
Input Current: 35 mA inrush, 10 mA max.
Controls and Adjustments
Scan Code Selection: 2-position switch (code 1 or 2). Factory default position is code 1.
Status Indicators
One bi-color (Red/Green) Status indicator – indicates operating mode, lockout or power OFF
condition
7-Segment Diagnostic indicator (1 digit) – indicates proper operation, scan code, or error code
See Figure 1-4 for indicator locations and Section 4.4 for indicator conditions.
Wavelength of Emitter Elements
Infrared LEDs, 950 nm at peak emission
2.7.3 Receiver Specifications
Supply Voltage at the Device
24V dc ±15% (use a SELV-rated supply according to EN IEC60950)
(The external voltage supply must be capable of buffering brief mains interruptions of 20 ms, as
specified in IEC/EN 60204-1.)
Residual Ripple
± 10% maximum
Supply Current (no load)
275 mA max., exclusive of OSSD1 and OSSD2 loads (up to an additional 0.5A each)
Response Time
Dependent on number of sensing beams (see Section 2.1 for models and number of beams):
10 beams – 9 ms
60 beams – 19 ms
110 beams – 30 ms
160 beams – 40 ms
20 beams – 11 ms
70 beams – 21 ms
120 beams – 32 ms
180 beams – 43 ms
30 beams – 13 ms
80 beams – 23 ms
130 beams – 34 ms
200 beams – 48 ms
40 beams – 15 ms
90 beams – 25 ms
140 beams – 36 ms
220 beams – 52 ms
50 beams – 17 ms
100 beams – 27 ms
150 beams – 38 ms
240 beams – 56 ms
For cascaded systems, also see Section 7.4.
CSSI Response Time
(SLSC.. cascade models only)
Recovery Time — Blocked to Clear
(OSSDs turn ON; varies with total
number of sensing beams and
whether Sync beam is blocked)
Response time for a cascade receiver due to opening contacts at the cascade interface (CSSI): 40 ms
max (contacts must open for 60 ms minimum). See Section 7.5.
Beam 1 (Sync Beam)
All Other Beams
14 mm Models
109 ms to 800 ms
33 ms to 220 ms
30 mm Models
81 ms to 495 ms
25 ms to 152 ms
EDM Input
+24V dc signals from external device contacts can be monitored (one-channel, two-channel or no
monitoring) via EDM1 and EDM2 terminals in the receiver (see Section 3.5.3).
High Signal: 10 to 30V dc at 30 mA typical
Low Signal: 0 to 3V dc
Dropout Time: 200 ms max.
Reset Input
The Reset input must be high for 1/4 to 2 seconds and then low to reset the receiver.
High Signal: 10 to 30V dc at 30 mA typical
Low Signal: 0 to 3V dc
Closed Switch Time: 1/4 to 2 seconds
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EZ-SCREEN
Instruction Manual
Overview
Components and Specifications
2.7.3 Receiver Specifications, continued
Output Signal Switching Devices
(OSSDs)
Two redundant solid-state 24V dc, 0.5 A max. sourcing OSSD (Output Signal Switching Device) safety
outputs. (Use optional interface modules for ac or larger dc loads.)
Capable of the Banner “Safety Handshake” (see Section 1.1).
ON-State voltage: • Vin-1.5V dc
OFF-State voltage: 1.2V dc max. (0-1.2V dc)
Max. load capacitance: 1.0 • F
Max. load inductance: 10 H
Leakage Current: 0.50 mA maximum
Cable Resistance: 10 • maximum
OSSD test pulse width: 100 to 300 microseconds
OSSD test pulse period: 10 ms to 27 ms (varies with number of beams)
Switching Current: 0-0.5 A
Auxiliary (Aux.) Output Switching
Capacity
Current-sourcing (PNP) solid-state output, 24V dc at 75mA max (see Section 3.5.5).
Controls and Adjustments
Scan Code selection: 2-position switch (code 1 or 2). Factory default position is code 1.
Trip/Latch Output selection: Redundant switches. Factory default position is T (trip).
EDM/MPCE monitor selection: 2-position switch selects between 1- or 2-channel monitoring. Factory
default position is 2.
Reduced Resolution: Redundant switches. Factory default position is OFF.
Ambient Light Immunity
> 10,000 lux at 5° angle of incidence
Strobe Light Immunity
Totally immune to one Federal Signal Corp. “Fireball” model FB2PST strobe
Status Indicators
Yellow Reset indicator – indicates whether system is ready for operation or requires a reset
Bi-color (Red/Green) Status indicator – indicates general system and output status
Bi-color (Red/Green) Zone Status indicators – indicate condition (clear or blocked beam) of a
defined group of beams
7-Segment Diagnostic indicator (3 digits) – indicates proper operation, scan code, or error code,
total number of blocked beams
See Figure 1-4 for indicator locations and Section 4.4 for indicator conditions.
End Cap Brackets
Center Bracket
(model EZA-MBK-11*)
(model EZA-MBK-12**)
4 x 5.8 mm (0.23")
wide slots
Ø 21.5 mm
(0.85")
Ø 33 mm
(1.30")
4 x R 19.4 mm
(0.76")
4 x 45
38.2 mm
(1.50")
2 x 15 mm
(0.59")
4.2 mm
(0.17")
63.2 mm
(2.49")
Ø 60 mm
20 mm
(0.79")
20 mm
(0.79")
17.5 mm
(0.69")
50 mm
(1.97")
25 mm
(0.98")
50 mm
(1.96")
2 x 5 mm
(0.20")
20 mm
(0.79")
55 mm
(2.17")
2 x 7 mm
(0.28")
2 x R 5 mm
(0.20")
** Supplied with emitters
and receivers over 1050 mm.
55.6 mm
(2.19")
4.2 mm
(0.17")
9.5 mm
(0.37")
20 mm
(0.79")
*Dimensions are identical for stainless steel model
EZA-MBK-11N stainless steel brackets for ESD model
emitters and receivers.
10 mm
(0.39")
Ø 8.3 mm
(0.33")
36 mm
(1.42")
Ø 7 mm
(0.28")
15 mm
(0.59")
20.0 mm
(0.79")
Figure 2-1. Included mounting bracket dimensions (for emitter or receiver)
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EZ-SCREEN
Instruction Manual
Overview and
Components
Components
andSpecifications
Specifications
45.2 mm
(1.78")
36.0 mm
(1.42")
12 mm*
(0.47")
See page 19 for detailed
bracket dimensions.
Y
L1
L3
L2
56.0 mm
(2.20")
4.2 mm
(0.17")
65 mm
(2.6")
*For SLS..-150 models, this distance is 52 mm (2")
Emitter / Receiver
Model
Housing Length Distance Between Bracket Holes
L1
L2
L3
Defined Area†
Y
SLS..-150
262 mm (10.3")
295 mm (11.6")
237 mm (9.3")
150 mm (5.9")
SLS..-300
372 mm (14.6")
405 mm (16.0")
347 mm (13.7")
300 mm (11.8")
SLS..-450
522 mm (20.6")
555 mm (21.9")
497 mm (19.6")
450 mm (17.7")
SLS..-600
671 mm (26.4")
704 mm (27.7")
646 mm (25.4")
600 mm (23.6")
SLS..-750
821 mm (32.3")
854 mm (33.6")
796 mm (31.3")
750 mm (29.5")
SLS..-900
971 mm (38.2")
1004 mm (39.5")
946 mm (37.2")
900 mm (35.4")
SLS..-1050
1120 mm (44.1")
1153 mm (45.4")
1095 mm (43.1")
1050 mm (41.3")
SLS..-1200
1270 mm (50.0")
1303 mm (51.3")
1245 mm (49.0")
1200 mm (47.2")
SLS..-1350
1420 mm (55.9")
1453 mm (57.2")
1395 mm (54.9")
1350 mm (53.1")
SLS..-1500
1569 mm (61.8")
1602 mm (63.1")
1544 mm (60.8")
1500 mm (59.1")
SLS..-1650
1719 mm (67.7")
1752 mm (69.0")
1694 mm (66.7")
1650 mm (65.0")
SLS..-1800
1869 mm (73.6")
1902 mm (74.9")
1844 mm (72.6")
1800 mm (70.9")
SLS..-1950
2018 mm (79.4")
2051 mm (80.8")
1993 mm (78.5")
1950 mm (76.8")
SLS..-2100
2168 mm (85.4")
2201 mm (86.7")
2143 mm (84.4")
2100 mm (82.7")
SLS..-2250
2318 mm (91.3")
2351 mm (92.6")
2293 mm (90.3")
2250 mm (88.6")
SLS..-2400
2468 mm (97.2")
2501 mm (98.5")
2443 mm (96.2")
2400 mm (94.5")
R13 mm (0.5")
minimum bend
†Nominal measurement
Figure 2-2. Emitter and receiver mounting dimensions and location of defined area
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EZ-SCREEN
Instruction Manual
Installation and Overview
Alignment
3. Installation and Alignment
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.
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.
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.
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.
Hard Guarding
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.
WARNING . . . Position Components
Hard
Guarding
Robot
Turntable
Ds
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.
EZ-SCREEN
EZ-SCREEN
Reset Switch
Nearest Hazard Point
Figure 3-1. Separation distance and hard guarding
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EZ-SCREEN
Instruction Manual
Installation
Overview and Alignment
The formula used for U.S. applications (other standards may
apply) to calculate separation distance is:
Ds = K x (Ts + Tr) + Dpf
where:
Ds – the separation distance, in mm (inches);
K – 1600 mm per second (or 63" per second), the
OSHA1910.217, ANSI B11, ANSI/RIA R15.06
recommended hand-speed constant (See Note 1);
Ts – the overall stop time of the machine (in seconds) from
the initial “stop” signal to the final ceasing of all motion,
including stop times of all relevant control elements
(e.g., IM-T-.. Interface Modules) and measured at
maximum machine velocity (See Note 2 and Warning at
right).
Tr – the maximum response time, in seconds, of the
EZ-SCREEN emitter/receiver pair (see Section 2.1 for
SLS.. models and Section 7.5 for SLSC.. models); and
Dpf – the added distance due to depth penetration factor as
prescribed in OSHA1910.217, ANSI B11, ANSI/RIA
R15.06 for U.S. applications (See Caution below):
Reduced
Resolution
Depth Penetration Factor (Dpf)
14 mm Systems 30 mm Systems
OFF
24 mm (1")
78 mm (3")
ON
78 mm (3")
180 mm (7")
NOTES:
1. The OSHA-recommended hand speed constant K has
been determined by various studies, and although these
studies indicate speeds of 63"/second to more than 100"/
second, they are not conclusive determinations. Consider all
factors, including the physical ability of the operator, when
determining the value of K to be used.
2. Ts is usually measured by a stop-time measuring device.
If the machine manufacturer’s specified stop time is used,
at least 20% should be added to allow for possible clutch/
brake system deterioration. This measurement must take
into account the slower of the two MPCE channels, and the
response time of all devices or controls that react to stop the
machine. See Notice Regarding MPCEs. If all devices are
not included, the calculated separation distance (Ds) will
be too short and serious injury could result.
WARNING . . . Proper Installation When
Using Reduced Resolution
WARNING . . . Determine Correct Stop Time
Stop time (Ts) must include the response time of all devices
or controls that react to stop the machine. If all devices are
not included, the calculated safety distance (Ds) will be too short.
This can lead to serious bodily injury or death. Be sure to include
the stop time of all relevant devices and controls in your
calculations.
Notice Regarding MPCEs
Each of the two Machine Primary Control Elements
(MPCE1 and MPCE2) must be capable of immediately
stopping the dangerous machine motion, irrespective
of the state of the other. These two channels of
machine control need not be identical, but the stop time
performance of the machine (Ts, used to calculate the
separation distance) must take into account the slower
of the two channels (see Section 3.5.3).
This example shows how to use the formula at left to
calculate separation (safety) distance (Ds). These numbers
will be used for the variables in the formula:
K = 63" per second (the hand speed constant set
by OSHA)
Ts = 0.32 (0.250 second is specified by the machine
manufacturer; plus 20% safety factor; plus
20 ms for interface module IM-T-9A response)
Tr = 0.023 second (the specified response time of
an SLSP14-600 EZ-SCREEN System)
Our example uses a 600 mm system with 14 mm resolution
and Reduced Resolution ON, so Dpf is 3". Response time
for this example is 0.023 second.
Substitute the numbers into the formula as follows:
Ds = K x ( Ts + Tr ) + Dpf
Ds = 63 x (0.32 + 0.023) + 3 = 24.6"
In this example, the EZ-SCREEN emitter and receiver
must be mounted so that no part of the defined area will be
closer than 24.6" to the closest reachable hazard point on
the guarded machine.
Figure 3-2. Separation Distance (Ds) calculation example
Reduced Resolution increases Dpf (see values in table). Increase
the depth penetration factor to calculate the proper separation
distance whenever Reduced Resolution is used. Always turn
Reduced Resolution OFF when the larger minimum object detection
size is not required.
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EZ-SCREEN
Instruction Manual
3.1.2 Pass-Through Hazards
A “pass-through hazard” is associated with applications where
personnel may pass through a safeguard (which issues a stop
command to remove the hazard), and then continues into the
guarded area, such as in perimeter guarding. Subsequently, their
presence is no longer detected, and the related danger becomes
the unexpected start or restart of the machine while personnel
are within the guarded area.
In the use of safety light screens, a pass-through hazard
typically results from large separation distances calculated
from long stopping times, large minimum object sensitivities,
reach-over, reach-through, or other installation considerations.
A pass-through hazard can be generated with as little as 75 mm
(3") between the defined area and the machine frame or hard
guarding.
Reducing or Eliminating Pass-Through Hazards
Eliminate or reduce pass-through hazards whenever possible.
While it is recommended to eliminate the pass-through hazard
altogether, this may not be possible due to machine layout,
machine capabilities, or other application considerations.
One solution is to ensure that personnel are continually sensed
while within the hazardous area. This can be accomplished by
using supplemental safeguarding, such as described by the
ANSI B11 series of safety requirements or other appropriate
standards (see Section 3.1.4).
An alternate method is to ensure that once the safeguarding
device is tripped it will latch, and will require a deliberate manual
action to reset. This method of safeguarding relies upon the
location of the reset switch as well as safe work practices and
procedures to prevent an unexpected start or restart of the
guarded machine (see Section 3.1.3).
WARNING . . . Use of EZ-SCREEN for
Perimeter Guarding
If an EZ-SCREEN System is installed in an application that results
in a pass-through hazard (e.g., perimeter guarding), either the
EZ-SCREEN System or the Machine Primary Control Elements
(MPCEs) of the guarded machine must cause a Latched response
following an interruption of the defined area.
The reset of this Latched condition may only be achieved by
actuating a reset switch that is separate from the normal means of
machine cycle initiation. The switch must be positioned as described
in Section 3.1.3.
Lockout/Tagout procedures per ANSI Z244.1 may be required,
or additional safeguarding, as described by ANSI B11 safety
requirements or other appropriate standards, must be used if a passthrough hazard can not be eliminated or reduced to an acceptable
level of risk. Failure to observe this warning could result in
serious bodily injury or death.
Installation and Overview
Alignment
3.1.3 Reset Switch Location
The reset switch must be mounted at a location that
complies with the warning below.
A key-actuated reset switch provides some operator or
supervisory control, as the key can be removed from the
switch and taken into the guarded area. However, this does not
prevent unauthorized or inadvertent resets due to spare keys in
the possession of others, or additional personnel entering the
guarded area unnoticed.
Resetting a safeguard must not initiate hazardous motion.
Safe work procedures require a start-up procedure to be
followed and the individual performing the reset to verify that
the entire hazardous area is clear of all personnel, before each
reset of the safeguard is performed. If any area can not be
observed from the reset switch location, additional supplemental
safeguarding must be used: at a minimum, visual and audible
warnings of machine start-up.
WARNING . . . Reset Switch Location
All reset switches must be:
•Outsidetheguardedarea,
•Locatedtoallowtheswitchoperatorfull,unobstructedviewofthe
entire guarded area while the reset is performed,
•Outofreachfromwithintheguardedarea,and
•Protectedagainstunauthorizedorinadvertentoperation(suchas
through the use of rings or guards).
If any areas within the guarded area are not visible from the reset
switch, additional safeguarding must be provided, as described
by the ANSI B11 series or other appropriate standards. Failure to
do so could result in serious injury or death.
3.1.4 Supplemental Safeguarding
As described in Section 3.1.1, the EZ-SCREEN components
must be properly positioned such that an individual can not
reach through the defined area and access the hazard point
before the machine has stopped.
Additionally, the hazard can not be accessible by reaching
around, under, or over the defined area. To accomplish this,
supplemental guarding (mechanical barriers, such as screens or
bars), as described by ANSI B11 safety requirements or other
appropriate standards, must be installed. Access will then be
possible only through the defined area of the EZ-SCREEN or
through other safeguarding that prevents access to the hazard
(see Figure 3-3).
The mechanical barriers used for this purpose are typically
called “hard guarding”; there must be no gaps between the
hard guarding and the defined area. Any openings in the hard
guarding must comply with the safe opening requirements of
ANSI B11 or other appropriate standard.
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EZ-SCREEN
Instruction Manual
Installation
Overview and Alignment
3.1.5 Emitter and Receiver Orientation
WARNING . . . The Hazard Must Be
Accessible Only through the Defined Area
The installation of the EZ-SCREEN must prevent any individual
from reaching around, under, over or through the defined area
and into the hazard without being detected. Mechanical barriers
(e.g., hard guarding) or supplemental safeguarding may be required
to comply with this requirement, and is described by ANSI B11
safety requirements or other appropriate standards.
Hard Guarding
Opening
Area
Guarding
The emitter and receiver must be mounted parallel to each other
and aligned in a common plane, with both cable ends pointing
in the same direction. Never mount the emitter with its cable
end oriented opposite the cable end of the receiver. If this
occurs, voids in the light screen may allow objects or
personnel to pass through the defined area undetected (see
Figure 3-4).
The emitter and receiver may be oriented in a vertical or
horizontal plane, or at any angle between horizontal and vertical,
as long as they are parallel and their cable ends point in the
same direction. Verify that the light screen completely covers all
access to the hazard point that is not already protected by hard
guarding or other supplemental guarding.
Hard
Guarding
Robot
Conveyor
Turntable
Area
Guarding
Ds
EZ-SCREEN
EZ-SCREEN
Reset Switch
Figure 3-3. An example of supplemental safeguarding
a. Cable ends point in
opposite directions
b. Emitter and receiver not parallel to
each other
Problem: Voids in defined area
Problem: Reduced excess gain
Figure 3-4. Examples of incorrect emitter / receiver orientation
Figure 3-3 shows an example of supplemental safeguarding
inside a robotic work cell. The EZ-SCREEN, in conjunction
with the hard guarding, is the primary safeguard. Supplemental
safeguarding (such as a horizontal-mounted safety light screen
as an area guard) is required in areas that can not be viewed
from the reset switch (i.e., behind the robot and the conveyor).
Additional supplemental safeguarding may be required to
prevent clearance or trapping hazards (e.g., the safety mat
as an area guard between the robot, the turntable, and the
conveyor).
a. Both cable ends down
b. Both cable ends up
WARNING . . . Proper Orientation of
EZ-SCREEN Emitters and Receivers
EZ-SCREEN emitters and receivers must be installed with their
corresponding cabled ends pointing in the same direction (e.g., both
cabled ends “up”). Failure to orient them properly will impair the
performance of the EZ-SCREEN and will result in incomplete
guarding, and could result in serious bodily injury or death.
c. Oriented parallel to floor
with both cable ends pointing in
the same direction
Figure 3-5. Examples of correct emitter / receiver orientation
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EZ-SCREEN
Instruction Manual
Installation and Overview
Alignment
3.1.6 Adjacent Reflective Surfaces
3.1.7 Use of Corner Mirrors
A reflective surface located adjacent to the defined area may
deflect one or more beams around an object in the defined area.
In the worst case, an “optical short circuit” may occur, allowing
an object to pass undetected through the defined area (see
Figure 3-6).
This reflective surface may result from shiny surfaces or glossy
paint on the machine, the workpiece, the work surface, the
floor or the walls. Beams deflected by reflective surfaces
are discovered by performing the trip test portion of the final
alignment procedure and the periodic checkout procedures
(Section 3.4.4).
To eliminate problem reflections:
• If possible, relocate the sensors to move the beams away
from the reflective surface(s), being careful to maintain
adequate separation distance (see Figure 3-6).
•Otherwise, if possible, paint, mask or roughen the shiny
surface to reduce its reflectivity.
•Where these are not possible (as with a shiny workpiece),
mount the sensors in such a way that the receiver’s field of
view and/or the emitter’s spread of light are restricted.
•Repeat the trip test to verify that these changes have
eliminated the problem reflection(s). If the workpiece is
especially reflective and comes close to the defined area,
perform the trip test with the workpiece in place.
WARNING . . . Avoid Installation Near
Reflective Surfaces
Avoid locating the defined area near a reflective surface; it could
reflect sensing beam(s) around an object or person within the
defined area, and prevent its detection by the EZ-SCREEN System.
Perform the trip test, as described in Section 3.4.4, to detect such
reflection(s) and the resultant optical short circuit.
Failure to prevent reflection problems will result in incomplete
guarding and could result in serious bodily injury or death.
EZ-SCREEN may be used with one or more corner mirrors
(see Section 2.4). The use of glass-surface corner mirrors
reduces the maximum specified emitter/receiver separation by
approximately 8 percent per mirror, as follows:
SSM and MSM Series Glass-Surface Mirrors –
Maximum Emitter and Receiver Separation
Sensor Models
Number of Corner Mirrors
1
2
3
4
14 mm Resolution Models
6 m (20') Range
5.5 m
(18')
5.1 m
(17')
4.7 m
(15.5')
4.3 m
(14')
30 mm Resolution Models
18 m (60') Range
16.6 m
(54.5')
15.3 m
(50')
14.1 m
(46.5')
13 m
(43')
See the specific mirror data sheet or the Banner Safety Catalog
for further information.
WARNING . . . Avoid Retroreflective
Installation
Do not install emitters and receivers in “retroreflective” mode,
with less than a 45° angle of incidence, as shown in Figure 3-7.
Sensing could be unreliable in this configuration; serious
bodily injury or death could result.
Mirrors are not allowed for applications that would allow
personnel undetected access into the safeguarded area.
If mirrors are used, the difference between the angle of
incidence from the emitter to the mirror and from the mirror to
the receiver must be between 45° and 120° (see Figure 3-7).
If placed at a sharper angle, as shown in the example, an
object in the light screen may deflect beam(s) to the receiver,
preventing the object from being detected (i.e., “false proxing”).
Angles greater than 120° result in difficult alignment and
possible optical short circuits.
Emitter
Mirror
Do not position reflective surfaces
within the shaded area
Emitter
d
Recommended sensor
configuration angle:
Receiver
A
45° < A < 120°
d
Mirror
Operating Range
(R)
At installed operating range (R):
d=0.0437 × R (m or ft)
Operating range 0.1 to 3 m (4" to 10'): d = 0.13 m (5")
Operating range >3 m ( > 10’): d = 0.0437 × R (m or ft)
Figure 3-6. Adjacent reflective surfaces
Emitter
Receiver
Receiver
Figure 3-7. Never use EZ-SCREEN sensors in a retroreflective mode.
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EZ-SCREEN
Instruction Manual
Installation
Overview and Alignment
3.1.8 Installation of Multiple Systems
Emitter
Whenever two or more EZ-SCREEN emitter and receiver pairs
are adjacent to one another, optical crosstalk may potentially
take place between systems. To minimize optical crosstalk,
alternate the positions of emitters and receivers, (see Figure
3-8a), or alternate Scan Codes.
When three or more sensor pairs are installed in the same plane
(as shown for two pairs in Figure 3-8), optical crosstalk may
occur between sensor pairs whose emitter and receiver lenses
are oriented in the same direction. In this situation, eliminate
optical crosstalk by mounting these sensor pairs exactly in line
with each other within one plane, or by adding a mechanical
barrier between the pairs.
To further aid in avoiding crosstalk, the sensors feature two
selectable Scan Codes. A receiver set to one Scan Code will not
“see” an emitter set to another code (see Section 4.2).
Receiver
Receiver
Scan Code 1
Emitter
b. Two or three pairs stacked
(or alternate receiver/emitter positions)
Receiver
Receiver 1
Scan
Code1 1
Scan Code
Emitter
Emitter 1
c. Two pairs at right angles
WARNING . . . Scan Code
In situations where multiple systems are mounted closely
together, or where a secondary emitter is in view (within ±5°),
within range of an adjacent receiver; the adjacent systems must be
configured for different Scan Codes (i.e., one system set for Scan
Code 1 and the other for Scan Code 2).
If not, a receiver may synchronize to the signal from the wrong
emitter, reducing the safety function of the light screen.
a. Two pairs
in a horizontal plane
Scan Code 1
Emitter
Scan Code 1
Receiver
Receiver
Receiver 2
Scan
Code2 2
Scan Code
Scan Code 2
Emitter
Emitter 2
Horizontal
Emitter
Emitter
Emitter 3
This situation will be discovered by performing the trip test
(see Section 3.4.3).
Horizontal
Receiver
Scan
Code
Scan Code
2 2
Receiver
Receiver 3
WARNING . . . Multiple Pairs of Sensors
Emitter 1
Do not connect multiple pairs of sensors to one Interface
Module (e.g., IM-T-9A/-11A) or otherwise parallel OSSD outputs.
Receiver 1
Connection of multiple OSSD safety outputs to a single device
can result in serious bodily injury or death, and is prohibited.
Receiver 2
Emitter 2
Opaque
Shield
Scan Code 1
Emitter 3
Scan Code 2
Receiver 3
d. Multiple pairs
in a horizontal plane
Scan Code 2
Figure 3-8. Installation of multiple pairs; alternate emitters and
receivers to avoid optical crosstalk.
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EZ-SCREEN
Instruction Manual
Installation and Overview
Alignment
EZ-SCREEN Mounting Hardware
(supplied with each emitter and receiver)
End-Mounted
Emitters and Receivers 1050 mm and longer also
include swivel center bracket
Sensors are designed to be mounted with up to
900 mm unsupported distance between brackets
(see Section 3.2.1).
Bracket
Clamp
Side-Mounted
(Two center brackets
may be substituted)
NOTES:
• EZ-SCREEN sensor brackets are designed to mount
directly to MSA Series stands (Section 2.3), using the
hardware supplied with the stands.
• See Figure 2-1 for mounting bracket dimensions.
Figure 3-9. Emitter and receiver mounting hardware
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EZ-SCREEN
Instruction Manual
Installation
Overview and Alignment
3.2 Mechanical Mounting Procedure
Once the mechanical layout considerations of Section 3.1 are
addressed, mount the sensors and route the cables.
3.2.1 Sensor Mounting
Emitter/receiver pairs with 14 mm (0.55") resolution may be
spaced from 0.1 m to 6 m (4" to 20') apart. Emitter/receiver
pairs with 30 mm (1.18") resolution may be spaced from
0.1 m to 18 m (4" to 60') apart. The maximum distance between
an emitter and its receiver is reduced if corner mirrors are used
(see Section 3.1.7). The supplied brackets (when mounted to
the sensor end caps) allow ±30° rotation.
From a common point of reference (ensuring the minimum
separation distance calculated in Section 3.1.1), make
measurements to locate the emitter and receiver in the same
plane with their midpoints directly opposite each other.
Important: The connector ends of both sensors must point
in the same direction (see Figure 3-5 and warning, Section
3.1.3). Mount the emitter and receiver mounting brackets (see
below) using the supplied M6 bolts and Keps nuts, or usersupplied hardware; see Figure 3-9.
Mount the emitter and receiver in their brackets; position their
windows directly facing each other. Measure from a reference
plane (e.g., a level building floor) to the same point(s) on the
emitter and receiver to verify their mechanical alignment. Use
a carpenter’s level, a plumb bob, or the optional LAT-1 Laser
Alignment Tool (see Section 2.5) or check the diagonal distances
between the sensors, to achieve mechanical alignment. Final
alignment procedures are explained in Section 3.4.
Center mounting brackets must be used with longer sensors,
whenever the sensors are subject to shock or vibration. In such
situations, the sensors are designed to be mounted with up
to 900 mm unsupported distance (between brackets). Sensors
1050 mm and longer are supplied with a center bracket to be
used as needed with the standard end-cap brackets (see Figure
3-9).
1. Attach the center bracket to the mounting surface when
mounting the end-cap brackets.
2. Attach the clamp to both slots of the housing, using the
included M5 screws and T-nuts.
3. After the sensor is mounted to the end-cap brackets, attach
the clamp to the center bracket using the supplied M5 screw.
Verify that:
•Theemitterandreceiveraredirectlyoppositeeachother.
•Nothingisinterruptingthedefinedarea.
•Thedefinedarea(markedonthesensors)isthesamedistance
from a common reference plane for each sensor.
•Theemitterandreceiverareinthesameplaneandare
level/plumb and square to each other (vertical, horizontal,
or inclined at the same angle, and not tilted front-to-back or
side-to-side).
Emitter
Emitter
Receiver
Level
Level
X
A
Level
B
Receiver
Level
X
Y
Z
Y
Z
Level Surface
Angled or Horizontal Installations – verify that:
•DistanceXattheemitterandreceiverareequal.
•DistanceYattheemitterandreceiverareequal.
•DistanceZattheemitterandreceiverareequalfromparallelsurfaces.
•Verticalface(i.e.,thewindow)islevel/plumb.
•Definedareaissquare.Checkdiagonalmeasurementsifpossible;see
Vertical Installations, at right.
X
X
Level Surface
Vertical Installations – verify that:
•DistanceXattheemitterandreceiverareequal.
•Bothsensorsarelevel/plumb(checkboththe
side and face).
•Definedareaissquare.Checkdiagonalmeasurementsif
possible (Diagonal A = Diagonal B).
Figure 3-10. Sensor mounting, mechanical alignment
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EZ-SCREEN
Instruction Manual
Installation and Overview
Alignment
3.2.2 Mounting the Reset Switch
3.3 Initial Electrical Connections
Mount the reset switch in a location that complies with the warning
in Section 3.1.3. See Section 3.3.2 for electrical connection.
3.2.3 Routing Cables
Connect the QD connectors and route the sensor cables to the
junction box, electrical panel, or other enclosure in which the
Interface Module, the redundant mechanically linked interposing
relays, FSDs, or other safety-related parts of the control system
are located. This must be done per local wiring code for lowvoltage dc control cables and may require installation of electrical
conduit. See Section 2.2 for selection of Banner-supplied cables.
EZ-SCREEN is designed and manufactured to be highly
resistant to electrical noise and to operate reliably in industrial
settings. However, extreme electrical noise may cause a random
Trip or Latch condition; in extreme cases, a Lockout is possible.
Emitter and receiver wiring is low voltage; routing the sensor
wires alongside power wires, motor/servo wires, or other highvoltage wiring may inject noise into the EZ-SCREEN System.
It is good wiring practice (and may be required by code) to
isolate emitter and receiver cables from high-voltage wires,
avoid routing cables close to “noisy” wiring, and provide a good
connection to earth ground.
Sensor QD cabling and any interconnect wiring should meet
the following specifications. The wires used should have an
insulation temperature rating of at least 90°C (194°F).
Maximum Machine Interface cable length (ft)
versus total current draw (including both OSSD loads)
0.5A
0.75A
1.0A
1.25A
1.5A
1.75A
18 AWG
375
250
188
148
125
109
20 AWG
240
160
120
95
80
70
22 AWG*
150
100
75
59
50
44
*QDE-...D cables, see table 2.2
See Section 7.4 for cascade installations.
NOTE: Maximum cable lengths are intended to ensure that
adequate power is available to the EZ-SCREEN System
when the supply is operating at +24V dc – 15%.
WARNING . . . Proper Electrical Hookup
Electrical hookup must be made by Qualified Personnel
and must comply with NEC (National Electrical Code) and local
standards.
Make no more connections to the EZ-SCREEN System than are
described in Sections 3.3.1 through 3.5.3 of this manual.
Connection of other wiring or equipment to the EZ-SCREEN
System could result in serious bodily injury or death.
Lockout/tagout procedures may be required (refer to OSHA
29CFR1910.147, ANSI Z244-1, or the appropriate standard
for controlling hazardous energy). Following relevant electrical
standards and wiring codes, such as the NEC, NFPA79 or
IEC60204-1, always connect earth ground (green/yellow
wire, see Figures 3-20 through 3-23). Do not operate the
EZ-SCREEN System without an earth ground connection.
See the warning below.
Make the electrical connections in the order described in this
section. Do not remove end-caps; no internal connections are to
be made. All connections are made through the M12 Euro-style
quick-disconnects.
When installing QD cables, do not use tools to tighten the
coupling nut (i.e. hand-tighten only). Do not rotate the body of
the QD, or damage to the connector can occur.
Emitter Cable
Standard EZ-SCREEN emitters have an 8-pin cable, but only
three conductors are used (Brown = +24V dc, Blue = 0V dc,
Green/Yellow = GND). The other wires are in place to allow a
parallel connection (color-for-color) to the receiver cable (see
Figure 3-19), providing sensor interchangeability (or swapability);
either sensor may be installed at either cordset connection.
In addition to providing similar cabling, this wiring scheme is
advantageous during installation, wiring, and troubleshooting.
Emitters with the optional TEST function (model number suffix
Q5) use a 5-pin cable (see Figure 3-20). Locate the black and
the white wires at the cable end; if the Test input will be used,
temporarily connect the ends of the wires to each other (but not
to an external contact at this time). If the Test input will not
be used, connect the emitter cable black and white wires
together and properly terminate (e.g., with the included
wire-nut).
Receiver Cable
Do not connect any wires to the machine control circuits
(i.e., OSSD outputs) at this time. For the initial power-up and
checkout, NO EDM must be configured. Locate the orange and
orange/black wires (pins 2 and 3) and temporarily connect the
ends of the wires to each other (but not to the machine at this
time). Take precautions to prevent the wires from shorting to
ground or to other sources of energy (e.g., terminate with the
included wire-nut). Final EDM wiring must be completed later.
If used, connect the external reset switch to the reset wire
(violet) on the receiver cable and to 24V dc (see Figures 3-21
and 3-23). See warning in Section 3.1.3 about the physical
location of the external reset switch. The reset switch must be
a normally open switch that is held closed for approximately 1/4
second, but no longer than 2 seconds, and then re-opened to
accomplish the reset. The switch must be capable of switching
10 to 30V dc at 30 mA.
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Installation
Overview and Alignment
3.4 Light Screen Initial Checkout
The initial checkout procedure must be performed by a Qualified
Person (see Section 4.1). It must be performed only after
configuring the System and after connecting the emitter and
receiver per Section 3.3.
EZ-SCREEN
Instruction Manual
Leaving power to the guarded machine OFF, make power and
earth ground connections on both the emitter and receiver
cables (see Figures 3-20 to 3-23) and then power up the
EZ-SCREEN System (only).
Verify that input power is present to both emitter and
receiver. At least one indicator on both emitter and receiver
should be ON and the start-up sequence should cycle.
• • • • • • ••• • ••• ••• ••••• ••• •••• ••••••• • •••• • •••••••••••••••••••••••••••••••••••••••••••
Verify that Test input is jumpered (if used) and the System is set 3. Observe both the emitter and the receiver System Status
to the factory defaults for initial checkout and optical alignment.
indicators and the receiver Zone indicators to determine light
(Factory defaults are for Trip Output, 2-Channel EDM, Reduced
screen alignment status:
Resolution OFF, and Scan Code 1. See Figure 4-1.)
•A Lockout condition (emitter or receiver) – the System Status
The procedure is performed on two occasions:
indicator single-flashing Red, and the receiver Zone and Reset
indicators OFF. Proceed to Section 5 for diagnostic information.
•ToensureproperinstallationwhentheSystemisfirstinstalled,
and
•Normal operating mode (emitter) – the System Status
indicator ON Green.
•ToensureproperSystemfunctionwheneveranymaintenance
or modification is performed on the System or on the
•TEST mode (5-pin emitters only) – a flashing Green System
machinery being guarded by the System. (See Section 6.1 for
Status indicator (Test input open, see Figure 3-20 and Section
a schedule of required checkouts.)
5.2).
For the initial checkout, the EZ-SCREEN System must be
•A Latch condition (receiver), all optical beams clear – the
checked without power being available to the guarded machine.
receiver System Status indicator ON Red and the Reset
Final interface connections to the guarded machine cannot
indicator double-flashing Yellow; Zone indicators ON Green.
take place until the light screen system has been checked
When the receiver is configured for Latch Output, the outputs
out. This may require lockout/tagout procedures (refer to
are ON only when all beams are clear and after a manual
OSHA1910.147, ANSI Z244-1, or the appropriate standard
reset (see Section 1.4.7). If a reset routine can cause a Clear
for controlling hazardous energy). These connections will be
(RUN) condition, optimize the alignment as described in step 4.
made after the initial checkout procedure has been successfully
If a Clear (RUN) condition can not be achieved, see “Blocked
completed.
condition” below.
Verify that:
•Powerhasbeenremovedfrom(orisnotavailableto)the
guarded machine, its controls or actuators; and
•ThemachinecontrolcircuitortheInterfaceModuleisnot
connected to the OSSD outputs at this time (permanent
connections will be made later); and
•EDMisconfiguredforNoMonitoring,perSection3.3.2.
3.4.1 Initial Power-Up and Optical Alignment
1. Inspect the area near the light screen for reflective
surfaces, including work pieces and the guarded machine.
Reflective surfaces may cause light beams to reflect around
a person in the light screen, preventing the person from being
detected and not stopping the machine motion. See Section
3.1.6.
Eliminate the reflective surfaces as possible by relocating
them, painting, masking or roughening them. Remaining
problem reflections will become apparent during step 5.
2. Verify that power is removed from the EZ-SCREEN
System and from the guarded machine and that the OSSD
safety outputs are not connected. Remove all obstructions
from the light screen.
•A Clear (RUN) condition (receiver) – the System Status
indicator ON Green (or flashing Green if Reduced Resolution
is enabled), and the Reset indicator ON Yellow. All Zone
indicators ON Green.
To optimize alignment and maximize excess gain, slightly
loosen the sensor mounting screws (x4) and rotate one sensor
left and right, noting the positions where the Status indicators
turn Red (Blocked condition); repeat with the other sensor
(see Figure 3-11). Center each sensor between those two
positions and tighten the end cap mounting screws, making
sure to maintain the positioning as the screws are tightened.
The sensor lenses should directly face each other. Proceed
to System Configuration (Section 3.4.2) once optimum optical
alignment is verified.
•A Blocked condition (receiver) is indicated by the System
Status indicator ON Red, the yellow Reset indicator ON, and
one or more Zone indicator(s) ON Red, identifying the location
of the blocked beams, and the number of blocked beams will
be displayed. Proceed to step #4.
NOTE: If beam 1 is blocked, Zone indicator 1 will be Red and all
others will be OFF. Beam 1 provides the synchronization
signal.
NOTE: If the Test input is open, the 3-digit Diagnostic Display
will indicate the total number of beams in the system
(minus one) and all Zone indicators will be Red.
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EZ-SCREEN
Instruction Manual
Installation and Overview
Alignment
4. Optical Alignment
CAUTION: Ensure that no individuals are exposed to any
hazard if the EZ-SCREEN receiver turns ON the
OSSD outputs when the System becomes aligned.
Straight Edge
All
OFF
Verify sensor mounting per Section 3.2.
Straight Edge
Verify Optimal Alignment (Rotational Adjustment with power
ON)
a. Ensure the emitter and receiver are pointed squarely
at each other. A straight edge (e.g., a level) can determine
the direction the sensor is facing (see Figure 3-11). The
sensor face must be perpendicular to the optical axis.
C1 or C2
a.
CH1
b.
c. If the Green Status and Yellow Reset indicators are
ON, go to step “d”. If not, rotate each sensor (one at a
time) left and right until the Green Status indicator comes
ON. As the sensor rotates out of alignment, the Red Status
indicator will come ON steady. As more beams are made,
the Zone indicators will turn from Red to Green and the
number of blocked beams displayed will decrease.
NOTE: If the Emitter’s Test input is open, the 7-segment
display will indicate the total number of beams
(minus one) in the System and all Zone indicators
will be Red (except for 10-beam systems, where the
Zone 1 indicator will be Green).
d. To optimize alignment, note the position where the Red
Status indicator comes ON when the sensor is rotated both
left and right. Center the sensor between the two positions,
and tighten the end cap mounting screws, making sure
the positioning does not drift as the screws are tightened.
Repeat for second sensor.
For situations where alignment is difficult, a LAT-1-SS
Laser Alignment Tool can be used to assist or confirm
alignment by providing a visible red dot along the sensor’s
optical axis (see Figure 3-13).
e. If, at any time, the Red Status indicator begins to flash
steadily, the System has entered a Lockout condition. See
Section 5.1.1 for further information.
Optical Alignment Procedure with Mirrors
EZ-SCREEN sensors may be used with one or more corner
mirrors for guarding more than one side of an area. The
MSM... and SSM-... rear-surface glass mirrors are rated at 85%
efficiency. Thus, excess gain and sensing range are reduced
when using mirrors; see Section 3.1.7.
OFF
ON Red
OFF
NOTE: At power-up, all indicators are tested (flash), then
the Scan Code is displayed.
b. If Channel #1 beam is not aligned, the Status and
Zone 1 indicators are Red and the Diagnostic Display
indicates “CH1”. Zone indicators 2-8 will be OFF.
OFF
# Beams
Blocked
c.
ON Red
or
Green
Yellow Red
Dash
d.
ON
Green
Yellow
e.
Green
Flashing
Error
Code
All
OFF
OFF
Flashing
Red
Figure 3-11. Optimum optical alignment
In addition to the standard optical alignment procedure, verify
(see Figure 3-12):
•Thattheemitter,receiver,andallmirrorsarelevelandplumb,
•Themiddleofthedefinedareaandthecenterpointofthe
mirrors are approximately the same distance from a common
reference point, such as the same height above a level floor.
Ensure that there are equal amounts of mirror surface above
and below the defined area such that the optical beams are
not passing below or above the mirror.
During any adjustments, allow only one individual to adjust any
one item at any one time.
NOTE: A LAT-1-SS Laser Alignment Tool is very helpful by
providing a visible red dot along the optical axis. See
Figure 3-13 and Banner Safety Applications Note SA104
(P/N 57477) for further information.
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EZ-SCREEN
Instruction Manual
Installation and Overview
Alignment
8. To teach the blanked beams, simply re-configure DIP
switches for normal operation (see Figure 4-1). Verify that
only the objects to be blanked are interrupting the defined
area. A lockout will occur if an object is moved or removed
after teaching.
9. Receiver indicates:
• Display:PFCONsolid(PFC=ProgramFixedBlanking
Complete)
• Zoneindicatorsflashapproximatelocationoffixed
blanked area programmed
• Resetindicatorsingle-flashingYellow
• Statusindicatorsingle-flashingRed
10. Perform a valid reset sequence (see Step 4) or cycle power.
11. To disable fixed blanking, follow this same procedure, but
remove all objects not to be blanked at Step 6.
With Power ON:
1. Position object(s) in the defined area.
2. Set RR and T/L switches as shown (do
not change SC2/SC1 or E1/E2 switch
positions).
1. Select the proper test piece (see table above), supplied with
the receiver.
2. Verify that the EZ-SCREEN is in RUN mode with the Green
Status indicator ON (or flashing if Reduced Resolution is
enabled), all Zone indicators are Green, and the Yellow
Status indicator ON. A manual reset may be required in Latch
mode (see Sections 4.2 and 4.3).
3. Pass the specified test piece through the defined area in
three paths: near the emitter, near the receiver, and midway
between the emitter and receiver (Figure 3-15).
4. During each pass, while the test piece is interrupting the
defined area, at least one Zone indicator must be Red. The
Red Zone indicator must change with the position of the
test piece within the defined area.
•Trip Output Operation: The Status indicator must turn Red
and remain Red for as long as the test piece remains in the
defined area. If not, the installation has failed the trip test.
•Latch Output Operation: The Status indicator must turn
Red and remain Red. The Yellow Reset indicator must
remain ON steady. If the Reset indicator begins to flash
at any time while the test piece is interrupting the defined
area, the installation has failed the trip test.
3. Press the Reset button or cycle power.
4. Reconfigure DIP switches for normal
operation.
5. Press the Rest button or cycle power.
NOTE: If the EDM wiring does not match the
switch position shown (E2), an EDM error
occurs and fixed blanking or cascade
configuration will not be allowed.
Test Piece
Figure 3-14. DIP switch configuration to teach fixed blanking
3.4.4 Trip Test
Emitter
After optimizing the optical alignment and configuring fixed
blanking and Reduced Resolution (if applicable), perform the
trip test to verify the detection capability of the EZ-SCREEN
System. This test will also verify correct sensor orientation
(Section 3.1.5), identify optical short circuits (Section 3.1.6), and
verify the expected resolution for applications using Reduced
Resolution (Section 3.4.2). Once the installation has passed
the trip test, the safety outputs may be connected and the
commissioning checkout may be performed (initial installations
only).
Receiver
Trip Test with Corner Mirror
Appropriate Test Pieces for Trip Test
Reduced
14 mm Resolution 30 mm Resolution
Resolution
Models
Models
OFF
14 mm (0.55") dia.
Model STP-13
30 mm (1.18") dia.
Model STP-14
ON (2-beam)
30 mm (1.18") dia.
Model STP-14
60 mm (2.36") dia.
Model STP-15
Receiver
Emitter
Cascaded systems: To test a cascaded system, each light
screen must be tested individually, while monitoring the status
indicator on the first receiver in the cascade.
Mirror #1
Figure 3-15. EZ-SCREEN trip test
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EZ-SCREEN
Instruction Manual
Installation
Overview and Alignment
WARNING . . . If Trip Test Indicates a
Problem
3.5 Electrical Interface to the Guarded Machine
Permanent Hookup
If the EZ-SCREEN System does not respond properly to the
trip test, do not attempt to use the System.
Make the electrical connections as described in Sections 3.5.1 to
3.5.4 as required by each individual application.
If this occurs, the EZ-SCREEN cannot be relied on to stop
dangerous machine motion when a person or object enters the
defined area.
Lockout/tagout procedures may be required (refer to OSHA
1910.147, ANSI Z244-1, or the appropriate standard for
controlling hazardous energy). Follow relevant electrical
standards and wiring codes, such as the NEC, NFPA79 or IEC
60204-1. See the warning in Section 3.3.
Serious bodily injury or death could result.
If all Zone indicators turn Green or fail to follow the position
of the test piece while it is within the defined area, the
installation has failed the trip test. Check for correct sensor
orientation, reflective surfaces and unguarded areas created
due to the use of Blanking. Do not continue until the situation is
corrected.
When the test piece is removed from the defined area, in Trip
Output Operation, the Status indicator must turn ON Green (or
flash Green, if Reduced Resolution is enabled). In Latch Output
Operation, the Status indicator will remain Red until a manual
reset is performed (the Yellow Reset indicator will be flashing).
If mirrors are used in the application: Test the defined area
on each leg of the sensing path (e.g. emitter to mirror, between
mirror and receiver, see Figure 3-15).
If the EZ-SCREEN System passes all three checks during the
trip test, go on to Section 3.5.
Supply power and the external reset switch should already be
connected. The EZ-SCREEN must also have been aligned and
passed the Initial Checkout, as described in Section 3.4.
The final connections to be made are:
•OSSDoutputs
•FSDinterfacing
•MPCE/EDMconnections
•OptionalremoteTest
WARNING . . . Interfacing of Both OSSDs
Both of the OSSD (Output Signal Switching Device) outputs
must be connected to the machine control so that the machine’s
safety-related control system interrupts the circuit to the machine
primary control element(s), resulting in a non-hazardous condition.
Never wire an intermediate device(s) (e.g., PLC, PES, PC)
that can fail in such a manner that there is the loss of the
safety stop command, OR in such a manner that the safety
function can be suspended, overridden, or defeated, unless
accomplished with the same or greater degree of safety.
WARNING . . . OSSD Interfacing
To ensure proper operation, the EZ-SCREEN OSSD output
parameters and machine input parameters must be considered
when interfacing the EZ-SCREEN solid-state OSSD outputs to
machine inputs.
Machine control circuitry must be designed so that the maximum
load resistance value is not exceeded and that the maximum
specified OSSD OFF-state voltage does not result in an
ON condition.
Failure to properly interface the OSSD outputs to the guarded
machine could result in serious bodily injury or death.
WARNING . . . Shock Hazard
Always disconnect all power from the EZ-SCREEN System
and the guarded machine before making any connections or
replacing any component. Use extreme caution to avoid electrical
shock at all times.
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EZ-SCREEN
Instruction Manual
3.5.1 OSSD Output Connections
Both the Output Signal Switching Device (OSSD) outputs must
be connected to the machine control so that the machine’s
safety-related control system interrupts the circuit or power to
the Machine Primary Control Element(s) (MPCE), resulting in a
non-hazardous condition.
Final Switching Devices (FSDs) typically accomplish this when
the OSSDs go to an OFF state. See Figure 3-21.
Refer to the output specifications in Section 2.7 and the warning
at left before making OSSD output connections and interfacing
the EZ-SCREEN System to the machine.
3.5.2 FSD Interfacing Connections
FSDs (Final Switching Devices) can take many forms, though
the most common are forced-guided, mechanically linked relays
or an interface module. The mechanical linkage between the
contacts allows the device to be monitored by the External
Device Monitoring circuit for certain failures.
Depending on the application, the use of FSDs can facilitate
controlling voltage and current that differs from the OSSD
outputs of the EZ-SCREEN. FSDs can also be used to control
an additional number of hazards by creating multiple safety stop
circuits.
Safety Stop Circuits
A safety stop allows for an orderly cessation of motion for
safeguarding purposes, which results in a stop of motion
and removal of power from the MPCEs (assuming this does
not create additional hazards). A safety stop circuit typically
comprises a minimum of two normally open (N.O.) contacts from
forced-guided, mechanically linked relays, which are monitored
(through External Device Monitoring) to detect certain failures
in order to prevent the loss of the safety function. Such a
circuit can be described as a “safe switching point.” Typically,
safety stop circuits are either single-channel, which is a series
connection of at least two N.O. contacts; or dual-channel, which
is a separate connection of two N.O. contacts. In either method,
the safety function relies on the use of redundant contacts to
control a single hazard (if one contact fails ON, the second
contact will arrest the hazard and prevent the next cycle from
occurring). See Figure 3-21.
The interfacing of the safety stop circuits must be accomplished
so that the safety function can not be suspended, overridden,
or defeated, unless accomplished in a manner at the same or
greater degree of safety as the machine’s safety related control
system that includes the EZ-SCREEN.
Installation and Overview
Alignment
The normally open safety outputs from an interface module
provide a series connection of redundant contacts that form
safety stop circuits for use in either single-channel or dualchannel control. (See Figure 3-23.)
Dual-Channel Control
Dual-channel control provides the ability to electrically extend
the safe switching point beyond the FSD contacts. With proper
monitoring (i.e., EDM), this method of interfacing is capable
of detecting certain failures in the control wiring between the
safety stop circuit and the MPCEs. These failures include a
short-circuit of one channel to a secondary source of energy or
voltage, or the loss of the switching ability of one of the FSD
outputs. Such failures could lead to the loss of redundancy —
or to a complete loss of safety, if not detected and corrected.
The possibility of a failure to the wiring increases as the
physical distance between the FSD safety stop circuits and
the MPCEs increase, as the length or the routing of the
interconnecting wires increases, or if the FSD safety stop
circuits and the MPCEs are located in different enclosures. For
this reason, dual-channel control with EDM monitoring should
be used in any installation where the FSDs are located remotely
from the MPCEs.
Single-Channel Control
Single-channel control uses a series connection of FSD
contacts to form a safe switching point. After this point in the
machine’s safety-related control system, failures can occur that
would result in the loss of the safety function (such as a shortcircuit to a secondary source of energy or voltage).
For this reason, single-channel control interfacing should be
used only in installations where FSD safety stop circuits and the
MPCEs are mounted within the same control panel, adjacent to
each other, and are directly connected to each other; or where
the possibility of such a failure can be excluded. If this can not
be achieved, then dual-channel control should be used.
Methods to exclude the possibility of these failures include, but
are not limited to:
•Physicallyseparatinginterconnectingcontrolwiresfromeach
other and from secondary sources of power.
•Routinginterconnectingcontrolwiresinseparateconduit,
runs, or channels.
•Locatingallelements(modules,switches,anddevicesunder
control) within one control panel, adjacent to each other, and
directly connected with short wires.
•Properlyinstallingmulti-conductorcablingandmultiplewires
through strain relief fittings. (Over-tightening of a strain-relief
can cause short-circuits at that point.)
•Usingpositive-openingordirect-drivecomponents,installed
and mounted in a positive mode.
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EZ-SCREEN
Instruction Manual
Installation
Overview and Alignment
3.5.3 Machine Primary Control Elements and EDM Inputs
A machine primary control element (MPCE) is an “electrically
powered element that directly controls the normal operation of
a machine in such a way that it is the last element (in time) to
function when machine operation is to be initiated or arrested”
(per IEC61496-1). Examples include motor contactors, clutch/
brakes, valves, and solenoids.
Depending on the level of risk of harm, it may be required to
provide redundant MPCEs or other control devices that are
capable of immediately stopping the dangerous machine motion,
irrespective of the state of the other. These two channels of
machine control need not be identical (i.e., diverse redundant),
but the stop time performance of the machine (Ts, used to
calculate the separation distance, see Section 3.3.1) must
take into account the slower of the two channels. Refer to
Figure 3-23 or consult the machine manufacturer for additional
information.
To ensure that an accumulation of failures does not compromise
the redundant control scheme (i.e., cause a failure to danger)
a method to verify the normal functioning of MPCEs or other
control devices is required. EZ-SCREEN provides a convenient
method for this verification: external device monitoring (EDM).
For the EZ-SCREEN external device monitoring to function
properly, each device must include a normally closed (N.C.),
forced-guided (mechanically linked) contact that can accurately
reflect the status of the device. This ensures that the normally
open contacts, used for controlling hazardous motion, have
a positive relationship with the normally closed monitoring
contacts and can detect a failure to danger (e.g., contacts that
welded closed or stuck ON).
It is strongly recommended that a normally closed, forcedguided monitoring contact of each FSD and MPCE be
connected to EDM inputs (see Figures 3-21 and 3-23). If this
is done, proper operation will be verified. Monitoring FSD and
MPCE contacts is one method of maintaining control reliability
(OSHA/ANSI) and Category 3 and 4 (EN954-1/ISO13849-1).
If monitoring contacts are not available or do not meet the
design requirement of being forced-guided (mechanically
linked), it is recommended to:
•Replacethedevicessothattheycapableofbeingmonitored,
or
•IncorporatetheEDMfunctionintothecircuitasclosetothe
MPCE as possible (e.g., monitor the FSDs),
and
•Employuseofwell-tried,tested,androbustcomponents,and
generally accepted safety principles, including fault exclusion,
into the design and installation to either eliminate, or reduce
to an acceptable (minimal) level of risk, the possibility of
undetected faults or failures that can result in the loss of the
safety function.
WARNING . . . EDM Monitoring
If system is configured for “no monitoring,” it is the user’s
responsibility to ensure that this does not create a hazardous
situation.
The principle of fault exclusion allows the designer to design
out the possibility of various failures and justify it through the
risk assessment process to meet the required level of safety
performance, such as the requirements of Category 2, 3 or 4.
See ISO 13849-1/-2 for further information.
External Device Monitoring
EZ-SCREEN provides three possible EDM configurations:
1-channel monitoring, 2-channel monitoring, and no monitoring.
Their functions are described below. The most common form
of EDM is 1-channel monitoring; its primary advantages are
simplicity of wiring and the ability to use the Auxiliary output.
The installation must prevent short circuits across the N.C.
monitoring contacts and to secondary sources of power. Twochannel monitoring has the ability to detect additional failures,
such as short circuits, and should be used when those failures
can not be designed out or reasonably be excluded. Twochannel monitoring is also the default setting and has the
advantage on additional diagnostic capability that can identify
which specific element that has slowed or failed.
External Device Monitoring Hookup
If not connected previously, it is again strongly recommended
that one normally closed, forced-guided monitoring contact
of each FSD and MPCE be wired as shown in the monitoring
circuit (see Figures 3-21 and 3-23). Pins 2 and 3 of the receiver
connector provide connection for the external device monitoring
input. External device monitoring (EDM) must be wired in
one of three configurations described below and this wiring
configuration must agree with the receiver’s EDM DIP switch
settings (see Section 4.2).
One-Channel Monitoring: This is a series connection of closed
monitor contacts that are forced-guided (mechanically linked)
from each device controlled by the EZ-SCREEN.The monitor
contacts must be closed before the EZ-SCREEN can be reset
and the OSSDs can turn ON. After a reset is executed and
the safety outputs (OSSDs) turn ON, the status of the monitor
contacts are no longer monitored and may change state.
However, the monitor contacts must be closed within
250 milliseconds of the OSSD outputs going from ON to OFF.
See Figure 3-16.
ON
Safety Output
EDM
OFF
Closed
Open
Don’t Care
Don’t Care
250 ms
Max.
Figure 3-16. One-channel EDM status, with respect to safety
output
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EZ-SCREEN
Instruction Manual
Installation and Overview
Alignment
Refer to Figure 3-23 for 1-channel EDM hookup. Connect the
monitor contacts between +24V dc and EDM1 (pin 3). Leave
EDM2 (pin 2) open (no connection). Set the configuration DIP
switch to E1, per Section 4.2.
NOTE: For EZ-SCREEN receivers with a date code prior to
0834, the monitoring contacts must open within 200
milliseconds of the OSSD outputs turning ON (a clear
condition) and must close within 200 milliseconds of the
OSSD outputs turning OFF (a blocked condition) or a
lockout will occur.
Two-Channel Monitoring: This is an independent connection
of closed monitor contacts that are forced-guided (mechanically
linked) from each device controlled by the EZ-SCREEN. The
monitor contacts must be closed before the EZ-SCREEN can be
reset and the OSSDs can turn ON. Regardless of the state of
the OSSDs, the monitor contacts may change state (either both
open, or both closed). If the monitor contacts remain in opposite
states for more than 250 milliseconds, a lockout will occur.
Safety Output
EDM 1
EDM 2
Don’t Care
Closed
Open
Closed
Open
250 ms
Max.
250 ms
Max.
Figure 3-17. Two-channel EDM, timing between channels
ON
Safety Output
EDM 1
EDM 2
OFF
Closed
Open
Closed
Open
Must Match EDM 2
Must Match EDM 2
Must Match EDM 1
Must Match EDM 1
Figure 3-18. Two-channel EDM status, with respect to safety
output
Refer to Figures 3-21 or 3-23 for 2-channel EDM hookup.
Connect the monitor contacts as shown between +24V dc and
EDM1 (pin 3) and between +24V dc and EDM2 (pin 2). Set the
configuration DIP switch to E2, per Section 4.2.
No Monitoring: Use this configuration initially, in order to
perform the initial checkout; see Section 3.6. If the application
does not require the EDM function, it is the user’s responsibility
to ensure that this configuration does not create a hazardous
situation.
Refer to Figure 3-22 for “no monitoring” hookup. To configure
the EZ-SCREEN for no monitoring, connect or jumper EDM1
(pin 3) to EDM2 (pin 2) using the supplied wire-nut. Set the
configuration DIP switch to E2, per Section 4.2.
An alternate method to configure no monitoring is to set the
configuration DIP switch to E1 (1-channel monitoring), per
Section 4.2, and connect EDM1 (pin 3) to +24V dc. This method
allows the ability to use the auxiliary output (see Section 3.5.5)
in applications that do not require the EDM function.
3.5.4 Optional Remote Test Input
A pair of connections is provided on 5-pin emitters (Test1 and
Test2) for the connection of an external remote test switch
(typically a normally open contact held closed). Opening this
switch “turns OFF” the emitter, simulating an interruption of the
light beams; all OSSD outputs will turn OFF. See Sections 2.7.2,
3.3.1, and Figure 3-20.
3.5.5 Auxiliary (Aux) Output
On EZ-SCREEN receivers with date code 0834 or newer,
an auxiliary status output is available that provides a PNP
current-sourcing output (75 mA max.) that mirrors the state of
the OSSDs. The output is on pin 2 (orange/black wire) when
the EDM configuration DIP switch is set to E1 (1-channel
monitoring), per Section 4.2. See the 1-channel EDM circuit on
Figure 3-23 for hookup information.
To use the auxiliary output in an application configured for no
monitoring, set the configuration DIP switch to E1 (1-channel
monitoring) per Section 4.2., and connect EDM1 (pin 3) to
+24V dc (see Section 3.5.3).
There are no compatibility issues retrofitting receivers with
aux output into earlier installations, if precautions are taken to
prevent EDM2 (pin 2, orange/black wire) from shorting to ground
or another source of energy.
NOTE: For EZ-SCREEN receivers with a date code prior to
0834, the monitoring contacts must always close within
200 milliseconds of the corresponding OSSD state
change (turning OFF) or a lockout will occur.
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EZ-SCREEN
Instruction Manual
Installation
Overview and Alignment
3.6 Preparing for System Operation
3.7 Sensor “Swapability” and the Optional Emitter Hookup
After the initial trip test has been accomplished, the OSSD
safety outputs and EDM connections have been made to the
machine to be controlled, the EZ-SCREEN is ready for testing in
combination with the guarded machine.
The operation of the EZ-SCREEN with the guarded machine
must be verified before the combined EZ-SCREEN and machine
may be put into service. To do this, a Qualified Person must
perform the Commissioning Checkout Procedure described
in Section 6.2.
Figure 3-16 illustrates an optional hookup that provides sensor
interchangeability (or “swapability”) – the ability to install either
sensor at either QD connection. To hook up an 8-pin QD emitter,
use only three conductors (Brown = +24V dc, Blue = 0V dc,
Green/Yellow = GND). Connect the remaining wires in a parallel
connection (color-for-color) to the receiver cable.
The resulting installation provides the ability to swap the emitter
and receiver position, similar to a popular feature of Banner
MACHINE-GUARD™, MINI-SCREEN® and MICRO-SCREEN®
safety light screens. This hookup option provides advantages
during installation, wiring, and troubleshooting.
8-wire Splitter Cordsets
Individual 8-wire Cordsets
Receiver
Emitter
Emitter
Receiver
QDE-8..D Cables
Bn
Or/Bk
Or
Wh
Bk
Bu
Gn/Ye
Vi
DEE2R..
+24 dc
EDM2 / Aux
EDM1
OSSD2
OSSD1
0V dc
Ground
Reset
See above or
Section 2.2
for pinout
CSB.. Splitter Cordset
Model CSB.. splitter cordsets and DEE2R.. double-ended cables allow easy
interconnection between an EZ-SCREEN receiver and emitter, providing a single
“homerun” cable for the optional “swapable” hookup (see Section 2.2 Cables).
Figure 3-19. Emitters and receivers interchange easily when 8-pin connectors are used for both (optional hookup)
Emitter (Standard)
8-pin male
Euro-style†
+24 dc
Emitter (with Test)
0V dc
5-pin male
Euro-style†
Bn (#1)
+24 dc
Gn/Ye (#7)
Bn (#1)
Bu (#6)
Gn/Ye (#5)
Bk (#5)
Wh (#4)
Vi (#8)
Or (#3)
Or/Bk (#2)
n.c.*
n.c.*
n.c.*
n.c.*
Bu (#3)
n.c.*
Wh (#2)
*NOTE: Pins 2, 3, 4, 5, and 8 are not connected, or are paralleled to
same color wire from the 8-pin receiver cable (see Section 3.7
and Figure 3-16).
0V dc
Bk (#4)
Jumper or
open to test
See Table 2.2 for further cable information.
†
Figure 3-20. Emitter; generic hookup
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EZ-SCREEN
Instruction Manual
Installation and Overview
Alignment
+24V dc
Receiver
8-pin male
Euro-style
face view†
Bn (Pin #1)
+24V dc
Gn/Ye (#7)
Ground
Bu (#6)
0V dc
Bk (#5)
OSSD1
Wh (#4)
OSSD2
Vi (#8)
Reset*
Or (#3)
EDM1
Or/Bk (#2)
EDM2
*Trip (auto reset) – Not connected
See Table 2.2 for further
QDE-8..D cable information.
0V dc
FSD
1
FSD
2
Single-Channel
Safety Stop
Circuit
†
Dual-Channel
Safety Stop
Circuit
NOTE: Do not exceed OSSD maximum load
capacitance specification.
Figure 3-21. Generic hookup – FSDs (2-channel EDM, manual reset)
+24V dc
Receiver
8-pin male
Euro-style
face view†
NOTE: EZ-SCREEN receiver DIP switches are configured
for “Trip” (T) output and 2-channel EDM (E2). If
the Auxiliary output is to be used, configure the
EZ-SCREEN receiver for 1-channel EDM (E1) and
connect pin #3 (Or) to +24V dc.
Bn (Pin #1)
+24V dc
Gn/Ye (#7)
Ground
Bu (#6)
0V dc
Bk (#5)
OSSD1
Wh (#4)
OSSD2
Vi (#8)
Reset*
Or (#3)
EDM1
Or/Bk (#2)
EDM2
*Trip (auto reset) – Not connected
0V dc
S1
Jumper
S
2
S
3
SC22-3
Safety Controller
A1 A1 A2 A2
See Table 2.2 for further
QDE-8..D cable information.
†
Figure 3-22. Generic hookup – self-checking Safety Module, Safety Controller, Safety PLC (no monitoring, automatic reset)
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EZ-SCREEN
Instruction Manual
Installation
Overview and Alignment
2-Channel EDM
+24V dc
Receiver
8-pin male
Euro-style
face view†
0V dc
Bn (Pin #1)
Gn/Ye (#7)
Bu (#6)
Bk (#5)
Wh (#4)
Vi (#8)
Or (#3)
Reset**
Or/Bk (#2)
* Installation of transient (arc) suppressors
across the coils of MPCE1 and MPCE2 is
recommended (see Warning).
IM-T-9A***
S3
** Trip (auto reset) – Not connected
interfacing modules and solutions
WARNING . . . Use of *** Other
available, see Section 2.3 or the
Transient Suppressors
If transient suppressors are
used, they MUST be installed
across the coils of the machine
control elements. NEVER install
suppressors directly across the
contacts of the IM-T-..A Module. It
is possible for suppressors to fail as a
short circuit. If installed directly across
the contacts of the IM-T-..A Module, a
short-circuit suppressor will create an
unsafe condition.
†
S1
K2
K1
S4
S2
Banner Safety Catalog.
Y3
Y4
See Table 2.2 for further QDE-8D cable
information.
Y1
Y2
13
14
23
24
MPCE
2
33
34
*
Machine
Control
MPCE
1
*
Feedback (optional)
1-Channel EDM
+24V dc
Receiver
8-pin male
Euro-style
face view†
0V dc
Bn (Pin #1)
Gn/Ye (#7)
Bu (#6)
Bk (#5)
Wh (#4)
Vi (#8)
Or (#3)
Or/Bk (#2)
* Installation of transient (arc) suppressors
across the coils of MPCE1 and MPCE2 is
recommended (see Warning).
Reset**
Aux. out
+
IM-T-9A***
S3
** Trip (auto reset) — Not connected
S1
K2
** Trip (auto reset) – Not connected
* Installation of transient (arc) suppressors across the coils
*** Other
interfacing modules and solutions
of MPCE1 and MPCE2 is recommended (see
WARNING).
available, see Section 2.3 or the
Banner Safety Catalog.
†
*** Other interfacing modules and solutions available,
seefor further QDE-8D cable
See Table 2.2
Section 2.3 or the Banner Safety Catalog. information.
† See Table 2.2 for further QDE-8D cable information.
Machine
Control
K1
S4
S2
Y3
Y4
Y1
Y2
13
14
23
24
MPCE
2
33
34
*
MPCE
1
*
Feedback (optional)
Figure 3-23. Generic hookup – Interface Module (1-Channel or 2-Channel EDM, manual reset)
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EZ-SCREEN
Instruction Manual
System Overview
Operation
4. System Operation
4.1 Security Protocol
Certain procedures for installing, maintaining and operating the
EZ-SCREEN system must be performed by either Designated
Persons or Qualified Persons.
A Designated Person is identified and designated in writing,
by the employer, as being appropriately trained and qualified to
perform system resets and the specified checkout procedures on
the EZ-SCREEN System. The Designated Person is empowered
to:
•Performmanualresetsandholdpossessionoftheresetkey
(see Section 4.3), and
•PerformtheDailyCheckoutProcedure(seeSection6).
A Qualified Person, by possession of a recognized degree or
certificate of professional training, or by extensive knowledge,
training and experience, has successfully demonstrated the
ability to solve problems relating to the installation of the
EZ-SCREEN System and its integration with the guarded
machine. In addition to everything for which the Designated
Person is empowered, the Qualified Person is empowered to:
•InstalltheEZ-SCREENSystem,
•Performallcheckoutprocedures(seeSection6),
•Makechangestotheinternalconfigurationsettings,and
•ResettheSystemfollowingaLockoutcondition.
4.2 System Configuration Settings
If not previously configured, System settings are made on the
configuration panels located on each sensor, behind the access
cover. The access cover is opened by first removing the factoryinstalled security plate with the security hex wrench provided. It
is recommended that the security plate be re-installed after any
configuration changes. See Figure 4-1.
Because it has redundant microprocessors, the receiver has
two DIP switch banks (bank A and bank B) which must be
set identically (see Section 4.2). Failure to do so will cause
a Lockout condition when power is applied. Power to the
EZ-SCREEN receiver should be OFF when changing DIP
switch settings or a Lockout will occur.
After configuration settings are verified/set, the access cover
must be fully closed (snap shut) to maintain IP ratings. Other
than Scan Code, all configuration settings should be
changed only when the System is OFF.
NOTE: The corresponding pairs of DIP switches must be set
identically for the System to operate.
Scan Code is used to allow operation of multiple pairs of
emitters and receivers in close proximity (see Sections 3.1.8 and
1.4.4). Scan Code may be set to 1 or 2, using the switch on the
configuration panel. The Scan Code setting for each emitter must
agree with its corresponding receiver. The Scan Code settings
may be changed while in RUN mode without causing a Lockout.
Trip or Latch Output operation is selected on two DIP switches
in the receiver configuration port; see Figure 4-1. Both switches
must be set to the same setting. If they have different settings,
an error code will be displayed.
If the switches are set for Trip Output (T), the System will autoreset. If the switches are set for Latch Output (L), the System will
require a manual reset.
External Device Monitoring (EDM)/Aux. Output: EDM mode is
selected via a 2-position DIP switch in the receiver configuration
port; see Figure 4-1. For 1-Channel Monitoring, set the EDM
DIP switch to the E1 position. For 2-Channel Monitoring or No
Monitoring, set the switch to the E2 position. See Section 3.5.3
for more information. When 1-Channel Monitoring is selected, an
aux. output is available; see Section 1.4.3.
Reduced Resolution: Two-beam Reduced Resolution can be
enabled by selecting “RR” on both DIP switches as labeled.
NOTE: Enabling Reduced Resolution will affect the Minimum
Separation Distance, see Section 3.1.1.
Scan Code 1 or 2 (SC1)*
Bank A
Trip or Latch Output (Trip Output)*
Reduced Resolution (OFF)*
Invert Display Push Button
Bank B (Identical to Bank A)
EDM (2-channel)* / Aux. Output
*(Default Setting)
See Figure 4-2 for access cover
opening instructions
NOTE: If the EDM wiring does not match
the switch position shown (E2), an
EDM error occurs and fixed blanking
or cascade configuration will not be
allowed.
Figure 4-1. EZ-SCREEN configuration switches (receiver shown)
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EZ-SCREEN
Instruction Manual
System
Operation
Overview
• ••••••• • ••• ••• • • • • • ••••• • •• •• ••••••••••••••••••••••••••••••••••
To open the access cover for DIP switch configuration:
1. Remove the security plate using the special tool supplied.
2. Using a small flat blade screwdriver or the security plate tool,
push the plastic tab on the access cover inwards at a 45°
angle.
3. Pivot the screwdriver against the bevel until the access cover
pops open.
4. To close the access cover, simply push cover into place (it will
“snap” into place). The access cover has been designed to be
removable, so if it should come off, simply snap it back onto
the hinge and close it.
5. If required, replace the security plate with tamper-resistant
screws provided, using the same supplied tool.
It is important to snap-close the cover to maintain the sensors’
IP 65 environmental rating. In the event an access cover is lost
or damaged, it can be re-ordered (see Section 2.5, Replacement
Parts). It is recommended for installations subject to shock and
vibration, that the security plate be reinstalled.
4.3 Reset Procedures
Resetting the System
System resets are performed using an external reset switch.
This switch must be located outside the guarded area, and must
not be within reach from within the guarded area (see Section
3.1.3). Its location should provide a clear view of the entire
safeguarded area. If any hazardous areas are not in view from
the switch location, additional means of safeguarding must be
provided. The switch should be protected from accidental or
unintended actuation (e.g., through the use of rings or guards).
If supervisory control of the reset switch is required, a key
switch may be used, with the key kept in the possession of a
Designated or Qualified Person. Using a key switch will also
provide some level of personal control, since the key may be
removed from the switch. This will hinder a reset while the key
is under the control of an individual, but must not be relied upon
solely to guard against accidental or unauthorized reset. Spare
keys in the possession of others or additional personnel entering
the safeguarded area unnoticed may create a hazardous
situation.
Receiver Resets
The EZ-SCREEN receiver has a Reset input, pin 8 (Violet wire),
that allows the System to be manually reset.
1. Remove Security Plate
The EZ-SCREEN requires a manual reset to clear a Latch
condition and resume operation following a stop command.
Internal Lockout conditions also require a manual reset to return
the System to RUN mode after the failure has been corrected
and the input correctly cycled.
Receiver manual resets are required in the following
situations:
•Trip Output operation – only after a System Lockout (see
Section 5 for causes).
•Latch Output operation – at power-up, after each Latch
condition occurs, and after a System Lockout.
2. Open Access
Cover
Reset Routine
To reset the receiver, close the reset switch for 1/4 to 2 seconds,
then open the switch. (If reset switch model MGA-KS0-1, listed
in Section 2, is used, turn the key 1/4 turn clockwise to close;
turn counterclockwise, back to its original position, to open.)
NOTE: Closing the reset switch too long will cause the System
to ignore the reset request; the switch must be closed
from 1/4 second to 2 seconds, but no longer.
Emitter Resets
Figure 4-2. Accessing the configuration switches
In the rare occurrence that an emitter requires a reset, power
the sensor down, then power it up. Emitter resets are needed
only if a Lockout occurs.
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EZ-SCREEN
Instruction Manual
System Overview
Operation
4.4 Status Indicators
A variety of status indicators are clearly visible on each emitter
and receiver front panel (see Figure 1-3 and Section 3.4.1,
steps #3 and #4), and Section 7.7 (cascadeable models only).
Display indicates the receiver’s Trip (–) or Latch (L) configuration
setting and displays a specific error code when the receiver is in
Lockout. The 7-segment display also momentarily indicates the
Scan Code setting at power-up or when changed.
Operating
Status
Emitter: A single bi-color Red/Green Status indicator shows
whether power is applied, and whether the emitter is in RUN
mode, optional TEST mode, or Lockout status. A 7-segment
Diagnostic Display indicates a specific error code when the
emitter is in Lockout; the display also momentarily indicates the
Scan Code setting at power-up or when changed.
Operating
Mode
Required
Event
Reset
Indicator
Status
Indicator
Status
Indicator
Diagnostic Display
Scan code flash 3x –
alternates
Receiver: Bi-color Red/Green Zone indicators show whether a
section of the defined area is aligned and clear, or is blocked
and/or misaligned. A Yellow Reset indicator shows when the
System is in RUN mode or is waiting for a reset. There are 8
Zone indicators for all model lengths, each of which indicates
Blocked/Clear conditions for approximately 1/8 of the total light
screen.
A bi-color Red/Green Status indicator shows when the OSSD
outputs are ON (Green) or OFF (Red), or the System is in
Lockout status (flashing Red). A 3-digit 7-segment Diagnostic
Required
Event
Power-up
Apply
power
Red singleflash
Run Mode
Passes
internal
tests
Green
Dash
Test Mode
Open Test
switch
Flashing
Green
Dash
Lockout
Internal/
external
fault
Flashing
Red
Displays error code (see
Section 5.1)
then
or
then
Figure 4-3. Emitter status indicator operation
Zone
Indicators*
OSSD
Outputs
Diagnostic Displays
Scan code flash 3x –
alternates
Power-up
Apply
power
OFF
SingleFlash Red
All SingleFlash Red
Alignment Mode –
Beam 1 Blocked
Pass
internal
tests
OFF
OFF
Zone 1 Red*
Others OFF
Alignment Mode –
Beam 1 Clear
Align
Beam 1
ON
Red
Zone 1 Green
Others Red or
Green
Run Mode –
Clear
Align all
beams
ON
ON or
Flashing
Green†
All ON Green
Run Mode –
Blocked
Beam(s)
blocked
ON
Red
Red or Green*
Noise Detected –
Reset Interface
Noise Detected –
EDM Interface
Lockout
Internal/
external
fault
OFF
Flashing
Red
All OFF
then
or
then
OFF
OFF
Total number of blocked beams
OFF
OFF
OFF
Total number of blocked beams
ON
OFF
Flashing
Continues
previous
reading
Continues
previous
reading
Continues
previous
reading
Continues
previous
reading
Flashing
Displays error code (see Section 5.1)
OFF
* NOTE: If beam 1 is blocked, Zone indicators 2-8 will be OFF, because beam 1 provides the synchronization signal for all the beams.
†
Flashing if Reduced Resolution is enabled.
Figure 4-4. Receiver status indicator operation (Trip Output configured)
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43
EZ-SCREEN
Instruction Manual
System
Operation
Overview
Operating
Mode
Required
Event
Reset
Indicator
Status
Indicator
Zone
Indicators*
OSSD
Outputs
Diagnostic Displays
Scan code flash
3x – alternates
Power-up
Apply power
OFF
SingleFlash Red
All
Single-Flash
Red
Alignment Mode –
Beam 1 Blocked
Pass internal
tests
OFF
OFF
Zone 1 Red*,
Others OFF
Alignment Mode –
Beam 1 Clear
Align
Beam 1
ON
Red
Beam 1 Green,
others Red or
Green
Alignment Mode –
All Beams Clear
Align
all beams
DoubleFlash
Red
All ON Green
OFF
OFF
OFF
Run Mode –
Clear
Perform
reset
ON
All ON Green
OFF
OFF
ON
Latched – Blocked
Beam 1 Blocked
Block
Beam 1
ON
Red
Red or Green*
Latched – Blocked
Beam 1 Clear
Block 1 or
more beams
ON
Red
Red or Green*
Latched – Clear
Clear all
beams
Flashing
Red
All ON Green
ON or
Flashing
Green†
Noise Detected –
Reset Interface
Noise Detected –
EDM Interface
Lockout
Internal/
external fault
OFF
Flashing
Red
OFF
then
or
then
OFF
OFF
Total number of blocked beams
OFF
OFF
Total number of blocked beams
OFF
OFF
OFF
Flashing
Continues
previous
reading
Continues
previous
reading
Continues
previous
reading
Continues
previous
reading
Flashing
Displays error code (see Section 5.1)
OFF
OFF
* NOTE: If beam 1 is blocked, Zone indicators 2-8 will be OFF, because beam 1 provides the synchronization signal for all the beams.
†
Flashing if Reduced Resolution is enabled.
Figure 4-5. Receiver status indicator operation (Latch Output configured)
Inverted Display
For applications that require the emitter and receiver to be
inverted (with the status indicator ends at the “top”), the
7-segment displays on EZ-SCREEN emitters and receivers
can be inverted for easy reading. Press the Invert Display push
button, located next to the DIP switches, under the access cover
(Figure 4-6). A single momentary push is required; if pressed too
long (longer than 1/2 second), the display will not invert.
A spare access cover with inverted label and an inverted label
for the display are provided in the hardware packets for each
emitter and receiver (or see Section 2.5 Replacement Parts).
Remove the standard access cover by removing the screw-on
security plate and gently pulling the cover out. Place the inverted
label over the existing label on the display (adjacent to the DIP
switches) and snap the inverted-label access cover into place;
replace screw-on security plate if desired.
Figure 4-6. Inverted display showing the number 10 and the
inverted label
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EZ-SCREEN
Instruction Manual
System Overview
Operation
Status Indicators for Cascaded Applications
When multiple light screens are cascaded, some
unique indications may occur, as indicated in
Figure 4-7 and in the table at right.
When a receiver’s CSSI input is in a Stop
condition (because of a blocked light screen
further upstream in the cascade, or because of a
Stop signal from an E-stop button, for example),
the display on the downstream receivers, including
the master receiver, will be bracketed by a pair
of vertical “goalposts.” See Section 5.1.1 for an
illustration.
EZ-SCREEN Cascade Diagnostics
Condition
OSSDs
Reset
Indicator
Status
Indicator
Receiver #1 (Master)
Clear
ON
L
ON
Green
CSSI Stop (Receiver
OFF
|– – –|
ON
Red
Latch
OFF
L
Flashing
Red
#2, 3, or 4 is blocked)
Receiver #2, 3, or 4
Clear
ON
–
ON
Green
Blocked
OFF
# Beams blocked
ON
Red
CSSI Stop (Receiver
OFF
|– – –|
ON
Red
Cleared
ON
–
ON
Green
upstream is blocked)
Cascade Powered Up
Clear
Display
Object is Blocking
Light Screen #4
Object is Blocking
Light Screen #3
Object Has Been Removed;
Cascade is Waiting for Reset
Config: Trip
Config: Trip
Config: Trip
Config: Trip
Display: •
Display: # beams
blocked
Display: •
Display: •
OSSDs: ON
OSSDs: ON
OSSDs: OFF
Reset: ON
Reset: ON
Status: Green
Reset: ON
Status: Green
Status: Green
Config: Trip
Config: Trip
Config: Trip
Config: Trip
Display: •
Display:• - - -•
Display: •
OSSDs: ON
OSSDs: OFF
Display: # beams
blocked
Reset: ON
Reset: ON
OSSDs: OFF
Reset: ON
Status: Green
Status: Red
Reset: ON
Status: Green
OSSDs: ON
Reset: ON
Status: Red
OSSDs: ON
Status: Red
Config: Trip
Config: Trip
Config: Trip
Config: Trip
Display: •
Display:• - - -•
Display:• - - -•
Display: •
OSSDs: ON
OSSDs: OFF
OSSDs: OFF
OSSDs: ON
Reset: ON
Reset: ON
Reset: ON
Reset: ON
Status: Green
Status: Red
Status: Red
Status: Green
Config: Latch
Config: Latch
Config: Latch
Config: Latch
Display: L
Display:• - - -•
Display:• - - -•
Display: L
OSSDs: ON
OSSDs: OFF
OSSDs: OFF
OSSDs: OFF
Reset: ON
Reset: ON
Reset: ON
Reset: Flashing*
Status: Green
Status: Red
Status: Red
Status: Red
* Waiting for reset
Figure 4-7. Cascade indicator status conditions
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EZ-SCREEN
Instruction Manual
System
Operation
Overview
4.5 Normal Operation
System Power-Up
The EZ-SCREEN will power up in one of two ways, depending
on the Trip/Latch Output configuration. If it is set for Trip Output,
it will power up and reset automatically; if it is set for Latch
Output, it will require a manual reset procedure after power-up
and sensor alignment.
Trip Output Power-Up: When power is applied, each sensor
will conduct self-tests to detect critical internal faults, determine
configuration settings, and prepare the EZ-SCREEN for
operation. (If either sensor detects a critical fault, scanning
ceases, the receiver outputs remain OFF and diagnostic
information is displayed through the sensor’s front window.) If
no faults are detected, the EZ-SCREEN will automatically enter
ALIGNMENT mode, with the receiver looking for an optical sync
pattern from the emitter. If the receiver is aligned and receiving
the proper sync pattern, it enters RUN mode and begins
scanning to determine the blocked or clear status of each beam.
No manual reset operation is required.
Latch Output Power-Up: When power is applied, each sensor
will conduct self-tests to detect critical internal faults, determine
configuration settings, and prepare the System for operation.
(If either sensor detects a critical fault, scanning ceases, the
receiver outputs remain OFF and diagnostic information is
displayed through the sensor’s front window.) If no faults are
detected, the EZ-SCREEN will automatically enter ALIGNMENT
mode, with the receiver looking for an optical sync pattern from
the emitter. If the receiver is aligned and receiving the proper
sync pattern, it begins scanning to determine the blocked
or clear status of each beam. When all beams are aligned,
the Yellow Reset indicator will double-flash to indicate the
EZ-SCREEN is waiting for a manual reset. After a valid manual
reset, the EZ-SCREEN enters RUN mode and continues
scanning.
During RUN Mode
Trip Output Configuration: If any beams become blocked
while the EZ-SCREEN is running with Trip Output selected,
the receiver outputs turn OFF within the stated EZ-SCREEN
response time (see Specifications). If all the beams then become
clear, the receiver outputs come back ON. No resets of any kind
are needed. All required machine control resets are provided by
the machine control circuit.
Latch Output Configuration: If any beams become blocked
while the EZ-SCREEN is running with Latch Output selected,
the receiver outputs turn OFF within the stated EZ-SCREEN
response time (see Specifications). If all the beams then become
clear, the receiver Zone indicators will all be Green and the
Reset indicator will single-flash, indicating the EZ-SCREEN is
waiting for a manual latch reset. In Latch Output operation, the
outputs come back ON only when all beams are clear and after
a manual reset. The EZ-SCREEN will wait for a manual reset;
when a valid reset signal is received and all beams remain clear,
the receiver outputs turn ON.
Internal Faults (Lockouts): If either sensor detects a critical
fault, scanning ceases, the receiver outputs turn OFF and
diagnostic information is displayed through the sensor’s front
window. See Section 5 for resolution of error/fault conditions.
4.6 Periodic Checkout Requirements
To ensure continued reliable operation, the System must be
checked out periodically.
At every shift change, power-up and machine setup change,
the Daily checkout should be performed; this checkout may be
performed by a Designated or Qualified Person (see Section 6.3
and the Daily Checkout Card for the procedure).
Semi-annually, the EZ-SCREEN and its interface to the guarded
machine should be thoroughly checked out; this checkout must
be performed by a Qualified Person (see Section 6.4). A copy of
these test results should be posted on or near the machine.
Whenever changes are made to the System (either a new
configuration of the EZ-SCREEN or changes to the machine),
the Commissioning Checkout should be performed (see Section
6.2).
WARNING . . . Verify Proper Operation
It is the user’s responsibility to verify proper operation, on a regular
basis, as instructed in Section 6. Failure to correct such problems
can result in serious bodily injury or death.
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EZ-SCREEN
Instruction Manual
Troubleshooting and Maintenance
Overview
5. Troubleshooting and Maintenance
5.1 Troubleshooting Lockout Conditions
Evaluate status indicators per Section 4.4. See Section 5.2 for
Test mode indication.
A Lockout condition causes all of the EZ-SCREEN OSSD
outputs to turn or remain OFF, sending a stop signal to the
guarded machine. Each sensor provides diagnostic error codes
to assist in the identification of the cause(s) of lockouts (see
Sections 5.1.1 and 5.1.2 or the Diagnostic Error Code label
supplied in the documentation pack).
The System provides easy methods for determining operating
problems. A Lockout condition is indicated by the following:
Emitter
Status indicator
Diagnostic Display
Receiver
Reset indicator
Status indicator
Zone Indicators
Diagnostic Display
Flashing Red
Error code (flashing)
OFF
Flashing Red
OFF
Error code (flashing)
Recovery Procedures
To recover from a Lockout condition, all errors must be corrected
and a single sensor reset sequence must be performed as
described below.
Receiver Reset
Close the receiver Reset switch for 1/4 to 2 seconds and then
open the switch (per Section 4.3), or power the sensor down,
wait a second or two, then power it up.
NOTE: If the power down/up method is used and the
EZ-SCREEN is set for Latch Output, a manual reset,
as described in Section 4.3, is required to resume full
operation.
WARNING . . . Lockouts and Power
Failures
Power failures and Lockout conditions are indication of a problem
and must be investigated immediately by a Qualified Person.
Attempts to continue to operate machinery by bypassing
the EZ-SCREEN or other safeguards is dangerous and could
result in serious bodily injury or death.
WARNING . . . Shut Down Machinery
Before Servicing
The machinery to which the EZ-SCREEN is connected must
not be operating at any time during major service or
maintenance. This may require lockout/tagout procedures (refer
to OSHA1910.147, ANSI Z244-1, or the appropriate standard for
controlling hazardous energy). Servicing the EZ-SCREEN while
the hazardous machinery is operational could result in serious
bodily injury or death.
Advanced Diagnostics
In addition to the standard error codes (see Sections 5.1.1 and
5.1.2), the EZ-SCREEN has the ability to display advanced
diagnostic codes for the purpose of factory troubleshooting and
repair functions. These codes are generally not intended for field
troubleshooting by the EZ-SCREEN user.
These advanced codes have three digits (alternating
“Axx”/“Bxx”, where “xx” are two alpha-numeric characters);
they are displayed by holding the Reset input high (+24V dc)
or holding the Invert Display button down for five seconds
during a lockout condition. If the advanced diagnostic codes are
inadvertently displayed, simply hold the Invert Display button
down for 5 seconds to return to the standard error code display.
Emitter Reset
Power the sensor down, wait a second or two, and then power
it up.
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Troubleshooting
and Maintenance
Overview
EZ-SCREEN
Instruction Manual
5.1.1 Receiver Error Codes
Diagnostic
Display
Error Description
Cause of Error and Appropriate Action
Output Error
Error is caused by:
•oneorbothoutputsbeingshortedtoa
power supply (high or low),
•byshortingOSSD1toOSSD2,or
•byanoverload(greaterthan0.5A).
•DisconnecttheOSSDloadsandresetthereceiver.
•If the error clears, the problem is in the OSSD load(s) or in the load wiring.
•If the error continues with no load connected, replace the receiver.
Reset Input Error
This error occurs when the Reset switch
is closed (or the wiring is shorted to
+24V) during power-up.
•Verifythattheresetswitchisintheopenposition.
•ResetthereceiverperSection4.3.
•If the error remains, disconnect the reset wire at pin 8; cycle power.
• If the error clears, the problem is in the reset switch or in the wiring.
• If the error continues when the reset wire is disconnected, replace the receiver.
EDM Input Error
Can occur for the following reasons:
•EDMwiringconfigurationdoesnot
match the EDM switch configuration.
•NoconnectiontoEDMconnections.
•Both EDM inputs fail to respond within
250 ms of each other.
•ExcessivenoiseonEDMinputs.
•LooseQDconnection(s).
•VerifythattheEDMconfigurationswitchesaresetcorrectlyandthatthewiringis
correct for the EDM type configured (see Section 3.5.3).
•Resetthereceiver.
• If the error continues, remove power to the guarded machine, disconnect the
OSSD loads, disconnect the EDM input signals, configure EDM for No Monitoring
(Section 3.5.3) and conduct the Initial Checkout procedure in Section 3.4.
•If the error clears, the problem is in the external device contacts or wiring, or is
a response-time problem of the external devices. Verify that the EDM wiring is
correct and that the external devices meet the requirements described in Section
3.5.3.
•If the error continues, check for noise on the EDM inputs (see Section 5.3). If
error continues, replace the receiver
Receiver Error
This error can occur due to either
excessive electrical noise or an internal
failure.
•PerformaresetperSection4.3.
•If the error clears, perform a Daily Checkout procedure (per Section 6.3; Daily
Checkout Card) and if OK, resume operation. If the System fails the Daily
Checkout procedure, replace the receiver.
•If the error continues, check the ground connection (pin 7).
•If the sensor has a good earth ground connection to pin 7, perform the Initial
Checkout procedure (per Section 3.4).
•If the error clears, check the external connections and configuration settings.
• If the error continues, replace the receiver.
DIP Switch Error
This error can be caused by incorrect
DIP switch settings or by changes to the
DIP switch settings when the system
is ON.
•VerifythattheDIPswitchsettingsarevalid(perSection4.2).Makeanycorrections
necessary and perform a receiver reset.
•If the error occurred due to a change of the DIP switch settings while the System
was in Run mode, verify the switch settings and perform a receiver reset to resume
operation with the new switch settings and modified System configuration.
• If the error continues, replace the receiver.
EDM 1 Error
This error can occur due to EDM 1 input
signal failing to respond within 250 ms
of the OSSDs changing state (ON to
OFF).
•VerifythattheEDMwiringiscorrectandthattheexternaldevicesmeetthe
requirements described in Section 3.5.3.
•If the error continues, remove power to the guarded machine, disconnect the
OSSD loads, disconnect the EDM input signals, configure EDM for No Monitoring
(per Section 3.5.3) and conduct the Initial Checkout procedure in Section 3.4.
•If the error clears, the problem is in the External Device contacts or wiring, or is
a response-time problem of the external devices. Verify that the EDM wiring is
correct and that the external devices meet the requirements described in Section
3.5.3.
•If the error continues, check for noise on the EDM inputs (see Section 5.3).
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EZ-SCREEN
Instruction Manual
Troubleshooting and Maintenance
Overview
5.1.1 Receiver Error Codes (continued)
Diagnostic
Display
Error Description
Cause of Error and Appropriate Action
EDM 2 Error
EDM 2 configuration not valid (wiring or
switch).
•VerifythattheEDMwiringiscorrectandthattheexternaldevicesmeetthe
requirements described in Section 3.5.3.
• If the error continues, remove power to the guarded machine, disconnect the
OSSD loads, disconnect the EDM input signals, configure EDM for No Monitoring
(per Section 3.5.3) and conduct the Initial Checkout procedure (Section 3.4).
• If the error clears, the problem is in the External Device contacts or wiring, or is
a response-time problem of the external devices. Verify that the EDM wiring is
correct and that the external devices meet the requirements described in Section
3.5.3.
•If the error continues, check for noise on the EDM inputs (see Section 5.3).
Fixed Blanking Error
This error occurs when beam(s) that
have been blanked (programmed to
ignore a fixed object) become clear
when the object is removed or moved.
•Repositiontheobjectandperformakeyreset(orcyclepower).
•Re-program(teach)thefixedblankedobject(s),seeSection3.4.3.
Programming Timeout Error
This error occurs when the Fixed
Blanking programming mode (teach)
exceeds the ten-minute limit.
•Re-program(teach)thefixedblankedobject(s),seeSection3.4.3.
Cascade Configuration Error
This error occurs when the configuration
sequence is incorrectly followed,
receiver(s) 2, 3 or 4 are configured,
or receiver 1 is moved to a different
position in the cascade.
•TheCSSIInputchannel(s)areshortedtogetherortoanothersourceofpoweror
ground.
•ConfigureONLY the first receiver in the cascade (connected to the machine
interface). All other receivers must be set for 2-Ch. EDM (E2) and Trip Output (T),
see Section 7.7.
•Re-configurethefirstreceivertoadaptsystemtochangesorreplacementofother
receivers, see Section 7.7.
NOTE: In a cascaded system, all receivers are connected together, and all
emitters are connected together.
Excessive Noise Error –
Reset Interface
This error can occur due to excessive
levels of electrical noise.
Excessive Noise Error –
EDM Interface
This error can occur due to excessive
levels of electrical noise.
•PerformaresetperSection4.3.
•If the error clears, perform a Daily Checkout procedure (per Section 6.3; Daily
Checkout Card) and if OK, resume operation. If the System fails the Daily
Checkout procedure, replace the receiver.
•If the error continues, check the ground connection (pin 7).
• If the sensor has a good earth ground connection to pin 7, perform the Initial
Checkout procedure (Section 3.4).
•If the error clears, check for sources of electrical noise (see Section 5.3).
•If the error continues, replace the receiver.
Excessive Noise Error –
Cascade Input
This error can occur due to excessive
levels of electrical noise.
Flashing
Cascade Input Simultaneity
Operation of channels A and B
mismatch > 3 seconds.
•CheckoperationofChannelAandChannelBofcascadeinput.
•Cyclepowerorcycletheinput.SeeSections7.8and7.9.
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EZ-SCREEN
Instruction Manual
Troubleshooting
and Maintenance
Overview
5.1.2 Emitter Error Codes
Diagnostic
Display*
then
then
Error Description
Cause of Error and Appropriate Action
Emitter Error
This error can occur either due to
excessive electrical noise or due to an
internal failure.
•Resettheemitterbycyclingpowertotheemitter(seeSection4.3.2).
•If the error clears, perform a Daily Checkout procedure (Section 6.3) and if OK,
resume operation. If the System fails the Daily Checkout procedure, replace the
emitter.
• If the error continues, check the ground connection (see Section 2.3).
•If the sensor has a good earth ground connection, check for electrical noise (see
Section 5.3).
•If the error continues, replace the emitter.
Excessive Noise Error
This error can occur due to excessive
electrical noise.
•Resettheemitterbycyclingpowertotheemitter(seeSection4.3.2).
•If the error clears, perform a Daily Checkout procedure (Section 6.3) and if OK,
resume operation. If the System fails the Daily Checkout procedure, replace the
emitter.
•If the error continues, check the ground connection (see Section 2.3).
•If the sensor has a good earth ground connection, check for electrical noise (see
Section 5.3).
• If the error continues, replace the emitter.
*Emitter has only 1-digit display. Two-digit codes are displayed sequentially.
5.2 Test Mode (5-Pin Emitters only)
Emitter
If System can not be aligned or it will not go to a Green/
Clear condition, the emitter’s TEST input may be open.
When this occurs, the receiver Reset indicator is Yellow, all
Zone indicators will be Red or Green, and the system Status
LED will be Red; the 3-digit display will show a numerical value
equal to one less than the total number of beams. For example,
if an array has 50 beams total, the display would show 49. The
emitter’s Status indicator will flash Green. See Section 4.4 and
Figure 5-1. (However, on a 10-beam system only, the Zone 1
indicator will be Green, and all others Red.)
Opening a switch or relay contacts connected to the TEST1 and
TEST2 connections of the emitter, or supplying a voltage of less
than 3V dc to TEST1 only, simulates a Blocked condition, for
testing purposes.
Dash
Flashing Green
Receiver
Total number of beams
(less one)*
To verify proper operation, measure the voltage between TEST1
(pin 4, black) and dc COM (pin 3, blue) of the emitter:
•Ifthevoltageis10to30Vdc,theemittershouldbeinRun
mode and beam scanning should be occurring. If not, check
the +24V dc (pin 1, brown) to verify proper supply voltage.
If the supply voltage is not within the rated supply voltage
specifications, correct the supply voltage and recheck emitter
operation. If the supply voltage is correct, Test1 is 10 to 30V
dc and the emitter does not operate properly (RUN mode with
beam scanning). Replace emitter.
•Ifthevoltageislessthan3Vdc,theemittershouldbeinTest
mode and no scanning should be occurring. If not in Test
mode, replace emitter.
Yellow
Red
All Red (except for 10-beam systems,
where Zone 1 indicator will be Green)
*The 3-digit display will show a numerical value equal to one less than
the total number of beams. For example, if an array has 50 beams total,
the display would show 49.
Figure 5-1. TEST mode status indicators
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EZ-SCREEN
Instruction Manual
5.3 Electrical and Optical Noise
Troubleshooting and Maintenance
Overview
5.4 Servicing and Maintenance
The EZ-SCREEN is designed and manufactured to be highly
resistant to electrical and optical noise and to operate reliably
in industrial settings. However, serious electrical and/or optical
noise may cause a random Trip or Latch condition. In very
extreme electrical noise cases, a Lockout is possible. In order
to minimize the effects of transitory noise, the EZ-SCREEN
will respond to noise only if the noise is detected on multiple
consecutive scans.
Cleaning
If random nuisance Trips occur, check the following:
• Poorconnectionbetweenthesensorandearthground;
• Opticalinterferencefromadjacentlightscreensorother
photoelectrics; or
• Sensorinputoroutputwiresroutedtoocloseto“noisy”wiring.
EZ-SCREEN components are designed for reliability. Do not
open the emitter or receiver housings, other than to access for
configuration. They contain no field-replaceable components.
If repair is necessary, do not attempt to repair an emitter or
receiver yourself; return the unit to the factory.
Checking for sources of electrical noise: It is very important
that the light screen sensors have a good earth ground. Without
this, the System can act like an antenna and random Trips and
Lockouts can occur.
All EZ-SCREEN wiring is low voltage; running these wires
alongside power wires, motor/servo wires, or other high-voltage
wiring, can inject noise into the EZ-SCREEN system. It is good
wiring practice (and may be required by code) to isolate
EZ-SCREEN wires from high-voltage wires.
The Banner model BT-1 Beam Tracker (see Section 2.4) is
a very good tool for detecting electrical noise. It can be used
to detect electrical transient spikes and surges. Cover the
lens of the BT-1 with electrical tape to block optical light from
getting into the receiver lens. Press the “RCV” button on the
BT-1 and position the Beam Tracker on the wires going to the
EZ-SCREEN or any other nearby wires. Noise caused by the
switching of inductive loads should be addressed by installing
proper transient suppression across the load.
Checking for sources of optical noise: Turn off the emitter,
completely block the emitter, or open the Test input, then use
a Banner BT-1 Beam Tracker to check for light at the receiver.
Press the “RCV” button on the BT-1 and move it across the full
length of the receiver’s sensing window. If the BT-1’s indicator
lights, check for light from other sources (other safety light
screens, screens or points, or standard photoelectric sensors) by
“tracking down” the emitted light from them.
EZ-SCREEN emitters and receivers are constructed of
aluminum with a yellow painted finish and are rated IP65. Lens
covers are acrylic. Emitters and receivers are best cleaned
using mild detergent or window cleaner and a soft cloth. Avoid
cleaners containing alcohol, as they may damage the acrylic
lens covers.
Warranty Service
Should it become necessary to return an EZ-SCREEN
component to the factory, please do the following:
1. Contact the Banner Factory Application Engineering group at
the address or numbers listed below:
Banner Engineering Corp.,
Application Engineering Group
9714 Tenth Avenue North
Minneapolis, MN 55441
They will attempt to troubleshoot the system from your
description of the problem. If they conclude that a component
is defective, they will issue an RMA (Return Merchandise
Authorization) number for your paperwork, and give you the
proper shipping address.
2. Pack the component(s) carefully. Damage which occurs
during return shipping is not covered by warranty.
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EZ-SCREEN
Instruction Manual
Checkout
OverviewProcedures
6. Checkout Procedures
Study each procedure in its entirety, to understand each step
thoroughly before beginning. Refer all questions to the Banner
applications engineering department at the address or numbers
listed on the cover of this manual. Checkouts must be performed
as detailed in Section 6.1 below and results should be recorded
and kept in the appropriate place (e.g., near the machine, and/or
in a technical file).
6.1 Schedule of Checkouts
Trip Test: The procedure for EZ-SCREEN trip test is described
in Section 3.4.4. This procedure must be performed at
installation, and at any time the EZ-SCREEN, the guarded
machine, or any part of the application is installed or altered. The
procedure must be performed by a Qualified Person.
Commissioning Checkout: The procedure described in Section
6.2 must be performed at installation or whenever changes
are made to the System (either a new configuration of the
EZ-SCREEN or changes to the machine). The procedure must
be performed by a Qualified Person.
Shift/Daily Checkout: The procedure for “daily” checkout of the
EZ-SCREEN is described on the supplied Daily Checkout card
(Banner p/n 113361 for SLS.. models, P/N 118173 for SLSC..
models). Daily Checkout is to be performed at each shift change
or machine setup change, whenever the System is powered up
— at least daily. The procedure is listed on the Daily Checkout
card and may be performed by a Designated Person or a
Qualified Person.
Semi-Annual Checkout: The procedure for initial checkout of
the EZ-SCREEN System is to be performed every six months,
following installation. The procedure is listed on the Semi-Annual
Checkout card (Banner P/N 113362) and must be performed by
a Qualified Person.
6.2 Commissioning Checkout
Perform this checkout procedure as part of the EZ-SCREEN
installation (after it has been interfaced to the guarded
machine as described in Section 3.5), or whenever changes
are made to the System (either a new configuration of the
EZ-SCREEN or changes to the machine). A Qualified Person
(as defined in Section 4.1) must perform the procedure; checkout
results should be recorded and kept on or near the guarded
machine as required by applicable standards.
To prepare the System for this checkout:
1. Examine the guarded machine to verify that it is of a type and
design compatible with the EZ-SCREEN. See Section 1.2 for
a list of misapplications.
2. Verify that the EZ-SCREEN is configured for the intended
application (see Section 4.2).
3. Verify that the minimum separation distance from the closest
danger point of the guarded machine to the defined area is
not less than the calculated distance, per Section 3.1.1 of this
manual.
4. Verify that:
•Accesstoanydangerouspartsoftheguardedmachine
is not possible from any direction not protected by the
EZ-SCREEN, hard guarding, or supplemental safeguarding,
and
•Itisnotpossibleforapersontostandbetweenthedefined
area and the dangerous parts of the machine, or
•Supplementalsafeguardingandhardguarding,as
described by the appropriate safety standards, are in place
and functioning properly in any space (between the defined
area and any hazard) which is large enough to allow a
person to stand undetected by the EZ-SCREEN (see
Sections 3.1.2 and 3.1.4).
5. Verify that all reset switches are mounted outside and in full
view of the guarded area, out of reach of anyone inside the
guarded area, and that means of preventing inadvertent use
is in place (see Section 3.1.3).
6. Examine the electrical wiring connections between the
EZ-SCREEN FSD outputs and the guarded machine’s control
elements to verify that the wiring meets the requirements
stated in Section 3.5.
7. Inspect the area near the defined area (including work
pieces and the guarded machine) for reflective surfaces (see
Section 3.1.6). Remove the reflective surfaces if possible
by relocating them, painting, masking or roughening them.
Remaining problem reflections will become apparent during
the Trip Test in step 11.
8. Apply power to the EZ-SCREEN System. Verify that power to
the guarded machine is OFF. Remove all obstructions from
the defined area. If the EZ-SCREEN is configured for Manual
Power-Up, the Yellow Status indicator will be double-flashing.
Perform a manual reset (close the reset switch for 1/4 to 2
seconds, then open the switch).
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EZ-SCREEN
Instruction Manual
Checkout Procedures
Overview
9. Observe the Status indicators and the Diagnostic Display:
•Lockout: Status flashing Red
All others OFF
•Blocked: Status ON Red
One or more Zone indicators ON Red
Reset ON Yellow
•Clear:
Status ON Green*
All Zone indicators ON Green
Reset ON Yellow
•Latch:
Status ON Red
All Zone indicators ON Green
Reset flashing Yellow
(defined
area clear)
* The Green Status indicator will be flashing if Reduced Resolution is enabled.
10. A Blocked condition indicates that one or more of the beams
is misaligned or interrupted. To correct this situation see the
Alignment procedure in Section 3.4. If the system is in a
Latch condition, perform a manual reset.
11. Once the Green and Yellow Status indicators are ON,
perform the trip test (described in Section 3.4.4) on each
sensing field to verify proper System operation and to detect
possible optical short circuits or reflection problems. Do not
continue until the EZ-SCREEN System passes the trip
test. Do not expose any individual to any hazard during
the following checks.
WARNING . . . Before Applying Power to the
Machine
Verify that the guarded area is clear of personnel and unwanted
materials (such as tools) before applying power to the guarded
machine. Failure to do so could result in serious bodily injury
or death.
12. Apply power to the guarded machine and verify that the
machine does not start up. Interrupt (block) the defined area
with the appropriate supplied test piece (see table in Section
3.4.4) and verify that it is not possible for the guarded
machine to be put into motion while the beam(s) is blocked.
13. Initiate machine motion of the guarded machine and, while
it is moving, use the supplied test piece to block the defined
area. Do not attempt to insert the test piece into the
dangerous parts of the machine. Upon blocking any beam,
the dangerous parts of the machine should come to a stop
with no apparent delay.
Remove the test piece from the beam; verify that the
machine does not automatically restart, and that the
initiation devices must be engaged to restart the machine.
14. Remove electrical power to the EZ-SCREEN. Both OSSD
outputs should immediately turn OFF, and the machine
should not be capable of starting until power is re-applied to
the EZ-SCREEN.
15. Test the machine stopping response time, using an instrument
designed for that purpose, to verify that it is the same or
less than the overall system response time specified by the
machine manufacturer. (Banner’s applications engineering
department can recommend a suitable instrument.)
Do not continue operation until the entire checkout
procedure is complete and all problems are corrected.
WARNING . . . Do Not Use Machine Until
System Is Working Properly
If any of these checks cannot be verified, do not attempt to use
the EZ-SCREEN/guarded machine until the defect or problem
has been corrected (see Section 5).
Attempts to use the guarded machine under such conditions
could result in serious bodily injury or death.
6.3 Shift/Daily Checkout
Perform the procedure contained on the Daily Checkout card
at every shift change, power-up and machine set-up change.
During continuous machine run periods, this checkout
should be performed at intervals not to exceed 24 hours.
A Designated Person or Qualified Person (as defined in the
Safety Glossary) must perform the procedure. A copy of checkout
results should be recorded and kept in the appropriate place
(e.g., near or on the machine, in the machine’s technical file).
Refer to the procedure detailed on the Daily Checkout card
(Banner part number 113361 for SLS.. models, P/N 118173 for
SLSC.. models) in the lit packet included with the receiver. If the
Daily Checkout card is missing, contact Banner Engineering or
download at anner ngineering website.
6.4 Semi-Annual (Six-Month) Checkout
Perform the procedure contained on the Semi-Annual
Checkout card every six months following System
installation, or whenever changes are made to the System
(either a new configuration of the EZ-SCREEN or changes to
the machine).
A Qualified Person (as defined in the Safety Glossary) must
perform the procedure. A copy of checkout results should be
recorded and kept in the appropriate place (e.g., near or on the
machine, in the machine’s technical file).
Refer to the procedure contained on the Semi-Annual
Checkout card (Banner part number 113362) in the lit packet
included with the receiver. If the Semi-Annual Checkout card
is missing, contact Banner Engineering or download at
e
ngineering website.
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EZ-SCREEN
Instruction Manual
Cascadeable
Overview EZ-SCREEN
7. Cascadeable EZ-SCREEN†
7.1 Overview of Cascading
7.1.1 System Components and Specifications
EZ-SCREEN emitters and receivers are also available in
cascadeable models. These models can be used as standalone light screens, or can be cascaded up to four systems; see
Figure 7-1. The cascaded sensor pairs can be any length, any
number of beams, or have different resolutions
(i.e., 14 mm and 30 mm), as long as each emitter matches
its own receiver.
NOTE: EZ-SCREEN SLS models (with Inverted Display) can
be used as the end sensor pair. EZ-SCREEN Grid/
Point systems and PICO-GUARD systems can not be
interfaced with the Cascade Input.
The control reliability, installation and alignment, electrical
interface to the guarded machine, initial checkout, periodic
checkout, troubleshooting and maintenance features of
cascadeable models are functionally identical to those of the
standard models.
Electrical connections are made through M12 (or Euro-style)
quick-disconnects. The emitter has an 8-pin connector for power
and ground. Optional 5-pin emitters with Remote Test function
are available; see note at right.
The receiver has an 8-pin connector for power, ground, reset,
EDM #1 and #2, and OSSD #1 and #2. All systems in a cascade
are activating the same set of OSSD outputs, which are the
OSSDs of the master receiver.
NOTE: In a cascaded system, all receivers are connected
together, and all emitters are connected together.
A stand-alone cascadeable EZ-SCREEN system includes a
compatible emitter and receiver (equal length and resolution;
available separately or in pairs), a terminator plug for the
receiver and two single-ended (machine interface) cables.
A multiple-light screen cascaded EZ-SCREEN system includes
compatible emitter/receiver pairs (up to four), a terminator plug
for the last receiver in the cascade, two single-ended cables to
interface with the machine and provide power to the system, and
pairs of double-ended (sensor interface) cables to interconnect
the emitters and the receivers in the cascade.
The terminator plug must be used on the receiver in a standalone system, and on the last receiver in a multiple-system
cascade or, a QDE2R4-8..D cable interfaced with an E-stop or
other hard contacts (see Sections 7.8 and 7.9).
Available single-ended, double-ended, and splitter cables are
listed in Section 2.3. Cable lengths are limited – for both the
power cables and the interconnect cables; see Section 7.4 for
more information.
Important Note about Remote Test in Cascaded Emitters
If a cascaded system requires the Remote Test function (see
Section 1.4.4), then all emitters in the cascade must be 5-pin
emitter models (model SLSCE..-..Q5); the interconnection
between these cascaded emitters can only be accomplished
using 5-pin DEE2R-5..D cables.
7.1.2 Receiver Display
In Run mode, the 7-segment display will show:
Power press cross-section
Receivers only, shown
with EZA-MBK-21 “L”
mounting bracket
Clear condition
Latch Output operation
Trip Output operation
“L”
“–”
Blocked condition
Number of blocked beams
CSSI Input OFF or open
(e.g., “upstream” receiver
is blocked or in lockout)
“|– – –|” Solid (not flashing)
See Section 5.1.1 if any indication is flashing.
Figure 7-1. Multiple cascaded light screens used to guard two
areas of one machine
† U.S. Patent(s) issued or pending
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EZ-SCREEN
Instruction Manual
Cascadeable EZ-SCREEN
Overview
7.2 Cascadeable Emitter and Receiver Models – 14 mm Resolution
For cabling options, see Section 2.3.
Machine interface/power cables (one per end sensor, two per pair): Use QDE-..D cables.
Sensor interconnect cables (one per cascaded sensor, two per pair): Use DEE2R-..D cables.
14 mm Resolution Cascadeable Models
†
Defined Area
Height*
0.1 m to 6 m (4" to 20') range
Emitter (8-pin)
Receiver
Emitter/Receiver
Pair
Number of
Beams
Response
Time (Tr)
300 mm (11.8")
SLSCE14-300Q8
SLSCR14-300Q8
SLSCP14-300Q88
40
15 ms
450 mm (17.7")
SLSCE14-450Q8
SLSCR14-450Q8
SLSCP14-450Q88
60
19 ms
600 mm (23.6")
SLSCE14-600Q8
SLSCR14-600Q8
SLSCP14-600Q88
80
23 ms
750 mm (29.5")
SLSCE14-750Q8
SLSCR14-750Q8
SLSCP14-750Q88
100
27 ms
900 mm (35.4")
SLSCE14-900Q8
SLSCR14-900Q8
SLSCP14-900Q88
120
32 ms
1050 mm (41.3")
SLSCE14-1050Q8
SLSCR14-1050Q8
SLSCP14-1050Q88
140
36 ms
1200 mm (47.2")
SLSCE14-1200Q8
SLSCR14-1200Q8
SLSCP14-1200Q88
160
40 ms
1350 mm (53.1")
SLSCE14-1350Q8
SLSCR14-1350Q8
SLSCP14-1350Q88
180
43 ms
1500 mm (59.0")
SLSCE14-1500Q8
SLSCR14-1500Q8
SLSCP14-1500Q88
200
48 ms
1650 mm (65.0")
SLSCE14-1650Q8
SLSCR14-1650Q8
SLSCP14-1650Q88
220
52 ms
1800 mm (70.9")
SLSCE14-1800Q8
SLSCR14-1800Q8
SLSCP14-1800Q88
240
56 ms
*150 mm SLSC.. systems not available.
† Only standard 8-pin QD models are listed; 8-pin emitters/receivers feature “swapable” hookup; see Sections 3.3 and 3.7.
For other models:
5-pin emitters with Test input: Replace suffix “Q8” with “Q5”, (e.g., SLSCE14-150Q5), and
for the pair replace “Q88” with “Q85” (e.g., SLSCP14-150Q85).
Important: If a 5-pin emitter is used in the first (“master”) position in a cascaded system, then
5-pin emitters must be used in all other positions in that cascade.
Pigtail QD (8-pin models only): Replace the “Q” in the model number with “P” (e.g., SLSCE14-150P8).
ESD-safe models: Add “N” to the model number, prior to the QD option designation (e.g., SLSCE14-150NQ8). ESD-safe models are
not available with the pigtail QD option.
Optional housing finishes: Prior to the QD designation in the model number,
add “A” for a clear (brushed) anodized aluminum finish, black endcaps (e.g., SLSCE14-150AQ8),
add “S” for a nickel-plated (“silver”) finish, black endcaps (e.g., SLSCE14-150SQ8),
add “B” for a black painted finish, black endcaps (e.g., SLSCE14-150BQ8),
add “W” for a white painted finish, black endcaps (e.g., SLSCE14-150WQ8), or
add “SO” for a “safety orange” painted finish, black endcaps (e.g., SLSCE14-150SOQ8).
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EZ-SCREEN
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Cascadeable
Overview EZ-SCREEN
7.3 Cascadeable Emitter and Receiver Models – 30 mm Resolution
For cabling options, see Section 2.3.
Machine interface/power cables (one per end sensor, two per pair): Use QDE-..D cables.
Sensor interconnect cables (one per cascaded sensor, two per pair): Use DEE2R-..D cables.
30 mm Resolution Cascadeable Models
0.1 m to 18 m (4" to 60') range
Emitter/Receiver Number of
Receiver
Pair
Beams
†
Defined Area
Height*
Emitter (8-pin)
Response
Time (Tr)
300 mm (11.8")
SLSCE30-300Q8
8SLSCR30-300Q8
SLSCP30-300Q88
20
11 ms
450 mm (17.7")
SLSCE30-450Q8
SLSCR30-450Q8
SLSCP30-450Q88
30
13 ms
600 mm (23.6")
SLSCE30-600Q8
SLSCR30-600Q8
SLSCP30-600Q88
40
15 ms
750 mm (29.5")
SLSCE30-750Q8
SLSCR30-750Q8
SLSCP30-750Q88
50
17 ms
900 mm (35.4")
SLSCE30-900Q8
SLSCR30-900Q8
SLSCP30-900Q88
60
19 ms
1050 mm (41.3")
SLSCE30-1050Q8
SLSCR30-1050Q8
SLSCP30-1050Q88
70
21 ms
1200 mm (47.2")
SLSCE30-1200Q8
SLSCR30-1200Q8
SLSCP30-1200Q88
80
23 ms
1350 mm (53.1")
SLSCE30-1350Q8
SLSCR30-1350Q8
SLSCP30-1350Q88
90
25 ms
1500 mm (59.0")
SLSCE30-1500Q8
SLSCR30-1500Q8
SLSCP30-1500Q88
100
27 ms
1650 mm (65.0")
SLSCE30-1650Q8
SLSCR30-1650Q8
SLSCP30-1650Q88
110
30 ms
1800 mm (70.9")
SLSCE30-1800Q8
SLSCR30-1800Q8
SLSCP30-1800Q88
120
32 ms
1950 mm (76.8")
SLSCE30-1950Q8
SLSCR30-1950Q8
SLSCP30-1950Q88
130
34 ms
2100 mm (82.7")
SLSCE30-2100Q8
SLSCR30-2100Q8
SLSCP30-2100Q88
140
36 ms
2250 mm (88.6")
SLSCE30-2250Q8
SLSCR30-2250Q8
SLSCP30-2250Q88
150
38 ms
2400 mm (94.5")
SLSCE30-2400Q8
SLSCR30-2400Q8
SLSCP30-2400Q88
160
40 ms
*150 mm SLSC.. systems not available.
† Only standard 8-pin QD models are listed; 8-pin emitters/receivers feature “swapable” hookup; see Sections 3.3 and 3.7.
For other models:
5-pin emitters with Test input: Replace suffix “Q8” with “Q5”, (e.g., SLSCE30-150Q5), and
for the pair replace “Q88” with “Q85” (e.g., SLSCP30-150Q85).
Important: If a 5-pin emitter is used in the first (“master”) position in a cascaded system, then
5-pin emitters must be used in all other positions in that cascade.
Pigtail QD (8-pin models only): Replace the “Q” in the model number with “P” (e.g., SLSCE30-150P8).
ESD-safe models: Add “N” to the model number, prior to the QD option designation (e.g., SLSCE30-150NQ8). ESD-safe models are
not available with the pigtail QD option.
Optional housing finishes: Prior to the QD designation in the model number,
add “A” for a clear (brushed) anodized aluminum finish, black endcaps (e.g., SLSCE30-150AQ8),
add “S” for a nickel-plated (“silver”) finish, black endcaps (e.g., SLSCE30-150SQ8),
add “B” for a black painted finish, black endcaps (e.g., SLSCE30-150BQ8),
add “W” for a white painted finish, black endcaps (e.g., SLSCE30-150WQ8), or
add “SO” for a “safety orange” painted finish, black endcaps (e.g., SLSCE30-150SOQ8).
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EZ-SCREEN
Instruction Manual
Cascadeable EZ-SCREEN
Overview
possible; please call factory for assistance.
7.4 Determining Interconnect Cable Lengths
As the machine interface cable lengthens, the voltage drop
increases, which results in shorter possible interconnect cables
to maintain supply voltage requirements at the cascaded sensor.
See Section 2 for cables.
The following cable length charts are possible combinations
for each side of example cascaded systems. All cables are
assumed to be 22 awg wire. Other lengths and combinations are
Machine Interface Cable (L1)
QDE-..D
1'
3'
15'
25'
50'
50'
Emitters
Receivers
Recommended cable pairing per side of cascaded system
Sensor
Interconnect
Cable Lengths
(L2)
Individual
DEE2R-..D cables
Max. L2*
200'
200'
175'
135'
100'
100'
100'
100'
75'
75'
75'
75'
50'
50'
50'
50'
50'
25'
25'
25'
25'
25'
15'
15'
15'
15'
15'
3'
3'
3'
3'
3'
1'
1'
1'
1'
1'
EZ-SCREEN
Position #2
L2
EZ-SCREEN
Position #1
L1
Machine
Machine
Control
Control
*Multiple DEE2R-..D cables may be required.
Example 1:
Machine Interface Cable (L1): 15'
Sensor Interconnect Cable (L2): 175' (Using one 100' and
one 75' DEE2R cables) or 100' or shorter using single cables
Example 2:
Machine Interface Cable (L1): 50'
Sensor Interconnect Cable (L2): 50' or shorter
Figure 7-2. Cable length options for two cascaded light screens
Machine Interface Cable (L1)
QDE-..D
1'
3'
15'
Emitters
25'
Recommended cable pairing per side of cascaded system
L2
L2
L3
L2
L3
L2
EZ-SCREEN
Position #3
L3
Max. L2*
115'
1'
110'
1'
80'
1'
60'
1'
Max. L3*
1'
200'
1'
200'
1'
155'
1'
110'
100'
15'
100'
15'
75'
75'
75'
50'
75'
15'
50'
100'
50'
100'
50'
50'
50'
15'
25'
100'
25'
100'
25'
100'
25'
50'
15'
100'
15'
100'
15'
100'
15'
75'
3'
100'
3'
100'
3'
100'
3'
100'
1'
100'
1'
100'
1'
100'
1'
100'
Individual
DEE2R-..D cables
Sensor
Interconnect
Cable Lengths
(L2, L3)
L3
Receivers
L3
EZ-SCREEN
Position #2
L2
*Multiple DEE2R-..D cables may be required.
Example 1:
Machine Interface Cable (L1): 3'
Sensor Interconnect Cable (L2): 75'
Sensor Interconnect Cable (L3): 50'
EZ-SCREEN
Position #1
Example 2:
Machine Interface Cable (L1): 15'
Sensor Interconnect Cable (L2): 75'
Sensor Interconnect Cable (L3): 15'
L1
Machine
Machine
Control
Control
Figure 7-3. Cable length options for three cascaded light screens
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EZ-SCREEN
Instruction Manual
Cascadeable
Overview EZ-SCREEN
Due to the large number of possible combinations, the table in
Figure 7-4 includes only applications in which L2 = L4.
A common installation example is one that protects two areas of
a machine (e.g., the front and back of a power press) and uses
four EZ-SCREEN pairs to create two “L”-shaped sensing fields.
Machine Interface Cable
(L1) QDE-..D
1'
3'
15'
25'
Recommended cable pairing per side of cascaded system
Individual
DEE2R-..D cables
Max. L3*
Sensor
Interconnect
Cables (L2, L3
and L4)
L2
L3
L4
L2
L3
L4
L2
L3
L4
L2
L3
L4
1'
75'
1'
1'
45'
1'
1'
110'
1'
1'
105'
1'
50'
15'
50'
50'
15'
50'
25'
50'
25'
25'
50'
25'
25'
25'
25'
15'
75'
15'
15'
75'
15'
15'
25'
15'
15'
15'
15'
3'
100'
3'
3'
100'
3'
3'
50'
3'
3'
25'
3'
1'
100'
1'
1'
100'
1'
1'
75'
1'
1'
25'
1'
*Multiple DEE2R-..D cables may be required.
Emitters
Example 1:
Machine Interface Cable (L1): 15'
Sensor Interconnect Cable (L2): 1'
Sensor Interconnect Cable (L3): 75'
Sensor Interconnect Cable (L4): 1'
Example 2:
Machine Interface Cable (L1): 15'
Sensor Interconnect Cable (L2): 3'
Sensor Interconnect Cable (L3): 50'
Sensor Interconnect Cable (L4): 3'
Receivers
EZ-SCREEN
Position #4
L4
EZ-SCREEN
Position #3
L3
EZ-SCREEN
Position #2
L2
EZ-SCREEN
Position #1
L1
Machine
Machine
Control
Control
Figure 7-4. Cable length options for four cascaded light screens
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EZ-SCREEN
Instruction Manual
Cascadeable EZ-SCREEN
Overview
7.5 Response Time for Cascaded Light Screens
Response time is an important factor in determining a light
screen’s separation (safety) distance. For cascaded (or
“daisy-chained”) EZ-SCREEN systems, that response time is
dependent on the number of light screens, the number of beams
in the light screens, and their positions in the cascade. It can be
calculated easily, in two ways:
•Individuallyforeachlightscreeninthecascade(separation
distance is calculated for each light screen in the cascade), or
•Basedontheworst-casetimefortheentirecascade(alllight
screens in the cascade have the same separation distance).
Individual Response Time and Separation Distance
When calculating individual separation distance for each emitter/
receiver pair, the pair’s position in the cascade impacts its
response time, which then impacts its separation distance. This
method results in the closest possible separation distance for
each light screen.
Response time depends on how far “downstream” the light
screen is from the machine control. Each light screen position in
the cascade, starting from the first light screen in the cascade,
increases the light screen’s response time by 2 ms.
Overall Response Time and Separation Distance
The cascaded system’s Overall Response Time (Tr) is equal
to the response time of the individual sensor pair with the most
beams (i.e., the slowest individual response time), plus an adder
resulting from the number of systems in the cascade. Tr can be
found by the following formula:
Tr = Tr(max) + [(N-1) x 2 ms]
where:
Tr(max) is the response time of the slowest individual pair in the
cascade (i.e., the pair with the most beams; see Section 7.2).
N is the number of sensor pairs in the cascade.
Use this Tr value in the formula in Section 3.1.1 to determine
Overall Separation Distance (Ds). This will ensure that all sensor
pairs will be located at an adequate distance from the hazard, no
matter how the system is installed.
E-Stop (CSSI Input)
Emitters
Receivers
EZ-SCREEN
Position #4
15 + 2 + 2 + 2 = 21
Figure 7-5 depicts a four-pair cascaded system. The 14 mm
resolution, 300 mm EZ-SCREEN emitter/receiver pairs each
begin with a response time of 15 ms. The pair in position #1
(connected directly to the machine control), maintains its
15 ms response time. Response time for the second pair in the
cascade circuit increases by 2 ms, to 17 ms; for the third pair by
4 ms, to 19 ms, and for the fourth pair by 6 ms, to
21 ms. The formula used for U.S. applications (other standards
may apply) to calculate separation distance for individual
placement of each emitter/receiver pair in the cascaded system
is:
21 ms Response
EZ-SCREEN
Position #3
15 + 2 + 2 = 19
19 ms Response
Position #1: Ds = K (Ts + Tr) + Dpf
EZ-SCREEN
Position #2
Position #2: Ds = K (Ts + Tr + 2 ms) + Dpf
15 + 2 = 17
Position #3: Ds = K (Ts + Tr + 4 ms) + Dpf
17 ms Response
Position #4: Ds = K (Ts + Tr + 6 ms) + Dpf
NOTE: Light screens of other lengths/
resolutions will have different
response times.
Use the above formulas in place of the Ds formula in Section
3.1.1 to determine individual separation distance (Ds). This will
ensure each sensor pair is located at an adequate distance from
the hazard.
EZ-SCREEN
Position #1
15 ms Response
WARNING . . . Proper Installation
The user must comply with all instructions within Section 3 for
proper installation. See Sections 7.2 and 3.1.1 for complete
information.
Machine
Control
NOTE: EZ-SCREEN Cascade
Overall System Response
15 + [(4 – 1) × 2 ms]
15 + 6
21 ms response
CSSI Response Time = 40 ms + [(4 – 1) × 2 ms] = 46 ms
Figure 7-5. Calculating the individual response times of four, 14 mm
resolution, 300 mm cascaded Safety Light Screens
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EZ-SCREEN
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Cascadeable
Overview EZ-SCREEN
When contacts (e.g., an E-stop button) are connected to a
cascaded receiver (per Section 7.8), CSSI response time is
40 ms plus the 2 ms adder similar to the defined area Tr.
• ••••• ••• • • • • • ••••• • •••••• ••• • • •••• •• •••••••••••••••••••••••••••••••••••••
When light screens of different lengths or different resolutions
(and therefore different response times) are used in one circuit,
their positions in the cascade may become a consideration.
Tr(CSSI) = 40 ms + [(N-1) x 2 ms]
Receivers
Receivers
Emitters
Emitters
Emitters
Emitters
EZ-SCREEN
Position #3
For example, consider the light screen circuits depicted in Figure
7-6. Each example contains three safety light screens, one 1200
mm (with a response time of 40 ms), and two 300 mm light
screens (15 ms response each). Depending on their placement
in the cascade, the individual response time for the same three
light screens can vary from 40 to 44 ms.
Receivers
Receivers
Emitters
Emitters
Receivers
Receivers
EZ-SCREEN
Position #3
EZ-SCREEN
Position #3
15 + 2 + 2 = 19
15 + 2 + 2 = 19
Individual Response
Time: 19 ms
Individual Response
Time: 19 ms
40 + 2 + 2 = 44
Individual Response
Time: 44 ms
EZ-SCREEN
Position #2
15 + 2 = 17
Individual Response
Time: 17 ms
EZ-SCREEN
Position #2
40 + 2 = 42
Individual Response
Time: 42 ms
EZ-SCREEN
Position #2
15 + 2 = 17
Individual Response
Time: 17 ms
Machine
Machine
Control
Control
EZ-SCREEN
Position #1
EZ-SCREEN
Position #1
EZ-SCREEN
Position #1
Individual Response
Time: 15 ms
Individual Response
Time: 15 ms
Individual Response
Time: 40 ms
Machine
Machine
Control
Control
Machine
Machine
Control
Control
System Overall Response Time for all systems shown here is 40 + [(3 – 1) × 2 ms] = 44 ms
Figure 7-6. Calculating response times for a three-light screen cascade – both Individual and Overall methods
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EZ-SCREEN
Instruction Manual
Cascadeable EZ-SCREEN
Overview
7.6 Cascaded Sensor Configuration Settings
Setting cascaded sensors for scan code, trip or latch output,
external device monitoring (EDM), reduced resolution, fixed
blanking and inverted display is identical to the procedure for
non-cascadeable emitters and receivers (see Section 4).
Scan codes for each emitter and receiver pair must match.
However, for cascaded installations, scan codes must alternate
on adjacent systems as described in Section 3.1.8 and Figure
3-8. See warning below.
While the scan code, reduced resolution, fixed blanking, and
inverted display settings are independent for each cascaded
sensor pair, the trip/latch mode and EDM settings must be
determined by the first receiver in the cascade (closest to the
machine interface), which controls the OSSD outputs. All other
receivers in the cascade must be set for trip mode and
2-channel EDM (factory default settings).
The settings on the first receiver then determine trip or latch
mode and 1- or 2-channel EDM/aux. output, and this is the only
receiver that requires a reset following a latch condition.
7.6.1 Fixed Blanking
One or more areas within any cascaded EZ-SCREEN sensor
pair can be blanked out, just as with other EZ-SCREEN light
screens. Each sensor pair within a cascade must be
programmed separately, if required. See Section 3.4.3 for
more information and programming procedure.
7.7 Configuration for Cascaded Operation
Each cascaded system must be configured, before it can be run
in a production environment.
Before configuration, install all emitters and receivers per
Sections 3 and 7. The last receiver must be terminated
either with a terminator plug or by connecting two closed
mechanical contacts (see Sections 7.8 and 7.9).
WARNING . . . Scan Code
In situations where multiple systems are mounted closely
together, or where a secondary emitter is in view (within ±5°),
within range of an adjacent receiver; the adjacent systems must be
configured for different Scan Codes (i.e., one system set for Scan
Code 1 and the other for Scan Code 2).
If not, a receiver may synchronize to the signal from the wrong
emitter, reducing the safety function of the light screen.
This situation will be discovered by performing the trip test
(see Section 3.4.3).
Perform the following procedure on the first receiver only in
the cascade (closest to the machine interface).
1. From either normal operation or a power OFF condition, set
the second and fifth DIP switches (RR and T/L) both to the
left (RR and T position).
2. Set the third and fourth DIP switches (the second T/L and RR)
both to the right (L and OFF position); see Figure 7-7.
3. The receiver should be in a lockout condition or power OFF.
4. If power is OFF: Apply power
Lockout condition: Perform a valid reset sequence (close
the reset switch for 0.25 to 2 seconds, then reopen).
5. Coming out of lockout or during startup, the DIP switch
configuration will be recognized as Cascaded Teach Mode,
indicated by the following:
•Firstreceiverdisplayshows
No E-stop connected: “4C,” “3C,” or “2C” ON steady
E-stop w/closed contacts: “4CE,” “3CE,” or “2CE” ON
steady
E-stop w/open contacts: “4CE,” “3CE” or “2CE” flashing
•Lastcascadedreceiverdisplayshows
Terminator connected: “1C” ON steady
E-stop w/closed contacts: “1CE” ON steady
E-stop w/open contacts: “1CE” flashing
•Otherreceiversdisplay“1C”ONsteady
•AllreceiverZoneindicatorsOFF
•AllreceiverYellowresetindicatorsOFF
•AllreceiverStatusindicatorssolidred
6. To enable and exit Cascade Teach Mode, reconfigure DIP
switches for normal operation.
7. Perform a valid reset sequence (see Step 4), or cycle power.
1. Install cascade system per Sections 3
and 7 of this manual.
With Power ON:
2. Set T/L and RR switches as shown on
first receiver only (do not change
SC2/SC1 or E1/E2 switch positions).
3. Press the Reset button or cycle power.
4. Reconfigure DIP switches for normal
operation.
5. Press the Reset button or cycle power.
NOTE: If the EDM wiring does not match
the switch position shown (E2), an
EDM error occurs and fixed blanking
or cascade configuration will not be
allowed.
Figure 7-7. DIP switch configuration to enable cascade installation
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EZ-SCREEN
Instruction Manual
Cascadeable
Overview EZ-SCREEN
7.8 Emergency Stop Buttons and Rope/Cable Pulls
Cascadeable EZ-SCREEN receivers may be connected to one
or more E-stop buttons. The button(s) must connect to the end of
the last receiver in the cascade, in place of the terminator plug.
The connected E-stop button(s) will activate/deactivate the
OSSD outputs in all receivers in the cascade.
The number of E-stop buttons allowed in a series connection is
limited by the total resistance per channel. The total resistance
is the sum of all contact resistance values in the channel, plus
the total wire resistance in the channel. The maximum total
resistance per channel is 100 Ohms.
NOTE: The simultaneity between the two E-stop contacts, on
opening and closing, is 3 seconds. If simultaneity is not
met on either opening or closing, the first receiver’s display
will flash “|- - -|.” If simultaneity is not met on opening, the
closed contact can be opened later (after more than 3
seconds), then both contacts must be closed again.
E-Stop 1
E-Stop 2
E-Stop N
•WhenevertwoormoreE-stopswitchesareconnected
to the same EZ-SCREEN receiver, the contacts of the
E-stop switches must be connected together in series. This series
combination is then wired to the respective
EZ-SCREEN receiver input.
Never connect the contacts of multiple E-stop switches in
parallel to the EZ-SCREEN inputs; this defeats the switch
contact monitoring ability of the EZ-SCREEN light curtain,
and creates an unsafe condition which could result in
serious bodily injury or death.
•Also, when two or more E-stop switches are used, each
switch must be individually actuated (engaged), then
re-armed and the EZ-SCREEN light curtain reset (if using
latch mode). This allows the monitoring circuits to check each
switch and its wiring to detect faults. Failure to test each switch
individually in this manner could result in undetected faults
and create an unsafe condition which could result in serious
bodily injury or death.
deliberate action (such as twisting, pulling, or unlocking). The
switch should be a “positive-opening type,” as described by
IEC947-5-1. A mechanical force applied to such a button (or
switch) is transmitted directly to the contacts, forcing them
open. This ensures that the switch contacts will open whenever
the switch is activated. ANSI/NFPA 79 specifies the following
additional requirements:
Bn
22 awg
WARNING . . . Multiple E-Stop Switches
Wh
Bu
Bk
QDE2R4-8..D Cable Pinout*
Pin #1 • Brown (Ch 1a)
Pin #5 • n.c.
Pin #2 • Black (Ch 1b)
Pin #6 • n.c.
Pin #3 • Blue (Ch 2b)
Pin #7 • n.c.
Pin #4 • n.c.
Pin #8 • White (Ch 2a)
*Standard M12 / Euro-style cables (8-pin male QD) can also
be used, although pin number / wire color must be verified.
Figure 7-8. Hookup of E-stop buttons to the last receiver in the
cascade
WARNING . . . Emergency Stop Functions
If Cascade Input is used for an Emergency Stop function, do not
mute or bypass the safety outputs (OSSDs) of the EZ-SCREEN.
NFPA79 requires that the Emergency Stop function remain active at
all times. Muting or bypassing the safety outputs will render the
Emergency Stop function ineffective.
E-Stop Switch Requirements (Positive-Opening)
As shown in Figure 7-8, the E-stop switch must provide two
contact pairs, which are closed when the switch is in the
“armed” position. Once activated, the E-stop switch must open
its contacts and return to the closed-contact position only after
•EmergencyStoppushbuttonsshallbelocatedateach
operator control station and at other operating stations where
emergency shutdown shall be required.
•StopandEmergencyStoppushbuttonsshallbecontinuously
operable from all control and operating stations where located.
•ActuatorsofEmergencyStopdevicesshallbecoloredRed.
The background immediately around the device actuator shall
be colored Yellow. The actuator of a push-button-operated
device shall be of the palm or mushroom-head type.
•TheEmergencyStopactuatorshallbeaself-latchingtype.
NOTE: Some applications may have additional requirements.
The user must comply with all relevant regulations.
WARNING . . . Reset Routine Required
U.S. and international standards require that a reset routine be
performed after returning the E-stop switch to its closed-contact
position (when arming the E-stop switch). When automatic reset is
used, an alternate means must be established to require a reset
routine, after the E-stop switch is armed. Allowing the machine
to restart as soon as the E-stop switch is armed creates an
unsafe condition which could result in serious injury or death.
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EZ-SCREEN
Instruction Manual
7.9 Positive-Opening Safety Interlock Switches
The Cascade input may be used to monitor interlock safety
gates or guards. Requirements vary widely for the level of
control reliability or safety category (per ISO 13849-1) in the
application of interlocked guards. While Banner Engineering
recommends the highest level of safety in any application, it
is the responsibility of the user to safely install, operate, and
maintain each safety system and comply with all relevant laws
and regulations. Of the following applications, Figure 7-9 meets
or exceeds the requirements for OSHA control reliability and
Safety Category 4, per ISO 13849-1.
WARNING . . . Unguarded Moving Parts
It must not be possible for personnel to reach any hazard point
through an opened guard (or any opening) before hazardous
machine motion has completely stopped.
Please reference OSHA CFR1910.217, ANSI B11 standards, or
other appropriate standards for information on determining safety
distances and safe opening sizes for your application (see Inside
back cover).
Cascadeable EZ-SCREEN
Overview
The safety switches and actuators used with the Cascade must
be designed and installed so that they cannot be easily defeated.
They must be mounted securely, so that their physical position
can not shift, using reliable fasteners that require a tool to
remove. Mounting slots in the housings are for initial adjustment
only; final mounting holes must be used for permanent location.
Positive-Opening Interlocking Safety Switches
Two individually mounted safety interlock switches are
recommended for each guard to meet safety category 4, per ISO
13849-1, and must satisfy several requirements. Each switch
must provide at minimum, one normally closed (N/C) electrically
isolated contact to interface with the Cascade input (see Figure
7-9).
The contacts must be of “positive-opening” design, with one or
more normally closed contacts rated for safety. Positive-opening
operation causes the switch to be forced open, without the use of
springs, when the switch actuator is disengaged or moved from
its home position (see the Banner Safety Catalog for examples).
In addition, the switches must be mounted in a “positive mode”
to move/disengage the actuator from its home position and open
the normally closed contact when the guard opens.
Interlock Guarding Requirements
The following general requirements and considerations apply to
the installation of interlocked gates and guards for the purpose
of safeguarding. In addition, the user must refer to the relevant
regulations to be sure to comply with all necessary requirements.
Hazards guarded by the interlocked guard must be prevented
from operating until the guard is closed; a Stop command must
be issued to the guarded machine if the guard opens while the
hazard is present. Closing the guard must not, by itself, initiate
hazardous motion; a separate procedure must be required to
initiate the motion. The safety switches must not be used as a
mechanical or end-of-travel stop.
The guard must be located an adequate distance from the
danger zone (so the hazard has time to stop before the guard
is opened sufficiently to provide access to the hazard), and it
must open either laterally or away from the hazard, not into the
safeguarded area. Depending on the application, an interlocked
gate or door should not be able to close by itself and activate
the interlocking circuitry (ANSI/RIA R15.06). In addition, the
installation must prevent personnel from reaching over, under,
around, or through the guard to the hazard. Any openings in
the guard must not allow access to the hazard (see OSHA
29CFR1910.217 Table O-10 or the appropriate standard). The
guard must be strong enough and designed to protect personnel
and contain hazards within the guarded area, which may be
ejected, dropped, or emitted by the machine.
Open
NOTE: This application is considered
to meet or exceed requirements
for OSHA control reliability
and safety categories 4 per
ISO 13849-1.
Bn
Wh
Bu
Bk
QDE2R4-8..D Cable Pinout*
Pin #1 • Brown (Ch 1a)
Pin #5 • n.c.
Pin #2 • Black (Ch 1b)
Pin #6 • n.c.
Pin #3 • Blue (Ch 2b)
Pin #7 • n.c.
Pin #4 • n.c.
Pin #8 • White (Ch 2a)
*Standard M12 / Euro-style cables (8-pin male QD) can
also be used, although pin number / wire color must
be verified.
Figure 7-9. Monitoring two positive-opening safety switches
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EZ-SCREEN
Instruction Manual
Cascadeable
Overview EZ-SCREEN
Monitoring Series-Connected Positive-Opening Safety Switches
When monitoring two individually mounted safety switches (as
shown in Figure 7-9), a faulty switch will be detected if it fails
to switch as the guard opens. In this case, the EZ-SCREEN
will de-energize its OSSD output and disable its reset function
until the input requirements are met (i.e., the faulty switch
is replaced). However, when a series of interlocking safety
switches is monitored by the EZ-SCREEN, the failure of one
switch in the system may be masked or not detected at all (refer
to Figure 7-10).
Series-connected, positive-opening interlock switch circuits do
not meet ISO 13849-1 Safety Category 4 and may not meet
Control Reliability requirements because of the potential of
an inappropriate reset or a potential loss of the safety stop
signal. A multiple connection of this type should not be used
in applications where loss of the safety stop signal or an
inappropriate reset could lead to serious injury or death. The
following two scenarios assume two positive-opening safety
switches on each guard:
1. Masking of a failure. If a guard is opened but a switch fails
to open, the redundant safety switch will open and cause the
EZ-SCREEN to de-energize its outputs. If the faulty guard
is then closed, both Cascade input channels also close, but
because one channel did not open, the EZ-SCREEN will not
reset.
However, if the faulty switch is not replaced and a second
“good” guard is cycled (opening and then closing both of
the cascade input channels), the EZ-SCREEN considers the
failure to be corrected. With the input requirements apparently
satisfied, the EZ-SCREEN allows a reset. This system is no
Open
longer redundant and, if the second switch fails, may result in
an unsafe condition (i.e., the accumulation of faults results in
the loss of the safety function).
2. Non-detection of a failure. If a good guard is opened, the
EZ-SCREEN de-energizes its outputs (a normal response).
But if a faulty guard is then opened and closed before the
good guard is re-closed, the failure on the faulty guard is not
detected. This system also is no longer redundant and may
result in a loss of safety if the second safety switch fails to
switch when needed.
The circuits in either scenario do not inherently comply with
the safety standard requirements of detecting single faults and
preventing the next cycle. In multiple-guard systems using seriesconnected positive-opening safety switches, it is important to
periodically check the functional integrity of each interlocked
guard individually. Operators, maintenance personnel, and
others associated with the operation of the machine must
be trained to recognize such failures and be instructed to
correct them immediately.
Open and close each guard separately while verifying that the
EZ-SCREEN outputs operate correctly throughout the check
procedure. Follow each gate closure with a manual reset, if
needed. If a contact set fails, the EZ-SCREEN will not enable its
reset function. If the EZ-SCREEN does not reset, a switch may
have failed; that switch must be immediately replaced.
This check must be performed and all faults must be cleared, at
a minimum, during periodic checkouts. If the application can
not exclude these types of failures and such a failure could
result in serious injury or death, then the safety switches
must not be connected in series.
Open
Open
Bn
Wh
Bu
Bk
QDE2R4-8..D Cable Pinout*
Pin #1 • Brown (Ch 1a)
Pin #5 • n.c.
Pin #2 • Black (Ch 1b)
Pin #6 • n.c.
Pin #3 • Blue (Ch 2b)
Pin #7 • n.c.
Pin #4 • n.c.
Pin #8 • White (Ch 2a)
*Standard M12 / Euro-style cables (8-pin male QD)
can also be used, although pin number / wire color
must be verified.
WARNING . . . Not a Safety Category 4 Application
When monitoring multiple guards with a series connection of multiple safety interlock switches,
a single failure may be masked or not detected at all.
When such a configuration is used, procedures must be performed regularly to verify proper
operation of each switch. See “Monitoring Series-Connected Positive-Opening Safety Switches”
(Section 7.9.1) for more information. Failure to do so could result in serious injury or death.
Figure 7-10. Monitoring positive-opening safety switches on multiple gates
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EZ-SCREEN
Instruction Manual
Glossary
Overview
Glossary of Terms
The following terms are used often in this manual. Where
possible, this manual uses definitions from the U.S. and
international product performance standards that govern the
design of the Safety Controller. For more definitions, visit
Banner Engineering website.
ANSI (American National Standards Institute): Acronym
for the American National Standards Institute, an association
of industry representatives that develops technical standards
(including safety standards). These standards comprise a
consensus from a variety of industries on good practice and
design. ANSI standards relevant to application of safety
products include the ANSI B11 Series, and ANSI/RIA R15.06.
See “Safety Standards” on inside back cover.
Control Reliability: A method of ensuring the performance
integrity of a control system or device. Control circuits are
designed and constructed so that a single failure or fault within
the system does not prevent the normal stopping action from
being applied to the machine when required, or does not create
unintended machine action, but does prevent initiation of
successive machine action until the failure is corrected.
CSA: Abbreviation for Canadian Standards Association, a testing
agency similar to Underwriters Laboratories, Inc. (UL) in the
United States. A CSA-certified product has been type-tested and
approved by the Canadian Standards Association as meeting
electrical and safety codes.
Auto Power-Up: A safety light screen system feature that
enables the system to be powered up into RUN mode (or
recover from a power interruption) without requiring a manual
reset.
Defined Area: The “screen of light” generated by a safety
light screen system, defined by the height and the separation
distance of the emitter and receiver. When the defined area is
interrupted by an opaque object of a specified cross section, a
Trip or Latch condition results.
Blanking: A programmable feature of a safety light screen
system which allows the light screen to ignore certain objects
located within the defined area. See fixed blanking, Floating
Blanking, and Reduced Resolution.
Designated Person: An individual identified and designated
in writing, by the employer, as being appropriately trained and
qualified to perform a specified checkout procedure. (See
Qualified Person.)
Blocked Condition: A condition that occurs when an opaque
object of sufficient size blocks/interrupts one or more light
screen beams. When a blocked condition occurs, OSSD1
and OSSD2 outputs simultaneously turn off within the system
response time.
Emitter: The light-emitting component of a safety light screen
system, consisting of a row of synchronized modulated LEDs.
The emitter, together with the receiver (placed opposite), creates
a “screen of light” called the defined area.
Brake: A mechanism for stopping, slowing, or preventing
motion.
Cascade: Series connection (or “daisy-chaining”) of multiple
emitters and receivers.
CE: Abbreviation for “Conformité Européenne” (French
translation of “European Conformity”). The CE mark on a
product or machine establishes its compliance with all relevant
European Union (EU) Directives and the associated safety
standards.
Clutch: A mechanism that, when engaged, transmits torque to
impart motion from a driving member to a driven member.
External Device Monitoring (EDM): A means by which a
safety device (such as a safety light screen) actively monitors
the state (or status) of external devices that may be controlled
by the safety device. A lockout of the safety device will result
if an unsafe state is detected in the external device. External
device(s) may include, but are not limited to: MPCEs, captive
contact relays/contactors, and safety modules.
Failure to Danger: A failure which delays or prevents a machine
safety system from arresting dangerous machine motion, thereby
increasing risk to personnel.
Final Switching Device (FSD): The component of the machine’s
safety-related control system that interrupts the circuit to the
machine primary control element (MPCE) when the output signal
switching device (OSSD) goes to the OFF-state.
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Glossary
Overview
Fixed Blanking: A programming feature that allows a safety light
screen system to ignore objects (such as brackets or fixtures)
which will always be present at a specific location within the
defined area. The presence of these objects will not cause the
system’s safety outputs (e.g., Final Switching Devices) to trip or
latch. If any fixed objects are moved within or removed from the
defined area, a Lockout condition results.
EZ-SCREEN
Instruction Manual
Machine Primary Control Element (MPCE): An electrically
powered element, external to the safety system, which directly
controls the machine’s normal operating motion in such a way
that the element is last (in time) to operate when machine
motion is either initiated or arrested.
Floating Blanking: See Reduced Resolution.
Machine Response Time: The time between the activation of
a machine stopping device and the instant when the dangerous
parts of the machine reach a safe state (are brought to rest).
FMEA (Failure Mode and Effects Analysis): A testing
procedure by which potential failure modes in a system are
analyzed to determine their results or effects on the system.
Component failure modes that produce either no effect or a
Lockout condition are permitted; failures which cause an unsafe
condition (a failure to danger) are not. Banner safety products
are extensively FMEA tested.
Minimum Object Sensitivity (MOS): The minimum-diameter
object that a safety light screen system can reliably detect.
Objects of this diameter or greater will be detected anywhere in
the defined area. A smaller object can pass undetected through
the light if it passes exactly midway between two adjacent light
beams. Also known as MODS (Minimum Object Detection Size).
See also Specified Test Piece.
Guarded Machine: The machine whose point of operation is
guarded by the safety system.
Muting: The automatic suspension of the safeguarding function
of a safety device during a non-hazardous portion of the
machine cycle.
Hard Guard: Screens, bars, or other mechanical barriers
affixed to the frame of the machine intended to prevent entry
by personnel into the hazardous area(s) of a machine, while
allowing the point of operation to be viewed. The maximum size
of openings is determined by the applicable standard, such as
Table O-10 of OSHA 29CFR1910.217, also called a “fixed barrier
guard.”
Hazardous Area: An area that poses an immediate or impending
physical hazard.
Hazard Point: The closest reachable point of the hazardous
area.
Internal Lockout: A Lockout condition that is due to an internal
safety system problem. Generally, indicated by the red Status
indicator LED (only) flashing. Requires the attention of a
Qualified Person.
Key Reset (Manual Reset): A key-operated switch used to reset
a safety light screen system to RUN mode following a Lockout
condition, or to enable machine operation following a Latch
condition. Also refers to the act of using the switch.
Latch Condition: The response of the safety light screen Safety
Outputs (e.g., OSSDs) when an object equal to or greater than
the diameter of the specified test piece enters the defined area.
In a Latch condition, safety outputs simultaneously de-energize
and open their contacts. The contacts are held (latched) open
until the object is removed from the defined area and a manual
reset is performed. A latching output is used most often in
perimeter guarding applications. (See Trip Condition.)
OFF State: The state in which the output circuit is interrupted
and does not permit the flow of current.
ON State: The state in which the output circuit is complete and
permits the flow of current.
OSHA (Occupational Safety and Health Administration): A
U.S. Federal agency, Division of the U.S. Department of Labor,
that is responsible for the regulation of workplace safety.
OSSD: Output Signal Switching Device. The safety outputs that
are used to initiate a stop signal.
Part-Revolution Clutch: A type of clutch that may be engaged
or disengaged during the machine cycle. Part-revolution
clutched machines use a clutch/brake mechanism, which can
arrest machine motion at any point in the stroke or cycle.
Pass-Through Hazard: A situation that may exist when
personnel pass through a safeguard (at which point the hazard
stops or is removed), and then continue into the guarded area.
At this point the safeguard may not be able to prevent an
unexpected start or restart of the machine with personnel within
the guarded area.
Point of Operation: The location of a machine where material
or a workpiece is positioned and a machine function is
performed upon it.
Lockout Condition: A safety light screen condition that is
automatically attained in response to certain failure signals (an
internal lockout). When a Lockout condition occurs, the safety
light screen’s safety outputs turn OFF; the failure must be
corrected and a manual reset is required to return the system to
RUN mode.
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EZ-SCREEN
Instruction Manual
PSDI (Presence-Sensing Device Initiation): An application
in which a presence-sensing device is used to actually start
the cycle of a machine. In a typical situation, an operator
manually positions a part in the machine for the operation.
When the operator moves out of the danger area, the presencesensing device starts the machine (no start switch is used).
The machine cycle runs to completion, and the operator can
then insert a new part and start another cycle. The presencesensing device continually guards the machine. Single-break
mode is used when the part is automatically ejected after the
machine operation. Double-break mode is used when the part
is both inserted (to begin the operation) and removed (after the
operation) by the operator. PSDI is commonly confused with
“Trip Initiate.” PSDI is defined in OSHA CFR1910.217. Banner
safety light screen systems may not be used as PSDI devices
on mechanical power presses, per OSHA regulation 29 CFR
1910.217.
Qualified Person: An individual who, by possession of a
recognized degree or certificate of professional training, or by
extensive knowledge, training, and experience, has successfully
demonstrated the ability to solve problems relating to the subject
matter and work. (See Designated Person.)
Receiver: The light-receiving component of a safety light screen
system, consisting of a row of synchronized phototransistors.
The receiver, together with the emitter (placed opposite),
creates a “screen of light” called the defined area.
Reduced Resolution: A feature that allows a safety light
screen system to be configured to produce an intentionally
disabled light beam(s) within the light screen, which increases
the minimum object sensitivity. The disabled beam(s) appears
to move up and down (“float”) in order to allow the feeding of
an object through the defined area at any point without tripping
the safety outputs (e.g., OSSDs) and causing a Trip or Latch
condition. Sometimes called “Floating Blanking.”
Reset: The use of a manually operated switch to restore
the safety outputs to the ON state from a lockout or a Latch
condition.
Glossary
Overview
Separation Distance (Safety Light Screen): The minimum
distance required to allow the machine’s hazardous motion
to stop completely, before a hand (or other object) can reach
the nearest hazard point. Measured from the midpoint of the
defined area to the nearest hazard point. Factors that influence
minimum separation distance include the machine stop time,
the light screen system response time, and the light screen
minimum object detection size.
Specified Test Piece: An opaque object of sufficient size used
to block a light beam to test the operation of a safety light
screen system. When inserted into any part of the defined area,
it will place a system into a Trip or Latch condition. Banner
supplies specified test pieces with each system. See also
Minimum Object Sensitivity.
Supplemental Guarding: Additional safeguarding device(s) or
hard guarding, used to prevent a person from reaching over,
under, through or around the primary safeguard or otherwise
accessing the guarded hazard.
Test Piece: An opaque object of sufficient size used to block a
light beam to test the operation of a safety light screen system.
Trip Condition: The response of the safety outputs (e.g.,
OSSDs) of a safety light screen system when an object equal
to or greater than the diameter of the specified test piece enters
the defined area. In a Trip condition, the OSSDs simultaneously
de-energize. A Trip condition clears (resets) automatically
when the object is removed from the defined area. (See Latch
Condition.)
Trip Initiate: The resetting of a safeguard causing the initiation
of machine motion or operation. Trip Initiate is not allowed
as a means to initiate a machine cycle per NFPA 79 and ISO
60204-1, and is commonly confused with PSDI.
UL (Underwriters Laboratory): A third-party organization
that tests products for compliance with appropriate standards,
electrical codes, and safety codes. Compliance is indicated by
the UL listing mark on the product.
Resolution: See Minimum Object Sensitivity.
Self-Checking (Circuitry): A circuit with the capability to
electronically verify that all of its own critical circuit components,
along with their redundant backups, are operating properly.
Banner safety light screen systems and safety modules are selfchecking.
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