EZ-Screen Manual

EZ-Screen Manual
EZ-SCREEN™ System
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 in 12 sizes, 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 1.8 m (6" to 71")
•
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
•
Highly immune to EMI, RFI, ambient light, weld
flash, and strobe light
•
Two-piece design with External Device Monitoring
•
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)
9714 10th Avenue North • Minneapolis, MN 55441
Phone: 763.544.3164 • http://www.bannerengineering.com
Email: sensors@bannerengineering.com
Printed in USA
C
R
US
Section Contents
Section 1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1
Section 2
System Components and Specifications . . . . . . . . . . . Page 6
Section 3
Installation and Alignment . . . . . . . . . . . . . . . . . . . . . Page 17
Section 4
System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 36
Section 5
Troubleshooting and Maintenance . . . . . . . . . . . . . . . Page 41
Section 6
Checkout Procedures . . . . . . . . . . . . . . . . . . . . . . . . . Page 46
Section 7
Cascadeable EZ-SCREEN . . . . . . . . . . . . . . . . . . . . . . Page 48
10/04
P/N 112852 rev. C
EZ-SCREEN
Table of Contents
Instruction Manual
1. System Overview . . . . . . . . . . . . . . . . . . . . . . . . . page 1
1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Applications and Limitations. . . . . . . . . . . . . . . . . . . . 2
1.3 Control Reliability: Redundancy and Self-Checking . . 2
1.4 Operating Features . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. System Components and Specifications. . . . . . . . . Page 6
2.1 Emitter and Receiver Models (Non-Cascadeable) . . . . . . . 6
2.2 Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.5 Literature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.6 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3. Installation and Alignment. . . . . . . . . . . . . . . . . . . . Page 17
3.1 Mechanical Installation Considerations . . . . . . . . . . . . . . 17
3.2 Mechanical Mounting Procedure . . . . . . . . . . . . . . . . . . . 24
3.3 Initial Electrical Connections . . . . . . . . . . . . . . . . . . . . . . 25
3.4 Light Screen Initial Checkout . . . . . . . . . . . . . . . . . . . . . . 25
3.5 Electrical Interface to the Guarded Machine (Permanent
Hookup) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.6 Preparing for System Operation. . . . . . . . . . . . . . . . . . . . 33
3.7 Sensor “Swapability” and the Optional Emitter Hookup. . .33
4. System Operation . . . . . . . . . . . . . . . . . . . . . . . Page 36
4.1 Security Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4.2
4.3
4.4
4.5
4.6
System Configuration Settings . . . . . . . . . . . . . . . . . .
Reset Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Status Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Periodic Checkout Requirements . . . . . . . . . . . . . . . .
36
37
38
40
40
5. Troubleshooting and Maintenance. . . . . . . . . . . . Page 41
5.1 Troubleshooting Lockout Conditions . . . . . . . . . . . . . 41
5.2 Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
5.3 Electrical and Optical Noise. . . . . . . . . . . . . . . . . . . . . 46
5.4 Servicing and Maintenance . . . . . . . . . . . . . . . . . . . . . 46
6. Checkout Procedures. . . . . . . . . . . . . . . . . . . . . Page 47
6.1 Schedule of Checkouts . . . . . . . . . . . . . . . . . . . . . . . . 47
6.2 Commissioning Checkout . . . . . . . . . . . . . . . . . . . . . . 47
6.3 Shift/Daily Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.4 Semi-Annual (Six-Month) Checkout . . . . . . . . . . . . . . 48
7. Cascadeable EZ-SCREEN . . . . . . . . . . . . . . . . . . Page 49
7.1 Overview of Cascading . . . . . . . . . . . . . . . . . . . . . . . . 49
7.2 Cascadeable Emitter and Receiver Models . . . . . . . . . 50
7.3 Determining Interconnect Cable Lengths . . . . . . . . . . 52
7.4 Response Time for Cascaded Light Screens. . . . . . . . 54
7.5 Cascaded Sensor Configuration Settings . . . . . . . . . . 56
7.6 Programming for Cascaded Operation . . . . . . . . . . . . 56
7.7 E-Stop Buttons and Rope/Cable Pulls. . . . . . . . . . . . . 57
Glossary of Terms . . . . . . . . . . . . . . . . . . . . . . . . . Page 60
Safety Standards and Regulations . . . . . . . Inside Back Cover
Important ...
read this page before proceeding!
In the United States, the functions that EZ-SCREEN Systems are
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
System 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
System is applied, installed, wired, operated, and maintained. It
is the responsibility of the purchaser and user to apply this EZSCREEN System in full compliance with all relevant applicable
regulations and standards.
EZ-SCREEN Systems can guard against accidents only when they
are 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 Systems 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 Systems
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.
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
EZ-SCREEN
System Overview
Instruction Manual
1. System Overview
1.1 Introduction
The Banner EZ-SCREEN System provides a redundant,
microprocessor-controlled, opposed-mode optoelectronic
“curtain of light,” or “safety light screen.” It is generally used
as a point-of-operation safeguarding device, and is suited to
safeguard a variety of machinery.
EZ-SCREEN Systems are 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.
Electrical connections are made through M12 (or Eurostyle) 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 2.3 for interfacing solutions.
Both emitter and receiver feature 7-segment Diagnostic
Displays and individual LEDs to provide continuous indication
of the System’s operating status, configuration and error
conditions. See Section 1.4.7 for more information.
Receiver
Specified Test Piece
(2 diameters supplied
with receiver)
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. The handshake protocol is satisfied by any
Banner Engineering Safety Category 4 (per ISO 13849-1/
EN954-1) device with OSSD outputs or MSSI/USSI inputs.
This handshake verifies that the interface between the two
devices is capable of detecting certain unsafe failures that
may occur (such as a short circuit to a secondary source of
power or to the other channel, high input resistance or loss of
signal ground).
Banner EZ-SCREEN Systems can be described as “two-piece”
or “two-box” systems – 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., selfchecking) safety module required of systems without EDM.
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, which
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').
Status indicators
and configuration
switches behind
clear access panel
Emitter
Defined
Area
QD Fitting
Quick-disconnect
Cables
Figure 1-1. Banner EZ-SCREEN High-Resolution System: emitter,
receiver, and two interconnecting cables
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
P/N 112852 rev. C
1
EZ-SCREEN
System Overview
1.2 Applications and Limitations
The Banner EZ-SCREEN system is intended for pointof-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 System, read this manual
in its entirety, paying particular attention to this section
and all of Section 3. The System’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 System cannot
provide the protection for which it was designed.
EZ-SCREEN Systems are typically used, but are not
limited to, the following applications:
• Small assembly equipment
• Molding presses
• Automated production equipment
• Robotic work cells
• Power presses
EZ-SCREEN Systems may NOT be used with the following
machinery or unsuitable applications:
• Any machine that cannot be stopped immediately after
a stop signal is issued, such as single-stroke (or “fullrevolution”) clutched machinery.
• Any machine with inadequate or inconsistent machine
response time and stopping performance.
• Any machine that ejects materials or component parts
through the defined area.
• In any environment that is likely to adversely affect
photoelectric sensing system efficiency. For example,
corrosive chemicals or fluids or unusually severe levels of
smoke or dust, if not controlled, may degrade the efficiency
of the System.
• As tripping devices to initiate machine motion (PSDI
applications) on mechanical power presses, per OSHA
regulation 29 CFR 1910.217.
If an EZ-SCREEN System is installed for use as a perimeter
guarding system (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 System has been reset.
See Section 3.1.2 for further information.
Approvals are pending. See www.bannerengineering.com for
further information.
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 System 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.
CAUTION . . . Install System Only on
Appropriate Applications
Banner EZ-SCREEN Systems are for use only on
machinery that can be stopped immediately after
a stop signal is issued at any point in the machine’s stroke or
cycle, such as part-revolution clutched machines. Under no
circumstances may the EZ-SCREEN System be used on fullrevolution 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 the EZ-SCREEN System,
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 System is designed with redundant
microprocessors.
Redundancy must be maintained for as long as the
EZ-SCREEN System is in operation. Because a redundant
system is no longer redundant after a component has failed,
the System 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 System into a Lockout condition.
Recovery from this type of Lockout condition requires:
• replacement of the failed component (to restore
redundancy) and
• the appropriate reset procedure (see Section 1.4.8).
The Diagnostic Display is used to diagnose causes of a
Lockout condition (see Section 5.1).
Banner Engineering Corp. • Minneapolis, U.S.A.
2
P/N 112852 rev. C
www.bannerengineering.com • Tel: 763.544.3164
EZ-SCREEN
System Overview
Instruction Manual
1.4 Operating Features
1.4.2 Emitter QD and Hookup Options
The Banner EZ-SCREEN Systems described by this manual
feature several standard selectable functions:
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 3-16 and 3-17). The color-forcolor hookup allows the emitter and receiver positions to be
interchanged without rewiring.
• Reduced Resolution (Floating Blanking),
• Trip or Latch Output,
• External Device Monitoring (EDM),
• Scan Code setting,
• Fixed Blanking,
• Inverted Display, and
• Cascading (available on SLSC.. models).
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.
The resolution and the maximum range can be determined by
the model number on the emitter and receiver. See Section
2.1 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.
WARNING ... Use of Trip/Latch Output
Application of power to the EZ-SCREEN
System, 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 System going into RUN mode.
Failure to follow these instructions could result in serious
bodily injury or death.
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 interruptions
of one or more 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).
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)
This feature allows the EZ-SCREEN System to monitor the
status of external devices, such as MPCEs. The choices are
One- or Two-Channel Monitoring, or No Monitoring. EDM is
used when the EZ-SCREEN OSSD outputs directly control the
energizing and de-energizing of the MPCEs or other external
devices; see Sections 3.5.3 and 4.2 for more information.
1.4.4 Remote Test Input
On optional 5-pin EZ-SCREEN emitters (model numbers
SLSE..-..Q5; see Table 2.1), 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.
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
P/N 112852 rev. C
3
EZ-SCREEN
System Overview
Instruction Manual
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.”
Resolution directly affects the minimum allowable distance
between the defined area of a light screen and the nearest
Beams of
Defined Area
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, or
- blocked and/or misaligned.
Yellow Reset indicator – shows System status:
- RUN mode or
- waiting for a reset.
Bi-color red/green Status indicator – shows System
status:
- Reduced Resolution enabled,
- outputs are ON or OFF, or
- the System is in Lockout condition.
Press Break
Die
3-Digit Diagnostic Display – indicates specific error,
configuration conditions, or total number of blocked
beams.
Workpiece
See Sections 4.4 and 5.1 for more information about specific
indicator and Diagnostic Display code meanings.
Figure 1-2. Reduced Resolution
Emitter
Receiver
3-digit
Diagnostic
Display
Zone Indicators
(each shows status
of approx. 1/8 of the
total beams)
Yellow Reset
Indicator
Status Indicator
(Red/Green)
1-digit
Diagnostic
Display
Status
Indicator
(Red/Green)
Zone 1 Indicator
(indicates beam
synchronization status)
Figure 1-3. EZ-SCREEN emitter and receiver status indicators
Banner Engineering Corp. • Minneapolis, U.S.A.
4
P/N 112852 rev. C
www.bannerengineering.com • Tel: 763.544.3164
EZ-SCREEN
System Overview
Instruction Manual
1.4.8 Manual Resets and Lockout Conditions
1.4.10 Inverted Display
Reset Routine
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).
The EZ-SCREEN System requires a manual reset to clear a
Power-Up 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 System 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.
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.
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.
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 2.2 are recommended. See Section
7.3 for maximum cable lengths.
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:
• Individually for each light screen in the cascade (separation
distance is calculated for each light screen in the cascade),
or
• Based on the worst-case maximum for the entire cascade
(all light screens in the cascade have the same separation
distance).
See Section 7.4 for more information.
*Models SLSC..-150.. not available.
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
P/N 112852 rev. C
5
EZ-SCREEN
Components and Specifications
Instruction Manual
2. System 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 2.3.
2.1 Standard Emitter and Receiver Models (Non-Cascadeable)
Order one 5-pin cable for each 5-pin emitter, and one 8-pin cable for each 8-pin emitter or
receiver; see Table 2.2. For cascadeable emitter and receiver models, see Section 7.2.
Defined
Area Height
14 mm Resolution Models
Sensor
0.1 m to 6 m (4" to 20') range
5-pin Emitter
Connector*
8-pin Emitter
Connector**
Number
of Beams
Response
Time (Tr)
150 mm (5.9")
Emitter
Receiver
Pair
SLSE14-150Q5
SLSR14-150Q8
SLSP14-150Q85
SLSE14-150Q8
SLSR14-150Q8
SLSP14-150Q88
20
11 ms
300 mm (11.8")
Emitter
Receiver
Pair
SLSE14-300Q5
SLSR14-300Q8
SLSP14-300Q85
SLSE14-300Q8
SLSR14-300Q8
SLSP14-300Q88
40
15 ms
450 mm (17.7")
Emitter
Receiver
Pair
SLSE14-450Q5
SLSR14-450Q8
SLSP14-450Q85
SLSE14-450Q8
SLSR14-450Q8
SLSP14-450Q88
60
19 ms
600 mm (23.6")
Emitter
Receiver
Pair
SLSE14-600Q5
SLSR14-600Q8
SLSP14-600Q85
SLSE14-600Q8
SLSR14-600Q8
SLSP14-600Q88
80
23 ms
750 mm (29.5")
Emitter
Receiver
Pair
SLSE14-750Q5
SLSR14-750Q8
SLSP14-750Q85
SLSE14-750Q8
SLSR14-750Q8
SLSP14-750Q88
100
27 ms
900 mm (35.4")
Emitter
Receiver
Pair
SLSE14-900Q5
SLSR14-900Q8
SLSP14-900Q85
SLSE14-900Q8
SLSR14-900Q8
SLSP14-900Q88
120
32 ms
1050 mm (41.3")
Emitter
Receiver
Pair
SLSE14-1050Q5
SLSR14-1050Q8
SLSP14-1050Q85
SLSE14-1050Q8
SLSR14-1050Q8
SLSP14-1050Q88
140
36 ms
1200 mm (47.2")
Emitter
Receiver
Pair
SLSE14-1200Q5
SLSR14-1200Q8
SLSP14-1200Q85
SLSE14-1200Q8
SLSR14-1200Q8
SLSP14-1200Q88
160
40 ms
1350 mm (53.1")
Emitter
Receiver
Pair
SLSE14-1350Q5
SLSR14-1350Q8
SLSP14-1350Q85
SLSE14-1350Q8
SLSR14-1350Q8
SLSP14-1350Q88
180
43 ms
1500 mm (59")
Emitter
Receiver
Pair
SLSE14-1500Q5
SLSR14-1500Q8
SLSP14-1500Q85
SLSE14-1500Q8
SLSR14-1500Q8
SLSP14-1500Q88
200
48 ms
1650 mm (65")
Emitter
Receiver
Pair
SLSE14-1650Q5
SLSR14-1650Q8
SLSP14-1650Q85
SLSE14-1650Q8
SLSR14-1650Q8
SLSP14-1650Q88
220
52 ms
1800 mm (70.9")
Emitter
Receiver
Pair
SLSE14-1800Q5
SLSR14-1800Q8
SLSP14-1800Q85
SLSE14-1800Q8
SLSR14-1800Q8
SLSP14-1800Q88
240
56 ms
*5-pin emitters feature Test
input.
**8-pin emitters feature
“swapable” hookup; see
Sections 3.3.1 and 3.7.
Banner Engineering Corp. • Minneapolis, U.S.A.
6
P/N 112852 rev. C
www.bannerengineering.com • Tel: 763.544.3164
EZ-SCREEN
Components and Specifications
Instruction Manual
2.1 Standard Emitter and Receiver Models (Non-Cascadeable), continued
Defined
Area Height
30 mm Resolution Models
Sensor
0.1 m to 18 m (4" to 60') range
5-pin Emitter
Connector*
8-pin Emitter
Connector**
Number
of Beams
Response
Time (Tr)
150 mm (5.9")
Emitter
Receiver
Pair
SLSE30-150Q5
SLSR30-150Q8
SLSP30-150Q85
SLSE30-150Q8
SLSR30-150Q8
SLSP30-150Q88
10
9 ms
300 mm (11.8")
Emitter
Receiver
Pair
SLSE30-300Q5
SLSR30-300Q8
SLSP30-300Q85
SLSE30-300Q8
SLSR30-300Q8
SLSP30-300Q88
20
11 ms
450 mm (17.7")
Emitter
Receiver
Pair
SLSE30-450Q5
SLSR30-450Q8
SLSP30-450Q85
SLSE30-450Q8
SLSR30-450Q8
SLSP30-450Q88
30
13 ms
600 mm (23.6")
Emitter
Receiver
Pair
SLSE30-600Q5
SLSR30-600Q8
SLSP30-600Q85
SLSE30-600Q8
SLSR30-600Q8
SLSP30-600Q88
40
15 ms
750 mm (29.5")
Emitter
Receiver
Pair
SLSE30-750Q5
SLSR30-750Q8
SLSP30-750Q85
SLSE30-750Q8
SLSR30-750Q8
SLSP30-750Q88
50
17 ms
900 mm (35.4")
Emitter
Receiver
Pair
SLSE30-900Q5
SLSR30-900Q8
SLSP30-900Q85
SLSE30-900Q8
SLSR30-900Q8
SLSP30-900Q88
60
19 ms
1050 mm (41.3")
Emitter
Receiver
Pair
SLSE30-1050Q5
SLSR30-1050Q8
SLSP30-1050Q85
SLSE30-1050Q8
SLSR30-1050Q8
SLSP30-1050Q88
70
21 ms
1200 mm (47.2")
Emitter
Receiver
Pair
SLSE30-1200Q5
SLSR30-1200Q8
SLSP30-1200Q85
SLSE30-1200Q8
SLSR30-1200Q8
SLSP30-1200Q88
80
23 ms
1350 mm (53.1")
Emitter
Receiver
Pair
SLSE30-1350Q5
SLSR30-1350Q8
SLSP30-1350Q85
SLSE30-1350Q8
SLSR30-1350Q8
SLSP30-1350Q88
90
25 ms
1500 mm (59")
Emitter
Receiver
Pair
SLSE30-1500Q5
SLSR30-1500Q8
SLSP30-1500Q85
SLSE30-1500Q8
SLSR30-1500Q8
SLSP30-1500Q88
100
27 ms
1650 mm (65")
Emitter
Receiver
Pair
SLSE30-1650Q5
SLSR30-1650Q8
SLSP30-1650Q85
SLSE30-1650Q8
SLSR30-1650Q8
SLSP30-1650Q88
110
30 ms
1800 mm (70.9")
Emitter
Receiver
Pair
SLSE30-1800Q5
SLSR30-1800Q8
SLSP30-1800Q85
SLSE30-1800Q8
SLSR30-1800Q8
SLSP30-1800Q88
120
32 ms
*5-pin emitters feature Test input.
**8-pin emitters feature “swapable” hookup; see Sections 3.3.1 and 3.7.
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
P/N 112852 rev. C
7
EZ-SCREEN
Components and Specifications
Instruction Manual
2.2 Cables
Machine interface cables provide power to the first emitter/receiver pair. Sensor interface
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
For 8-Pin Emitters and Receivers**
QDE-815D
QDE-825D
QDE-850D
QDE-875D
QDE-8100D
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
5 m (15')
8 m (25')
15 m (50')
23 m (75')
30 m (100')
22
gauge
Banner Cable
Pinout/Color Code
Termination
5-pin Eurostyle female
connector on
one end; cut
to length
European M12
Specification*
Pin Color
Function
Pin Color
Function
1
2
3
4
5
6
7
8
+24V dc
EDM #2
EDM #1
OSSD #2
OSSD #1
0V dc
Gnd/Chassis
Reset
1
2
3
4
5
6
7
8
+24V dc
EDM #2
EDM #1
OSSD #2
OSSD #1
0V dc
Gnd/Chassis
Reset
Pin Color
Function
Pin Color
Function
1
2
3
4
5
+24V dc
Test #2
0V dc
Test #1
Gnd/Chassis
1
2
3
4
5
+24V dc
Test #2
0V dc
Test #1
Gnd/Chassis
Bn
Or/Bk
Or
Wh
Bk
Bu
Gn/Ye
Vi
Bn
Wh
Bu
Bk
Gn/Ye
Wh
BN
Gn
Ye
Gy
Pk
Bu
Rd
Bn
Wh
Bu
Bk
Shield
Connector
(female face
view)
1
7
6
1
4
8
5
5
2
3
4
2
3
*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 3-16). 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 9). When
combining cables in a multiple-light-screen cascade, refer to Section 7.3 for maximum
cable lengths.
Model Number
Length
Wire
Termination
22 gauge
8-pin Double-ended cables,
M12/Euro-style connectors,
female to male (rotateable)
For 8-Pin Emitters and Receivers*
DEE2R-81D
DEE2R-83D
DEE2R-88D
DEE2R-815D
DEE2R-825D
DEE2R-850D
DEE2R-875D
DEE2R-8100D
0.5 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')
5
6
7
MALE END VIEW
7
6
5
www.bannerengineering.com • Tel: 763.544.3164
4
P/N 112852 rev. C
FEMALE END VIEW
Banner Engineering Corp. • Minneapolis, U.S.A.
8
4
*Call factory for availability of 5-pin double-ended cables.
EZ-SCREEN
Components and Specifications
Instruction Manual
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
Length
CSB-M1281M1281
CSB-M1288M1281
CSB-M12815M1281
CSB-M12825M1281
CSB-UNT825M1281
FEMALE END VIEW
MALE END VIEW
6
5
6
7
4
8
2
1 = BROWN
2 = ORANGE/BLACK
3 = ORANGE
4 = WHITE
5 = BLACK
6 = BLUE
7 = GREEN/YELLOW
8 = VIOLET
R
5
7
1
3
4
1
3
8
2
1 = BROWN
2 = ORANGE/BLACK
3 = ORANGE
4 = WHITE
5 = BLACK
6 = BLUE
7 = GREEN/YELLOW
8 = VIOLET
300 mm (1') Trunk
2.5 m (8') Trunk
5 m (15') Trunk
8 m (25') Trunk
8 m (25') Trunk
(unterminated)
Wire
22
gauge
Pin-Out
Pin #1 (+24V dc)
Pin #1 (+24V dc)
Pin #2 (EDM#2)
Pin #3 (EDM#1)
Pin #2 (EDM#2)
Pin #3 (EDM#1)
Pin #4 (OSSD#2)
Pin #5 (OSSD#1)
Pin #6 (0V dc)
Pin #4 (OSSD#2)
Pin #5 (OSSD#1)
Pin #6 (0V dc)
Pin #7 (GND)
Pin #7 (GND)
Pin #8 (RESET)
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)
R
Pin #6 (0V dc)
Pin #7 (GND)
Pin #8 (RESET)
M12 Female
2.3 Accessories
Additional interfacing solutions and accessories continue to be added; refer to
www.bannerengineering.com for a current list.
Interface Modules
Provide forced-guided, mechanically-linked relay (safety) outputs for the EZ-SCREEN System.
See Banner data sheet p/n 62822, and Figures 3-19 and 3-20 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
If used, two contactors per EZ-SCREEN System are required. (See Figure 3-18.)
10 amp positive-guided contactor 3 N/O, 1 NC
11-BG00-31-D-024
16 amp positive-guided contactor 3 N/O, 1 NC
11-BF16C01-024
Muting Module
Provides muting capability for the EZ-SCREEN System. See Banner manual p/n 63517 for further
information and additional cabling options.
Muting module (2 OSSD outputs, 2 or 4 muting inputs, USSI, override input)
MM-TA-12B
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
DESE4-508D
DESE4-515D
DESE4-525D
2.5 m (8')
5 m (15')
8 m (25')
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
P/N 112852 rev. C
9
EZ-SCREEN
Components and Specifications
Instruction Manual
Lens Shields
NOTE: The total range decreases by approximately 10% per shield.
Sensor Defined
Area Height
Lens Shield
Model
Lens Shield
Length
Part #
150 mm
EZS-150
258 mm (10.2")
71452
300 mm
EZS-300
368 mm (14.5")
71453
450 mm
EZS-450
518 mm (20.4")
71454
600 mm
EZS-600
667 mm (26.3")
71455
750 mm
EZS-750
817 mm (32.2")
71456
900 mm
EZS-900
967 mm (38.1")
71457
1050 mm
EZS-1050
1116 mm (43.9")
71458
1200 mm
EZS-1200
1266 mm (49.8")
71459
1350 mm
EZS-1350
1416 mm (55.7")
71460
1500 mm
EZS-1500
1565 mm (61.6")
71461
1650 mm
EZS-1650
1715 mm (67.5")
71462
1800 mm
EZS-1800
1865 mm (73.4")
71463
Tubular Enclosures
EZA-MBK-2 adapter bracket is required for use with MSA Series stand, see page 12.
Enclosure
Model
Part
Number
Enclosure
Height
For EZ-SCREEN
Sensor Models
EZA-TE-150
72790
439 mm (17.3")
SLS..-150
EZA-TE-300
72791
541 mm (21.3")
SLS..-300
EZA-TE-450
72792
744 mm (29.3")
SLS..-450
EZA-TE-600
72793
846 mm (33.3")
SLS..-600
EZA-TE-750
72794
1024 mm (40.3")
SLS..-750
EZA-TE-900
72795
1151 mm (45.3")
SLS..-900
EZA-TE-1050
72796
1354 mm (53.3")
SLS..-1050
EZA-TE-1200
72797
1455 mm (57.3")
SLS..-1200
EZA-TE-1350
72798
1608 mm (63.3")
SLS..-1350
EZA-TE-1500
72799
1760 mm (69.3")
SLS..-1500
EZA-TE-1650
72800
1913 mm (75.3")
SLS..-1650
EZA-TE-1800
72801
2065 mm (81.3")
SLS..-1800
NOTE: Explosion-proof enclosures also
available. Contact factory or visit
www.bannerengineering.com for
more information.
MSA Series Stands (Base Included)*
Stand
Height
Stand
Model
Useable
Stand Height
Overall Stand
Height
Part #
24"
MSA-S24-1
19"
24"
43174
42"
MSA-S42-1
37"
42"
43175
66"
MSA-S66-1
61"
66"
43176
84"
MSA-S84-1
79"
84"
52397
*Available without a base by adding the suffix “NB” to model number, e.g., MSA-S42-1NB.
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Banner Engineering Corp. • Minneapolis, U.S.A.
10
P/N 112852 rev. C
www.bannerengineering.com • Tel: 763.544.3164
EZ-SCREEN
Components and Specifications
Instruction Manual
MSM Series Corner Mirrors
M4 x 10 mm
Screw
(8 supplied)
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
Part #
150 mm
(5.9")
MSM8A
267 mm
(10.5")
323 mm
(12.7")
292 mm
(11.5")
43163
300 mm
(11.8")
MSM12A
356 mm
(14")
411 mm
(16.2")
381 mm
(15")
43164
450 mm
(17.7")
MSM20A
559 mm
(22")
615 mm
(24.2")
584 mm
(23")
43166
600 mm
(23.6")
MSM24A
660 mm
(26")
716 mm
(28.2")
686 mm
(27")
43167
750 mm
(29.5")
MSM32A
864 mm
(34")
919 mm
(36.2")
889 mm
(35")
43169
900 mm
(35.4")
MSM36A
965 mm
(38")
1021 mm
(40.2")
991 mm
(39")
43170
1050 mm
(41.3")
MSM44A
1168 mm
(46")
1224 mm
(48.2")
1194 mm
(47")
43172
1200 mm
(47.2")
MSM48A
1270 mm
(50")
1326 mm
(52.2" )
1295 mm
(51")
43173
53.8 mm
(2.12")
Y
L1
L2
50.8 mm
(2.00")
72.9 mm
(2.87")
SSM Series Corner Mirrors
• Rear-surface glass mirrors rated at 85% 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.
M6 x 19 mm
screw
(4 supplied)
• Stainless steel reflective surface models also available. See data sheet 67200.
101.2 mm
(3.98")
• Robust construction, two mounting brackets and hardware included.
• EZA-MBK-2 adapter bracket is required for use with MSA Series stand, see page 12.
M5 x 10 mm
screw
(4 supplied)
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")
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
P/N 112852 rev. C
11
EZ-SCREEN
Components and Specifications
Instruction Manual
Accessory Mounting Brackets
See Section 2.4 for standard brackets. Contact factory for more information. Order
one EZA-MBK-.. bracket per sensor, two per pair.
Model
EZA-MBK-2
Part #
61947
Description
Adapter bracket for SSM series
mirror and MSA series stands
EZA-MBK-20
50.0 mm
(1.97")
EZA-MBK-20
72587
• Universal adaptor bracket for
mounting to engineered/slotted
aluminum framing (e.g., 80/20™,
Unistrut™).
• Retrofit for Banner MS/US/MG.
EZA-MBK-21
73319
Mounting bracket system for “L”
configuration of two cascaded light
screens. Order one per side. See
Section 7.9 or factory for further
information.
NOTE: Special end brackets included,
but not shown.
EZA-MBK-8
62771
Retrofit for Sick FGS and Leuze
L-bracket
EZA-MBK-13
71757
Retrofit for Sick C4000,
AB SafeShield/GuardShield,
Omron FS3N, STI MC42/47
EZA-MBK-14
71758
Retrofit for STI MS4300
EZA-MBK-15
71759
Retrofit for STI MS46/47, Keyence
PJ-V, SUNX SF4-AH
EZA-MBK-18
72057
Retrofit for Dolan-Jenner 557
44.4 mm
(1.75")
20 mm
(0.79")
4.2 mm
(0.17")
CL
39.2 mm
(1.54")
58.2 mm
(2.29")
40 mm
(1.57")
Alignment Aids
Model
Part #
Description
LAT-1-SS
71445
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
73318
Replacement adaptor (clip) hardware for SLS.. models
EZA-LAT-2
71446
Clip-on retroreflective LAT target
BRT-THG-2-100
26620
2" retroreflective tape, 100'
BT-1
26809
Beam Tracker
Banner Engineering Corp. • Minneapolis, U.S.A.
12
P/N 112852 rev. C
www.bannerengineering.com • Tel: 763.544.3164
EZ-SCREEN
Components and Specifications
Instruction Manual
2.4 Replacement Parts
Description
Model Number
Part #
Keyed reset switch
MGA-KSO-1
30140
Replacement key
MGA-K-1
28513
Polycarbonate access cover with label – emitter
EZA-ADE-1
71447
Polycarbonate access cover with label – receiver
EZA-ADR-1
71448
Access cover with inverted label – emitter
EZA-ADE-2
72930
Access cover with inverted label – receiver
EZA-ADR-2
72929
Access cover security plate (includes 2 screws, wrench)
EZA-TP-1
71449
14 mm test piece (for 14 mm resolution systems)
STP-13
71929
30 mm test piece (for 14 mm resolution systems with
2-beam Reduced Resolution and for 30 mm resolution
systems)
STP-14
71930
60 mm test piece (for 30 mm resolution systems with
2-beam Reduced Resolution)
STP-15
71931
Standard bracket kit with hardware (includes 2 end
brackets and hardware to mount to MSA Series stands;
see Figure 2-1)
EZA-MBK-11
71470
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
71756
SSM Mirror bracket kit (includes 2 replacement brackets
for one mirror)
SMA-MBK-1
61933
2.5 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
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
P/N 112852 rev. C
13
EZ-SCREEN
Components and Specifications
Instruction Manual
2.6 Specifications
2.6.1 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 per ISO 13849-1 (EN 954-1)
Operating Range
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 and well-sealed,
rugged die-cast zinc end caps, acrylic lens cover, polycarbonate access 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 systems 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-to-peak) and shock of 10 g for 16 milliseconds (6,000 cycles).
Certifications
IEC61496-1, -2: Type 4
ISO13849-1(EN954-1): Cat4
C
R
US
NIPF(7)
UL1998, UL61496
*The external voltage supply must be cabable of buffering brief mains interruptions of 20 ms, as specified in IEC/EN 60204-1.
2.6.2 Emitter Specifications
Supply Voltage at the Device*
24V dc ±15% (SELV)
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.
Wavelength of Emitter Elements
Infrared LEDs, 950 nm at peak emission
*The external voltage supply must be cabable of buffering brief mains interruptions of 20 ms, as specified in IEC/EN 60204-1.
Banner Engineering Corp. • Minneapolis, U.S.A.
14
P/N 112852 rev. C
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EZ-SCREEN
Components and Specifications
Instruction Manual
2.6.3 Receiver Specifications
Supply Voltage at the Device*
24V dc ±15% (SELV)
Residual Ripple
± 10% maximum
Supply Current (no load)
275 mA max., exclusive of OSSD1 and OSSD2 loads (up to an additional 0.5A each)
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). Monitored
devices must respond within 200 milliseconds of an output change.
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 0.25 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: 0.25 to 2 seconds
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 µF
Max. load inductance: 10 H
Leakage Current: 0.50 mA maximum
Cable Resistance: 10 Ω maximum
OSSD test pulse width: 100 to 300 microseconds
OSSD test pulse period: 5 ms to 27 ms (varies with number of beams)
Switching Current: 0-0.5 A
*The external voltage supply must be cabable of buffering brief mains interruptions of 20 ms, as specified in IEC/EN 60204-1.
Center Bracket
End Cap Brackets
(model EZA-MBK-12)
(model EZA-MBK-11)
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")
20 mm
(0.79")
55 mm
(2.17")
4.2 mm
(0.17")
2 x 15 mm
(0.59")
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")
63.2 mm
(2.49")
55.6 mm
(2.19")
2 x 7 mm
(0.28")
2 x R 5 mm
(0.20")
4.2 mm
(0.17")
9.5 mm
(0.37")
20 mm
(0.79")
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)
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
P/N 112852 rev. C
15
EZ-SCREEN
Components and Specifications
45.2 mm
12 mm*
(1.78")
(0.47")
Instruction Manual
36.0 mm
(1.42")
Y
L1
L3
L2
56.0 mm
(2.20")
4.2 mm
(0.17")
Emitter or
Receiver Model
Housing Length
L1
R13 mm (0.5")
minimum bend
65 mm
(2.6")
*For SLS..-150 models, this distance is 52 mm (2")
Distance Between Bracket Holes
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")
†
Nominal measurement
Figure 2-2. Emitter and receiver mounting dimensions and location of defined area
Banner Engineering Corp. • Minneapolis, U.S.A.
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P/N 112852 rev. C
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EZ-SCREEN
Installation and Alignment
Instruction Manual
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 System 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 System 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.
3.1 Mechanical Installation Considerations
The two factors that influence the layout of the EZ-SCREEN
System’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
Systems.
!
WARNING . . . Position Components
Carefully
The emitter and receiver must be positioned
such that the hazard can not be accessed by reaching
over, under, around or through the sensing field. Additional
guarding may be required; see Separation Distance, Section
3.1.1, and Pass-Through Hazards, Section 3.1.2, and
Supplemental Safeguarding, Section 3.1.4.
Figure 3-1. Separation distance and hard guarding
Banner Engineering Corp. • Minneapolis, U.S.A.
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P/N 112852 rev. C
17
EZ-SCREEN
Installation 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 System (see Section 2.1 for SLS.. models
and Section 7.4 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.
!
CAUTION . . . Proper Installation When
Using Reduced Resolution
Instruction Manual
!
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.
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.
Banner Engineering Corp. • Minneapolis, U.S.A.
18
P/N 112852 rev. C
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EZ-SCREEN
Installation and Alignment
Instruction Manual
3.1.2 Pass-Through Hazards
3.1.3 Reset Switch Location
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.
The reset switch must be mounted at a location that
complies with the warning below.
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.
!
WARNING . . . Use of EZ-SCREEN
Systems 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.
Additional safeguarding, as described by ANSI B11 safety
requirements or other appropriate standards, must be used if
a pass-through 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.
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:
• Outside the guarded area,
• Located to allow the switch operator full, unobstructed view
of the entire guarded area while the reset is performed,
• Out of reach from within the guarded area, and
• Protected against unauthorized or inadvertent operation
(such as 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 System 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 EZSCREEN System 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.
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
P/N 112852 rev. C
19
EZ-SCREEN
Installation and Alignment
!
WARNING . . . The Hazard Must Be
Accessible Only through the Defined Area
The installation of the EZ-SCREEN System
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.
Instruction Manual
3.1.5 Emitter and Receiver Orientation
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.
Receiver
Receiver
Emitter
Emitter
Figure 3-3. An example of supplemental safeguarding
a) Cable ends point in opposite
directions.
Problem: Voids in defined area
b) Emitter and receiver not
parallel to each other.
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).
!
Receiver
Emitter
Receiver
Emitter
WARNING . . . Proper Orientation of
System Emitters and Receivers
EZ-SCREEN System 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 System and will result in incomplete
guarding, and could result in serious bodily injury or death.
a) Both cable ends down
b) Both cable ends up
Receiver
c) Oriented parallel to floor
with both cable ends pointing in
the same direction
Emitter
Figure 3-5. Examples of correct emitter / receiver orientation
Banner Engineering Corp. • Minneapolis, U.S.A.
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P/N 112852 rev. C
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EZ-SCREEN
Installation and Alignment
Instruction Manual
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).
EZ-SCREEN Systems may be used with one or more corner
mirrors (see Section 2.3). The use of glass-surface corner
mirrors reduces the maximum specified emitter/receiver
separation by approximately 8 percent per mirror, as follows:
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.
d
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.
Recommended sensor
configuration angle
Do not position reflective surfaces
within the shaded area
Emitter
SSM and MSM Series Glass-Surface Mirrors –
Maximum Emitter and Receiver Separation
Emitter
Mirror
A
Receiver
45˚ < A < 120˚
d
Operating Range
(R)
Mirror
Receiver
Emitter
At installed operating range (R):
d= 0.0437 x 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 x R (m or ft)
Figure 3-6. Adjacent reflective surfaces
Receiver
Figure 3-7. Never use EZ-SCREEN sensors in a retroreflective mode.
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EZ-SCREEN
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Instruction Manual
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 systems 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).
a) Two systems in a
horizontal plane
Scan Code 1
Receiver
Receiver
Scan Code 1
Emitter
b) Two or three systems
stacked (or alternate
receiver/emitter
positions)
Receiver
Scan Code 1
Emitter
!
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.
c) Two systems at right angles
Scan Code 1
Receiver
Scan Code 2
Emitter
Scan Code 2
Horizontal
Emitter
Emitter
Horizontal
Receiver
Scan Code 2
This situation will be discovered by performing the trip test
(see Section 3.4.3).
!
Emitter
Receiver
Receiver
WARNING . . . Multiple Pairs of Sensors
Do not connect multiple pairs of sensors to
one Interface Module (e.g., IM-T-9A/-11A) or
otherwise parallel OSSD outputs.
Emitter 1
M
Receiver 1
L
Receiver 2
Connection of multiple OSSD safety outputs to a single
device can result in serious bodily injury or death, and is
prohibited.
Emitter 2
Scan Code 1
Emitter 3
Scan Code 2
Receiver 3
d) Multiple systems
Scan Code 2
Figure 3-8. Installation of multiple systems; alternate emitters and
receivers to avoid optical crosstalk.
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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
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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 2.4) 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 3-7).
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:
• The emitter and receiver are directly opposite each other.
• Nothing is interrupting the defined area.
• The defined area (marked on the sensors) is the same
distance from a common reference plane for each sensor.
• The emitter and receiver are in the same plane and are
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
Receiver
A
level
level
X
level
B
level
X
Y
Z
Y
Z
Level Surface
Angled or Horizontal Installations – verify that:
• Distance X at the emitter and receiver are equal.
• Distance Y at the emitter and receiver are equal.
• Distance Z at the emitter and receiver are equal from parallel
surfaces.
• Vertical face (i.e., the lens) is level/plumb.
• Defined area is square. Check diagonal measurements if
possible; see Vertical Installations, at right.
X
X
Level Surface
Vertical Installations – verify that:
• Distance X at the emitter and receiver are equal.
• Both sensors are level/plumb (check both the
side and face).
• Defined area is square. Check diagonal measurements
if possible (Diagonal A = Diagonal B).
Figure 3-10. Sensor mounting, mechanical alignment
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EZ-SCREEN
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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.
Lockout/tagout procedures may be required (refer to
OSHA1910.147, 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 3-17 through 3-20). Do not operate the
EZ-SCREEN System without an earth ground connection.
See the warning below.
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 low-voltage dc control cables and may require
installation of electrical conduit. See Section 2.2 for selection
of Banner-supplied cables.
The EZ-SCREEN System 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 high-voltage 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 7.3 for cascade installations.
NOTE: Cable length includes power (+24V dc) and return
(0V dc) wires at +25˚C, and is 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.
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 Eurostyle quick-disconnects.
3.3.1 Emitter Cable
Standard EZ-SCREEN emitters have an 8-pin cable, but only
three conductors are required to be used (Brown = +24V dc,
Blue = 0V dc, Green/Yellow = GND). The other wires are for
an optional hookup that allows for parallel connection (colorfor-color) to the receiver cable (see Figure 3-16). This optional
hookup provides for sensor interchangeability (or swapability)
that allows for the ability to install either sensor at either QD
connection. Besides 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 3-17). Locate the
black and the white wires at the end of the cable; 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).
3.3.2 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 3-18,
3-19 and 3-20). See warning in Section 3.1.3 on 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 reopened to accomplish the reset. The switch must be capable
of switching 10 to 30V dc at 30 mA.
Connection of other wiring or equipment to the EZ-SCREEN
System could result in serious bodily injury or death.
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Installation 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.
Configuring the System for Initial Checkout
Verify that Test input is jumpered (if used) and the System
is set to the factory defaults for initial checkout and optical
alignment. (Factory defaults are for Trip Output, 2-Channel
EDM, Reduced Resolution OFF, and Scan Code 1. See Figure
4-1.)
The procedure is performed on two occasions:
• To ensure proper installation when the System is first
installed, and
• To ensure proper System function whenever any
maintenance or modification is performed on the System
or on the machinery being guarded by the System. (See
Section 6.1 for a schedule of required checkouts.)
For the initial checkout, the EZ-SCREEN System must be
checked without power being available to the guarded
machine. Final interface connections to the guarded
machine cannot take place until the light screen system
has been checked out. This may require lockout/tagout
procedures (refer to OSHA1910.147, ANSI Z244-1, or the
appropriate standard for controlling hazardous energy). These
connections will be made after the initial checkout procedure
has been successfully completed.
Verify that:
• Power has been removed from (or is not available to) the
guarded machine, its controls or actuators; and
• The machine control circuit or the Interface Module is not
connected to the OSSD outputs at this time (permanent
connections will be made later); and
• EDM is configured for No Monitoring, per Section 3.3.2.
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.
Leaving power to the guarded machine OFF, make power
and earth ground connections on both the emitter and
EZ-SCREEN
Instruction Manual
receiver cables (see Figures 3-17 to 3-20) 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.
3. Observe both the emitter and the receiver System Status
indicators and the receiver Zone indicators to determine
light screen alignment status:
• A Lockout condition (emitter or receiver) – the System
Status indicator single-flashing Red, and the receiver
Zone and Reset indicators OFF. Proceed to Section 5 for
diagnostic information.
• Normal operating mode (emitter) – the System Status
indicator ON Green.
• TEST mode (5-pin emitters only) – a flashing Green
System Status indicator (Test input open, see Figure 3-17
and Section 5.2).
• A Latch condition (receiver), all optical beams clear
– the receiver System Status indicator ON Red and the
Reset indicator double-flashing Yellow; Zone indicators
ON Green. When the receiver is configured for Latch
Output, the outputs are ON only when all beams are clear
and after a manual reset (see Section 1.4.7). If a reset
routine can cause a Clear (RUN) condition, optimize
the alignment as described in step 4. If a Clear (RUN)
condition can not be achieved, see “Blocked condition”
below.
• 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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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.
a)
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.
Straight Edge
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.
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
CH1
b)
OFF
ON Red
OFF
#
Beams
Blocked
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.
C1
or
C2
All
OFF
Verify Sensor Mounting per section 3.2.
Verify Optimal Alignment (Rotational Adjustment with
power ON)
Straight Edge
c)
ON Red
or
Green
Yellow Red
d)
Dash
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):
• That the emitter, receiver, and all mirrors are level and
plumb,
• The middle of the defined area and the center point of
the 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
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Component #2
(Mirror)
Reduced
Resolution
Setting
Maximum Size
of Undetected
Objects
Resulting
Resolution
14 mm
Resolution
OFF
(Not applicable)
14 mm (0.55")
ON (2-beam)
8.5 mm (0.34")
30 mm (1.18")
30 mm
Resolution
OFF
(Not applicable)
30 mm (1.18")
ON (2-beam)
17 mm (0.67")
60 mm (2.36")
Model
Component #3
(Mirror)
!
Component #1
(Emitter)
Component #4
(Receiver)
Figure 3-12. Corner mirror alignment
WARNING . . . Use of Reduced
Resolution and Fixed Blanking
Use Reduced Resolution and Fixed Blanking
only when necessary. Any holes created in the
defined area either must be completely filled by the blanked
object or the separation distance must be increased to account
for the larger resolution (see Section 3.1.1).
3.4.3 Fixed Blanking
One or multiple areas within an EZ-SCREEN sensor pair may
be blanked out. The minimum number of beams between two
blanked areas is one. Any beam other than the sync beam
may be blanked. All beams of a fixed blanked area must stay
blocked at all times (after the fixed blanking programming
mode has been exited), in order for the OSSDs to stay ON.
Fixed Blanking Programming Procedure
1. From normal operation or a power OFF condition, move
the second and third DIP switches (the first RR and T/L)
both to the left (T and RR position). See Figure 3-14.
2. Move the fourth and fifth DIP switches (the second RR
and T/L) both to the right (L and OFF position).
3. The receiver should now either be in a lockout condition
or power is still OFF.
3.4.2 Reduced Resolution (Floating Blanking)
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 the
switch).
Reduced Resolution allows objects of a certain maximum size
P
to interrupt the defined area without causing a Trip condition
(i.e., the OSSDs turn OFF). Use Reduced Resolution only
when necessary. In Reduced Resolution applications, the
separation distance always increases due to the larger depth
penetration factor (Dpf). In either case see Section 3.1.1 to
determine separation distance.
5. Fixed Blanking configuration indicated by:
• Display alternates between “PFA” and the number of
blocked beams (“0” if all beams are clear).
(PFA = Program Fixed Blanking Active)
• Zone indicators active
• Yellow Reset indicator OFF
• Status indicator ON Red
With 2-beam Reduced Resolution enabled, any two consecutive
beams, (except for the sync beam), can be blocked without
causing a stop condition. Thus, multiple “holes” are created in
which 14 mm systems will “see” a 30 mm object and ignore an
8.5 mm object. Similarily, 30 mm systems will “see” a 60 mm
object and ignore a 17 mm object. See Figure 4-1 for DIP-switch
configuration.
6. Position object(s) to be blanked.
Figure 3-13. Optical alignment using the LAT-1
Q
7. When beams are blocked, the 7-segment display
alternates between “PFA” and the number of blocked
beams. The zone indicators remain active and denote the
location of blocked beams.
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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: PFC ON solid (PFC = Program Fixed Blanking
Complete)
• Zone indicators flash approximate location of fixed
blanked area programmed
• Reset indicator single-flashing Yellow
• Status indicator single-flashing Red
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 T/L and RR switches as
shown.
3. Press the Reset button or cycle
power.
4. Reconfigure DIP switches for
normal operation.
5. Press the Rest button or cycle
power.
1. Select the proper test piece (see table above), supplied with
the receiver.
2. Verify that the System 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.
Figure 3-14. DIP switch configuration to program fixed blanking
3.4.4 Trip Test
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).
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.
Appropriate Test Pieces for Trip Test
14 mm
Resolution
Models
30 mm
Resolution
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
Reduced
Resolution
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.
!
WARNING . . . If Trip Test Indicates a
Problem
If the EZ-SCREEN System does not respond
properly to the trip test, do not attempt to use
the System.
If this occurs, the System cannot be relied on to stop
dangerous machine motion when a person or object enters the
defined area.
Serious bodily injury or death could result.
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EZ-SCREEN
Installation and Alignment
Instruction Manual
3.5 Electrical Interface to the Guarded Machine
(Permanent Hookup)
Test Piece
Emitter
Make the electrical connections as described in Sections 3.5.1
to 3.5.6 as required by each individual application.
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.
Receiver
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 3.4.3.
The final connections to be made are:
• OSSD outputs
• FSD interfacing
• MPCE/EDM connections
Trip Test with Corner Mirror
• Optional remote Test
!
Receiver
Emitter
Mirror #1
Figure 3-15. EZ-SCREEN trip test
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.
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EZ-SCREEN
Instruction Manual
!
CAUTION . . . 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.
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 3-18.
Refer to the output specifications in Section 2.6 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 3-18.
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
Installation and Alignment
machine’s safety related control system that includes the
EZ-SCREEN.
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 Figures 3-19 and 3-20.)
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
short-circuit 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:
• Physically separating interconnecting control wires from
each other and from secondary sources of power.
• Routing interconnecting control wires in separate conduit,
runs, or channels.
• Locating all elements (modules, switches, and devices under
control) within one control panel, adjacent to each other, and
directly connected with short wires.
• Properly installing multi-conductor cabling and multiple
wires through strain relief fittings. (Over-tightening of a
strain-relief can cause short-circuits at that point.)
• Using positive-opening or direct-drive components, installed
and mounted in a positive mode.
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EZ-SCREEN
Installation and Alignment
3.5.3 Machine Primary Control Elements and EDM Inputs
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, see Section 3.3.1)
must take into account the slower of the two channels. Some
machines offer only one Primary Control Element. For such
machines, it is necessary to duplicate the circuit of the single
MPCE, by adding a second. Refer to Figures 3-19 and 3-20 or
consult the machine manufacturer for additional information.
External Device Monitoring: It is strongly recommended that
one normally closed, forced-guided monitoring contact of
each FSD and MPCE be connected to EDM inputs (see Figures
3-18, 3-19, and 3-20). If this is done, proper operation of
the MPCEs will be verified. Monitoring MPCE contacts is one
method of maintaining control reliability.
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 3-18, 3-19, and 3-20). If this is done,
proper operation of the FSDs and MPCEs will be verified.
Monitoring MPCE contacts is one method of maintaining
control reliability. (See the Note Regarding External Device
Monitoring below).
NOTE: External Device Monitoring and Control Reliability
Control Reliability (OSHA 29CFR1910.217, ANSI B11, and
ANSI/RIA R15.06) and Category 3 and 4 (ISO13849-1)
requirements demand that a single failure does not lead to the
loss of the safety function, or does not prevent a normal or
immediate stop from occurring. The failure or the fault must
be detected at or before the next demand of safety (e.g., at the
beginning or end of a cycle, or when a safeguard is actuated).
The safety-related function of the machine control then
must issue an immediate stop command or prevent the next
machine cycle or hazardous situation until the failure or fault
is corrected. The user must refer to the relevant standard(s)
for complete information.
A common method of satisfying these requirements is the use
of dual-channel control, as described in Section 3.5.2, with
External Device Monitoring, where a normally closed, forcedguided contact of each MPCE is wired as described in Section
3.5.3 and as shown in Figures 3-19 and 3-20.
Instruction Manual
Receiver pins 2 and 3 of the receiver terminal block provide
connection for the external device monitoring input. External
Device Monitoring (EDM) must be wired in one of three
configurations and must agree with the DIP switch EDM
settings on the receiver (see Section 4.2). One- and TwoChannel EDM are used when the EZ-SCREEN OSSD outputs
directly control the energizing and de-energizing of the
guarded machine’s MPCEs.
• One-Channel Monitoring is a series connection of closed
monitor contacts that are forced-guided (mechanically
linked) from each device controlled by the EZ-SCREEN. The
monitoring contacts should open within 200 milliseconds
of the OSSD outputs turning ON (a Clear condition) and
should close within 200 milliseconds of the OSSD outputs
turning OFF (a Blocked condition) or a Lockout will occur
(see Diagnostics, Section 5.1). Refer to Figure 3-20 for
One-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.
• Two-Channel Monitoring is a separate connection of closed
monitor contacts that are forced-guided (mechanically
linked) from each device controlled by the EZ-SCREEN. The
monitoring contacts should always change state (both open
or both close) within 200 milliseconds of the corresponding
OSSD state change (turning ON or OFF) or a Lockout will
occur (see Diagnostics, Section 5.1). Refer to Figures 3-18
or 3-19 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 setting initially, in order to perform
the initial checkout; see Section 3.6. If No Monitoring is
selected, the user must ensure that any single failure of the
external devices does not result in a hazardous condition
and, in such a case, a successive machine cycle will be
prevented (see Section 1.3, Control Reliability). To configure
the System for No Monitoring, set the configuration DIP
switch to E2, per Section 4.2, and connect (using the
supplied wire-nut) EDM1 (pin 3) to EDM2 (pin 2).
3.5.6 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
2.6.2, 3.3.1, and Figure 3-17.
!
CAUTION . . . 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.
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EZ-SCREEN
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3.6 Preparing for System Operation
Receiver
The operation of the EZ-SCREEN System with the guarded
machine must be verified before the combined System and
machine may be put into service. To do this, a Qualified
Person must perform the Commissioning Checkout
Procedure described in Section 6.2.
Individual 8-wire Cordsets
Emitter
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 System is ready for
testing in combination with the guarded machine.
QDE-8..D Cables
3.7 Sensor “Swapability” and the Optional Emitter Hookup
Bn
Figure 3-16 illustrates an optional hookup that provides
sensor interchangeability (or “swapability”) – the ability to
install either sensor at either QD connection.
Or/Bk
Or
Wh
Bk
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 (colorfor-color) to the receiver cable.
Gn/Ye
Vi
EDM2
EDM1
OSSD2
OSSD1
0V dc
Ground
Reset
Receiver
8-wire Splitter Cordsets
Emitter
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 MICROSCREEN® safety light screens. This hookup option provides
advantages during installation, wiring, and troubleshooting.
Bu
+24V dc
DEE2R..
CSB.. Splitter Cordset
See above or Section 2.2 for pinout
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 3-16. Emitters and receivers interchange easily when 8-pin
connectors are used for both (optional hookup)
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EZ-SCREEN
Installation and Alignment
Instruction Manual
Emitter (with TEST)
Emitter (standard)
8-pin male
Euro-style†
+24V dc
5-pin male
Euro-style†
0V dc
Bn (#1)
Gn/Ye (#7)
+24V dc
0V dc
Bn (Pin #1)
Bu (#6)
Gn/Ye (#5)
Bk (#5)
n.c.*
Wh (#4)
n.c.*
Vi (#8)
Or (#3)
n.c.*
Or/Bk (#2)
n.c.*
Bu (#3)
n.c.*
Bk (#4)
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).
†
open to test
Jumper or
See Table 2.2 for further cable information
Figure 3-17. Emitter; generic hookup
+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
0V dc
FSD
1
FSD
2
Single-Channel
Safety Stop
Circuit
Dual-Channel
Safety Stop
Circuit
See Table 2.2 for further
QDE-8..D cable information.
†
NOTE: Do not exceed OSSD maximum load
capacitance specification.
Figure 3-18. Generic hookup – FSDs (2-channel EDM, manual reset)
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Instruction Manual
!
WARNING . . . Use of
Transient Suppressors
Receiver
8-pin male Euro-style
face view†
Bn (Pin #1)
+24V dc
0V dc
Gn/Ye (#7)
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.
Bu (#6)
Bk (#5)
Wh (#4)
Vi (#8)
Reset
Or (#3)
Or/Bk (#2)
IM-T-9A**
S3
S4
*Installation of transient (arc) suppressors
across the coils of MPCE1 and MPCE2 is
recommended (see Warning).
Machine
Control
**Other interfacing modules and solutions
available, see Section 2.3 or the
Banner Safety Catalog.
See Table 2.2 for further QDE-8..D cable information.
†
S1
K2
K1
S2
Y3
Y4
Y1
Y2
13
14
23
24
MPCE
2
33
34
*
MPCE
1
*
Feedback (optional)
Figure 3-19. Generic hookup – interface module (2-channel EDM, manual reset)
!
WARNING . . . Use of
Receiver
8-pin male Euro-style
face view†
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.
+24V dc
0V dc
Bn (Pin #1)
Gn/Ye (#7)
Bu (#6)
Bk (#5)
Wh (#4)
Vi (#8)
Reset
Or (#3)
Or/Bk (#2)
not
connected
*Installation of transient (arc) suppressors
across the coils of MPCE1 and MPCE2 is
recommended (see Warning).
**Other interfacing modules and solutions
available, see Section 2.3 or the
Banner Safety Catalog.
See Table 2.2 for further QDE-8D cable information.
†
IM-T-9A**
S1
S3
K2
Machine
Control
K1
S4
S2
Y3
Y4
Y1
Y2
13
14
23
24
MPCE
2
33
34
*
MPCE
1
*
Feedback (optional)
Figure 3-20. Generic hookup – interface module (1-Channel EDM, manual reset)
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System Operation
EZ-SCREEN
Instruction Manual
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:
• Perform manual resets and hold possession of the reset key
(see Section 4.3), and
• Perform the Daily Checkout Procedure (see Section 6).
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:
• Install the EZ-SCREEN System,
• Perform all checkout procedures (see Section 6),
• Make changes to the internal configuration settings and
• Reset the System following a Lockout condition.
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 factory-installed 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 EZSCREEN 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.
Scan Code. 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
auto-reset. If the switches are set for Latch Output (L), the
System will require a manual reset.
External Device Monitoring (EDM): 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.
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)*
*(Default Setting)
See Figure 4-2 for access cover
opening instructions
Figure 4-1. EZ-SCREEN configuration switches (receiver shown)
NOTE: The corresponding pairs of DIP switches must be set
identically for the System to operate.
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Instruction Manual
Accessing the Configuration Panel
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 2.4, Replacement
Parts).
1. Remove Security
Plate
1
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.
4.3.1 Receiver Resets
The EZ-SCREEN receiver has a Reset input, pin 8 (Violet
wire), that allows the System to be manually reset.
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:
2-3. Open Access
Cover
• 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.
Reset Routine
2
3
Figure 4-2. Accessing the configuration switches
To reset the receiver, close the reset switch for 1/4 to 2
seconds, then open the switch. (If reset switch model MGAKS0-1, 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.
4.3.2 Emitter Resets
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
System Operation
Instruction Manual
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 7.6 (cascadeable
models only).
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.
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 Required
Status
Event
Status
Indicator
Diagnostic Display
Scan code flash 3x –
alternates
Power-up
Apply
power
Red singleflash
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.
Run Mode
Passes
internal
tests
Green
Dash
Test Mode
Flashing
Green
Dash
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
Display indicates the receiver’s Trip (–) or Latch (L)
Open Test
switch
Lockout
Internal/
external
fault
Flashing
Red
Displays error code
(see Section 5.1)
Operating
Mode
Required
Event
Reset
Status
Indicator Indicator
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
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
Flashing
Continues
previous
reading
Continues
previous
reading
Continues
previous
reading
Continues
previous
reading
Flashing
Displays error code (see Section 5.1)
ON
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.
Figure 4-4. Receiver status indicator operation (Trip Output configured)
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EZ-SCREEN
System Operation
Instruction Manual
Operating
Mode
Required
Event
Reset
Status
Indicator Indicator
Zone
Indicators*
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
Red
All ON Green
OFF
Run Mode –
Clear
Perform
reset
ON
Green
All ON Green
OFF
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
DoubleFlash
Noise Detected –
Reset Interface
Noise Detected –
EDM Interface
Lockout
Internal/
external fault
OFF
Flashing
Red
OFF
OSSD
Outputs
Diagnostic Displays
then
or
then
OFF
OFF
Total number of blocked beams
OFF
OFF
OFF
OFF
OFF
ON
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.
Figure 4-5. Receiver status indicator operation (Latch Output configured)
Inverted Display
In some applications, it is advantageous to mount the emitter
and receiver upside down (with the status indicator ends at
the “top”). This could present a problem when monitoring the
status display, so EZ-SCREEN receivers and emitters have the
option of inverting their 7-segment display character(s). The
Invert Display push button, located next to the DIP switches
under the access cover, requires just a single push (100 ms
or longer) to invert the display characters from their current
position. See Figure 4-6.
An access cover and display label that accommodates this
inversion is provided with each emitter and receiver, in their
hardware packets (also see Section 2.4 Replacement Parts).
Place the inverted display label on top of the existing display
label. Replace the standard access cover with the supplied
inverted-label version by removing the screw-on security plate,
gently pulling out the access cover and snapping the new
cover into place.
Figure 4-6. Inverted display showing the number 10
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EZ-SCREEN
System Operation
4.5 Normal Operation
System Power-Up
The System will power up in one of two ways, depending on
the Trip/Latch Output configuration. If the System is set for
Trip Output, it will power up and reset automatically; if the
System 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 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 System 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 System 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 doubleflash to indicate the System is waiting for a manual reset.
After a valid manual reset, the System enters RUN mode and
continues scanning.
Instruction Manual
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 System 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 System 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.
During RUN Mode
Trip Output Configuration: If any beams become blocked
while the System is running with Trip Output selected, the
receiver outputs turn OFF within the stated System 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 System is running with Latch Output selected, the
receiver outputs turn OFF within the stated System 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 System 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 System will wait for a manual reset; when
a valid reset signal is received and all beams remain clear, the
receiver outputs turn ON.
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Troubleshooting and Maintenance
EZ-SCREEN
Instruction Manual
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).
The System provides easy methods for determining operating
problems. A Lockout condition is indicated by the following:
Emitter
Status indicator
Diagnostic Display
Flashing Red
Error code (flashing)
Receiver
Reset indicator
Status indicator
Zone Indicators
Diagnostic Display
OFF
Flashing Red
OFF
Error code (flashing)
Recovery Procedures
To recover from a Lockout condition, all errors must be
corrected and sensor resets must be performed as shown
below.
!
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 System 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 System
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 System while the
hazardous machinery is operational could result in serious
bodily injury or death.
Receiver Reset
Close the receiver Reset switch for 1/4 to 2 seconds and then
open the switch (per Section 4.2), 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 System
is set for Latch Output, a manual reset, as described in
Section 4.4, is required to resume full operation.
Emitter Reset
Power the sensor down, wait a second or two, and then
power it up.
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Troubleshooting and Maintenance
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:
• one or both outputs being shorted
to a power supply (high or low),
• by shorting OSSD 1 to OSSD 2, or
• by an overload (greater than 0.5A).
• Disconnect the OSSD loads and reset the receiver.
• 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.
• Verify that the reset switch is in the open position.
• Reset the receiver per Section 4.3.
• 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:
• EDM wiring configuration does not
match the EDM switch
configuration.
• No connection to EDM connections.
• Both EDM inputs fail to respond
within 200 ms of the OSSDs
changing state (ON or OFF).
• Excessive noise on EDM inputs.
• Verify that the EDM configuration switches are set correctly and that the
wiring is correct for the EDM type configured (see Section 3.5.3).
• Reset the receiver.
• 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.
• Perform a reset per Section 4.3.
• 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.
• Verify that the DIP switch settings are valid (per Section 4.2). Make any
corrections 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.
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EZ-SCREEN
Instruction Manual
Troubleshooting and Maintenance
5.1.1 Receiver Error Codes (continued)
EDM 1 Error
This error can occur due to EDM
1 input signal failing to respond
within 200 ms of OSSD 1 changing
state (ON or OFF) or by EDM 1 input
signal changing state when OSSD 1
did not change.
• 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, 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).
EDM 2 Error
This error can occur due to EDM 2
input signal failing to respond within
200 ms of OSSD 2 changing state
(ON or OFF), or by the EDM 2 input
signal changing state when OSSD 2
did not change.
• 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, 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.
• Reposition the object and perform a key reset (or cycle power).
• Re-program (teach) the fixed blanked object(s), see Section 3.4.3.
Programming Timeout Error
This error occurs when the Fixed
Blanking programming mode (teach)
exceeds the ten-minute limit.
• Re-program (teach) the fixed blanked object(s), see Section 3.4.3.
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.
• Configure ONLY 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 7.6.
• Re-configure the first receiver to adapt system to changes or replacement of
other receivers, see Section 7.6.
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EZ-SCREEN
Instruction Manual
5.1.1 Receiver Error Codes (continued)
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.
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.
• Perform a reset per Section 4.3.
• 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.
• Check operation of Channel A and Channel B of cascade input.
• Cycle power or cycle the input. See Sections 7.7 and 7.8.
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.
• Reset the emitter by cycling power to the emitter (see Section 4.3.2).
• 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 (pin 5).
• If the sensor has a good earth ground connection to pin 5, 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.
• Reset the emitter by cycling power to the emitter (see Section 4.3.2).
• 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 (pin 5).
• If the sensor has a good earth ground connection to pin 5, 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.
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EZ-SCREEN
Instruction Manual
Troubleshooting and Maintenance
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 3.5.6 and Figure 3-17. (However, on a 10-beam
system only, the Zone 1 indicator will be Green, and all others
Red.
Dash
Flashing Green
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.
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:
• If the voltage is 10 to 30V dc, the emitter should be in Run
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.
• If the voltage is less than 3V dc, the emitter should be in
Test 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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Troubleshooting and Maintenance
EZ-SCREEN
Instruction Manual
5.3 Electrical and Optical Noise
5.4 Servicing and Maintenance
The EZ-SCREEN System 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 EZSCREEN System will respond to noise only if the noise is
detected on multiple consecutive scans.
Cleaning
If random nuisance Trips occur, check the following:
The EZ-SCREEN System is 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.
• Poor connection between the sensor and earth ground;
• Optical interference from adjacent light screens or other
photoelectrics; or
• Sensor input or output wires routed too close to “noisy”
wiring.
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 System 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 System wires from high-voltage
wires.
The Banner model BT-1 Beam Tracker (see Section 2.3) 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.
EZ-SCREEN System 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 a System 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
Phone: 763.544.3164 or
Toll-Free (US only): 888.373.6767
email: sensors@bannerengineering.com
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.
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.
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Checkout Procedure
EZ-SCREEN
Instruction Manual
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).
To prepare the System for this checkout:
6.1 Schedule of Checkouts
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.
Trip Test: The procedure for EZ-SCREEN System trip test is
described in Section 3.4.4. This procedure must be performed
at installation, and at any time the System, 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 System 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 System 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 of the System. 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 System
installation (after the System 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 System 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.
1. Examine the guarded machine to verify that it is of a type
and design compatible with the EZ-SCREEN System. See
Section 1.2 for a list of misapplications.
2. Verify the EZ-SCREEN System is configured for the
intended application (see Section 4.2).
4. Verify that:
• Access to any dangerous parts of the guarded machine is
not possible from any direction not protected by the
EZ-SCREEN System, hard guarding, or supplemental
safeguarding, and
• It is not possible for a person to stand between the
defined area and the dangerous parts of the machine, or
• Supplemental safeguarding and hard guarding, 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
System (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 System 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 System 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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47
Checkout Procedure
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
(defined
All Zone indicators ON Green
area clear) Reset flashing Yellow
* 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 System.
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 System.
EZ-SCREEN
Instruction Manual
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 System/
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 setup 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 www.bannerengineering.com.
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 System 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 www.
bannerengineering.com.
Banner Engineering Corp. • Minneapolis, U.S.A.
48
P/N 112852 rev. C
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EZ-SCREEN
Instruction Manual
Cascadeable 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.
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.
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 TEST are
available.
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.
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 7.7 and 7.8).
Available single-ended, double-ended, and splitter cables are
listed in Section 2.2. Power cable length as well as the length
for the interconnect cables are limited; see Section 7.3 for
more information.
7.1.2 Receiver Display
A cascaded receiver display in Run Mode, shows:
No beams blocked, Latch Mode: “L”
No beams blocked, Trip Mode: “–“
Blocked receiver in a cascade: number of blocked beams
Receivers between the blocked one and the machine: “|---|”
(Flashing “|---|”: see Section 5.1.1.)
Figure 7-1. Multiple cascaded light screens used to guard two areas of one machine (power press cross-section, receivers
only shown using EZA-MBK-21 “L” mounting bracket system)
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www.bannerengineering.com • Tel: 763.544.3164
P/N 112852 rev. C
49
Cascadeable EZ-SCREEN
EZ-SCREEN
Instruction Manual
7.2 Cascadeable Emitter and Receiver Models
For cabling options, see Section 2.2.
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.
Defined
Area
Height*
14 mm Resolution Models
Sensor
0.1 m to 6 m (4" to 20') range
5-pin Emitter
Connector**
8-pin Emitter
Connector***
Number of
Beams
Response
Time (Tr)
300 mm
(11.8")
Emitter
Receiver
Pair
SLSCE14-300Q5
SLSCR14-300Q8
SLSCP14-300Q85
SLSCE14-300Q8
SLSCR14-300Q8
SLSCP14-300Q88
40
15 ms
450 mm
(17.7")
Emitter
Receiver
Pair
SLSCE14-450Q5
SLSCR14-450Q8
SLSCP14-450Q85
SLSCE14-450Q8
SLSCR14-450Q8
SLSCP14-450Q88
60
19 ms
600 mm
(23.6")
Emitter
Receiver
Pair
SLSCE14-600Q5
SLSCR14-600Q8
SLSCP14-600Q85
SLSCE14-600Q8
SLSCR14-600Q8
SLSCP14-600Q88
80
23 ms
750 mm
(29.5")
Emitter
Receiver
Pair
SLSCE14-750Q5
SLSCR14-750Q8
SLSCP14-750Q85
SLSCE14-750Q8
SLSCR14-750Q8
SLSCP14-750Q88
100
27 ms
900 mm
(35.4")
Emitter
Receiver
Pair
SLSCE14-900Q5
SLSCR14-900Q8
SLSCP14-900Q85
SLSCE14-900Q8
SLSCR14-900Q8
SLSCP14-900Q88
120
32 ms
1050 mm
(41.3")
Emitter
Receiver
Pair
SLSCE14-1050Q5
SLSCR14-1050Q8
SLSCP14-1050Q85
SLSCE14-1050Q8
SLSCR14-1050Q8
SLSCP14-1050Q88
140
36 ms
1200 mm
(47.2")
Emitter
Receiver
Pair
SLSCE14-1200Q5
SLSCR14-1200Q8
SLSCP14-1200Q85
SLSCE14-1200Q8
SLSCR14-1200Q8
SLSCP14-1200Q88
160
40 ms
1350 mm
(53.1")
Emitter
Receiver
Pair
SLSCE14-1350Q5
SLSCR14-1350Q8
SLSCP14-1350Q85
SLSCE14-1350Q8
SLSCR14-1350Q8
SLSCP14-1350Q88
180
43 ms
1500 mm
(59.0")
Emitter
Receiver
Pair
SLSCE14-1500Q5
SLSCR14-1500Q8
SLSCP14-1500Q85
SLSCE14-1500Q8
SLSCR14-1500Q8
SLSCP14-1500Q88
200
48 ms
1650 mm
(65.0")
Emitter
Receiver
Pair
SLSCE14-1650Q5
SLSCR14-1650Q8
SLSCP14-1650Q85
SLSCE14-1650Q8
SLSCR14-1650Q8
SLSCP14-1650Q88
220
52 ms
1800 mm
(70.9")
Emitter
Receiver
Pair
SLSCE14-1800Q5
SLSCR14-1800Q8
SLSCP14-1800Q85
SLSCE14-1800Q8
SLSCR14-1800Q8
SLSCP14-1800Q88
240
56 ms
*150 mm SLSC.. systems not available.
**5-pin emitters feature Test input.
***8-pin emitters feature “swapable” hookup; see Sections 3.3.1 and 3.7.
Banner Engineering Corp. • Minneapolis, U.S.A.
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P/N 112852 rev. C
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Cascadeable EZ-SCREEN
EZ-SCREEN
Instruction Manual
7.2 Cascadeable Emitter and Receiver Models (continued)
Defined
Area
Height*
30 mm Resolution Models
Sensor
0.1 m to 18 m (4" to 60') range
5-pin Emitter
Connector**
8-pin Emitter
Connector***
Number of
Beams
Response
Time (Tr)
300 mm
(11.8")
Emitter
Receiver
Pair
SLSCE30-300Q5
SLSCR30-300Q8
SLSCP30-300Q85
SLSCE30-300Q8
SLSCR30-300Q8
SLSCP30-300Q88
20
11 ms
450 mm
(17.7")
Emitter
Receiver
Pair
SLSCE30-450Q5
SLSCR30-450Q8
SLSCP30-450Q85
SLSCE30-450Q8
SLSCR30-450Q8
SLSCP30-450Q88
30
13 ms
600 mm
(23.6")
Emitter
Receiver
Pair
SLSCE30-600Q5
SLSCR30-600Q8
SLSCP30-600Q85
SLSCE30-600Q8
SLSCR30-600Q8
SLSCP30-600Q88
40
15 ms
750 mm
(29.5")
Emitter
Receiver
Pair
SLSCE30-750Q5
SLSCR30-750Q8
SLSCP30-750Q85
SLSCE30-750Q8
SLSCR30-750Q8
SLSCP30-750Q88
50
17 ms
900 mm
(35.4")
Emitter
Receiver
Pair
SLSCE30-900Q5
SLSCR30-900Q8
SLSCP30-900Q85
SLSCE30-900Q8
SLSCR30-900Q8
SLSCP30-900Q88
60
19 ms
1050 mm
(41.3")
Emitter
Receiver
Pair
SLSCE30-1050Q5
SLSCR30-1050Q8
SLSCP30-1050Q85
SLSCE30-1050Q8
SLSCR30-1050Q8
SLSCP30-1050Q88
70
21 ms
1200 mm
(47.2")
Emitter
Receiver
Pair
SLSCE30-1200Q5
SLSCR30-1200Q8
SLSCP30-1200Q85
SLSCE30-1200Q8
SLSCR30-1200Q8
SLSCP30-1200Q88
80
23 ms
1350 mm
(53.1")
Emitter
Receiver
Pair
SLSCE30-1350Q5
SLSCR30-1350Q8
SLSCP30-1350Q85
SLSCE30-1350Q8
SLSCR30-1350Q8
SLSCP30-1350Q88
90
25 ms
1500 mm
(59.0")
Emitter
Receiver
Pair
SLSCE30-1500Q5
SLSCR30-1500Q8
SLSCP30-1500Q85
SLSCE30-1500Q8
SLSCR30-1500Q8
SLSCP30-1500Q88
100
27 ms
1650 mm
(65.0")
Emitter
Receiver
Pair
SLSCE30-1650Q5
SLSCR30-1650Q8
SLSCP30-1650Q85
SLSCE30-1650Q8
SLSCR30-1650Q8
SLSCP30-1650Q88
110
30 ms
1800 mm
(70.9")
Emitter
Receiver
Pair
SLSCE30-1800Q5
SLSCR30-1800Q8
SLSCP30-1800Q85
SLSCE30-1800Q8
SLSCR30-1800Q8
SLSCP30-1800Q88
120
32 ms
*150 mm SLSC.. systems not available.
**5-pin emitters feature Test input.
***8-pin emitters feature “swapable” hookup; see Sections 3.3.1 and 3.7.
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
P/N 112852 rev. C
51
Cascadeable EZ-SCREEN
EZ-SCREEN
Instruction Manual
7.3 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.
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 possible; please call factory for assistance.
Machine Interface Cable (L1)
QDE-..D
1'
3'
15'
25'
50'
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
50'
L2
EZ-SCREEN
Position #1
L1
Machine
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'
25'
EZ-SCREEN
Position #3
Recommended cable pairing per side of cascaded system
L3
L2
L3
L2
L3
L2
L3
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'
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)
L2
Max. L2*
L3
EZ-SCREEN
Position #2
15'
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
Control
Figure 7-3. Cable length options for three cascaded light screens
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P/N 112852 rev. C
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Cascadeable EZ-SCREEN
EZ-SCREEN
Instruction Manual
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-SCREENs 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
L2
L3
L4
L2
L3
L4
L2
L3
L4
L2
L3
L4
1'
110'
1'
1'
105'
1'
1'
75'
1'
1'
45'
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'
Individual
DEE2R-..D cables
Max. L3*
Sensor
Interconnect
Cables (L2, L3
and L4)
*Multiple DEE2R-..D cables may be required.
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'
EZ-SCREEN
Position #4
L4
EZ-SCREEN
Position #3
L3
EZ-SCREEN
Position #2
L2
EZ-SCREEN
Position #1
L1
Machine
Control
Figure 7-4. Cable length options for four cascaded light screens
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P/N 112852 rev. C
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Cascadeable EZ-SCREEN
7.4 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:
• Individually for each light screen in the cascade (separation
distance is calculated for each light screen in the cascade),
or
• Based on the worst-case time for the entire cascade (all light
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.
EZ-SCREEN
Instruction Manual
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.
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.
EZ-SCREEN
Position #4
15 + 2 + 2 + 2 = 21
21 ms response
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:
EZ-SCREEN
Position #3
15 + 2 + 2 = 19
19 ms response
Position #1: Ds = K (Ts + Tr) + Dpf
EZ-SCREEN
Position #2
15 + 2 = 17
17 ms response
Position #2: Ds = K (Ts + Tr + 2 ms) + Dpf
Position #3: Ds = K (Ts + Tr + 4 ms) + Dpf
Position #4: Ds = K (Ts + Tr + 6 ms) + Dpf
NOTE: Light screens of other
lengths/resolution
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) x 2]
15 + 6 = 21
21 ms response
Figure 7-5. Calculating the individual response times of four, 14 mm
resolution, 300 mm cascaded Safety Light Screens
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Cascadeable EZ-SCREEN
EZ-SCREEN
Instruction Manual
Cascade Configuration vs. Response Time
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.
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.
EZ-SCREEN
Position #3
15 + 2 + 2 = 19
Individual Response
Time: 19 ms
EZ-SCREEN
Position #3
15 + 2 + 2 = 19
Individual Response
Time: 19 ms
EZ-SCREEN
Position #3
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
EZ-SCREEN
Position #1
Individual Response
Time: 15 ms
Machine
Control
EZ-SCREEN
Position #1
Individual Response
Time: 15 ms
Machine
Control
EZ-SCREEN
Position #1
Individual Response
Time: 40 ms
Machine
Control
System Overall Response Time for all systems shown here is 40 + [(3-1) x 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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Cascadeable EZ-SCREEN
7.5 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, and this is the only receiver
that requires a reset following a latch condition.
7.5.1 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.
EZ-SCREEN
Instruction Manual
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 (T/L and RR) both to the
left (T and RR 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:
• First receiver display shows
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
• Last cascaded receiver display shows
Terminator connected: “1C” ON steady
E-stop w/closed contacts: “1CE” ON steady
E-stop w/open contacts:“1CE” flashing
• Other receivers display “1C” ON steady
• All receiver Zone indicators OFF
7.6 Programming for Cascaded Operation
• All receiver Yellow reset indicators OFF
Each cascaded system must be programmed, before it can be
run in a production environment.
• All receiver Status indicators solid red
Before programming, 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 7.7 and 7.8).
!
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).
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
With Power ON:
2. Set T/L and RR switches as
shown on first receiver only
3. Press the Reset button or cycle
power
4. Reconfigure DIP switches for
normal operation
If not, a receiver may synchronize to the signal from the
wrong emitter, reducing the safety function of the light
screen.
5. Press the Reset button or cycle
power
This situation will be discovered by performing the trip test
(see Section 3.4.3).
Figure 7-7. DIP switch programming to enable cascade installation
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Cascadeable EZ-SCREEN
EZ-SCREEN
Instruction Manual
7.7 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
!
WARNING … Multiple E-Stop Switches
• Whenever two or more E-stop switches are connected
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.
E-Stop Switch Requirements (Positive-Opening)
bn
22 awg
wh
bu
bk
QDE2R4-8..D Cable Pin-Out*
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)
Brown (Ch 1a)
Black (Ch 1b)
Blue (Ch 2b)
n.c.
n.c.
n.c.
n.c.
White (Ch 2a)
*Standard M12/Euro-style cables (8-pin male QD) can also be used,
although pin verse 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.
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 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:
• Emergency Stop push buttons shall be located at each
operator control station and at other operating stations
where emergency shutdown shall be required.
• Stop and Emergency Stop push buttons shall be
continuously operable from all control and operating stations
where located.
• Actuators of Emergency Stop devices shall be colored Red.
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.
• The Emergency Stop actuator shall be a self-latching type.
NOTE: Some applications may have additional requirements.
The user must comply with all relevant regulations.
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Cascadeable EZ-SCREEN
7.8 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).
EZ-SCREEN
Instruction Manual
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. Positiveopening 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.
Open
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.
NOTE: This application is
considered to meet or
exceed requirements for
OSHA control reliability
and Safety categories 4
per ISO13849-1.
bn
wh
22 awg
bu
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QDE2R4-8..D Cable Pin-Out*
Pin #1 (+24V dc)
Brown (Ch 1a)
Pin #2 (EDM#2)
Black (Ch 1b)
Pin #3 (EDM#1)
Blue (Ch 2b)
Pin #4 (OSSD#2) n.c.
Pin #5 (OSSD#1) n.c.
Pin #6 (0V dc)
n.c.
Pin #7 (GND)
n.c.
Pin #8 (RESET)
White (Ch 2a)
Figure 7-9. Monitoring two positive-opening safety switches
Banner Engineering Corp. • Minneapolis, U.S.A.
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P/N 112852 rev. C
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Cascadeable EZ-SCREEN
EZ-SCREEN
Instruction Manual
7.8.1 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 controller
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 PICO-GUARD controller 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
controller 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 controller considers
the failure to be corrected. With the input requirements
Open
apparently satisfied, the controller allows a reset. This
system is no 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
controller 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 series-connected 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 controller outputs operate correctly throughout the check
procedure. Follow each gate closure with a manual reset, if
needed. If a contact set fails, the controller will not enable its
reset function. If the controller 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
QDE2R4-8..D Cable Pin-Out*
Brown (Ch 1a)
Pin #1 (+24V dc)
Pin #2 (EDM#2)
Black (Ch 1b)
Blue (Ch 2b)
Pin #3 (EDM#1)
Pin #4 (OSSD#2) n.c.
Pin #5 (OSSD#1) n.c.
n.c.
Pin #6 (0V dc)
Pin #7 (GND)
n.c.
White (Ch 2a)
Pin #8 (RESET)
bn
wh
22 awg
bu
*Standard M12/Euro-style cables (8-pin male QD)
can also be used, although pin verse color must
be verified.
bk
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 7.8.1) 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
Glossary of Terms
Instruction Manual
Glossary of Terms
ANSI (American National Standards Institute): 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.
Antirepeat: the part of the control system designed to limit
the machine to a single stroke or cycle if the tripping or
actuating means is held actuated.
Auto Power-Up: a safety light screen system feature which,
when switched ON, enables the system to be powered up
(and recover from a power interruption) without requiring a
manual reset. When Auto Power-Up is ON, the safety light
screen controller automatically begins internal diagnostics
upon power-up, and automatically resets the system if it
passes the diagnostic check. When Auto Power-up is OFF, a
manual reset is required.
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.
Blocked Condition: A safety light screen condition, 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.
Brake: a mechanism for stopping or preventing motion.
Cascade: Series connection (or “daisy-chaining”) of multiple
emitters and receivers.
CE: “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.
Control Reliability: A method of ensuring the performance
integrity of a control system. 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: 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.
Defined Area: the “screen of light” generated between the
emitter and receiver of a safety light screen system. When the
defined area is interrupted by an opaque object of a specified
cross section, a Trip or Latch condition results.
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.)
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.
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.
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.
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.
Floating Blanking: see Reduced Resolution.
FMEA (Failure Mode and Effect 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.
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EZ-SCREEN
Instruction Manual
Glossary of Terms
Forced-Guided Contacts: relay contacts that are mechanically
linked, so that when the relay coil is energized or deenergized, all of the linked contacts move together. If one
set of contacts in the relay becomes immobilized, no other
contact of the same relay will be able to move. The function of
forced-guided contacts is to enable the safety circuit to check
the status of the relay. Forced-guided contacts are also known
as “positive-guided contacts,” “captive contacts,” “locked
contacts,” or “safety relays.”
Machine Primary Control Element (MPCE): an electricallypowered 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.
Full-Revolution Devices: a method of machine drive arranged
such that, once started, the machine can be stopped only
when the full cycle is complete. Examples include positive key
clutches and similar mechanisms. Banner safety light screen
systems may not be used with full-revolution devices.
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 light screen system.
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 the ON state following a
Lockout condition. Also refers to the act of using the switch
to reset a safety system from a Latch condition.
Latch 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 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.)
Lockout Condition: a safety light screen system condition that
is automatically attained in response to certain failure signals
(an internal lockout). When a Lockout condition occurs, the
safety light screen system’s safety outputs turn OFF, and a
manual reset is required to return the system to RUN mode.
Machine Operator: an individual who performs production
work and who controls operation of the machine.
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 by being brought to
rest.
Muting: the automatic suspension of the safeguarding
function of a safety device during a non-hazardous portion of
the machine cycle.
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.
Point-of-Operation Guarding: safeguards, such as hard
guards or safety light screens, which are designed to protect
personnel from hazardous machine motion when close to the
machine’s point of operation.
Power-Up/Power-Interrupt Lockout: a Lockout condition of
a safety light screen system that, if Auto Power-up is OFF,
occurs when the system is powered up (including powerups after a loss of power). Requires a manual reset by a
Designated Person.
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
P/N 112852 rev. C
61
Glossary of Terms
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
presence-sensing 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 presence-sensing 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.
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 self-checking.
EZ-SCREEN
Instruction Manual
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.
Single-Stroke Press: See full-revolution devices.
Single-Cycle Machine: a machine which is limited by antirepeat control to one complete work-performing cycle for
each machine actuation, even if the actuator is continuously
operated.
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.
TUV (Technischer Überwachungsverein): independent testing
and certification organization providing EMC and product
safety testing, certification, and quality management systems
registration.
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.
Banner Engineering Corp. • Minneapolis, U.S.A.
62
P/N 112852 rev. C
www.bannerengineering.com • Tel: 763.544.3164
EZ-SCREEN
Instruction Manual
Notes
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
P/N 112852 rev. C
63
Notes
EZ-SCREEN
Instruction Manual
Banner Engineering Corp. • Minneapolis, U.S.A.
64
P/N 112852 rev. C
www.bannerengineering.com • Tel: 763.544.3164
SOURCES
OSHA Documents
Superintendent of Documents
Government Printing Office
P.O. Box 371954
Pittsburgh, PA 15250-7954
Tel: (202) 512-1800
http://www.osha.gov
ANSI Accredited Standards
American National Standards Institute
(ANSI)
11 West 42nd Street
New York, NY 10036
Tel: (212) 642-4900
http://www.ansi.org
B11 Documents
Safety Director
The Association for Manufacturing
Technology (AMT)
7901 Westpark Drive
McLean, VA 22102
Tel: (703) 893-2900
http://www.mfgtech.org
U.S. Application Standards
ANSI B11.1 Mechanical Power Presses
ANSI B11.2 Hydraulic Power Presses
ANSI B11.3 Power Press Brakes
ANSI B11.4 Shears
ANSI B11.5 Iron Workers
ANSI B11.6 Lathes
ANSI B11.7 Cold Headers and Cold Formers
ANSI B11.8 Drilling, Milling, and Boring
ANSI B11.9 Grinding Machines
ANSI B11.10 Metal Sawing Machines
ANSI B11.11 Gear Cutting Machines
ANSI B11.12 Roll Forming and Roll
Bending Machines
ANSI B11.13 Single- and Multiple-Spindle
Automatic Bar and Chucking Machines
ANSI B11.14 Coil Slitting Machines
ANSI B11.15 Pipe, Tube, and Shape
Bending Machines
ANSI B11.16 Metal Powder Compacting
Presses
ANSI B11.17 Horizontal Extrusion
Presses
ANSI B11.18 Machinery and Machine
Systems for the Processing of Coiled
Strip, Sheet, and Plate
ANSI B11.19 Performance Criteria for
Safeguarding
ANSI B11.20 Manufacturing Systems
ANSI B11.21 Machine Tools Using Lasers
ANSI B11.22 Numerically Controlled
Turning Machines
ANSI B11.23 Machining Centers
ANSI B11.24 Transfer Machines
ANSI B11.TR3 Risk Assessment
ANSI/RIA R15.06 Safety Requirements
for Industrial Robots and Robot Systems
NFPA 79 Electrical Standard for Industrial
Machinery
RIA Documents
Robotics Industries Association (RIA)
900 Victors Way, P.O. Box 3724
Ann Arbor, MI 48106
Tel: (734) 994-6088
http://www.robotics.org
NFPA Documents
National Fire Protection Association
1 Batterymarch Park
P.O. Box 9101
Quincy, MA 02269-9101
Tel: (800) 344-3555
http://www.nfpa.org
Alternate sources for these, plus
ISO, IEC, EN, DIN, & BS Standards:
Global Engineering Documents
15 Inverness Way East
Englewood, CO 80112-5704
Tel: (800) 854-7179
http://www.global.ihs.com
National Standards Systems Network
(NSSN)
25 West 43rd Street
New York, NY 10036
Tel: (212) 642-4980
http://www.nssn.com
Document Center, Inc.
111 Industrial Road, Suite 9
Belmont, CA 94002
Tel: (650) 591-7600
http://www.document-center.com
OSHA Regulations
OSHA Documents listed are part of:
Code of Federal Regulations Title 29, Parts
1900 to 1910
OSHA 29 CFR 1910.212 General Requirements for (Guarding of) All Machines
OSHA 29 CFR 1910.147 The Control of
Hazardous Energy (lockout/tagout)
OSHA 29 CFR 1910.217 (Guarding of)
Mechanical Power Presses
International/European Standards
ISO/TR 12100-1 & -2 (EN 292-1 & -2)
Safety of Machinery – Basic Concepts,
General Principles for Design
ISO 13852 (EN 294) Safety Distances
ISO 14121 (EN 1050) Principles of Risk
Assessment
ISO 14119 (EN 1088) Interlocking
. . . Upper Limbs
Devices Associated with Guards
– Principles for Design and Selection
ISO 13850 (EN 418) Emergency Stop
IEC/EN 60204-1 Electrical Equipment of
Devices, Functional Aspects – Principles
for Design
ISO/DIS 13851 (EN 574) Two-Hand
Control Devices – Functional Aspects
– Principles for Design
ISO 13853 (prEN 811) Safety Distances
. . . Lower Limbs
ISO 13849 (EN 954-1) Safety-Related
Parts of Control Systems
ISO/DIS 13855 (EN 999) The Positioning
of Protective Equipment in Respect to
Approach Speeds of Parts of the Human
Body
Machines Part 1: General Requirements
IEC/EN 61496 Electro-sensitive Protection
Equipment
IEC 60529 Degrees of Protection Provided
by Enclosures
IEC/EN 60947-5-1 Low Voltage
Switchgear – Electromechanical Control
Circuit Devices
IEC/EN 60947-1 Low Voltage Switchgear
– General Rules
WARRANTY: Banner Engineering Corp. warrants its products to be free from defects for one year. Banner Engineering Corp. will repair
or replace, free of charge, any product of its manufacture found to be defective at the time it is returned to the factory during the warranty
period. This warranty does not cover damage or liability for the improper application of Banner products. This warranty is in lieu of any
other warranty either expressed or implied.
P/N 112852 rev. C
Banner Engineering Corp., 9714 Tenth Ave. No., Mpls., MN 55441 • Ph: 763.544.3164 • www.bannerengineering.com • Email: sensors@bannerengineering.com
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