How it Works
Banner
Loading...
LS2tr30-1800Q8
Instruction Manual
62 pgs7.93 Mb0

Banner LS2e30-150Q8, LS2e30-1050Q8, LS2e30-1200Q8, LS2e30-1350Q8, LS2e30-1500Q8 Instruction Manual

...
Download
EZ-SCREEN® T
Instruction Manual
ype 2 Light Screen
Original Instructions 122452 Rev. D 3 December 2014
EZ-SCREEN® Type 2 Light Screen
Contents
1 About This Document .....................................................................................................
1.1 Important . . . Read This Before Proceeding! .................................................................................4
1.1.1 Use of Warnings and Cautions ...........................................................................................4
1.1.2 EC Declaration of Conformity (DoC) .................................................................................. 4
2 Introduction .................................................................................................................. 5
2.1 Features ................................................................................................................................. 5
2.2 System Description .................................................................................................................. 5
2.3 Appropriate Applications and Limitations ..................................................................................... 6
2.3.1 Examples: Appropriate Applications .................................................................................. 7
2.3.2 Examples: Inappropriate Applications ................................................................................7
2.4 Control Reliability and Safety Categories ...................................................................................... 7
2.5 Operating Features ....................................................................................................................8
2.5.1 Trip/Latch Output ...........................................................................................................8
2.5.2 Wiring Options for Emitter/Receiver Swapability ................................................................. 9
2.5.3 Manual Reset/Remote Test Input and EDM .........................................................................9
2.5.4 Status Indicators ............................................................................................................9
3 Mechanical Installation .................................................................................................11
3.1 Mechanical Installation Considerations .......................................................................................11
3.1.1 Calculating the Safety Distance (Minimum Distance) ...........................................................11
3.1.2 Reducing or Eliminating Pass-Through Hazards .................................................................14
3.1.3 Supplemental Safeguarding ............................................................................................15
3.1.4 Other Considerations ......................................................................................................15
3.2 Mounting System Components ..................................................................................................20
3.2.1 Overview of Emitter/Receiver Mounting Hardware ..............................................................20
3.2.2 Mounting and Initial Alignment of Emitter/Receiver Pairs .....................................................21
4 Electrical Installation and Testing ................................................................................ 23
4.1 Routing Cordsets .....................................................................................................................23
4.2 Initial Electrical Connections .................................................................................................... 23
4.3 Initial Checkout Procedure ........................................................................................................25
4.3.1 Configuring the System for Initial Checkout ......................................................................25
4.3.2 Initial Power-Up ............................................................................................................26
4.3.3 Optical Alignment ......................................................................................................... 26
4.3.4 Optical Alignment Procedure with Mirrors .........................................................................28
4.3.5 Trip Test ......................................................................................................................28
4.4 Electrical Connections to the Guarded Machine ...........................................................................29
4.4.1 OSSD Output Connections ............................................................................................. 30
4.4.2 FSD Interfacing Connections .......................................................................................... 30
4.4.3 Machine Primary Control Elements and EDM Input ..............................................................31
4.4.4 Manual Reset/Remote Test Input and EDM .......................................................................31
4.4.5 Preparing for System Operation ......................................................................................33
4.4.6 Commissioning Checkout ...............................................................................................33
4.5 Reference Wiring Diagrams .......................................................................................................34
4.5.1 Generic Emitter Wiring Diagram ......................................................................................34
4.5.2 Generic Wiring to FSDs (manual reset) ............................................................................ 35
4.5.3 Generic Wiring — Interface Module (2-Channel EDM, Manual Reset) .................................... 36
5 System Operation ........................................................................................................ 37
5.1 Security Protocol ....................................................................................................................37
5.2 Reset Procedures ................................................................................................................... 37
5.2.1 Receiver Resets ............................................................................................................37
5.2.2 Emitter Resets ..............................................................................................................37
5.3 Status Indicators ....................................................................................................................37
5.3.1 Receiver ......................................................................................................................38
5.3.2 Emitter ........................................................................................................................38
5.4 Normal Operation ...................................................................................................................39
5.4.1 System Power-Up .........................................................................................................39
5.4.2 Run Mode ....................................................................................................................39
5.4.3 Manual Reset Procedure ................................................................................................ 39
5.5 Periodic Checkout Requirements ...............................................................................................39
6 Troubleshooting and Maintenance ............................................................................... 40
6.1 Troubleshooting and Lockout Conditions ....................................................................................40
6.2 Recovery Procedures .............................................................................................................. 40
6.2.1 Receiver (System Reset) ................................................................................................40
6.2.2 Emitter Reset ...............................................................................................................40
4
EZ-SCREEN® Type 2 Light Screen
6.3 Electrical and Optical Noise ......................................................................................................41
6.3.1 Sources of Electrical Noise .............................................................................................
6.3.2 Sources of Optical Noise ................................................................................................ 42
6.4 Servicing and Maintenance ....................................................................................................... 42
6.4.1 Cleaning ......................................................................................................................42
6.4.2 Banner Engineering Corp Limited Warranty ...................................................................... 42
6.4.3 Warranty Service ..........................................................................................................42
6.4.4 Manufacturing Date .......................................................................................................42
6.4.5 Disposal ....................................................................................................................... 43
41
7 Checkout Procedure Schedule .......................................................................................44
7.1 Schedule of Checkouts ............................................................................................................44
8 Specifications and Accessories .................................................................................... 45
8.1 Specifications .........................................................................................................................45
8.1.1 General Specifications ................................................................................................... 45
8.1.2 Emitter Specifications ....................................................................................................45
8.1.3 Receiver Specifications ..................................................................................................45
8.1.4 Emitter and Receiver Dimensions .....................................................................................46
8.1.5 Bracket Dimensions ....................................................................................................... 46
8.2 Accessories ........................................................................................................................... 47
8.2.1 Cordsets .......................................................................................................................48
8.2.2 Interface Modules ..........................................................................................................50
8.2.3 Contactors ...................................................................................................................50
8.2.4 Lens Shield ...................................................................................................................51
8.2.5 EZ-LIGHT® for EZ-SCREEN
8.2.6 MSA Series Stands ........................................................................................................52
8.2.7 MSM Series Corner Mirrors .............................................................................................52
8.2.8 SSM Series Corner Mirrors ............................................................................................. 52
8.2.9 Accessory Mounting Brackets ......................................................................................... 53
8.2.10 Alignment Aids ........................................................................................................... 55
8.2.11 Replacement Parts ...................................................................................................... 55
8.2.12 Documentation ...........................................................................................................55
®
...........................................................................................51
9 Standards and Regulations ........................................................................................... 56
9.1 Applicable U.S. Standards .........................................................................................................56
9.2 OSHA Regulations ................................................................................................................... 56
9.3 International/European Standards ............................................................................................. 56
9.4 Contact Us ............................................................................................................................ 56
10 Glossary .....................................................................................................................58
EZ-SCREEN®
Type 2 Light Screen
1 About This Document
1.1 Important . . . Read This Before Proceeding!
It is the responsibility of the machine designer, controls engineer, machine builder, and/or maintenance electrician to apply and maintain this device in full compliance with all applicable regulations and standards. The device can provide the required safeguarding function only if it is properly installed, properly operated, and properly maintained. This manual attempts to provide complete installation, operation, and maintenance instruction. Reading the manual in its entirety is highly recommended. Please direct any questions regarding the application or use of the device to Banner Engineering.
For more information regarding U.S. and international institutions that provide safeguarding application and safeguarding device performance standards, see Standards and Regulations
WARNING: User Responsibility
The user is responsible to:
• Carefully read, understand, and follow the information in all documentation for this device.
•
Perform a risk assessment of the specific machine guarding application. See ISO 12100 or ANSI B11.0.
• Determine what safeguarding devices and methods are appropriate per the requirements defined in ISO 13849-1, ANSI B11.19, and other appropriate standards.
• Create and confirm each configuration and then verify that the entire safeguarding system (including input devices and output devices) is operational and working as intended.
• Periodically re-verify, as needed, that the entire safeguarding system is working as intended.
Failure to follow any of these responsibilities may potentially create a dangerous condition that may lead to serious injury or death.
on page 56.
1.1.1 Use of Warnings and Cautions
This manual contains numerous WARNING and CAUTION statements:
• Warnings refer to potentially hazardous situations which, if not avoided, may lead to serious injury or death.
• Cautions refer to potentially hazardous situations which, if not avoided, which may lead to minor or moderate injury or potential damage to equipment. Cautions are also used to alert against unsafe practices.
These statements are intended to inform the machine designer and manufacturer, the end user, and maintenance personnel, how to avoid misapplication and effectively apply the safeguarding application requirements. These individuals are responsible to read and abide by these statements.
EZ-SCREEN Type 2 Light Screen
to meet the various
1.1.2 EC Declaration of Conformity (DoC)
Banner Engineering Corp. herewith declares that the EZ-SCREEN Type 2 Light Screen are in conformity with the provisions of the Machinery Directive 2006/42/EC and all essential health and safety requirements have been met.
Representative in EU: Peter Mertens, Managing Director Banner Engineering Europe. Address: Park Lane, Culliganlaan 2F, 1831 Diegem, Belgium.
2 Introduction
2.1 Features
EZ-SCREEN® Type 2 Light Screen
• An optoelectronic safeguarding device
• Creates a screen of synchronized, modulated infrared sensing beams. Choose from 10 sizes, in 150 mm (6 in) increments: defined areas from 150 mm to 1.8 m (6 in to 71 in)
Compact package for smaller production machines
•
• Models available with Trip or Latch output operation (automatic or manual start/restart)
• 30 mm (1.18 in) resolution
• Remote Test input terminals for simulating a "blocked" condition
• Operating range up to 15 m (50 ft)
• Type 2 per IEC 61496-1/-2; Category 2 PLd per EN ISO 13849-1
• FMEA tested according to IEC 61496-1, Type 2 requirements
• 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
• Vibration-tolerant, factory burned-in emitter and receiver circuitry for toughness and dependability
2.2 System Description
NOTE: This manual refers to an emitter and its receiver, and their cabling
Banner EZ-SCREEN Type 2 emitters and receivers provide a redundant, microprocessor-controlled, opposed-mode optoelectronic "curtain of light", or "light screen". EZ-SCREEN Type 2 typically is used for point-of-operation safeguarding, and is suited to safeguard a variety of lower-risk machinery.
The EZ-SCREEN Type 2 is a two-piece (two-box) system comprising an emitter and a receiver, but no external controller. The external device monitoring (EDM) function ensures the fault detection capability required by EN ISO 13849-1 Category
2. The EZ-SCREEN Type 2 emitters have a row of synchronized modulated infrared (invisible) light-emitting diodes (LEDs) in
a compact metal housing. Receivers have a corresponding row of synchronized photodetectors. The light screen created by the emitter and receiver is 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 15 m (50 ft), which decreases if corner mirrors are used. Resolution is 30 mm (1.18 in).
Both emitter and receiver feature LEDs to provide continuous indication of the System’s operating status, alignment and error conditions.
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 solid-state Output Signal Switching Device (OSSD) safety outputs turn OFF. These safety outputs are connected to the guarded machine’s Final Switching Devices (FSDs) that control the machine primary control elements (MPCEs), which immediately stop the motion of the guarded machine.
Both 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 MPCEs (Machine Primary Control Elements), resulting in a non-hazardous condition. Each OSSD is capable of sourcing 0.5A at +24V dc.
as "a System".
Quick-Disconnect
Cables
M12 QD
Fittings
Defined
Area
Emitter
Specified Test Piece
Synchronization
Beam
Receiver
Status
Indicators
EZ-SCREEN® Type 2 Light Screen
The OSSD safety outputs are not 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.
EZ-SCREEN Type 2 is extensively FMEA (Failure Mode and Effects Analysis) tested to IEC 61496-1/-2 requirements. The design of the EZ-SCREEN Type 2 has considered all single faults such that a loss of a critical safety function will result in a stop command and a lockout condition. In the event of an accumulation of undetected faults, a remote external test (or check) is required to maintain the safety function.
Electrical connections are made through M12 (or Euro­style) quick-disconnects. An optional hookup that provides sensor interchangeability (or “swapability”) – the ability to install either sensor at either QD connection – is possible. Using a parallel connection (color-for-color), the emitter cable can be connected to the receiver cable, providing the ability to swap the emitter and receiver position, similar to a popular feature of Banner MINI-SCREEN® safety light screens. This hookup option provides advantages during installation, wiring, and troubleshooting.
All models require a supply voltage of +24V dc ±20%.
Figure 1. Banner EZ-SCREEN Type 2: emitter, receiver, and two
interconnecting cables
2.3 Appropriate Applications and Limitations
The Banner EZ-SCREEN Type 2 Light Screen is intended for lower-risk machine guarding and other safeguarding applications, as determined by a risk assessment appropriate for the application and is installed, as instructed by this manual, by a Qualified Person (as defined in the
Glossary on page 58 ).
The EZ-SCREEN Type 2 ability to perform its safeguarding function depends upon the appropriateness of the application and upon its proper mechanical and electrical installation and interfacing to the guarded machine. If all mounting,
installation, interfacing, and checkout procedures are not followed properly, the EZ-SCREEN Type 2 cannot provide the protection for which it was designed.
WARNING: Read this Section Carefully Before Installing the System
If all mounting, installation, interfacing, and checkout procedures are not followed properly, the Banner device cannot provide the protection for which it was designed. The user has the responsibility to ensure that all local, state, and national laws, rules, codes, or regulations relating to the installation and use of this control system in any particular application are satisfied. Ensure that all legal requirements have been met and that all technical installation and maintenance instructions contained in this manual are followed.
The user has the sole responsibility to ensure that this Banner device is installed and interfaced to the guarded machine by Qualified Persons, in accordance with this manual and applicable safety regulations.
. It is the user’s responsibility to verify whether the safeguarding is
CAUTION: Install System Only on Appropriate Applications
EZ-SCREEN®
Type 2 Light Screen
Banner EZ-SCREEN Type 2 signal is issued at any point in the machine's stroke or cycle, such as part-revolution clutched machines. Under no circumstances may the EZ-SCREEN Type 2 be used on full-revolution clutched machinery or in unsuitable applications as those listed. If there is any doubt about whether or not
your machinery is compatible with the EZ-SCREEN Type 2, contact Banner Engineering.
CAUTION: Use of EZ-SCREEN Type 2
EZ-SCREEN Type 2 meets the Type 2 requirements of IEC 61496 and Category 2 PLd requirements of EN ISO 13849-1. DO NOT use EZ-SCREEN Type 2 unless it is installed, tested, and inspected in accordance with this manual. DO NOT use EZ-SCREEN Type 2 where Control Reliability is required, or where Category 3, Category 4, or Type 4 AOPD (active opto-electronic protective device) have been mandated, or where a risk assessment has determined that frequent access by personnel to the hazard could result in an irreversible or serious injury (for example, OSHA reportable injury).
Typical use is for safeguarding in situations where the consequence of an accident will result in only slight (normally reversible) injuries that are typically treated by the normal healing processes and minor medical treatment (that is, first aid, as defined by OSHA 29CFR1904.7).
Failure to follow these instructions could result in serious bodily injury or death.
is for use only on machinery that can be stopped immediately after a stop
2.3.1 Examples: Appropriate Applications
EZ-SCREEN Type 2 are typically used for, but is not limited to, the following applications (dependent on machine risk assessment):
• Small assembly equipment
•
Automated production equipment
• "Table-top" robotic work cells
• Component insertion/"pick-and-place" machines
• Small packaging machines
• Equipment and process protection (non-personnel safety)
• Applications that could result in only slight (normally reversible) injuries (such as bump, bruise, knock-down, trapping but not crushing, minor cuts and abrasions, etc.)
2.3.2 Examples: Inappropriate Applications
Do not use EZ-SCREEN Type 2 in the following applications:
• As a primary safeguard in frequently accessed hazardous situations that could result in serious injuries (normally irreversible, including death)
• In any case where Control Reliability, Category 3, Category 4, or Type 4 AOPD (active opto-electronic protective device) have been mandated. See EN ISO 13849-1, IEC 61496-1, or other appropriate standard
• With any machine that cannot be stopped immediately after a stop signal is issued, such as single-stroke (or full­revolution) clutched machinery
• With any machine with inadequate or inconsistent machine response time and stopping performance
• With any machine that ejects materials or component parts through the defined area
• In any environment that is likely to adversely affect photoelectric sensing efficiency. For example, corrosive chemicals or fluids or unusually severe levels of smoke or dust, if not controlled, may degrade sensing efficiency
• As a tripping device to initiate or reinitiate machine motion (PSDI applications), unless the machine and its control system fully comply with the relevant standard or regulation (see ISO 12100, IEC 60204-1, IEC 61496-1, or other appropriate standard)
If an EZ-SCREEN Type 2 is installed for use as a perimeter guard (where a pass-through hazard may exist), the dangerous machine motion can be initiated by normal means only after the safeguarded area is clear of individuals and the EZ­SCREEN Type 2 has been manually reset.
2.4 Control Reliability and Safety Categories
To summarize the expected safety circuit performance in high-risk situations, requirements of Control Reliability (OSHA 29CFR1910.217, ANSI B11.19, and ANSI/RIA R15.06) and Category 3 and Category 4 (EN ISO 13849-1) demand that a reasonably foreseeable, single failure does not lead to the loss of the safety function, and does not prevent a normal or immediate stop from occurring. The failure or the fault must be detected at or before the next demand of safety (e.g., at the beginning or end of a cycle, or when a safeguard is actuated). The safety-related part of the control system then must issue an immediate stop command, or prevent the next machine cycle or hazardous situation until the failure or fault is corrected.
EZ-SCREEN® Type 2 Light Screen
The effect of ANSI/RIA R15.06, ANSI B11.19, and EN ISO 13849-1 is to set a baseline for situations in which a minimum level of performance has been mandated or in cases where a risk assessment has determined a need for Control Reliability, Category 3 or Category 4 level of performance.
In lower-risk safety applications, safeguards and safety circuits do not require the level of performance and fault tolerance described by Control Reliability, Category 3 or Category 4. Applications involving situations that could result in a slight or normally reversible injury (e.g., only requiring first aid, as defined by OSHA 29CFR1904) can be solved by EN ISO 13849-1 Category 2.
EN ISO 13849-1 Category 2 does not require the same level of performance and fault tolerance as required by Control Reliability, Category 3 or Category 4. Safety-related parts of control systems designed to Category 2 “shall be designed so that their function(s) are checked at suitable intervals by the machine control system.” This allows a single fault to lead to the loss of the safety function between the check [test] of the system, but the loss of safety function is detected by the check. By comparison, in a system designed to EN ISO 13849-1 Category 4, a single fault or an accumulation of faults will not lead to a loss of the safety function.
While EN ISO 13849-1 generally applies to the machine level, IEC61496-1/-2 specifies requirements for the design, construction and testing for two levels or “types” of active opto-electronic protective devices (AOPDs) or light curtains (light screens). “Type 2” and “Type 4” describe differing requirements to ensure that appropriate safety-related performance is achieved. The appropriate type is dependent on the overall degree of risk reduction, as determined by the machine’s Risk Assessment (see ISO 14121, ANSI B11.19, ANSI/RIA R15.06).
A Type 2 AOPD relies on periodic testing to detect a failure to danger. Between tests, a single fault can result in the loss of the safety function. While this level of performance and fault tolerance is generally not allowed in Category 4 situations, it is acceptable in the lower-risk situations described by Category 2.
While the EZ-SCREEN Type 2 conducts continual internal self-tests and all single faults have been considered, the installation should provide an additional periodic test/check of the EZ-SCREEN Type 2 and its interface to ensure the integrity of the safety function (see Manual Reset/Remote Test Input and EDM on page 31). A component failure detected by periodic test/check must cause a “stop” signal to be sent to the guarded machine and put the System into a Lockout condition.
Recovery from this type of Lockout condition requires:
•
Replacement of the failed component (to restore the safety function)
• The appropriate reset procedure.
2.5 Operating Features
The Banner EZ-SCREEN Type 2 Light Screen models described by this manual feature standard functions:
• Trip or Latch Output (depending on model)
• External Device Monitoring (EDM) via the Test/Retest input
The System Response Time (Tr) can be determined by the model number on the emitter and receiver.
2.5.1 Trip/Latch Output
Whether a receiver features Trip or Latch Output determines whether the System will enter RUN mode automatically after power-up, or if it will require a manual reset first. If the System has Trip Output, other measures must be taken to prevent a pass-through hazard.
For Latch Output models, the EZ-SCREEN Type 2 requires a manual reset for the OSSD outputs to turn ON, after power is applied and all beams are clear.
• For Trip Output models, 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. Trip Output models will also turn on after all beams are cleared following a blocked beam.
• For Latch Output models, the EZ-SCREEN Type 2 requires a manual reset for the OSSD outputs to turn ON, whenever power is applied and all beams are clear.
WARNING: Use of Trip/Latch Output
Application of power to the Banner device, 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 (in a conscious act) to start the machine – in addition to the Banner device going into Run mode. Failure to follow these instructions may result in serious bodily injury or death.
D
C
A
B
EZ-SCREEN® Type 2 Light Screen
2.5.2 Wiring Options for Emitter/Receiver Swapability
Each EZ-SCREEN Type 2 sensor can be connected to its own power supply or, color-for-color to the other sensor’s cable. The color-for-color hookup allows the emitter and receiver positions to be interchanged without rewiring (functionality known as sensor " swapability"). Model CSB.. splitter cordsets and DEE2R.. double-ended cables facilitate interconnection between an
EZ-SCREEN Type 2 receiver and emitter, providing a single "homerun" cable for optional swapable hookup.
Individual Cordsets Splitter Cordsets
A
Bn
Or/Bk
Or
Wh
Bk
Bu
Gn/Y
Vi
Key Description
A Emitter B Receiver C QDE-8..D Cordsets
B
C
+24V dc
n.c.
n.c.
OSSD2
OSSD1
e
0V dc
Ground
Reset/Test & EDM
Key Description
A Emitter B Receiver C DEE2R.. Cordsets D CSB.. Cordsets
2.5.3 Manual Reset/Remote Test Input and EDM
A single input provides the means to reset the system from a latch or lockout condition, to externally test the light screen and its interface, and to monitor external devices (EDM) for proper operation. If the System is in Run condition with outputs ON, operating the switch results in a test. If the System is Latched or Locked Out, operating the switch results in a reset.
External Device Monitoring (EDM)
This feature allows the closed and a normally open contact from each monitored device are wired in series-parallel to detect if one of the devices fails.
2.5.4 Status Indicators
Status indicators on both the emitter and receiver are clearly visible on each sensor’s front panel.
EZ-SCREEN Type 2 system to monitor the status of external devices such as MPCEs. A normally
Power/Fault LED (Green)
Alignment LEDs
(Yellow)
Status Blocked LED (Red)
Status Clear LED (Green)
EZ-SCREEN® Type 2 Light Screen
Figure 2. EZ-SCREEN Type 2 emitter and receiver status indicators
EZ-SCREEN® Type 2 Light Screen
3 Mechanical Installation
EZ-SCREEN Type 2 system performance as a safety guarding device depends on:
The
•
The suitability of the application
• The proper mechanical and electrical installation and interfacing to the guarded machine
WARNING: Read this Section Carefully Before Installing the System
If all mounting, installation, interfacing, and checkout procedures are not followed properly, the Banner device cannot provide the protection for which it was designed. The user has the responsibility to ensure that all local, state, and national laws, rules, codes, or regulations relating to the installation and use of this control system in any particular application are satisfied. Ensure that all legal requirements have been met and that all technical installation and maintenance instructions contained in this manual are followed.
The user has the sole responsibility to ensure that this Banner device is installed and interfaced to the guarded machine by Qualified Persons, in accordance with this manual and applicable safety regulations.
3.1 Mechanical Installation Considerations
The two primary factors that influence the layout of the EZ-SCREEN Type 2 system mechanical installation are the Safety Distance (Minimum Distance) (see Calculating the Safety Distance (Minimum Distance) on page 11) and the supplemental safeguarding/eliminating pass-through hazards (see Reducing or Eliminating Pass-Through Hazards on page
14). Other considerations include:
• Emitter and Receiver Orientation on page 17
• Adjacent Reflective Surfaces on page 16
• Use of Corner Mirrors on page 16
• Installation of Multiple Systems on page 18
WARNING: Position Components Carefully The emitter and receiver must be positioned such that the hazard cannot be accessed by
reaching over, under, around, or through the sensing field. Additional and supplemental guarding
may be required.
3.1.1 Calculating the Safety Distance (Minimum Distance)
Safety Distance (Ds), also called Minimum Distance (S), is the minimum distance required between the defined area and the closest reachable hazard point. The distance is calculated so that when an object or a person is detected (by blocking a sensing beam), the EZ-SCREEN Type 2 sends a stop signal to the machine, causing it to stop by the time the object or person can reach any machine hazard point.
The distance is calculated differently for U.S. and European installations. Both methods take into account several factors, including a calculated human speed, the total system stopping time (which itself has several components), and the depth penetration factor. After the distance has been determined, record the calculated distance on the Daily Checkout Card.
WARNING: Safety Distance (Minimum Distance)
The Banner emitters and receivers must be mounted at a distance from the nearest hazard such that an individual cannot reach the hazard before cessation of the hazardous motion or situation. This distance can be calculated using the formulas in this section, as described by ANSI B11.19 and ISO 13855, and must be greater than 100 mm (4 in) regardless of calculated value. Failure to establish and
maintain the safety distance (minimum distance) may result in serious bodily injury or death.
Reduced Resolutions increases Dpf (or C). Increase the depth penetration factor to calculate proper minimum distance whenever Reduced Resolution is used. Always turn Reduced
Resolution Off when the larger minimum object detection size is not required.
EZ-SCREEN® Type 2 Light Screen
Figure 3. Safety distance (minimum distance) and hard (fixed) guarding
EZ-SCREEN Type 2 Models With Response Times
Models (see note below) Defined Area Height Number of Beams Response Time (Tr) LS2..30-150Q8 150 mm (5.9 in) 8 11 ms LS2..30-300Q8 300 mm (11.8 in) 16 13 ms LS2..30-450Q8 450 mm (17.7 in) 24 14 ms LS2..30-600Q8 600 mm (23.6 in) 32 16 ms LS2..30-750Q8 750 mm (29.5 in) 40 17 ms LS2..30-900Q8 900 mm (35.4 in) 48 19 ms LS2..30-1050Q8 1050 mm (41.3 in) 56 21 ms LS2..30-1200Q8 1200 mm (47.2 in) 64 22 ms LS2..30-1350Q8 1350 mm (53.1 in) 72 24 ms LS2..30-1500Q8 1500 mm (59 in) 80 25 ms LS2..30-1650Q8 1650 mm (65 in) 88 27 ms LS2..30-1800Q8 1800 mm (70.9 in) 96 29 ms
NOTE: The .. in the model numbers is one of the following:
= Emitter
• E
• TR = Trip-Output Receiver
• LR = Latch-Output Receiver
• TP = Trip-Output Emitter/Receiver Pair
• LP = Latch-Output Emitter/Receiver Pair
Pair model numbers end in 88 (for example, LS2TP30-150Q88) to indicate that both the transmitter and receiver have an 8-pin connector.
Formula and Examples
U.S. Applications European Applications
The Safety (Separation) Distance formula for U.S. applications:
Ds = K × (Ts + Tr) + Dpf
The Minimum Distance formula for European applications:
S = (K × T) + C
U.S. Applications European Applications
Ds
the Safety Distance, in inches
K
1600 mm per second (or 63 in per second), the OSHA 29CFR1910.217, and ANSI B11.19 recommended hand-speed constant (see Note 1 below)
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 (for example, IM-T-.. Interface Modules) and measured at maximum machine velocity (see Note 3 below)
Tr
the maximum response time, in seconds, of the EZ-SCREEN Type 2 emitter/receiver pair (depending on model)
Dpf
the added distance due to the depth penetration factor as prescribed in OSHA 29CFR1910.217, and ANSI B11.19 for U.S. applications.
S
the Minimum Distance, in mm, from danger zone to light screen center line; minimum allowable distance is 100 mm ( 175 mm for non-industrial applications), regardless of calculated value
K
hand-speed constant (see Note 2 below); 2000 mm/s (for Minimum Distances < 500 mm) 1600 mm/s (for Minimum Distances > 500 mm)
T
the overall machine stopping response time (in seconds), from the physical initiation of the safety device and the machine coming to a stop (or the hazard removed). This can be broken down into two parts: Ts and Tr where T
C
the additional distance, in mm, based on intrusion of a hand or object towards the danger zone prior to actuation of a safety device. Calculate using the formula:
C = 8 × (d - 14)
EZ-SCREEN® Type 2 Light Screen
= Ts + Tr
where d is the resolution of the light curtain (for d < 40 mm). EZ-SCREEN Type 2, d = 30 mm and C = 128 mm (5 in).
Notes:
1. The OSHA-recommended hand speed constant K
has been determined by various studies and, although these studies indicate speeds of 1600 mm/sec. (63 in/sec.) to more than 2500 mm/sec. (100 in/sec.), 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. The recommended hand speed constant K, derived from data on approach speeds of the body or parts of the body as stated in ISO 13855.
3. 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.
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 or S) 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.
If required, each of the two Machine Primary Control Elements (MPCE1 and MPCE2) must be capable of immediately stopping the dangerous machine motion, regardless 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 safety distance) must take into account the slower of the two channels.
For
EZ-SCREEN®
Examples
Type 2 Light Screen
Example: U.S. Applications, Model K = 63 in. per second (the hand speed constant set by OSHA)
Ts = 0.32 (0.250 second is specified by the machine
Tr = 0.016 seconds (the specified response time of an
Dpf =
Substitute the numbers into the formula as follows:
Ds = K x ( Ts + Tr ) + Dpf
Mount the EZ-SCREEN Type 2 emitter and receiver so that no part of the defined area will be closer than 24.2 in. point on the guarded machine.
manufacturer; plus 20% safety factor; plus 20 ms for interface module IM-T-9A response time)
LS2..30-600 EZ-SCREEN Type 2) 3 in
to the closest reachable hazard
Example: European Applications, Model K = 1600 mm per second
T = 0.336 (0.250 second specified by machine manufacturer;
C = 8 x (30 - 14) = 128 mm (14 mm resolution)
Substitute the numbers into the formula as follows:
S = (K x T ) + C
S = (1600 x 0.336) + 128 = 665.6 mm
Mount the EZ-SCREEN Type 2 emitter and receiver so that no part of the defined area will be closer than 665.6 reachable hazard point on the guarded machine.
plus 20% safety factor; plus 20 ms interface module response time), plus 0.016 LS2..30-600 response time)
seconds (the specified
mm to the closest
3.1.2 Reducing or Eliminating Pass-Through Hazards
A pass-through hazard is associated with applications where personnel may pass through a safeguard (which issues a stop command to remove the hazard), and then continues into the guarded area, such as in perimeter guarding. Subsequently, their presence is no longer detected, and the related danger becomes the unexpected start or restart of the machine while personnel are within the guarded area.
In the use of light screens, a pass-through hazard typically results from large safety distances calculated from long stopping times, large minimum object sensitivities, reach-over, reach-through, or other installation considerations. A pass­through hazard can be generated with as little as 75 mm (3 in) between the defined area and the machine frame or hard (fixed) guarding.
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 safety requirements in ANSI B11.19 or other appropriate standards.
An alternative 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 the Banner device for Perimeter Guarding
If a Banner device is installed in an application that results in a pass-through hazard (for example, perimeter guarding), either the Banner device 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.
Lockout/Tagout procedures per ANSI Z244.1 may be required, or additional safeguarding, as described by ANSI B11.19 safety requirements or other appropriate standards, must be used if a passthrough hazard cannot be eliminated or reduced to an acceptable level of risk. Failure to observe this
warning may result in serious bodily injury or death.
3.1.3 Supplemental Safeguarding
As described in Calculating the Safety Distance (Minimum
Distance) on page
properly positioned such that an individual cannot reach through the defined area and access the hazard point before the machine has stopped.
Additionally, the hazard cannot 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 B11.19 safety requirements or other appropriate standards, must be installed. Access will then be possible only through the defined area of the EZ-SCREEN Type 2 System or through other safeguarding that prevents access to the hazard (see
Figure 4 on page 15).
The mechanical barriers used for this purpose are typically called "hard (fixed) guarding"; there must be no gaps between the hard (fixed) guarding and the defined area. Any openings in the hard (fixed) guarding must comply with the safe opening requirements of ANSI B11.19 or other appropriate standard.
11, the
EZ-SCREEN Type 2 must be
EZ-SCREEN® Type 2 Light Screen
Figure 4. An example of supplemental safeguarding
15
Figure 4 on page
conjunction with the hard (fixed) guarding, is the primary safeguard. Supplemental safeguarding (such as a horizontal­mounted safety light screen as an area guard) is required in areas that cannot be viewed from the reset switch (for example, behind the robot and the conveyor). Additional supplemental safeguarding may be required to prevent clearance or trapping hazards (for example, a safety mat as an area guard between the robot, the turntable, and the conveyor).
shows an example of supplemental safeguarding inside a robotic work cell. The EZ-SCREEN Type 2, in
WARNING: The Hazard Must Be Accessible Only through the Defined Area
The installation of the EZ-SCREEN Type 2 must prevent any individual from reaching around, under, over or through the defined area and into the hazard without being detected. Mechanical barriers (for example, hard (fixed) guarding) or supplemental safeguarding may be required to comply with this requirement, and is described by ANSI B11.19 safety requirements or other appropriate standards.
3.1.4 Other Considerations
Reset Switch Location
The reset switch must be mounted at a location that complies with the warning and guidelines below.
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 (for example, through the use of rings or guards).
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. When considering where to locate the reset switch, follow the guidelines below.
WARNING: Reset Switch Location
If any
When considering where to locate the reset switch, you must follow the guidelines outlined in this section.
If any areas within the guarded area are not visible from the reset switch, additional safeguarding must be provided, as described by the ANSI B11.19 series or other appropriate standards.
Failure to follow these instructions could result in serious injury or death.
All reset switches must be:
• Outside the guarded area
d
d
d
Operating Range (R)
Emitter Receiver
Do not position reflective surfaces
within the shaded area
top view
side view
EZ-SCREEN® Type 2 Light Screen
• Located to allow the switch operator a full, unobstructed, view of the entire guarded area while the reset is performed
• Out of reach from within the guarded area
•
Protected against unauthorized or inadvertent operation (such as through the use of rings or guards).
Important: 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 cannot be observed from the reset switch location, additional supplemental safeguarding must be used: at a minimum, visual and audible warnings of machine start-up.
Adjacent Reflective Surfaces
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 Type 2. Perform the trip test, as described in this manual, 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 injury or death.
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.
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 and the periodic checkout procedures. 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
•
Otherwise, if possible, paint, mask, or roughen the shiny surface to reduce its reflectivity
• Where these are not possible (as with a shiny workpiece or machine frame), determine the worst-case resolution resulting from the optical short circuit and use the corresponding depth penetration factor (Dpf or C) in the Safety Distance (Minimum Distance) formula; or mount the sensors in such a way that the receiver's field of view and/or the emitter's spread of light are restricted from the reflective surface
• Repeat the trip test (see Trip Test on page 28) 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
Use of Corner Mirrors
Figure 5. Adjacent Reflective Surfaces
EZ-SCREEN Type 2 may be used with one or more corner mirrors. Mirrors are not allowed for applications that would allow undetected personnel access into the safeguarded area. The use of glass-surface corner mirrors reduces the maximum specified emitter/receiver separation by approximately 8 percent per mirror, as follows:
A
Emitter
Receiver
Mirror
45˚ < A < 120˚
Emitter
Receiver
Mirror
EZ-SCREEN® Type 2 Light Screen
SSM and MSM Series Glass-Surface Mirrors
Corner Mirrors Max. Emitter / Receiver Range
1 13.8 m (45 ft) 2 12.7 m (42 ft) 3 11.7 m (38 ft) 4 10.8 m (35 ft)
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 6 on page light screen may deflect beam(s) to the receiver, preventing the object from being detected, also know as false proxing. Angles greater than 120° result in difficult alignment and possible optical short circuits.
WARNING: Avoid Retroreflective Installation
Do not install emitters and receivers in "retroreflective" mode, with less than a 45° angle of incidence, as shown. Sensing may be unreliable in this configuration and result in a serious bodily injury
or death.
17
). If placed at a sharper angle, an object in the
Figure 6. Using EZ-SCREEN Type 2 sensors in a retroreflective mode
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 in the opposite direction of 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.
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 to each other 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 (fixed) guarding or other supplemental guarding.
WARNING: Proper Orientation of System Emitters and Receivers
EZ-SCREEN Type 2 emitters and receivers must be installed with their corresponding cabled ends pointing in the same direction (for example, both cabled ends facing up). Failure to orient them
properly will impair the performance of the EZ-SCREEN Type 2 System and will result in incomplete guarding, and could result in serious bodily injury or death.
Receiver
Emitter
Receiver
Emitter
Receiver
Emitter
Receiver
Emitter
Receiver
Emitter
EZ-SCREEN® Type 2 Light Screen
Both cable ends down Both cable ends up Orientation parallel to floor with both
cable ends pointing in the same
direction
Figure 7. Examples of Correct Emitter/Receiver Orientation
Cable ends point in opposite directions
Problem: Voids in defined area
Figure 8. Examples of Incorrect Emitter/Receiver Orientation
Emitter and receiver not parallel to each other
Problem:
Reduced excess gain
Installation of Multiple Systems
Whenever two or more EZ-SCREEN Type 2 emitter and receiver pairs are adjacent to one another, optical crosstalk may take place between the systems. To minimize optical crosstalk, alternate the positions of the emitters and receivers (see
Figure 9 on page
When three or more systems are installed in the same plane (as shown in Figure 9 on page 19), 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.
19).
Receiver
Emitter
Scan Code 1
Receiver
Emitter
Scan Code 1
Receiver
Emitter
Scan Code 2
Receiver
Emitter
Scan Code 1
Emitter
Receiver
Horizontal Receiver
Horizontal
Emitter
Scan Code 1
Scan Code 2
Receiver 1
Emitter 1
Scan Code 1
Receiver 2
Emitter 2
Scan Code 2
Receiver 3
Emitter 3
Scan Code 2
Opaque Shield
EZ-SCREEN® Type 2 Light Screen
a. Two systems in a horizontal plane
c. Two systems at right angles
Figure 9. Installation of Multiple Systems
emitter positions)
d. Multiple systems
WARNING: Multiple Pairs of Sensors
Do not connect multiple pairs of sensors to one Interface Module (for example, IM-T-9A/-11A) or otherwise parallel OSSD outputs. Connection of multiple OSSD safety outputs to a single device
may result in serious bodily injury or death, and is prohibited.
b. Two or three systems stacked (or alternate receiver/
WARNING: Proper Orientation of System Emitters and Receivers
EZ-SCREEN Type 2 emitters and receivers must be installed with their corresponding cabled ends pointing in the same direction (for example, both cabled ends facing up). Failure to orient them
properly will impair the performance of the EZ-SCREEN Type 2 System and will result in
incomplete guarding, and could result in serious bodily injury or death.
WARNING: Synchronization
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; a receiver may synchronize to the signal from the wrong emitter, reducing the safety function of the light screen.
EZ-SCREEN® Type 2 Light Screen
3.2 Mounting System Components
3.2.1 Overview of Emitter/Receiver Mounting Hardware
Mounting Hardware
The EZ-SCREEN standard end-cap mounting bracket hardware is supplied with each emitter and receiver. Brackets are designed to mount directly to MSA Series stands using the hardware with the supplied stands.
Using Center Mounting Brackets
Center mounting brackets are supplied with longer sensors and must be used whenever the sensors are subject to shock or vibration. The sensors are designed to be mounted with up to 450 mm (18 in) distance between brackets:
•
Sensors 600 to 900 mm (24 in to 36 in) long are supplied with one center bracket, which should be centered on the sensor.
Sensors 1050 to 1350 mm (42 in to 54 in) long are
• supplied with two center brackets, which should be positioned 1/3 of the sensor's length from each sensor end.
• Sensors 1500 to 1800 mm (59 in to 71 in) long are supplied with three center brackets
To install each bracket:
1. Spread the clamp and snap over the back of the sensor so that the clamp is securely fastened to the sensor without blocking any beams.
2. Compress the foam spacer and slide the clamp along the length of the sensor housing to align the clamp with the center mounting bracket as shown in
Figure 11 on page 20. Three separate mounting
holes are provided on the clamp to allow for all possible mounting configurations.
3. Connect the clamp to the center bracket using the M3 screw supplied.
4. Loosen all the mounting screws to the sensor, align the sensors and then tighten the end screws. Finally, tighten the M3 screw joining the clamp to the center mounting bracket.
Figure 10. Emitter and Receiver End-Cap Mounting Brackets
Figure 11. Emitter and Receiver Center Mounting Brackets
Level Surface
X X
Emitter Receiver
level
level
Y Y
Z
Z
Level Surface
A B
level level
XX
EZ-SCREEN® Type 2 Light Screen
3.2.2 Mounting and Initial Alignment of Emitter/Receiver Pairs
Emitter/receiver pairs may be spaced from 0.2 to 15 m (8 in to 50 ft) apart. The maximum distance between an emitter and its receiver is reduced if corner mirrors are used. The supplied brackets (when mounted to the sensor end caps) allow ±30° rotation.
To mount each emitter/receiver pair:
1. From a common point of reference (ensuring the calculated safety distance), 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 Emitter
and Receiver Orientation on page 17
).
2. Mount the emitter and receiver mounting brackets using the supplied M6 bolts and Keps nuts, or user-supplied hardware.
3. Mount the emitter and receiver in their brackets; position their windows directly facing each other. Measure from a reference plane (for example, a level building floor) to the same point(s) on the emitter and
4. receiver to verify their mechanical alignment.
5. Use a carpenter's level, a plumb bob, or the optional LAT-1 Laser Alignment Tool or check the diagonal distances between the sensors, to achieve mechanical alignment.
Verifying Initial Emitter/Receiver Alignment
As you mount the sensors, make sure that
• The emitter and receiver are directly opposite each other.
• Nothing is interrupting the defined area (marked on the sensors).
• The defined area 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).
Angled or Horizontal Installations Vertical Installations
Verify that the
◦ 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 (that is, the lens) is level/plumb. ◦ Defined area is square. Check diagonal
measurements if possible; see Vertical Installations, at right.
Verify that the
◦ Distance X at the emitter and receiver are
equal.
◦ Both sensors are level/plumb (check both the
Distance Z at the emitter and receiver are equal from side and face).
◦ Defined area is square. Check diagonal
measurements if possible (Diagonal A = Diagonal B).
EZ-SCREEN® Type 2 Light Screen
NOTE: Make sure that the emitter and receiver are not tilted front-to-back or side-to-side as shown.
EZ-SCREEN® Type 2 Light Screen
4 Electrical Installation and Testing
WARNING: Read this Section Carefully Before Installing the System
If all mounting, installation, interfacing, and checkout procedures are not followed properly, the Banner device cannot provide the protection for which it was designed. The user has the responsibility to ensure that all local, state, and national laws, rules, codes, or regulations relating to the installation and use of this control system in any particular application are satisfied. Ensure that all legal requirements have been met and that all technical installation and maintenance instructions contained in this manual are followed.
The user has the sole responsibility to ensure that this Banner device is installed and interfaced to the guarded machine by Qualified Persons, in accordance with this manual and applicable safety regulations.
The following are the main steps to electrically install the EZ-SCREEN Type 2 components and interface with the guarded machine:
Apply power to each emitter/receiver pair (see Initial Electrical Connections
1.
2. Perform and Initial Checkout Procedure (see Initial Checkout Procedure on page 25)
3. Make all electrical interface connections to the guarded machine (see Electrical Connections to the Guarded
Machine on page 29)
4. Perform a commissioning checkout procedure (see Commissioning Checkout on page 33)
4.1 Routing Cordsets
on page 23)
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 Cordsets on page
The EZ-SCREEN Type 2 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 Type 2 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).
48 for selection of Banner-supplied cordsets.
Table 1: Maximum Machine Interface cable length versus total current draw (including both OSSD loads)
Cable Size
0.823 mm2 (18 AWG) 375 ft 250 ft 188 ft 148 ft
0.518 mm2 (20 AWG) 240 ft 160 ft 120 ft 95 ft
0.326 mm2 (22 AWG)* 150 ft 100 ft 75 ft 59 ft
NOTE: Cable length includes power (+24 V dc) and return (0 V dc) wires at +25 °C, and is intended to ensure that adequate power is available to the EZ-SCREEN Type 2 System when the supply is operating at +24 V dc - 10%.
0.5 A 0.75 A 1.0 A 1.25 A
Current Draw
4.2 Initial Electrical Connections
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 Type 2
are described in this manual. Connection of other wiring or equipment to the EZ-SCREEN Type 2 System could result in serious bodily injury or death.
System than
EZ-SCREEN®
Type 2 Light Screen
Lockout/tagout procedures may be required (refer to OSHA1910.147, ANSI Z244-1, ISO 14118, 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 the earth ground (green/yellow wire). Do not operate the EZ-SCREEN Type 2
without an earth ground connection.
Make the electrical connections in the order described in this section. Do not remove end-caps; no internal connections are to be made. All connections are made through the M12 Euro-style quick-disconnects.
Emitter Cordset Receiver Cordset
EZ-SCREEN Type 2 emitters have an 8-pin cordset, but only three conductors are required:
• Brown = +24 V dc
•
Blue = 0 V dc
• Green/Yellow = GND
Do not connect any wires to the machine control circuits (that is, OSSD outputs) at this time.
For the initial checkout, only the following conductors should be connected:
• Brown = +24 V dc
• Blue = 0 V dc
• Green/Yellow = GND
Additionally, connect the external reset switch, if used, or test signal contact to the Reset/Test wire (violet) and to 24 V dc.
EZ-SCREEN Type 2 receiver
NOTE: The reset switch must be a normally closed switch that is held open for approximately 1/4 second, then closed to accomplish the reset. The switch must be capable of switching 10 to 30 V dc at 30 mA.
The other wires are for an optional hookup that allows for parallel connection (color-for-color) to the receiver cable. This optional hookup provides for sensor interchangeability (or swapability) that facilitates installing either sensor at either QD connection. Besides providing similar cabling, this wiring scheme is advantageous during installation, wiring, and troubleshooting.
D
C
A
B
EZ-SCREEN® Type 2 Light Screen
Individual Cordsets Splitter Cordsets
A
Key Description
A Emitter B Receiver C QDE-8..D Cordsets
C
Bn
Or/Bk
Or
Wh
Bk
Bu
Gn/Y
Vi
B
+24V dc
n.c.
n.c.
OSSD2
OSSD1
e
0V dc
Ground
Reset/Test & EDM
Key Description
A Emitter B Receiver C DEE2R.. Cordsets D CSB.. Cordsets
4.3 Initial Checkout Procedure
The initial checkout procedure must be performed by a Qualified Person. It must be performed only after configuring the System and after connecting the emitter and receiver.
The procedure is performed on two occasions:
• To ensure proper installation when the System is first installed
•
To ensure proper System function whenever any maintenance or modification is performed on the System or on the machinery that is guarded by the System.
4.3.1 Configuring the System for Initial Checkout
For the initial checkout, the EZ-SCREEN Type 2 System must be checked without power 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, ISO 14118, or the appropriate
successfully completed. Verify that:
• Power has been removed from (or is not available to) the guarded machine and its controls or actuators
• The machine control circuit or the Interface Module is not connected to the OSSD outputs at this time (permanent connections will be made later)
standard for controlling hazardous energy). These connections will be made after the initial checkout procedure has been
Power/Fault LED (Green)
Alignment LEDs
(Yellow)
Status Blocked LED (Red)
Status Clear LED (Green)
EZ-SCREEN®
Type 2 Light Screen
4.3.2 Initial Power-Up
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 Adjacent Reflective Surfaces on page
2. Eliminate the reflective surfaces as much possible by relocating, painting, masking, or roughening them. Remaining problem reflections will become apparent during the trip test.
3. Verify that power is removed from the EZ-SCREEN Type 2 System and from the guarded machine and that the OSSD safety outputs are not connected.
4. Remove all obstructions from the light screen.
5. Leaving power to the guarded machine Off, make power and earth ground connections on both the emitter and receiver cables (see Generic Emitter Wiring Diagram on page 34).
6. Power up the EZ-SCREEN Type 2 System only.
7. Verify that the input power is present to both the emitter and the receiver. At least one indicator on both the emitter and the receiver should be On and the start-up sequence should cycle.
8. Watch both the emitter and the receiver LED indicators to determine the light screen alignment status.
16).
Figure 12. Emitter Status Indicators
• Lockout Condition—on the emitter, the green Power indicator is flashing or on the receiver, the red Status Blocked indicator is flashing. See Troubleshooting and Lockout Conditions on page diagnostic information.
• Normal Operating Mode—to the emitter, the green Power indicator is ON.
• Test Mode, input fault: On the receiver, the red Status Blocked indicator is On and the green Status Clear indicator is On. Test input open at power-up.
• Receiver Latch Condition, all optical beams clear—on the receiver, the red Status Blocked indicator is On and both yellow Alignment indicators are flashing. For Latch Output receivers, the outputs are On only when all beams are clear and after a manual reset. If a reset routine can cause a Clear (Run) condition, optimize the alignment as described in Optical Alignment on page 26. If a Clear (Run) condition cannot be achieved, see “Blocked condition” below.
• Clear (Run) Condition—on the receiver, the green Status Clear indicator is On Green, and both yellow Alignment indicators are On. To optimize alignment and maximize excess gain, slightly loosen the four sensor mounting screws and rotate one sensor left and right, noting the positions where the red Status Blocked indicator turns On; repeat with the other sensor (see Optical Alignment on page 26). 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 Trip
Test on page 28 once optimum optical alignment is verified.
• A Blocked Condition—on the receiver, the red Status Blocked indicator is On, and both yellow Alignment indicators are On or Off. To remedy, perform the Optical Alignment on page 26 procedure.
4.3.3 Optical Alignment
CAUTION: Ensure that no individuals are exposed to any hazard if the OSSD outputs turn ON
when the emitter and receiver become aligned.
Figure 13. Receiver Status Indicators
40
for
1. Verify the sensor mounting.
Straight Edge
Straight Edge
All OFF
ON Red
ON Red
ON Yellow
ON Green
ON Yellow
ON Yellow
FLASHING
2. Verify the optimal alignment, adjusting sensor rotation with power ON: a.
Verify that the emitter and the receiver are pointed squarely at each other. Use a straight edge (for example, a level) to determine the direction the sensor is facing. The sensor face must be perpendicular to the optical axis.
NOTE: At power-up, all indicators are tested (flash).
b. If the synchronization beam is not aligned, the Status Blocked indicator is Red and both Alignment
indicators will be OFF.
EZ-SCREEN® Type 2 Light Screen
If the Green Status and Yellow Alignment indicators are On, go to step "d". If not, rotate each sensor (one
c.
at a time) left and right until the Status Clear indicator comes ON Green. As the sensor rotates out of alignment, the Status Blocked indicator will turn solid Red.
d. To optimize alignment, note the position where the Status Blocked indicator comes On Red 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-LP Laser Alignment Tool can be used to assist or confirm alignment by providing a visible red dot along the sensor’s optical axis.
NOTE: If at any time the Red Status Blocked entered a Lockout condition. See Troubleshooting and Lockout Conditions on page 40 for further information.
indicator begins to flash steadily, the System has
Red
Component 2 (Mirror)
Component 3 (Mirror)
Component 4 (Receiver)
Component 1 (Emitter)
EZ-SCREEN® Type 2 Light Screen
4.3.4 Optical Alignment Procedure with Mirrors
EZ-SCREEN Type 2 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 Use of Corner Mirrors on page 16
During any adjustments, allow only one individual to adjust any one item at any one time.
In addition to the standard optical alignment procedure, verify:
1. The emitter, receiver, and all mirrors are level and plumb.
2. 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.
3. 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.
NOTE: A LAT-1-LSLaser Alignment Tool is very helpful by providing a visible red dot along the optical axis. See Figure 14 on page
28 and Banner Safety Applications Note SA104 (p/n 57477) for further
information.
.
Figure 14. Optical alignment using the LAT-1-LS
Figure 15. Corner Mirror Alignment
4.3.5 Trip Test
After optimizing the optical alignment, perform the trip test to verify the detection capability of the EZ-SCREEN Type 2 System. This test will also verify correct sensor orientation and identify optical short circuits. Once the installation has passed the trip test, the safety outputs may be connected and the commissioning checkout may be performed (initial installations only).
1.
Use the 30 mm (1.18 in) diameter specified test piece supplied with the receiver .
2. Verify that the System is in Run mode, the Status Clear indicator is ON steady Green (or flashing if reduced resolution is enabled), all Zone indicators are Green, and the Yellow Status indicator is ON. A manual reset may be required in Latch mode.
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.
Receiver
Emitter
Test Piece
Receiver
Emitter
Test Piece
Mirror
EZ-SCREEN® Type 2 Light Screen
Figure 16. Trip Test
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 Blocked indicator must turn ON Red and remain ON for as long as the
• test piece remains in the defined area (and the Status Clear indicator OFF during the same time). If not, the installation has failed the trip test. When the test piece is removed from the defined area, the Status Clear indicator must turn ON Green and the Status Blocked indicator must go OFF.
• Latch Output Operation: The Status Blocked indicator must turn ON Red and remain ON for as long as the test piece remains in the defined area (and the Status Clear indicator OFF during the same time). Both Yellow indicators must remain ON steady, unless the top or bottom beam is blocked. If the top (synch) beam is blocked, both Alignment indicators will go OFF.
If the Yellow Alignment indicators begin to flash at any time while the test piece is interrupting the defined area, the installation has failed the trip test. Check for correct sensor orientation and reflective surfaces. Do not continue until the situation is corrected. In Latch Output Operation, the Status Blocked indicator will remain ON until a manual reset is performed (both Yellow Alignment indicators will be flashing).
WARNING: If Trip Test Indicates a Problem
If the EZ-SCREEN Type 2 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.
5. If mirrors are used in the application: Test the defined area on each leg of the sensing path (for example, emitter to mirror, between mirror and receiver, see Figure 17 on page 29
).
Figure 17. Trip Test with Corner Mirror
6. If the
EZ-SCREEN Type 2 System passes all checks during the trip test, go on to Electrical Connections to the
Guarded Machine on page 29.
4.4 Electrical Connections to the Guarded Machine
Verify that power has been removed from the EZ-SCREEN Type 2 and the guarded machine. Make the permanent electrical connections as described in OSSD Output Connections on page 30 and FSD Interfacing Connections on page 30 as required by each individual application.
EZ-SCREEN® Type 2 Light Screen
Lockout/tagout procedures may be required (refer to OSHA 1910.147, ANSI Z244-1, ISO 14118, or the appropriate standard for controlling hazardous energy). Follow relevant electrical standards and wiring codes, such as the NEC, NFPA79 or IEC 60204-1.
Supply power and the external reset switch should already be connected. The EZ-SCREEN Type 2 must also have been aligned and passed the Initial Checkout, as described in Initial Checkout Procedure
The final connections to be made are:
• OSSD outputs
• FSD interfacing
• MPCE/EDM
CAUTION: Shock Hazard
Always disconnect power from the Banner device and the guarded machine before making any connections or replacing any component. Use extreme caution to avoid electrical shock at all
times.
on page 25.
4.4.1 OSSD Output Connections
Refer to the output specifications in Receiver Specifications on page output connections and interfacing the
WARNING: Interfacing of Both OSSDs
Both 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) (for example, PLC, PES, or 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 Banner device output parameters and machine input parameters must be considered when interfacing the Banner device 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 may result in serious bodily injury or death.
EZ-SCREEN Type 2 to the machine.
45 and the warning below before making OSSD
4.4.2 FSD Interfacing Connections
FSDs (Final Switching Devices) takes many forms. The most common are forced-guided, mechanically linked relays, or interface modules. 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 Type 2. FSDs can also be used to control an additional number of hazards by creating multiple safety stop circuits.
Protective Stop (Safety Stop) Circuits
A protective stop (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 protective stop circuit typically comprises a minimum of two normally open 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, protective stop circuits are either single­channel, which is a series connection of at least two normally open contacts; or dual-channel, which is a separate connection of two normally open 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 arrests the hazards and prevents the next cycle from occurring.
EZ-SCREEN® Type 2 Light Screen
The interfacing of the protective stop circuits must be accomplished so that the safety function cannot be suspended, overridden, or defeated, unless accomplished in a manner of the same or greater degree of safety as the machine’s safety related control system that includes the EZ-SCREEN Type 2.
The normally open safety outputs from an interface module provide a series connection of redundant contacts that form protective stop circuits for use in either single-channel or dual-channel control.
Dual-Channel Control
Dual-channel control provides the ability to electrically extend the safe switching point beyond the FSD contacts. With proper monitoring, 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 a loss of the switching ability of one of the FSD outputs. Such failures may lead to a 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 increases, 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 a 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 cannot 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
4.4.3 Machine Primary Control Elements and EDM Input
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 safety distance, see Calculating the
Safety Distance (Minimum Distance) on page 11) must take into account the slower of the two channels. Some machines
offer only one Primary Control Element. For such machines, it may be necessary to duplicate the circuit of the single MPCE, by adding a second. Refer to Generic Wiring to FSDs (manual reset) on page 35 and Generic Wiring — Interface Module
(2-Channel EDM, Manual Reset) on page 36, or consult the machine manufacturer for additional information.
4.4.4 Manual Reset/Remote Test Input and EDM
A means is provided for the connection of an external remote test switch or contact (typically a normally open, held closed). Cycling this switch “turns Off” both OSSD outputs.
A single input provides the means to reset the system from a latch or lockout condition, to externally test the light screen and its interface, and to monitor external devices (EDM) for proper operation. If the System is in Run condition with outputs On, operating the switch results in a test. If the System is Latched or Locked Out, operating the switch results in a reset. If this input is connected to 0V dc or left floating, the System goes to a lockout condition on power-up. (See
Troubleshooting and Lockout Conditions on page 40 for clearing lockouts.)
Connect the receiver’s reset/test wire (pin 8) to the supply voltage (see Generic Wiring to FSDs (manual reset) on page 35 and Generic Wiring — Interface Module (2-Channel EDM, Manual Reset) on page 36) via the reset switch. The switch should be a normally closed (N.C.) reset switch, or contacts of the Machine Control Test circuit (typically a normally open contact held or energized closed), or the monitoring contacts of the external device(s) being verified. One switch could be used for the Reset and Test functions, or they can be separate switches. However, all switches should be mounted as specified for a reset switch (see Reset Switch Location on page 15).
EZ-SCREEN® Type 2 Light Screen
Manual Reset/System Test Procedure
To operate the switch (and perform a manual reset or a system test), open the normally closed (N.C.) switch for a minimum of 1/4 second and then close it.
Manual Reset
From a Latched or Lockout condition, operating the switch results in a manual reset. Safe work procedures must require that a start-up procedure is followed and that the individual performing the reset of the guarding device verifies that the entire hazardous area is clear of all personnel, before performing each reset. If any area can not be observed from the reset switch location, additional supplementary guarding must be used: at minimum, visual and audible warnings of machine start-up.
Resetting a safe guarding device must not initiate hazardous motion.
Remote (External) Test
When in RUN mode, opening this switch for more than 1/4 second will initiate a Test cycle that turns OFF the OSSD outputs and generates an internal self-test.
• Automatic (Machine) Test: An external switch, typically a normally open contact that is held closed, is used to externally generate a test cycle of the switch can be a limit-style switch, a hard contact from a relay, or an output from the machine control logic.
• Manual Test: A normally closed (N.C.) momentary type switch used for manual reset can also be used to manually initiate a test cycle. This remote Test input may be useful for EZ-SCREEN Type 2 System setup and to verify machine control circuit operation.
EZ-SCREEN Type 2 and its interface. Depending on the application this
WARNING: Test Function
A machine or automatic test of the EZ-SCREEN Type 2 and its interface may be required as determined by a risk assessment and appropriate standard (for example, ISO 14121 and EN ISO 13849-1). Failure
to test the safeguarding function at appropriate intervals may lead to the loss of the safety function.
External Device Monitoring Hookup
It is strongly recommended that one normally closed and one normally open, forced-guided monitoring contact of each FSD and MPCE be connected to the Monitoring circuit (see Generic Wiring to FSDs (manual reset) on page 35 and
Generic Wiring — Interface Module (2-Channel EDM, Manual Reset) on page 36). If this is done, proper operation of the
MPCEs will be verified. Receiver quick disconnect pin 8 provides connection for external device monitoring. External Device Monitoring (EDM)
must be wired in one of two configurations: Power Monitoring or No EDM.
• Power Monitoring is a series-parallel connection of monitor contacts that are forced-guided (mechanically linked) from each device controlled by the EZ-SCREEN. The monitoring contacts should transition within 200 milliseconds of the OSSD outputs switching ON or OFF. If the transition results in an open condition on pin 8 (Reset/Test input) longer than 200 ms, a Test cycle will turn OFF the OSSD outputs. Refer to Generic Wiring to FSDs (manual reset) on page 35 and Generic Wiring — Interface Module (2-Channel EDM, Manual Reset) on page 36 for Power Monitoring hookup.
• No Monitoring. Use this configuration initially, in order to perform the initial checkout; see Initial Checkout
Procedure on page 25. 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. To configure the System for No Monitoring, simply do not interface the Power Monitoring circuit (i.e., the four forced-guided normally open contacts from each device) and connect directly to +24V dc.
CAUTION: EDM Monitoring
If the system is configured for "No Monitoring," it is the user’s responsibility to ensure that this does not create a hazardous situation.
EZ-SCREEN® Type 2 Light Screen
4.4.5 Preparing for System Operation
After the initial trip test has been accomplished, and the OSSD safety outputs and EDM connections have been made to the machine to be controlled, the EZ-SCREEN Type 2 is ready for testing in combination with the guarded machine.
The operation of the machine may be put into service. To do this, a Qualified Person must perform the Commissioning Checkout Procedure described in Commissioning Checkout on page 33.
EZ-SCREEN Type 2 with the guarded machine must be verified before the combined System and
4.4.6 Commissioning Checkout
WARNING: Do Not Use Machine Until System Is Working Properly If all of these checks cannot be verified, do not attempt to use the safety system that includes
the Banner device and the guarded machine until the defect or problem has been corrected. Attempts to use the guarded machine under such conditions may result in serious bodily injury or death.
Perform this checkout procedure as part of the System installation after the System has been interfaced to the guarded machine, or whenever changes are made to the System (either a new configuration of the to the machine). A Qualified Person must perform the procedure. Checkout results should be recorded and kept on or near the guarded machine as required by applicable standards.
To prepare the System for this checkout:
1.
Examine the guarded machine to verify that it is of a type and design compatible with the EZ-SCREEN Type 2 System. See Examples: Inappropriate Applications on page 7 for a list of misapplications.
2. Verify that the EZ-SCREEN Type 2 is configured for the intended application.
3. Verify that the safety distance (minimum distance) from the closest danger point of the guarded machine to the defined area is not less than the calculated distance, per Calculating the Safety Distance (Minimum Distance) on page 11.
4. Verify that:
• Access to any dangerous parts of the guarded machine is not possible from any direction not protected by the EZ-SCREEN Type 2 System, hard (fixed) 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 (fixed) 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 Type 2.
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.
6. Examine the electrical wiring connections between the EZ-SCREEN Type 2 OSSD outputs and the guarded machine’s control elements to verify that the wiring meets the requirements stated in Electrical Connections to the
Guarded Machine on page 29.
7. Inspect the area near the defined area (including work pieces and the guarded machine) for reflective surfaces (see
Adjacent Reflective Surfaces on page 16). Remove the reflective surfaces if possible by relocating them, painting,
masking or roughening them. Remaining problem reflections will become apparent during the Trip Test.
8. Verify that power to the guarded machine is Off. Remove all obstructions from the defined area. Apply power to the EZ-SCREEN Type 2 System. Latch Output models: (Manual Power-Up), both Alignment indicators will be flashing Yellow. Perform a manual reset (open the reset switch for 1/4 second, then close it).
9. Observe the Status and Alignment indicators:
• Lockout: Status Blocked flashing Red
• Blocked: Status Blocked On Red Alignment indicators On, Off, or one of each Status Clear Off
• Clear: Status Clear On Green Alignment indicators both On Status Blocked Off
• Latch: (defined Status Blocked On Red Alignment indicators flashing Yellow area clear) Status Clear Off
10.A Blocked condition indicates that one or more of the beams is misaligned or interrupted. See the Alignment procedure in Optical Alignment on page 26 to correct this situation.
11.After the Green and Yellow Status indicators are On, perform the trip test ( Trip Test on page 28) 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 Type 2 passes the trip test.
EZ-SCREEN Type 2 or changes
Important: Do not expose any individual to any hazard during the following checks.
+24V dc
0V dc
Bn (#1)
Gn/Ye (#7)
Bu (#6)
Bk (#5)
Wh (#4)
Vi (#8) Or (#3)
Or/Bk (#2)
n.c.*
n.c.*
n.c.*
n.c.*
n.c.*
EZ-SCREEN® Type 2 Light Screen
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 may result in serious bodily injury or death.
12.Apply power to the guarded machine and verify that the machine does not start up.
13.Interrupt (block) the defined area with the supplied test piece and verify that it is not possible for the guarded machine to be put into motion while the beam(s) is blocked.
Initiate machine motion of the guarded machine and, while it is moving, use the supplied test piece to block the
14. 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 must come to a stop with no apparent delay.
15.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.
16.Remove electrical power to the EZ-SCREEN Type 2. Both OSSD outputs should immediately turn Off, and the machine must not be capable of starting until power is re-applied to the EZ-SCREEN Type 2.
17.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. A Banner Applications Engineer can recommend a suitable instrument.
Do not continue operation until the entire checkout procedure is complete and all problems are corrected.
4.5 Reference Wiring Diagrams
4.5.1 Generic Emitter Wiring Diagram
Figure 18. Emitter—Generic Wiring Diagram
NOTE: *Pins 2, 3, 4, 5, and 8 are not connected or are connected in parallel to the same color wire from the receiver cable.
4.5.2 Generic Wiring to FSDs (manual reset)
+24V dc 0V dc
Receiver
8-pin male Euro-style
face view
*
Bn (Pin #1)
Gn/Ye (#7)
Bu (#6)
Bk (#5)
Wh (#4)
Vi (#8)
Or (#3)
Or/Bk (#2)
+24V dc
Ground
0V dc
OSSD1
OSSD2
Reset/Test
Manual Test
or Reset
(Latch or
Lockout)
Automatic
Test
FSD
Monitoring
Circuit
n.c.
n.c.
FSD
2
FSD
1
Single-Channel
Safety Stop
Circuit
Dual-Channel
Safety Stop
Circuit
NOTE: Do not exceed OSSD maximum load capacitance
specification.
EZ-SCREEN®
Type 2 Light Screen
*See Single-Ended (Machine Interface) Cordsets on page 48
Figure 19. Generic Wiring to FSDs (manual reset)
NOTE: Pins 2 and 3 are not connected, or are connected in parallel to the same color wire from the emitter cordset and properly terminated.
for available cordsets.
+24V dc 0V dc
S1
S2
Y4
Y2
14
24
34
S3
S4
Y3
Y1
13
23
33
K2 K1
Machine
Control
MPCE
2
MPCE
1
IM-T-9A**
Bn (Pin #1) +24V dc
0V dc
OSSD 1
OSSD 2
MPCE Monitoring
Reset/ T
est
n.c.
N.C.
n.c.
Ground
Gn/Y
e (#7)
Bu (#6)
Bk (#5)
Wh (#4)
Vi (#8)
Or (#3)
Or/Bk (#2)
*
*
Receiver
8-pin male Euro-style
face view
*
EZ-SCREEN® Type 2 Light Screen
4.5.3 Generic Wiring — Interface Module (2-Channel EDM, Manual Reset)
Figure 20. Generic Wiring — Interface Module (2-Channel EDM, Manual Reset)
NOTE:
• Pins 2 and 3 are not connected, or are connected in parallel to the same color wire from the emitter cordset and properly terminated.
Installation of transient (arc) suppressors across the coils of MPCE1 and MPC2 is recommended.
•
• See Single-Ended (Machine Interface) Cordsets on page 48 for available cordset information
Other interfacing modules and solutions are available, see Accessories on page 47.
WARNING: Use of 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 creates an unsafe condition.
EZ-SCREEN® Type 2 Light Screen
5 System Operation
5.1 Security Protocol
Certain procedures for installing, maintaining, and operating the EZ-SCREEN Type 2 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 Type 2. The Designated Person is empowered to:
Perform manual resets and hold possession of the reset key (see Reset Procedures on page 37)
•
• Perform the Daily Checkout Procedure
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 Type 2 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 Type 2 System
• Perform all checkout procedures
• Make changes to the internal configuration settings
• Reset the System following a Lockout condition
5.2 Reset Procedures
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 Reset Switch Location on page 15). 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 (for example, 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 provides some level of personal control, since the key may be removed from the switch. This hinders 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.
5.2.1 Receiver Resets
EZ-SCREEN Type 2 receiver has a Reset input, pin 8 (violet wire), that provides for a manual reset input signal.
The Receiver manual resets are required in the following situations:
• Trip Output operation – only after a Lockout (see Troubleshooting and Lockout Conditions on page 40 for causes).
• Latch Output operation – at power-up, after each Latch condition occurs, or after a Lockout.
Reset Routine
To reset the receiver, close the reset switch for 1/4 to 2 seconds, then open it. An alternative method to reset either component is to power the sensor down, then power it up.
NOTE: Closing the reset switch too long will cause the sensor to ignore the reset request; the switch must be closed from 1/4 seconds to 2 seconds, but no longer.
5.2.2 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.
5.3 Status Indicators
The emitter has one LED and the receiver has four, to provide an ongoing indication of light screen and system operation. In normal operation, the status indicators are as described below and as shown in Figure 21 on page 38. Additional LED condition combinations indicate errors or faults; refer to Troubleshooting and Lockout Conditions on page
40.
Status
BLOCKED
CLEAR
Alignment
BOTTOM
TOP
TRIP
Status
BLOCKED
CLEAR
Alignment
BOTTOM
TOP
LATCH
Status
BLOCKED
CLEAR
Alignment
BOTTOM
TOP
TRIP
Status
BLOCKED
CLEAR
Alignment
BOTTOM
TOP
LATCH
Status
BLOCKED
CLEAR
Alignment
BOTTOM
TOP
TRIP
Status
BLOCKED
CLEAR
Alignment
BOTTOM
TOP
LATCH
Status
BLOCKED
CLEAR
Alignment
BOTTOM
TOP
TRIP
Status
BLOCKED
CLEAR
Alignment
BOTTOM
TOP
LATCH
Status
BLOCKED
CLEAR
Alignment
BOTTOM
TOP
TRIP
Status
BLOCKED
CLEAR
Alignment
BOTTOM
TOP
LATCH
Status
BLOCKED
CLEAR
Alignment
BOTTOM
TOP
LATCH
Trip Output Models
Latch Output Models
Sync Beam
EZ-SCREEN® Type 2 Light Screen
5.3.1 Receiver
Alignment Indicators
Two Yellow Alignment indicators (Top and Bottom) tell the alignment status of the top and bottom beams in the light screen. This is helpful for sensor alignment: first align the Top beam (the sync beam), then the bottom beam. The Alignment indicators also flash together to indicate a manual reset is needed (Latch output models).
Indicator Color On Flashing Off
Top Alignment Yellow Top (sync) beam is aligned
Bottom Alignment Yellow Bottom beam is aligned and
and clear
clear
Status Indicators
Two Status indicators (Blocked and Clear) work together to indicate the status of the light screen.
Indicator Color On Flashing Off
Clear Status Green
Blocked Status Red
Light screen aligned and clear; outputs On
Light screen blocked; outputs Off
(Both together) System is aligned; waiting for manual reset (Latch models)
Top (sync) beam is blocked or misaligned
Bottom beam is blocked or misaligned; sync beam possibly blocked
Test mode (with Red On) Light screen blocked; outputs Off
Lockout
Light screen aligned and clear; outputs On
Figure 21. Status Indicator behavior during the trip test
5.3.2 Emitter
Power/Fault Indicator: Green LED indicates whether power is applied or a Fault condition exists.
Emitter
Indicator Color ON Flashing OFF
Power/Fault Green Power is applied Fault indication No Power
EZ-SCREEN®
Type 2 Light Screen
5.4 Normal Operation
5.4.1 System Power-Up
Apply power and verify that the Status Blocked LED is OFF, and Status Clear LED is ON Green. Trip Output Systems: When power is applied, each sensor will conduct self-tests to detect critical internal faults and
prepare for operation. If either sensor detects a critical fault, scanning ceases, the receiver outputs remain Off and diagnostic information is displayed via the LEDs; see Troubleshooting and Lockout Conditions on page are detected, the receiver will look 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 Systems: When power is applied, each sensor will conduct self-tests to detect critical internal faults and prepare for operation. If either sensor detects a critical fault, scanning ceases, the receiver outputs remain Off and diagnostic information is displayed via the LEDs; see Troubleshooting and Lockout Conditions on page 40). If no faults are detected, the receiver will look 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 Alignment indicators will flash to indicate the System is waiting for a manual reset. After a valid manual reset, the System enters Run mode and begins scanning.
5.4.2 Run Mode
Trip Output Systems: If any beams become blocked while the System is running, the receiver outputs turn Off within the stated System response time (see EZ-SCREEN Type 2 Models With Response Times on page 12). When all the beams 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.
40
). If no faults
Latch Output Systems: If any beams become blocked while the System is running, the receiver outputs turn Off within the stated System response time (see EZ-SCREEN Type 2 Models With Response Times on page 12). When all the beams become clear, the receiver Clear Status indicator be ON Green and the Alignment indicators will flash, indicating the System is waiting for a manual latch reset. When a valid reset signal is received and all beams remain clear, the receiver outputs turn ON.
Internal Faults (Lockouts): If either sensor detects a critical fault, scanning ceases, the receiver outputs turn Off and diagnostic information is displayed via the LEDs. See Troubleshooting and Lockout Conditions on page 40 for resolution of error/fault conditions.
5.4.3 Manual Reset Procedure
Open the reset switch for at least 1/4 second, then close it.
5.5 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. 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 Checkout Procedure Schedule on page 44 should be posted on or near the machine.
Whenever changes are made to the System (either a new configuration of the EZ-SCREEN Type 2 System or changes to the machine), the Commissioning Checkout should be performed (see Commissioning Checkout on page 33).
NOTE: Verify Proper Operation
). A copy of these test results
The EZ-SCREEN Type 2 can operate as it is designed only if it and the guarded machine are operating properly, both separately and together. It is the user’s responsibility to verify this, on a regular basis, as instructed in Checkout Procedure Schedule in an increased risk of harm.
Before the System is put back into service, verify that the EZ-SCREEN Type 2 System and the guarded machine perform exactly as outlined in the checkout procedures and any problem(s) are found and corrected.
on page 44 . Failure to correct such problems can result
EZ-SCREEN® Type 2 Light Screen
6 Troubleshooting and Maintenance
6.1 Troubleshooting and Lockout Conditions
Evaluate status indicators per Status Indicators on page 37 A Lockout condition causes all of the EZ-SCREEN Type 2 OSSD outputs to turn or remain OFF, sending a stop signal to the
guarded machine. Each sensor provides diagnostic information, via the LEDs, to assist in the identification of the cause(s) of lockouts. Lockout conditions are indicated as shown in #unique_88/TABLE_2884D935C0C24180A3F3A8D10833E3B1.
.
6.2 Recovery Procedures
To recover from a Lockout condition, correct all errors and perform sensor resets as indicated below.
6.2.1 Receiver (System Reset)
Open the Reset switch for 0.25 second and then close it, or (for Trip Output models not using a reset button) power the sensor down, wait a second or two, then power it up.
6.2.2 Emitter Reset
Power the sensor down, wait a second or two, and then power it up (in the unlikely event that an emitter reset is needed).
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 Type 2 System or other safeguards is dangerous and could result in an increased risk of harm.
WARNING: Shut Down Machinery Before Servicing
The machinery to which the EZ-SCREEN Type 2 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, ISO 14118, or the appropriate standard for controlling hazardous energy). Servicing the serious bodily injury or death.
EZ-SCREEN Type 2 while the hazardous machinery is operational could result in
Table 2: Emitter Troubleshooting
Emitter
Display LED Status Possible Cause and Appropriate Action
Power/Fault Green flashing Emitter Failure
• Check the power supply for low or erratic voltage, or excessive electrical noise.
•
Verify the sensor has a good earth ground.
If the condition continues, contact Factory.
Power/Fault Green OFF Power Supply Failure - Check the power supply.
EZ-SCREEN® Type 2 Light Screen
Table 3: Receiver Troubleshooting
Receiver
Display LED Status Possible Cause and Appropriate Action
Alignment Top Alignment Bottom Status Blocked Status Clear
Alignment Top Alignment Bottom Status Blocked Status Clear
Alignment Top Alignment Bottom Status Blocked Status Clear
Alignment Top Alignment Bottom Status Blocked Status Clear
Alignment Top Alignment Bottom Status Blocked Status Clear
Alignment Top Alignment Bottom Status Blocked Status Clear
Yellow flashing Yellow flashing Red flashing Green OFF
Yellow flashing Yellow OFF Red flashing Green OFF
Yellow OFF Yellow OFF Red flashing Green OFF
Yellow OFF Yellow OFF Red ON Green ON
Yellow OFF Yellow OFF Red ON Green flashing
Yellow OFF Yellow OFF Red OFF Green OFF
Output Fault
• Check output connections. Check for a short between OSSD1 and OSSD2 or to a secondary
• source of power.
• When connecting to a capacitive load greater than 0.1 μF, contact Factory.
• Open Reset/Test for at least 0.25 seconds and close.
If the condition continues, contact Factory. Optical Fault
•
Open Reset/Test for at least 0.25 seconds and close.
•
Check for optical interference or noise.
If the condition continues, contact Factory.
Internal Fault
•
Open Reset/Test for at least 0.25 seconds and close. Check the power supply for low or erratic voltage, or excessive
• electrical noise.
• Verify the sensor has a good earth ground.
If the condition continues, contact Factory. Reset/Test Input Fault
•
Reset/Test input open at power-up. Switch the device OFF, verify the Reset/Test input is connected
• to +24 V dc (e.g., the reset button or switch is closed) and reapply power.
Test Mode - Reset/Test input is open.
Power Supply Failure - Check power supply.
6.3 Electrical and Optical Noise
The EZ-SCREEN Type 2 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 In very extreme electrical noise cases, a Lockout is possible. To minimize the effects of transitory noise, the EZ-SCREEN Type 2 responds to noise only if the noise is detected on multiple consecutive scans.
If random nuisance Trips occur, check the following:
•
Poor connection between the sensor and earth ground
• Optical interference from adjacent light screens or other photoelectrics
• Sensor input or output wires routed too close to noisy wiring
6.3.1 Sources of Electrical Noise
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.
EZ-SCREEN®
All EZ-SCREEN Type 2 wiring is low voltage; running these wires alongside power wires, motor/servo wires, or other high­voltage wiring, can inject noise into the EZ-SCREEN Type 2 System. It is good wiring practice (and may be required by code) to isolate
The Banner model BT-1 Beam Tracker (see Alignment Aids on page 55 ) is a 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 entering the receiver lens. Press the RCV button on the BT-1 and position the Beam Tracker on the wires going to the EZ-SCREEN Type 2 or any other nearby wires. The noise caused by switching of the inductive loads should be addressed by installing proper transient suppression across the load.
Type 2 Light Screen
EZ-SCREEN Type 2 wires from high-voltage wires.
6.3.2 Sources of Optical Noise
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 (see Alignment Aids on page 55 ) 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 emitted light from other sources (other safety light screens, screens or points, or standard photoelectric sensors).
6.4 Servicing and Maintenance
6.4.1 Cleaning
EZ-SCREEN Type 2 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.
6.4.2 Banner Engineering Corp Limited Warranty
Banner Engineering Corp. warrants its products to be free from defects in material and workmanship for one year following the date of shipment. Banner Engineering Corp. will repair or replace, free of charge, any product of its manufacture which, at the time it is returned to the factory, is found to have been defective during the warranty period. This warranty does not cover damage or liability for misuse, abuse, or the improper application or installation of the Banner product.
THIS LIMITED WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES WHETHER EXPRESS OR IMPLIED (INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE), AND WHETHER ARISING UNDER COURSE OF PERFORMANCE, COURSE OF DEALING OR TRADE USAGE.
This Warranty is exclusive and limited to repair or, at the discretion of Banner Engineering Corp., replacement. IN NO EVENT SHALL BANNER ENGINEERING CORP. BE LIABLE TO BUYER OR ANY OTHER PERSON OR ENTITY FOR ANY EXTRA COSTS, EXPENSES, LOSSES, LOSS OF PROFITS, OR ANY INCIDENTAL, CONSEQUENTIAL OR SPECIAL DAMAGES RESULTING FROM ANY PRODUCT DEFECT OR FROM THE USE OR INABILITY TO USE THE PRODUCT, WHETHER ARISING IN CONTRACT OR WARRANTY, STATUTE, TORT, STRICT LIABILITY, NEGLIGENCE, OR OTHERWISE.
Banner Engineering Corp. reserves the right to change, modify or improve the design of the product without assuming any obligations or liabilities relating to any product previously manufactured by Banner Engineering Corp.
6.4.3 Warranty Service
Contact Banner Engineering for troubleshooting of this device. Do not attempt any repairs to this Banner device; it contains no field-replaceable parts or components.
be defective by a Banner Applications Engineer, they will advise you of Banner's RMA (Return Merchandise Authorization) procedure.
Important: If instructed to return the device, pack it with care. Damage that occurs in return shipping is not covered by warranty.
If the device, device part, or device component is determined to
6.4.4 Manufacturing Date
Every EZ-SCREEN Type 2 produced is marked with a code that defines the week of manufacture and manufacturing location.
The code format (U.S. Standard format) is:
YYWWL
• YY = year of manufacture, 2 digits
• WW = week of manufacture, 2 digits
• L = manufacturing location, 1 digit
EZ-SCREEN® Type 2 Light Screen
Example
: 1135H = 2011, week 35, Huron
6.4.5 Disposal
Devices that are no longer in use should be disposed of according to the applicable national and local regulations.
EZ-SCREEN® Type 2 Light Screen
7 Checkout Procedure Schedule
This section lists the schedule of checkout procedures and describes where each procedure is documented. Checkouts must be performed as described. Results should be recorded and kept in the appropriate place (for example, near the machine, and/or in a technical file).
7.1 Schedule of Checkouts
Checkout cards and this manual can be downloaded at Banner Website.
Checkout Procedure
Trip Test
Commissioning Checkout
Shift/Daily Checkout
Semi-Annual Checkout
When to Perform Where to Find the Procedure
• At Installation
• Any time the System, the guarded machine, or any part of the application is altered.
At Installation
•
•
Whenever changes are made to the System (for example, either a new configuration of the EZ-SCREEN Type 2 or changes to the guarded machine).
• At each shift change
• Machine setup change
• Whenever the System is powered up
During continuous machine run periods, this checkout should be performed at intervals not to exceed 24 hours.
Every six months following System installation, or whenever changes are made to the System (either a new configuration of the EZ-SCREEN Type 2
or changes to the machine).
Trip Test on page
Commissioning Checkout on page
Daily Checkout Card (Banner p/n 122450
A copy of the checkout results should be recorded and kept in the appropriate place (for example, near or on the machine, in the machine's technical file).
Semi-Annual Checkout Card (Banner p/n
122451)
A copy of the checkout results should be recorded and kept in the appropriate place (for example, near or on the machine, in the machine's technical file).
28 Qualified Person
33 Qualified Person
)
Who Must Perform the Procedure
Designated Person or Qualified Person
Qualified Person
8 Specifications and Accessories
EZ-SCREEN® Type 2 Light Screen
EZ-SCREEN Type 2
An
System includes a compatible emitter and receiver (equal length; available separately or in pairs), and two cables. Mounting hardware is included with each emitter and receiver. Interfacing solutions include IM-T-.. modules, or redundant positively guided contactors; see Interface Modules on page 50.
8.1 Specifications
8.1.1 General Specifications
Short Circuit Protection
All inputs and outputs are protected from short circuits to +24 V dc or dc common
Electrical Safety Class
III (per IEC 61140: 1997)
Safety Rating
Type 2 per IEC 61496-1, -2 Category 2 PL d per EN ISO13849-1 SIL2 per IEC 61508
8 Beams 96 Beams
MTTFd (EN ISO 13849-1) 284.14 yr. 47.65 yr.
Mission Time, Tm 20 years
PFH (h-1) (IEC 61508) 6.9 x 10
Operating Range
0.2 to 15 m (8 in. to 50 ft) and/or lens shields:
• Lens shields — approx 10% less range per shield
• Glass-surface mirrors — approx 8% less range per mirror
See the specific mirror datasheet for more information.
Resolution
30 mm
Effective Aperture Angle (EAA)
Meets Type 2 requirements per IEC 61496-2, Section 5.2.9 ±5° at 3 m
— Range decreases with use of mirrors
-8
6.5 x 10
-7
Ambient Light Immunity
> 10,000 lux at 5° angle of incidence
Strobe Light Immunity
Immune as per IEC 61496-2
Response Time
Dependent on number of beams
Response Times on page
Enclosure
Extruded aluminum housing with yellow polyester powder finish standard and well-sealed, rugged die-cast zinc end caps, acrylic lens cover
Environmental Rating
IEC IP65
Operating Conditions
0 °C to +55 °C (+32 °F to +131 °F) 95% maximum relative humidity (non-condensing)
Shock and Vibration
Components have passed vibration and shock tests according to IEC 61496-1. This includes vibration (10 cycles) of 10-55 Hz at 0.35 mm (0.014 in) single amplitude (0.70 mm peak-to-peak) and shock of 10 g for 16 milliseconds (6,000 cycles).
Certifications
(see EZ-SCREEN Type 2 Models With
12)
8.1.2 Emitter Specifications
Supply Voltage at the Device
24 V dc ±20% (use a PELV-rated power supply according to EN IEC
60950). The external voltage supply must be capable of buffering brief mains interruptions of 20 ms, as specified in IEC/EN 60204-1.
8.1.3 Receiver Specifications
Supply Voltage at the Device
24 V dc ±15% (use a PELV-rated power supply according to EN IEC
60950).The external voltage supply must be capable of buffering brief mains interruptions of 20 ms, as specified in IEC/EN 60204-1.
Supply Current (no load)
90 mA maximum, exclusive of OSSD1 and OSSD2 loads (up to an additional 0.5 A each)
EDM Input
Power monitoring accomplished via Reset/Remote Test input
Reset Input/Remote Test Input
Connect to +24 V dc via a normally closed (N.C.) reset switch Auto Reset (Trip Output) Models: Test/Reset Manual Reset (Latch Output) Models: Test/Restart/Reset
Supply Current
50 mA maximum
Wavelength of Emitter Elements
Infrared LEDs, 850 nm at peak emission
Output Signal Switching Devices (OSSDs)
Two redundant solid-state 24 V dc, 0.5 A max. sourcing OSSD (Output Signal Switching Device) safety outputs. (Use optional interface modules for ac or larger dc loads.) Not capable of the Banner "Safety Handshake". ON-State voltage: > Vin-1.5 V dc OFF-State, maximum allowed voltage: 0.2 V dc Maximum load capacitance: 100 nF Minimum load resistance: 48 Ω Open ground leakage current: 0.65 mA maximum
test pulse width: 200 to 250 microseconds typical
OSSD OSSD test pulse period: 260 ms typical
Status Indicators
See Status Indicators on page 37 and Emitter Reset on page 40 Emitter: Green LED, Power ON Receiver: Two yellow alignment indicators (top and bottom), two status indicators (blocked and clear)
10.8 mm (0.43")
31.8 mm (1.25")
31.8 mm (1.25")
16.9 mm (0.66")
25.4 mm (0.96")
L2
L3
L1
Y
43.0 mm (1.69")
10.0 mm (0.39")
65 mm
(2.6")
R13 mm (0.5")
minimum bend
EZ-SCREEN® Type 2 Light Screen
8.1.4 Emitter and Receiver Dimensions
Emitter or Receiver
Model
Housing Length
L1
Distance Between Bracket Holes
L2 L3
Defined Area† Y
LS2..-150 215 mm (8.5 in) 249 mm (9.8 in) 186 mm (7.3 in) 150 mm (5.9 in) LS2..-300 365 mm (14.4 in) 349 mm (13.7 in) 336 mm (13.2 in) 300 mm (11.8 in) LS2..-450 515 mm (20.3 in) 549 mm (21.6 in) 486 mm (19.1 in) 450 mm (17.7 in) LS2..-600 665 mm (26.2 in) 699 mm (27.5 in) 636 mm (25.0 in) 600 mm (23.6 in) LS2..-750 815 mm (32.1 in) 849 mm (33.4 in) 786 mm (30.9 in) 750 mm (29.5 in) LS2..-900 964 mm (38.0 in) 998 mm (39.3 in) 935 mm (36.8 in) 900 mm (35.4 in) LS2..-1050 1114 mm (43.9 in) 1148 mm (45.2 in) 1085 mm (42.7 in) 1050 mm (41.3 in) LS2..-1200 1264 mm (49.8 in) 1298 mm (51.1 in) 1235 mm (48.6 in) 1200 mm (47.2 in) LS2..-1350 1414 mm (55.7 in) 1448 mm (57.0 in) 1385 mm (54.6 in) 1350 mm (53.1 in) LS2..-1500 1563 mm (61.5 in) 1597 mm (62.9 in) 1534 mm (60.4 in) 1500 mm (59.1 in) LS2..-1650 1713 mm (67.4 in) 1747 mm (68.8 in) 1684 mm (66.3 in) 1650 mm (65.0 in) LS2..-1800 1863 mm (73.3 in) 1897 mm (74.7 in) 1834 mm (72.2 in) 1800 mm (70.9 in)
8.1.5 Bracket Dimensions
The following are end cap and center bracket dimensions for brackets supplied with each EZ-SCREEN Type 2 receiver. All brackets have a thickness of 2.3 mm, and are black zinc plated with a chromate dip finish. Bracket mounting hardware is included.
emitter or
Standard End Cap Brackets
10.7 mm (0.42")
12.7 mm (0.50")
15.7 mm (0.62")
23.2 mm (0.91")
26.7 mm (1.05")
27.2 mm (1.07")
ø15.2 mm
(4.53")
6.4 mm (0.25")
2 x ø4.8 mm
(0.19")
14.0 mm (0.55")
15.7 mm (0.62")
31.9 mm (1.25")
20.0 mm (0.79")
7.1 mm (0.28")
5.8 mm (0.23")
42.4 mm (1.67")
2.3 mm (0.09")
Slots have clearance for M3 screws (supplied) and allow for ±30° rotation
C
L
2 x 19.7 mm (0.77")
37.6 mm (1.48")
3 x 10.2 mm
(0.40")
3.0 mm (0.12")
2 x 6.6 mm (0.26")
17.8 mm (0.70")
38.1 mm (1.50")
39.4 mm (1.55")
2 x 4.7 mm (0.18")
2 x 8.5 mm
(0.33")
55.9 mm (2.20")
28.4 mm
(1.12")
4.6 mm (0.18")
0.8 mm (0.03")
AA
41.5°
30°
60°
2.3 mm (0.09")
3.6 mm (0.14")
27.2 mm (1.07")
28.2 mm (1
.11")
7.4 mm (0.29")
26.7 mm (1.08")
r 20.3 mm
(0.8")
15.9 mm (0.63")
31.8 mm (1.25")
12.7 mm (0.50")
15.9 mm (0.62")
25.4 mm (1.0")
7.1
1 mm
(0.28")
2 x ø4.8mm
(0.19")
13.2 mm (0.52")
5.6 mm (0.22")
5.9 mm (0.23")
19.9 mm (0.78")
Model USMB-1
Standard Center Brackets
Model Number Description USCMB-1 1 bracket is included for sensors 600-900 mm long USCMB-2 2 brackets are included for sensors 1050-1350 mm long USCMB-3 3 brackets are included for sensors 1500-1800 mm long
EZ-SCREEN® Type 2 Light Screen
8.2 Accessories
Additional interfacing solutions and accessories continue to be added; refer to Banner Website for a current list.
44 Typ.
ø 14.5
M12 x 1
5
4
3
2
8
1 7
6
1
7
6
5
4
3
2
8
EZ-SCREEN® Type 2 Light Screen
8.2.1 Cordsets
Single-Ended (Machine Interface) Cordsets
Single-Ended (Machine Interface) Cordsets (one cable for each emitter and receiver). Overmold and cables are PVC-jacketed. Cables are unterminated on one end to interface with guarded machine.
8-Pin Threaded M12/Euro-Style Cordsets Model Length Style Dimensions Pinout (Female) QDE-815D 4.57 m (15 ft) QDE-825D 7.62 m (25 ft) QDE-850D 15.2 m (50 ft)
QDE-875D 22.9 m (75 ft)
QDE-8100D 30.5 m (100 ft)
Straight
QDE-8..D Pinout/Color Code European M12 Specification Pin Color Function Pin Color Function
1 Bn +24V dc 1 Wh +24V dc 2 Or/Bk n.c. 2 Bn n.c. 3 Or n.c. 3 Gn n.c. 4 Wh OSSD #2 4 Ye OSSD #2 5 Bk OSSD #1 5 Gy OSSD #1 6 Bu 0V dc 6 Pk 0V dc 7 Gn/Ye Gnd/Chassis 7 Bu Gnd/Chassis 8 Vi Reset 8 Rd Reset
1
Connector (female face view)
1 = Brown 2 = Or/Bl 3 = Orange 4 = White
5 = Black 6 = Blue 7 = Gn/Ye 8 = Violet
1
The European M12 Specification pin assignment and color codes are listed for reference only. You must verify the suitability of these cables for each application.
40 Typ.
ø 14.5
M12 x 1
44 Typ.
ø 14.5
M12 x 1
5
4
3
2
8
1 7
6
5
6
7
1
8
2 3
4
3 m
(9.8')
21.5 mm (0.85")
13.0 mm (0.51")
M12 x 1
O-Ring
1/4-18NPT
ø 18.0 mm
(0.71")
7.0 mm (0.28")
EZ-SCREEN® Type 2 Light Screen
Double-Ended Cables
Double-ended cables are generally used to interconnect with a bulkhead connector (see below). They are also useful for extending either the branch or trunk cables of a model CSB splitter cordset (see Splitter Cordsets on page 49
8-Pin Threaded M12/Euro-Style Cordsets―Double Ended Model (8-pin/8-pin ) DEE2R-81D 0.31 m (1 ft) DEE2R-83D 0.91 m (3 ft) DEE2R-88D 2.44 m (8 ft) DEE2R-815D 4.57 m (15 ft) DEE2R-825D 7.62 m (25 ft) DEE2R-850D 15.2 m (50 ft)
DEE2R-875D 22.9 m (75 ft)
2
Length Style Dimensions Pinout
Female Straight/
Male Straight
).
Female
Male
DEE2R-8100D 30.5 m (100 ft)
1 = White
2 = Brown
3 = Green
4 = Yellow
5 = Gray 6 = Pink 7 = Blue 8 = Red
Bulkhead Connector
Connector for panel connection of EZ-SCREEN Type 2 emitter and receiver cables.
Model Connection Dimensions
PMEF-810D
8-pin Euro-style female connector 3 m (10 ft) wires, cut to length (Banner color code); 22 AWG/0.33 mm²
Splitter Cordsets
Model CSB splitter cordsets allow easy interconnection between an EZ-SCREEN Type 2 providing a single “homerun” cable for the optional “swapable” connection. 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 ft long. The model QDE-8..D single-ended cables may be used to extend the QD trunk for cut-to-length applications.
8-pin receiver and its 8-pin emitter,
2
Standard cordsets are yellow PVC with black overmold. For black PVC and overmold, add suffix "B" to model number (example, DEE2R-81DB)
5
6
7
1
8
2 3
4
5
4
3
2
8
1 7
6
44 Typ.
[1.73"]
43.0
[1.69"]
Ø14.5 [0.57"]
M12 x 1
Ø14.5 [0.57"]
40 Typ.
[1.58"]
18.0
[0.71"]
Ø4.5
[0.18"]
35 [1.38"]
M12 x 1
Pin #1 (+24V dc) Pin #2 (n.c.) Pin #3 (n.c.) Pin #4 (OSSD#2) Pin #5 (OSSD#1) Pin #6 (0V dc) Pin #7 (GND) Pin #8 (RESET)
Pin #1 (+24V dc) Pin #2 (n.c.) Pin #3 (n.c.) Pin #4 (OSSD#2) Pin #5 (OSSD#1) Pin #6 (0V dc) Pin #7 (GND) Pin #8 (RESET)
Pin #1 (+24V dc) Pin #2 (n.c.) Pin #3 (n.c.) Pin #4 (OSSD#2) Pin #5 (OSSD#1) Pin #6 (0V dc) Pin #7 (GND) Pin #8 (RESET)
M12 Male
or
unterminated
M12 Female
M12 Female
EZ-SCREEN® Type 2 Light Screen
8-Pin Threaded M12/Euro-Style Splitter Cordsets—Flat Junction Model Trunk (Male) Branches (Female) Pinout CSB-M1280M1280 No trunk No branches Male CSB-M1281M1281 0.3 m (1 ft) CSB-M1288M1281 2.44 m (8 ft) CSB-M12815M1281 4.57 m (15 ft) CSB-M12825M1281 7.62 m (25 ft) CSB-UNT825M1281
3
7.62 m (25 ft) Unterminated
2 x 0.3 m (1 ft)
Female
1 = Brown
2 = Or/Bk
3 = Orange
4 = White 5 = Black
6 = Blue
7 = Gn/Ye
8 = Violet
8.2.2 Interface Modules
Interface modules provide forced-guided, mechanically-linked relay (safety) outputs for the See Banner data sheet p/n 62822 for more information.
Model Description IM-T-9A Interface module, 3 N.O. redundant-output 6 amp contacts IM-T-11A Interface module, 2 N.O. redundant-output 6 amp contacts, plus 1 N.C. auxiliary contact
8.2.3 Contactors
If used, two contactors per
3
Standard cordsets are yellow PVC with black overmold. For black PVC and overmold, add suffix B to model number (example, CSB­M1280M1280B).
EZ-SCREEN Type 2 System are required.
EZ-SCREEN Type 2
System.
EZ-SCREEN® Type 2 Light Screen
Model Description 11-BG00-31-D-024 10 amp positive-guided contactor, 3 N.O., 1 N.C. BF1801L024 18 amp positive-guided contactor, 3 N.O., 1 N.C. (N.C. contact rated at 10 amps)
8.2.4 Lens Shield
Constructed of 1.5 mm (0.06 in) clear polycarbonate; attach to sensor using supplied adhesive-backed Neoprene foam strips.
NOTE: The total range decreases by approximately 10% per shield.
Lens Shield Model Sensor Defined Area Height Lens Shield Length LSS-150 150 mm (5.9 in) 210 mm (8.3 in) LSS-300 300 mm (11.8 in) 360 mm (14.2 in) LSS-450 450 mm (17.7 in) 510 mm (20.1 in) LSS-600 600 mm (23.6 in) 660 mm (26.0 in) LSS-750 750 mm (29.5 in) 810 mm (31.9 in) LSS-900 900 mm (35.4 in) 959 mm (37.8 in) LSS-1050 1050 mm (41.3 in) 1109 mm (43.7 in) LSS-1200 1200 mm (47.2 in) 1259 mm (49.6 in) LSS-1350 1350 mm (53.1 in) 1409 mm (55.5 in) LSS-1500 1500 mm (59.1 in) 1558 mm (61.3 in) LSS-1650 1650 mm (65.0 in) 1708 mm (67.2 in) LSS-1800 1800 mm (70.9 in) 1858 mm (73.1 in)
8.2.5 EZ-LIGHT® for EZ-SCREEN
®
Provides clear, 360° indication of the of the EZ-SCREEN receiver's output status. Use with a CSB splitter cable and optional DEE2R double-ended cables. See data sheet p/n 121901 for more information.
Models Construction Connector/LED Function/Inputs
M18RGX8PQ8
T18RGX8PQ8
T30RGX8PQ8
K30LRGX8PQ8
4
Available in a kit that includes one M18 EZ-LIGHT, one SMB18A mounting bracket, and hardware for mounting to the side channel of an EZ­SCREEN housing (kit model number EZA-M18RGX8PQ8).
4
Nickel-plated brass housing, M18x1 thread; thermoplastic lens
Fully encapsulated IP67
Thermoplastic polyester housing, thermoplastic lens
Fully encapsulated IP67
Polycarbonate housing, 30 mm thermoplastic dome, 22 mm base mount
Fully encapsulated, IP67
8-pin Euro-style Integral QD
Red/Green indication follows OSSD output of the EZ-SCREEN receiver
ON Red:
Power ON Beam Blocked or Lockout
ON Green:
Power ON Beam Clear
PNP (Sourcing)
(4) M10 Bolt
Pole 40 mm (1.58") Square
Useable
Stand Height
Base
6.4 mm (0.25")
L1
53.8 mm (2.12")
L2
Y
50.8 mm (2.00")
72.9 mm (2.87")
M4 x 10 mm Screw (8 supplied)
EZ-SCREEN® Type 2 Light Screen
Models Construction Connector/LED Function/Inputs
Polycarbonate housing, 50 mm thermoplastic dome, 30 mm base
K50LRGX8PQ8
mount
Fully encapsulated, IP67
Polycarbonate housing, 50 mm thermoplastic dome, flat or DIN
K80LRGX8PQ8
mount
Encapsulated electronics, IP67
8.2.6 MSA Series Stands
Base included. Available without a base by adding the suffix NB to the model number (for example, MSA-S42-1NB).
Stand Model Pole Height Useable Stand
Height
MSA-S24-1 610 mm (24 in) 483 mm (19 in) 616 mm (24.25 in) MSA-S42-1 1067 mm (42 in) 940 mm (37 in) 1073 mm (42.25 in) MSA-S66-1 1676 mm (66 in) 1550 mm (61 in) 1682 mm (66.25 in) MSA-S84-1 2134 mm (84 in) 2007 mm (79 in) 2140 mm (84.25 in)
Overall Stand Height
8.2.7 MSM Series Corner Mirrors
Rear-surface glass mirrors are rated at 85% efficiency. The total sensing range decreases by approximately 8% per mirror. See mirror data sheet p/n 43685 or Banner Website for further information.
Mirror Model
MSM8A 150 mm (5.9 in) 267 mm (10.5 in) 323 mm (12.7 in) 292 mm (11.5 in) MSM12A 300 mm (11.8 in) 356 mm (14 in) 411 mm (16.2 in) 381 mm (15 in) MSM20A 450 mm (17.7 in) 559 mm (22 in) 615 mm (24.2 in) 584 mm (23 in) MSM24A 600 mm (23.6 in) 660 mm (26 in) 716 mm (28.2 in) 686 mm (27 in) MSM32A 750 mm (29.5 in) 864 mm (34 in) 919 mm (36.2 in) 889 mm (35 in) MSM36A 900 mm (35.4 in) 965 mm (38 in) 1021 mm (40.2 in) 991 mm (39 in) MSM44A 1050 mm (41.3 in) 1168 mm (46 in) 1224 mm (48.2 in) 1194 mm (47 in)
MSM48A 1200 mm (47.2 in) 1270 mm (50 in) 1326 mm (52.2 in) 1295 mm (51 in)
8.2.8 SSM Series Corner Mirrors
• Rear-surface glass mirrors are rated at 85% efficiency. The total sensing range decreases by approximately 8% per
Defined Area Length Reflective Area Y Mounting L1 Mounting L2
mirror. See mirror data sheet p/n 61934 or Banner Website for further information.
L1
L3
L2
Y
101.2 mm (3.98")
100 mm
(3.94")
115 mm
(4.53")
M6 x 19 mm
screw
(4 supplied)
M5 x 10 mm
screw
(4 supplied)
EZ-SCREEN® Type 2 Light Screen
• Stainless steel reflective surface models are also available. See datasheet p/n 67200.
• Robust construction, two mounting brackets and hardware included.
•
EZA-MBK-2 adapter bracket is required for use with MSA Series stand, see Accessory Mounting Brackets on page 53 .
NOTE: Brackets may be inverted from the positions shown, decreasing dimension L1 by 58 mm (2.3 in).
Mirror Model
SSM-200 150 mm (5.9 in) 200 mm (7.9 in) 278 mm (10.9 in) 311 mm (12.2 in) SSM-375 300 mm (11.8 in) 375 mm (14.8 in) 486 mm (19.1 in) 453 mm (17.8 in) SSM-550 450 mm (17.7 in) 550 mm (21.7 in) 661 mm (26.0 in) 628 mm (24.7 in) SSM-675 600 mm (23.6 in) 675 mm (26.6 in) 786 mm (31.0 in) 753 mm (29.6 in) SSM-825 750 mm (29.5 in) 825 mm (32.5 in) 936 mm (36.9 in) 903 mm (35.6 in) SSM-975 900 mm (35.4 in) 975 mm (38.4 in) 1086 mm (42.8 in) 1053 mm (41.5 in) SSM-1100 1050 mm (41.3 in) 1100 mm (43.3 in) 1211 mm (47.7 in) 1178 mm (46.4 in) SSM-1275 1200 mm (47.2 in) 1275 mm (50.2 in) 1386 mm (54.6 in) 1353 mm (53.3 in) SSM-1400 1350 mm (53.1 in) 1400 mm (55.1 in) 1511 mm (59.5 in) 1478 mm (58.2 in) SSM-1550 1500 mm (59.0 in) 1550 mm (61.0 in) 1661 mm (65.4 in) 1628 mm (64.1 in) SSM-1750 1650 mm (65.0 in) 1750 mm (68.9 in) 1861 mm (73.3 in) 1828 mm (72.0 in) SSM-1900
Defined Area
5
Length
1800 mm (70.9 in) 1900 mm (74.8 in) 2011 mm (79.2 in) 1978 mm (77.9 in)
Reflective Area Y Mounting 1 Mounting L2
8.2.9 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.
USMB-5
• Retrofit mounting bracket for STI MPT21.
2.3 mm (0.09 in)
• thickness, black zinc-plated, chromate dip finish.
• Mounting hardware included: 1 kit required per emitter
USMB-6
• Universal mounting bracket kit.
2.3 mm (0.09 in)
• thickness, black zinc-plated, chromate dip finish.
• Mounting hardware included: 1 kit required per emitter or receiver.
or receiver.
5
Stainless steel reflective surface models are available by adding model number suffix “-S” (for example, SSM-375-S); range reduction for these models is approximately 30% per mirror. See datasheet p/n 67200.
EZ-SCREEN® Type 2 Light Screen
EZA-MBK-2
Adapter bracket for SSM series mirror and MSA series stands
USMB-8
• Mounting plate for 90° sensor direction.
•
Low profile.
• Black anodized aluminum.
• Uses two M4 screws (user supplied) for through-hole mounting.
• 1 kit required per emitter or receiver.
EZ-SCREEN® Type 2 Light Screen
8.2.10 Alignment Aids
Model Description
LAT-1-LP
LPA-LAT-2 Replacement adaptor (clip) hardware for EZ-SCREEN Type 2 models LPA-LAT-1 Clip-on retroreflective LAT target BRT-THG-2-100 2 in retroreflective tape, 100 ft
BT-1 Beam Tracker
Self-contained visible-beam laser tool for aligning any EZ-SCREEN Type 2 emitter/receiver pair. Includes retroreflective target material and mounting clip.
8.2.11 Replacement Parts
Model Number Description MGA-KSO-1 Keyed reset switch MGA-K-1 Replacement key STP-14 30 mm (1.2 in) test piece USMB-1 Standard end bracket kit with hardware (includes 2 end brackets and hardware to mount to MSA Series stands. USCMB-1 USCMB-2 2 brackets, for 1050–1500 mm (41.3–59.1 in) long sensors USCMB-3 3 brackets, for 1650–1800 mm (65.0–70.9 in) long sensors
Center bracket kit (includes bracket(s) and hardware to mount to MSA Series stands
1 bracket, for 600–900 mm (23.6–35.4 in) long sensors
8.2.12 Documentation
Part Number Description
122452 EZ-SCREEN Type 2 System Instruction Manual 122450 Checkout Procedure Card (Daily) 122451 Checkout Procedure Card (Semi-Annual)
EZ-SCREEN® Type 2 Light Screen
9 Standards and Regulations
The list of standards below is included as a convenience for users of this Banner device. Inclusion of the standards below does not imply that the device complies specifically with any standard, other than those specified in the Specifications section of this manual.
9.1 Applicable U.S. Standards
ANSI B11.0 Safety of Machinery, General Requirements, and Risk Assessment
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/RIA R15.06 Safety Requirements for Industrial Robots and Robot
Systems ANSI NFPA 79 Electrical Standard for Industrial Machinery ANSI/PMMI B155.1 Package Machinery and Packaging-Related
Converting Machinery — Safety Requirements
9.2 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 OSHA 29 CFR 1910.217 (Guarding of) Mechanical Power Presses
(lockout/tagout)
9.3 International/European Standards
ISO 12100 Safety of Machinery – General Principles for Design — Risk Assessment and Risk Reduction
ISO 13857 Safety Distances . . . Upper and Lower Limbs ISO 13850 (EN 418) Emergency Stop Devices, Functional Aspects –
Principles for Design ISO 13851 (EN 574) Two-Hand Control Devices – Functional Aspects –
Principles for Design IEC 62061 Functional Safety of Safety-Related Electrical, Electronic and
Programmable Control Systems ISO 13849-1 (EN 954-1) Safety-Related Parts of Control Systems ISO 13855 (EN 999) The Positioning of Protective Equipment in Respect to
Approach Speeds of Parts of the Human Body
9.4 Contact Us
Corporate Headquarters
Address:
Banner Engineering Corporate 9714 Tenth Avenue North Minneapolis, Minnesota 55441, USA
ISO 14119 (EN 1088) Interlocking Devices Associated with Guards – Principles for Design and Selection
IEC 60204-1 Electrical Equipment of Machines Part 1: General Requirements
IEC 61496 Electro-sensitive Protection Equipment IEC 60529 Degrees of Protection Provided by Enclosures IEC 60947-1 Low Voltage Switchgear – General Rules IEC 60947-5-1 Low Voltage Switchgear – Electromechanical Control Circuit
Devices IEC 60947-5-5 Low Voltage Switchgear – Electrical Emergency Stop Device
with Mechanical Latching Function IEC 61508 Functional Safety of Electrical/Electronic/Programmable
Electronic Safety-Related Systems
Europe
Address:
Banner Engineering EMEA Park Lane Culliganlaan 2F Diegem B-1831, Belgium
Turkey
Address:
Banner Engineering Turkey Barbaros Mah. Uphill Court Towers A Blok D:49 34746 Batı Ataşehir Istanbul Türkiye
India
Address:
Banner Engineering India Pune Head Quarters Office No. 1001, 10th Floor Sai Capital, Opp. ICC Senapati Bapat Road Pune 411016, India
Mexico
Address:
Banner Engineering de Mexico Monterrey Head Office Edificio VAO Av. David Alfaro Siqueiros No.103 Col. Valle Oriente C.P.66269 San Pedro Garza Garcia, Nuevo Leon, Mexico
Brazil
Address:
Banner do Brasil Rua Barão de Teffé nº 1000, sala 54 Campos Elíseos, Jundiaí - SP, CEP.: 13208-761, Brasil
EZ-SCREEN® Type 2 Light Screen
China
Address:
Banner Engineering Shanghai Rep Office Xinlian Scientific Research Building Level 12, Building 2 1535 Hongmei Road, Shanghai 200233, China
Japan
Address:
Banner Engineering Japan Cent-Urban Building 305 3-23-15 Nishi-Nakajima Yodogawa-Ku Osaka 532-0011, Japan
Taiwan
Address:
Banner Engineering Taiwan 8F-2, No. 308 Section 1, Neihu Road Taipei 114, Taiwan
South Korea
Address:
Banner Engineering Korea 8th Fl, CM Bldg, 32-7, Songpa-Dong Songpa-Gu Seoul 138-849, South Korea
EZ-SCREEN® Type 2 Light Screen
10 Glossary
The following terms are used in this manual. Where possible, definitions are from the U.S. and international product performance standards that govern the design of the Banner device. For more definitions, visit Banner Website.
A
ANSI (American National Standards Institute)
Acronym for the American National Standards Institute, an association of industry representatives that develops technical standards (including safety standards). These standards comprise a consensus from a variety of industries on good practice and design. ANSI standards relevant to application of safety products include the ANSI B11 Series, and ANSI/RIA R15.06. See
Standards and Regulations on page 56.
CE
Abbreviation for "Conformité Européenne" (French translation of "European Conformity"). The CE mark on a product or machine establishes its compliance with all relevant European Union (EU) Directives and the associated safety standards.
Change of State (COS)
The change of an input signal when it switches from Run-to-Stop or Stop-to-Run state. Dual-channel input signals, have two possible configurable COS settings describe the signal disparity limits that can exist between channels before a fault condition is registered: simultaneous and concurrent. If simultaneity is a requirement or a concern for the application, the user has to ensure that he made the right selection during configuration.
Closed-Open Debounce Time
The time it takes to bridge a jittery input signal or bouncing of the input contacts to prevent nuisance tripping of the Controller. Adjustable from 6 ms to 100 ms. The default value is 6 ms (50 ms for mute sensors). A longer closed-open debounce time will also affect and increase the response time of the system and/or the machine response time.
Code Validation
The configuration code file inspection process automatically performed by the Controller to verify that the configuration code has not been corrupted or altered in any way.
Commissioning
The process of operationally checking a Safety Controller installation on a working machine, in order to verify that the control system is working properly.
Automatic Reset
The safety input device control operation setting where the assigned safety output will automatically turn on when all of its associated input devices are in the Run state. No manual reset operation is required for the safety output to turn on when controlled only by safety input devices configured for Automatic Reset. When Automatic Reset is selected, the input device may be said to be configured to run in Trip mode.
C
Complementary Contacts
Two sets of contacts which are always in opposite states.
Concurrent
The setting that permits an indefinite signal disparity between channels, without going into a fault condition. A fault condition is created if the Stop signal changes back to a Run signal before its allied signal changes to the Stop state. Both signals must change from the STOP state to the RUN state before the dual-channel device is considered to be in the RUN state.
Configurable
Describes a control device that has pre-defined and pre-tested operational parameters that can be selected or enabled, in order to accommodate a variety of control application requirements.
Configuration
A selected set of pre-defined and pre-tested input and output device properties and logic relationships that define the operating algorithm that the Safety Controller uses to control hazardous machine motion.
Confirmation
The two-step process where a new or modified configuration is sent to a Controller for code validation, and a copy of the validated code is sent back from the Controller to the PCI for manual parameter (I/O and System settings) verification.
Defined Area
The "screen of light" generated by a safety light screen system, defined by the height and the safety distance (minimum distance) of the emitter and receiver. When the defined area is interrupted by an opaque object of a specified cross section, a Trip or Latch condition results.
Designated Person
A person or persons identified and designated in writing, by the employer, as being appropriately trained and qualified to perform a specified checkout procedure.
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.
Enable a Mute Time Limit
As soon as a mute sensor is mapped to a safety input device, a default time limit of 30s will show up in the properties window. This time limit can be disabled by unchecking the ‘Enable Time Limit’ box. This extends the time for the mutable safety device to be muted to infinite.
D
Diverse-Redundancy
The practice of using components, circuitry or operation of different designs, architectures or functions to achieve redundancy and to reduce the possibility of common mode failures.
Dual-Channel
Having redundant signal lines for each safety input or safety output.
E
External Device Monitoring (EDM)
A means by which a safety device (such as a safety light screen) actively monitors the state (or status) of external devices that may be controlled by the safety device. A lockout of the safety device will result if an unsafe state is detected in the external device. External device(s) may include, but are not limited to: MPCEs, captive contact relays/contactors, and safety modules.
Failure to Danger
A failure which delays or prevents a machine safety system from arresting dangerous machine motion, thereby increasing risk to personnel.
Final Switching Device (FSD)
The component of the machine’s safety-related control system that interrupts the circuit to the machine primary control element (MPCE) when the output signal switching device (OSSD) goes to the OFF-state.
Hard (Fixed) 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 the openings is determined by the applicable standard, such as Table O-10 of OSHA 29CFR1910.217, also called a "fixed barrier guard."
Harm
Physical injury or damage to the health of people, which may result through direct interaction with the machine or through indirect means, as a result of damage to property or to the environment.
IEC
International Electrotechnical Commission
EZ-SCREEN® Type 2 Light Screen
F
FMEA (Failure Mode and Effects Analysis)
A testing procedure by which potential failure modes in a system are analyzed to determine their results or effects on the system. Component failure modes that produce either no effect or a Lockout condition are permitted; failures which cause an unsafe condition (a failure to danger) are not. Banner safety products are extensively FMEA tested.
H
Hazard Point
The closest reachable point of the hazardous area.
Hazardous Area
An area that poses an immediate or impending physical hazard.
I
Internal Lockout
A Lockout condition that is due to an internal safety system problem. Generally, indicated by the red Status indicator LED (only) flashing. Requires the attention of a Qualified Person.
Key Reset (Manual Reset)
A key-operated switch used to reset a safety light screen system to Run mode following a Lockout condition, or to enable machine operation following a Latch condition. Also refers to the act of using the switch.
Latch Condition
The response of the safety light screen safety outputs (for example, OSSDs) when an object equal to or greater than the diameter of the specified test piece enters the defined area. In a Latch condition, safety outputs simultaneously de-energize and open their contacts. The contacts are held (latched) open until the object is removed from the defined area and a manual reset is performed. A latching output is used most often in perimeter guarding applications. (See Trip Condition.)
Machine Primary Control Element (MPCE)
An electrically powered element, external to the safety system, which directly controls the machine’s normal operating motion in such a way that the element is last (in time) to operate when machine motion is either initiated or arrested.
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.
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.
K
L
Lockout Condition
A safety light screen condition that is automatically attained in response to certain failure signals (an internal lockout). When a Lockout condition occurs, the safety light screen’s safety outputs turn Off; the failure must be corrected and a manual reset is required to return the system to Run mode.
M
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.
Muting
The automatic suspension of the safeguarding function of a safety device during a non-hazardous portion of the machine cycle.
O
Open-Closed Debounce Time
The time it takes to bridge a jittery input signal or bouncing of the input contacts to prevent an unwanted start of the machine. Adjustable from 10 ms to 500 ms. The default value is 50 ms. A longer open-closed debounce time will also affect the recovery time of the Controller.
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.
EZ-SCREEN® Type 2 Light Screen
Pass-Through Hazard
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.
PELV
Protected extra-low voltage power supply, for circuits with earth ground. Per IEC 61140: "A PELV system is an electrical system in which the voltage cannot exceed ELV (25 V ac rms or 60 V ripple free dc) under normal conditions, and under single-fault conditions, except earth faults in other circuits."
Qualified Person
A person who, by possession of a recognized degree or certificate of professional training, or who, by extensive knowledge, training and experience, has successfully demonstrated the ability to solve problems relating to the subject matter and work.
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 (for example, OSSDs) and causing a Trip or Latch condition. Sometimes called "Floating Blanking."
P
Point of Operation
The location of a machine where material or a workpiece is positioned and a machine function is performed upon it.
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.
Q
R
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
Run Signal
The input signal monitored by the Controller that, when detected, causes one or more safety outputs to turn On if their other associated input signals are also in the Run state. In this manual, either the input device or the device signal is said to be in the Run state
Safety-Rated Device
A device that is designed to an applicable safety standard and when properly applied, reduces the level of risk.
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.
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.
Simultaneous
The setting that permits a signal disparity between channels within the input device for a limited time, without going into a fault condition. If a signal disparity exists for more than 3 seconds, then a fault condition occurs.
Single-Channel
Having only one signal line for a safety input or safety output.
S
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.
Start Up Test
For certain safety devices, like safety light screens or safety gates, it can be an advantage to test the device on power up at least one time for proper function. If ‘Start up Test’ has been selected for a safety light screen and the light screen is clear at power up, it would be necessary to cycle the light screen one time (from On to Off and back to On), even if the Controller has been configured for auto power up.
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.
Stop Signal
The input signal monitored by the Controller that, when detected, causes one or more safety outputs to turn Off. In this manual, either the input device or device signal is said to be in the Stop state.
System Reset
A configurable reset of one or more safety outputs to turn On after Controller power-up, when set for manual power-up, or lockout (fault detection) situations.
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 (for example, 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.)
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.
EZ-SCREEN® Type 2 Light Screen
T
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.
U
Index
A
applications
inappropriate 7 suitable 7
C
25
checkout procedures control reliability 7 corsets
routing 23
D
DIP Switches 8, 9
E
Emitter
Power/Fault indicator 38
External Device Monitoring (EDM)
8, 9
F
Final Switching Device (FSD)
I
inappropriate applications 7
, 26, 28
5
indicator
Emitter Power/Fault 38 initial checkout 25, 26, 28 initial checkout procedure 25, 26,
initial power-up 26
28
L
LEDs
emitter 37
receiver light-emitting diodes 37
37
See also LEDs
M
Machine Primary Control Elements Minimum Distance 11, 12, 14
Minimum Distance, calculating 12, Mutable Safety Stop Interface
(MPCEs) 5
14 (MSSI) 6
O
optical crosstalk 18 Output Signal Switching Device
(OSSD) 5
P
14
pass-through hazard
R
reset switch
location 15
routing corsets 23
S
Safety (Separation) Distance, Safety Distance
sensor swapability 9 Standards and Regulations 56 status indicators 9 suitable applications 7 system response time 12
calculating 12, 14
11, 12, 14
T
Trip or Latch Output 8, 9 trip/latch output 8
Loading...
Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use