Ihm Lauer Hlm8619
Ihm Lauer Hlm8619
Instruction Manual
Features
• An optoelectronic safeguarding device
• Standard and cascadeable models available
• Compact package for smaller production machines,
robust for large power presses
• Creates a screen of synchronized, modulated
infrared sensing beams. Choose from two
resolutions in 12 sizes, in 150 mm (6") increments:
– 14 mm (0.55") resolution models with defined
areas from 150 mm to 1.8 m (6" to 71")
– 30 mm (1.18") resolution models with defined
areas from 150 mm to 1.8 m (6" to 71")
• Optional remote Test input terminals for simulating
a “blocked” condition (available on some emitter
models)
• Easily configured Reduced Resolution (Floating
Blanking)
• Three-digit display provides diagnostic information
and indicates number of beams blocked
• Zone indicators identify blocked beams
• FMEA tested to ensure control reliability
• Receiver LEDs provide system status and emitter/
receiver alignment indications
• Highly immune to EMI, RFI, ambient light, weld
flash, and strobe light C R US
• Two-piece design with External Device Monitoring
• Vibration-tolerant, factory burned-in emitter and
receiver circuitry for toughness and dependability
Section Contents
• Up to four pairs of emitters and receivers of
different lengths can be cascaded (SLSC.. models) Section 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1
Section 2 System Components and Specifications . . . . . . . . . . . Page 6
Section 3 Installation and Alignment . . . . . . . . . . . . . . . . . . . . . Page 17
Section 4 System Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 36
Section 5 Troubleshooting and Maintenance . . . . . . . . . . . . . . . Page 41
Section 6 Checkout Procedures . . . . . . . . . . . . . . . . . . . . . . . . . Page 46
9714 10th Avenue North • Minneapolis, MN 55441 Section 7 Cascadeable EZ-SCREEN . . . . . . . . . . . . . . . . . . . . . . Page 48
Phone: 763.544.3164 • http://www.bannerengineering.com
Email: sensors@bannerengineering.com
1. System Overview
1.1 Introduction Electrical connections are made through M12 (or Euro-
style) quick-disconnects. Some emitter models have a 5-pin
The Banner EZ-SCREEN System provides a redundant,
connector for power and the Test function. Other emitters
microprocessor-controlled, opposed-mode optoelectronic
and all receivers have an 8-pin connector for power, ground,
“curtain of light,” or “safety light screen.” It is generally used
inputs and outputs.
as a point-of-operation safeguarding device, and is suited to
safeguard a variety of machinery. Functions such as Trip/Latch select, Display Invert, Cascading,
Fixed Blanking, Reduced Resolution (Floating Blanking), Scan
EZ-SCREEN Systems are extensively FMEA (Failure Mode
Code select, and External Device Monitoring are described in
and Effects Analysis) tested to establish an extremely high
Section 1.4. All models require a supply voltage of +24V dc
degree of confidence that when properly installed, no system
±15%. See Section 2.3 for interfacing solutions.
component will (even if it should fail) cause a failure to
danger. Both emitter and receiver feature 7-segment Diagnostic
Displays and individual LEDs to provide continuous indication
In typical operation, if any part of an operator’s body (or any
of the System’s operating status, configuration and error
opaque object) of more than a pre-determined cross section
conditions. See Section 1.4.7 for more information.
is detected, the OSSD solid-state safety outputs will turn off.
These safety outputs are connected to the guarded machine’s
Final Switching Devices (FSDs) that control the primary
control elements (MPCEs) which immediately stop the motion
Receiver
of the guarded machine.
Specified Test Piece
The OSSD (Output Signal Switching Device) safety outputs
(2 diameters supplied
are capable of performing a “handshake” communication with with receiver)
the Muteable Safety Stop Interface (MSSI) or Universal Safety Emitter
Stop Interface (USSI) found on other Banner Engineering
safety products. The handshake protocol is satisfied by any
Banner Engineering Safety Category 4 (per ISO 13849-1/
EN954-1) device with OSSD outputs or MSSI/USSI inputs.
This handshake verifies that the interface between the two
devices is capable of detecting certain unsafe failures that
may occur (such as a short circuit to a secondary source of
power or to the other channel, high input resistance or loss of
signal ground).
Banner EZ-SCREEN Systems can be described as “two-piece”
or “two-box” systems – comprising an emitter and a receiver,
but no external controller. The External Device Monitoring Status indicators
and configuration
(EDM) function ensures the fault detection capability required switches behind Defined
by U.S. Control Reliability and ISO13849-1 Categories 3 and clear access panel Area
4 without a third box, a controller or a “smart” (i.e., self-
checking) safety module required of systems without EDM. QD Fitting
Emitters have a row of synchronized modulated infrared
(invisible) light-emitting diodes (LEDs) in a compact
rectangular metal housing. Receivers have a corresponding
row of synchronized photodetectors. The dimensions of the
Quick-disconnect
light screen created by the emitter and receiver are called Cables
the “defined area”; its width and height are determined by
the length of the sensor pair and the distance between them.
Figure 1-1. Banner EZ-SCREEN High-Resolution System: emitter,
The maximum range is dependent on the resolution, which
receiver, and two interconnecting cables
decreases if corner mirrors are used. Emitter and receiver
pairs with 14 mm (0.55") resolution have a maximum range
of 6 m (20'), and pairs with 30 mm (1.18") resolution have a
maximum range of 18 m (60').
1.4.6 Reduced Resolution (Floating Blanking) hazard point (separation distance, see Section 3.1.1). The
green status indicator on the receiver flashes when Reduced
Reduced Resolution increases the minimum diameter of an Resolution is enabled. The ignored object size and resultant
object that the light screen can reliably detect anywhere within Reduced Resolution are listed in Section 3.4.2.
its defined area. Reduced Resolution is generally used to
allow one or more objects (usually workpiece materials) to
move through the defined area, at any point, without tripping 1.4.7 Status Indicators
the OSSD safety outputs. Status indicators on both the emitter and receiver are clearly
Selecting two-beam Reduced Resolution will reduce the visible on each sensor’s front panel.
overall minimum object sensitivity, which allows multiple • Emitter:
objects to move through the defined area (see Section 3.4.2). Bi-color red/green Status indicator – shows whether
The effect is that every two consecutive beams (except for the power is applied, and whether the emitter is in RUN
sync beam) can be blocked, but not cause the OSSDs to turn mode, TEST mode, or Lockout condition.
OFF. This is also called “multiple-point Floating Blanking.” 1-Digit Diagnostic Display – indicates specific error or
Resolution directly affects the minimum allowable distance configuration conditions.
between the defined area of a light screen and the nearest
• Receiver:
Bi-color red/green Zone indicators – show status of a
Beams of group of beams:
Defined Area - aligned and clear, or
- blocked and/or misaligned.
Yellow Reset indicator – shows System status:
- RUN mode or
- waiting for a reset.
Bi-color red/green Status indicator – shows System
status:
- Reduced Resolution enabled,
- outputs are ON or OFF, or
- the System is in Lockout condition.
3-Digit Diagnostic Display – indicates specific error,
configuration conditions, or total number of blocked
Workpiece
Press Break beams.
Die See Sections 4.4 and 5.1 for more information about specific
indicator and Diagnostic Display code meanings.
Figure 1-2. Reduced Resolution
Receiver Emitter
3-digit
Diagnostic 1-digit
Display Diagnostic
Zone Indicators Display
(each shows status
of approx. 1/8 of the
total beams)
Yellow Reset
Indicator
Status
Status Indicator Indicator
(Red/Green) (Red/Green)
Zone 1 Indicator
(indicates beam
synchronization status)
2.2 Cables
Machine interface cables provide power to the first emitter/receiver pair. Sensor interface
cables provide power to subsequent emitters and receivers in the cascade.
Single-Ended (Machine Interface) Cables (one cable for each emitter and receiver)
Overmold and cables are PVC-jacketed. Cables are unterminated on one end to interface
with guarded machine.
Connector
Model Banner Cable European M12
Length Wire Termination (female face
Number Pinout/Color Code Specification*
view)
For 8-Pin Emitters and Receivers** Pin Color Function Pin Color Function
1 Bn +24V dc 1 Wh +24V dc
2 Or/Bk EDM #2 2 BN EDM #2 1 2
QDE-815D 5 m (15') 8-pin Euro-
3 Or EDM #1 3 Gn EDM #1 8
QDE-825D 8 m (25') style female
22 4 Wh OSSD #2 4 Ye OSSD #2 7 3
QDE-850D 15 m (50') connector on
gauge 5 Bk OSSD #1 5 Gy OSSD #1
QDE-875D 23 m (75') one end; cut
6 Bu 0V dc 6 Pk 0V dc 6 4
QDE-8100D 30 m (100') to length 5
7 Gn/Ye Gnd/Chassis 7 Bu Gnd/Chassis
8 Vi Reset 8 Rd Reset
For 5-Pin Emitters and Receivers*** Pin Color Function Pin Color Function
QDE-515D 5 m (15') 5-pin Euro- 1 Bn +24V dc 1 Bn +24V dc
QDE-525D 8 m (25') style female 2 Wh Test #2 2 Wh Test #2 1 5 2
22
QDE-550D 15 m (50') connector on 3 Bu 0V dc 3 Bu 0V dc
gauge
QDE-575D 23 m (75') one end; cut 4 Bk Test #1 4 Bk Test #1 4 3
QDE-5100D 30 m (100') to length 5 Gn/Ye Gnd/Chassis 5 Shield Gnd/Chassis
*The European M12 Specification pin assignment and color codes are listed as a customer
courtesy. The user must verify suitability of these cables for each application.
**8-pin Systems require two 8-pin QD cables. Only pins 1, 6, and 7 are connected on
8-pin emitters (see Figure 3-16).
***5-pin EZ-SCREEN emitter, model numbers SLSE..-..Q5 (see Table 2.1) with Test function
(see Figure 3-16). One 5-pin and one 8-pin QD cable required for complete system.
Splitter Cordsets
Model CSB splitter cordsets allow easy interconnection between an EZ-SCREEN 8-pin receiver and
its 8-pin emitter, providing a single “homerun” cable for the optional “swapable” hookup (see Figure
3-16). The model DEE2R-.. double-ended cables described on page 8 may be used to extend the
lengths of the QD trunk, branch #1, or branch #2. (Branch #1 and branch #2 cable sections are
300 mm/1' long.) The model QDE-8..D single-ended cables may be used to extend the QD trunk for
cut-to-length applications.
1 1
Pin #4 (OSSD#2)
3 3
8 8
2 2
1 = BROWN 1 = BROWN
2 = ORANGE/BLACK 2 = ORANGE/BLACK
3 = ORANGE 3 = ORANGE
4 = WHITE 4 = WHITE
5 = BLACK 5 = BLACK
6 = BLUE 6 = BLUE
7 = GREEN/YELLOW 7 = GREEN/YELLOW
8 = VIOLET 8 = VIOLET
Pin #5 (OSSD#1)
R R
2.3 Accessories
Additional interfacing solutions and accessories continue to be added; refer to
www.bannerengineering.com for a current list.
Interface Modules
Provide forced-guided, mechanically-linked relay (safety) outputs for the EZ-SCREEN System.
See Banner data sheet p/n 62822, and Figures 3-19 and 3-20 for more information.
Contactors
If used, two contactors per EZ-SCREEN System are required. (See Figure 3-18.)
10 amp positive-guided contactor 3 N/O, 1 NC 11-BG00-31-D-024
16 amp positive-guided contactor 3 N/O, 1 NC 11-BF16C01-024
Muting Module
Provides muting capability for the EZ-SCREEN System. See Banner manual p/n 63517 for further
information and additional cabling options.
Muting module (2 OSSD outputs, 2 or 4 muting inputs, USSI, override input) MM-TA-12B
Cable to interface EZ-SCREEN Receiver with MM-TA-12B Muting 2.5 m (8') DESE4-508D
Module – 22 Ga, 8-pin Euro-style (M12) female connector to 5 m (15') DESE4-515D
7-pin Mini-style male connector; double-ended 8 m (25') DESE4-525D
Lens Shields
NOTE: The total range decreases by approximately 10% per shield.
Tubular Enclosures
EZA-MBK-2 adapter bracket is required for use with MSA Series stand, see page 12.
*Available without a base by adding the suffix “NB” to model number, e.g., MSA-S42-1NB.
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mounting to engineered/slotted 20 mm
Unistrut™).
• Retrofit for Banner MS/US/MG. 39.2 mm
(1.54")
Alignment Aids
Model Part # Description
Self-contained visible-beam laser tool for aligning any
LAT-1-SS 71445 EZ-SCREEN 14 mm and 30 mm emitter/receiver pair.
Includes retroreflective target material and mounting clip.
EZA-LAT-SS 73318 Replacement adaptor (clip) hardware for SLS.. models
EZA-LAT-2 71446 Clip-on retroreflective LAT target
BRT-THG-2-100 26620 2" retroreflective tape, 100'
BT-1 26809 Beam Tracker
2.5 Literature
The following documentation is supplied with each EZ-SCREEN receiver. Additional
copies are available at no charge.
Description Part #
EZ-SCREEN System Instruction Manual 112852
Checkout Procedure Card (Daily) – Stand-Alone Systems 113361
Checkout Procedure Card (Daily) – Cascaded Systems 118173
Checkout Procedure Card (Semi-Annual) 113362
Diagnostic Display Label 114189
2.6 Specifications
Effective Aperture Angle Meets Type 4 requirements per IEC 61496-2, Section 5.2.9
(EAA) ± 2.5° @ 3 m
Enclosure Size: See Figure 2-2
Materials: Extruded aluminum housing with yellow polyester powder finish and well-sealed,
rugged die-cast zinc end caps, acrylic lens cover, polycarbonate access cover
Rating: IEC IP65
Operating Conditions Temperature: 0° to +55° C (+32° to 131°F)
Max. Relative Humidity: 95% maximum relative humidity (non-condensing)
Shock and Vibration EZ-SCREEN systems have passed vibration and shock tests according to IEC 61496-1. This
includes vibration (10 cycles) of 10-55 Hz at 0.35 mm (0.014") single amplitude (0.70 mm
peak-to-peak) and shock of 10 g for 16 milliseconds (6,000 cycles).
Certifications
IEC61496-1, -2: Type 4 NIPF(7)
ISO13849-1(EN954-1): Cat4
C R US UL1998, UL61496
*The external voltage supply must be cabable of buffering brief mains interruptions of 20 ms, as specified in IEC/EN 60204-1.
4 x 5.8 mm (0.23")
wide slots 20 mm
4 x R 19.4 mm
Ø 21.5 mm (0.79")
(0.76")
(0.85")
55 mm
Ø 33 mm
(2.17")
4 x 45 (1.30")
63.2 mm Ø 60 mm
(2.49")
4.2 mm 20 mm 20 mm
38.2 mm
(1.50") (0.17") (0.79") (0.79") 17.5 mm
50 mm (0.69")
(1.97")
25 mm
50 mm
(0.98")
(1.96")
55.6 mm
4.2 mm
(2.19")
(0.17")
2 x 5 mm 2 x 7 mm
(0.20") (0.28")
2 x R 5 mm
(0.20")
10 mm
9.5 mm
(0.39")
(0.37") Ø 8.3 mm
2 x 15 mm (0.33")
(0.59")
20 mm
(0.79") 36 mm
(1.42")
Ø 7 mm
(0.28")
15 mm 20.0 mm
(0.59") (0.79")
36.0 mm
45.2 mm (1.42")
12 mm*
(1.78")
(0.47")
Y
L1 L3
L2
56.0 mm
(2.20")
4.2 mm
(0.17")
65 mm R13 mm (0.5")
(2.6") minimum bend
*For SLS..-150 models, this distance is 52 mm (2")
Figure 2-2. Emitter and receiver mounting dimensions and location of defined area
!
machine capabilities, or other application considerations. WARNING . . . Reset Switch Location
All reset switches must be:
One solution is to ensure that personnel are continually
sensed while within the hazardous area. This can be
• Outside the guarded area,
accomplished by using supplemental safeguarding, such as
described by the ANSI B11 series of safety requirements or • Located to allow the switch operator full, unobstructed view
other appropriate standards (see Section 3.1.4). of the entire guarded area while the reset is performed,
An alternate method is to ensure that once the safeguarding • Out of reach from within the guarded area, and
device is tripped it will latch, and will require a deliberate
manual action to reset. This method of safeguarding relies • Protected against unauthorized or inadvertent operation
upon the location of the reset switch as well as safe work (such as through the use of rings or guards).
practices and procedures to prevent an unexpected start or If any areas within the guarded area are not visible from the
restart of the guarded machine. reset switch, additional safeguarding must be provided,
as described by the ANSI B11 series or other appropriate
standards. Failure to do so could result in serious injury or
WARNING . . . Use of EZ-SCREEN death.
Receiver
Receiver
Emitter
Emitter
Emitter
WARNING . . . Proper Orientation of
! System Emitters and Receivers
EZ-SCREEN System emitters and receivers must
a) Both cable ends down b) Both cable ends up
Receiver
be installed with their corresponding cabled ends
pointing in the same direction (e.g., both cabled ends “up”).
Failure to orient them properly will impair the performance
of the EZ-SCREEN System and will result in incomplete
guarding, and could result in serious bodily injury or death.
Emitter
c) Oriented parallel to floor
with both cable ends pointing in
the same direction
A
Emitter Receiver
d
45˚ < A < 120˚
Mirror
Operating Range Receiver
(R)
Emitter
Whenever two or more EZ-SCREEN emitter and receiver pairs Scan Code 1 a) Two systems in a
are adjacent to one another, optical crosstalk may potentially horizontal plane
Receiver
take place between systems. To minimize optical crosstalk, Receiver
alternate the positions of emitters and receivers, (see
Figure 3-8a), or alternate Scan Codes. Scan Code 1
When three or more systems are installed in the same plane Emitter
Emitter
!
WARNING . . . Scan Code c) Two systems at right angles
In situations where multiple systems are Receiver
Emitter
Scan Code 1
mounted closely together, or where a secondary
emitter is in view (within ±5°), within range of an Scan Code 2 Receiver
screen.
Scan Code 2
This situation will be discovered by performing the trip test
(see Section 3.4.3). Receiver
Receiver 2
Connection of multiple OSSD safety outputs to a single
device can result in serious bodily injury or death, and is
prohibited. Emitter 2
Scan Code 1
Emitter 3
Scan Code 2
Receiver 3
d) Multiple systems
Scan Code 2
Bracket
Clamp
Side-Mounted
(two center brackets may
be substituted)
3.2 Mechanical Mounting Procedure Mount the emitter and receiver in their brackets; position their
windows directly facing each other. Measure from a reference
Once the mechanical layout considerations of Section 3.1 are plane (e.g., a level building floor) to the same point(s) on
addressed, mount the sensors and route the cables. the emitter and receiver to verify their mechanical alignment.
Use a carpenter’s level, a plumb bob, or the optional LAT-1
3.2.1 Sensor Mounting Laser Alignment Tool (see Section 2.4) or check the diagonal
distances between the sensors, to achieve mechanical
Emitter/receiver pairs with 14 mm (0.55") resolution may be
alignment. Final alignment procedures are explained in
spaced from 0.1 m to 6 m (4" to 20') apart. Emitter/receiver
Section 3.4.
pairs with 30 mm (1.18") resolution may be spaced from
0.1 m to 18 m (4" to 60') apart. The maximum distance Center mounting brackets must be used with longer sensors,
between an emitter and its receiver is reduced if corner whenever the sensors are subject to shock or vibration. In
mirrors are used (see Section 3.1.7). The supplied brackets such situations, the sensors are designed to be mounted
(when mounted to the sensor end caps) allow ±30° rotation. with up to 900 mm unsupported distance (between brackets).
Sensors 1050 mm and longer are supplied with a center
From a common point of reference (ensuring the minimum
bracket to be used as needed with the standard end-cap
separation distance calculated in Section 3.1.1), make
brackets (see Figure 3-7).
measurements to locate the emitter and receiver in the same
plane with their midpoints directly opposite each other. 1. Attach the center bracket to the mounting surface when
Important: The connector ends of both sensors must point mounting the end-cap brackets.
in the same direction (see Figure 3-5 and warning, Section
2. Attach the clamp to both slots of the housing, using the
3.1.3). Mount the emitter and receiver mounting brackets (see
included M5 screws and T-nuts.
below) using the supplied M6 bolts and Keps nuts, or user-
supplied hardware; see Figure 3-9. 3. After the sensor is mounted to the end-cap brackets, attach
the clamp to the center bracket using the supplied M5
screw.
Verify that:
• The emitter and receiver are directly opposite each other.
• Nothing is interrupting the defined area.
• The defined area (marked on the sensors) is the same
distance from a common reference plane for each sensor.
• The emitter and receiver are in the same plane and are
level/plumb and square to each other (vertical, horizontal,
or inclined at the same angle, and not tilted front-to-back or
side-to-side).
Emitter Receiver A B
level level
level level
X X
Y Z Y Z X X
3.4 Light Screen Initial Checkout receiver cables (see Figures 3-17 to 3-20) and then power
up the EZ-SCREEN System (only).
The initial checkout procedure must be performed by a
Qualified Person (see Section 4.1). It must be performed only Verify that input power is present to both emitter and
after configuring the System and after connecting the emitter receiver. At least one indicator on both emitter and receiver
and receiver per Section 3.3. should be ON and the start-up sequence should cycle.
Configuring the System for Initial Checkout 3. Observe both the emitter and the receiver System Status
Verify that Test input is jumpered (if used) and the System indicators and the receiver Zone indicators to determine
is set to the factory defaults for initial checkout and optical light screen alignment status:
alignment. (Factory defaults are for Trip Output, 2-Channel • A Lockout condition (emitter or receiver) – the System
EDM, Reduced Resolution OFF, and Scan Code 1. See Figure Status indicator single-flashing Red, and the receiver
4-1.) Zone and Reset indicators OFF. Proceed to Section 5 for
The procedure is performed on two occasions: diagnostic information.
• To ensure proper installation when the System is first • Normal operating mode (emitter) – the System Status
installed, and indicator ON Green.
• To ensure proper System function whenever any • TEST mode (5-pin emitters only) – a flashing Green
maintenance or modification is performed on the System System Status indicator (Test input open, see Figure 3-17
or on the machinery being guarded by the System. (See and Section 5.2).
Section 6.1 for a schedule of required checkouts.) • A Latch condition (receiver), all optical beams clear
– the receiver System Status indicator ON Red and the
For the initial checkout, the EZ-SCREEN System must be Reset indicator double-flashing Yellow; Zone indicators
checked without power being available to the guarded ON Green. When the receiver is configured for Latch
machine. Final interface connections to the guarded Output, the outputs are ON only when all beams are clear
machine cannot take place until the light screen system and after a manual reset (see Section 1.4.7). If a reset
has been checked out. This may require lockout/tagout routine can cause a Clear (RUN) condition, optimize
procedures (refer to OSHA1910.147, ANSI Z244-1, or the the alignment as described in step 4. If a Clear (RUN)
appropriate standard for controlling hazardous energy). These condition can not be achieved, see “Blocked condition”
connections will be made after the initial checkout procedure below.
has been successfully completed.
• A Clear (RUN) condition (receiver) – the System Status
Verify that: indicator ON Green (or flashing Green if Reduced
• Power has been removed from (or is not available to) the Resolution is enabled), and the Reset indicator ON
guarded machine, its controls or actuators; and Yellow. All Zone indicators ON Green.
• The machine control circuit or the Interface Module is not To optimize alignment and maximize excess gain,
connected to the OSSD outputs at this time (permanent slightly loosen the sensor mounting screws (x4) and
connections will be made later); and rotate one sensor left and right, noting the positions
• EDM is configured for No Monitoring, per Section 3.3.2. where the Status indicators turn Red (Blocked condition);
repeat with the other sensor (see Figure 3-11). Center
each sensor between those two positions and tighten
3.4.1 Initial Power-Up and Optical Alignment the end cap mounting screws, making sure to maintain
1. Inspect the area near the light screen for reflective the positioning as the screws are tightened. The sensor
surfaces, including work pieces and the guarded machine. lenses should directly face each other. Proceed to System
Reflective surfaces may cause light beams to reflect around Configuration (Section 3.4.2) once optimum optical
a person in the light screen, preventing the person from alignment is verified.
being detected and not stopping the machine motion. See • A Blocked condition (receiver) is indicated by the System
Section 3.1.6. Status indicator ON Red, the yellow Reset indicator ON,
and one or more Zone indicator(s) ON Red, identifying
Eliminate the reflective surfaces as possible by relocating
the location of the blocked beams, and the number of
them, painting, masking or roughening them. Remaining
blocked beams will be displayed. Proceed to step #4.
problem reflections will become apparent during step 5.
NOTE: If beam 1 is blocked, Zone indicator 1 will be Red
2. Verify that power is removed from the EZ-SCREEN System
and all others will be OFF. Beam 1 provides the
and from the guarded machine and that the OSSD safety
synchronization signal.
outputs are not connected. Remove all obstructions from
the light screen. NOTE: If the Test input is open, the 3-digit Diagnostic
Display will indicate the total number of beams in
Leaving power to the guarded machine OFF, make power
the system (minus one) and all Zone indicators
and earth ground connections on both the emitter and
will be Red.
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
26 P/N 112852 rev. C
EZ-SCREEN
Instruction Manual Installation and Alignment
4. Optical Alignment C1
a) or
CAUTION: Ensure that no individuals are exposed to any Straight Edge
C2
hazard if the EZ-SCREEN receiver turns ON
All
the OSSD outputs when the System becomes OFF
aligned.
Straight Edge
Verify Sensor Mounting per section 3.2. OFF
#
NOTE: At power-up, all indicators are tested (flash), then Beams
the Scan Code is displayed. Blocked
c)
b. If Channel #1 beam is not aligned, the Status and ON Red
Zone 1 indicators are Red and the Diagnostic Display or
Green
indicates “CH1”. Zone indicators 2-8 will be OFF.
c. If the Green Status and Yellow Reset indicators are ON, Yellow Red
e. If, at any time, the Red Status indicator begins to flash • The middle of the defined area and the center point of
steadily, the System has entered a Lockout condition. the mirrors are approximately the same distance from a
See Section 5.1.1 for further information. common reference point, such as the same height above a
level floor. Ensure that there are equal amounts of mirror
Optical Alignment Procedure with Mirrors surface above and below the defined area such that the
EZ-SCREEN sensors may be used with one or more corner optical beams are not passing below or above the mirror.
mirrors for guarding more than one side of an area. The
MSM... and SSM-... rear-surface glass mirrors are rated at During any adjustments, allow only one individual to adjust
85% efficiency. Thus, excess gain and sensing range are any one item at any one time.
reduced when using mirrors; see Section 3.1.7.
NOTE: A LAT-1-SS Laser Alignment Tool is very helpful by
providing a visible red dot along the optical axis. See
Figure 3-13 and Banner Safety Applications Note
SA104 (P/N 57477) for further information.
Component #2
Reduced Maximum Size
(Mirror) Resulting
Model Resolution of Undetected
Resolution
Component #3
Setting Objects
(Mirror) 14 mm OFF (Not applicable) 14 mm (0.55")
Resolution ON (2-beam) 8.5 mm (0.34") 30 mm (1.18")
30 mm OFF (Not applicable) 30 mm (1.18")
Resolution ON (2-beam) 17 mm (0.67") 60 mm (2.36")
Figure 3-13. Optical alignment using the LAT-1 4. If power is OFF: Apply power
Lockout condition: Perform a valid reset sequence (close
Q
the reset switch for 0.25 to 2 seconds, then reopen the
3.4.2 Reduced Resolution (Floating Blanking) switch).
Reduced Resolution allows objects of a certain maximum size 5. Fixed Blanking configuration indicated by:
P
to interrupt the defined area without causing a Trip condition • Display alternates between “PFA” and the number of
(i.e., the OSSDs turn OFF). Use Reduced Resolution only blocked beams (“0” if all beams are clear).
when necessary. In Reduced Resolution applications, the (PFA = Program Fixed Blanking Active)
separation distance always increases due to the larger depth • Zone indicators active
penetration factor (Dpf). In either case see Section 3.1.1 to • Yellow Reset indicator OFF
determine separation distance. • Status indicator ON Red
With 2-beam Reduced Resolution enabled, any two consecutive 6. Position object(s) to be blanked.
beams, (except for the sync beam), can be blocked without
causing a stop condition. Thus, multiple “holes” are created in 7. When beams are blocked, the 7-segment display
which 14 mm systems will “see” a 30 mm object and ignore an alternates between “PFA” and the number of blocked
8.5 mm object. Similarily, 30 mm systems will “see” a 60 mm beams. The zone indicators remain active and denote the
object and ignore a 17 mm object. See Figure 4-1 for DIP-switch location of blocked beams.
configuration.
3.5.3 Machine Primary Control Elements and EDM Inputs Receiver pins 2 and 3 of the receiver terminal block provide
connection for the external device monitoring input. External
Each of the two Machine Primary Control Elements (MPCE1 Device Monitoring (EDM) must be wired in one of three
and MPCE2) must be capable of immediately stopping the configurations and must agree with the DIP switch EDM
dangerous machine motion, irrespective of the state of the settings on the receiver (see Section 4.2). One- and Two-
other. These two channels of machine control need not be Channel EDM are used when the EZ-SCREEN OSSD outputs
identical, but the stop time performance of the machine (Ts, directly control the energizing and de-energizing of the
used to calculate the separation distance, see Section 3.3.1) guarded machine’s MPCEs.
must take into account the slower of the two channels. Some
machines offer only one Primary Control Element. For such • One-Channel Monitoring is a series connection of closed
machines, it is necessary to duplicate the circuit of the single monitor contacts that are forced-guided (mechanically
MPCE, by adding a second. Refer to Figures 3-19 and 3-20 or linked) from each device controlled by the EZ-SCREEN. The
consult the machine manufacturer for additional information. monitoring contacts should open within 200 milliseconds
of the OSSD outputs turning ON (a Clear condition) and
External Device Monitoring: It is strongly recommended that should close within 200 milliseconds of the OSSD outputs
one normally closed, forced-guided monitoring contact of turning OFF (a Blocked condition) or a Lockout will occur
each FSD and MPCE be connected to EDM inputs (see Figures (see Diagnostics, Section 5.1). Refer to Figure 3-20 for
3-18, 3-19, and 3-20). If this is done, proper operation of One-Channel EDM hookup. Connect the monitor contacts
the MPCEs will be verified. Monitoring MPCE contacts is one between +24V dc and EDM1 (pin 3). Leave EDM2 (pin 2)
method of maintaining control reliability. open (no connection). Set the configuration DIP switch to
External Device Monitoring Hookup E1, per Section 4.2.
If not connected previously, it is again strongly recommended • Two-Channel Monitoring is a separate connection of closed
that one normally closed, forced-guided monitoring contact monitor contacts that are forced-guided (mechanically
of each FSD and MPCE be wired as shown in the monitoring linked) from each device controlled by the EZ-SCREEN. The
circuit (see Figures 3-18, 3-19, and 3-20). If this is done, monitoring contacts should always change state (both open
proper operation of the FSDs and MPCEs will be verified. or both close) within 200 milliseconds of the corresponding
Monitoring MPCE contacts is one method of maintaining OSSD state change (turning ON or OFF) or a Lockout will
control reliability. (See the Note Regarding External Device occur (see Diagnostics, Section 5.1). Refer to Figures 3-18
Monitoring below). or 3-19 for 2-channel EDM hookup. Connect the monitor
contacts as shown between +24V dc and EDM1 (pin 3) and
between +24V dc and EDM2 (pin 2). Set the configuration
NOTE: External Device Monitoring and Control Reliability DIP switch to E2, per Section 4.2.
Control Reliability (OSHA 29CFR1910.217, ANSI B11, and • No Monitoring. Use this setting initially, in order to perform
ANSI/RIA R15.06) and Category 3 and 4 (ISO13849-1) the initial checkout; see Section 3.6. If No Monitoring is
requirements demand that a single failure does not lead to the selected, the user must ensure that any single failure of the
loss of the safety function, or does not prevent a normal or external devices does not result in a hazardous condition
immediate stop from occurring. The failure or the fault must and, in such a case, a successive machine cycle will be
be detected at or before the next demand of safety (e.g., at the prevented (see Section 1.3, Control Reliability). To configure
beginning or end of a cycle, or when a safeguard is actuated). the System for No Monitoring, set the configuration DIP
The safety-related function of the machine control then switch to E2, per Section 4.2, and connect (using the
must issue an immediate stop command or prevent the next supplied wire-nut) EDM1 (pin 3) to EDM2 (pin 2).
machine cycle or hazardous situation until the failure or fault
is corrected. The user must refer to the relevant standard(s) 3.5.6 Optional Remote Test Input
for complete information.
A pair of connections is provided on 5-pin emitters (Test1 and
A common method of satisfying these requirements is the use Test2) for the connection of an external remote test switch
of dual-channel control, as described in Section 3.5.2, with (typically a normally open contact held closed). Opening this
External Device Monitoring, where a normally closed, forced- switch “turns OFF” the emitter, simulating an interruption of
guided contact of each MPCE is wired as described in Section the light beams; all OSSD outputs will turn OFF. See Sections
3.5.3 and as shown in Figures 3-19 and 3-20. 2.6.2, 3.3.1, and Figure 3-17.
Receiver
Emitter
The operation of the EZ-SCREEN System with the guarded
machine must be verified before the combined System and
machine may be put into service. To do this, a Qualified
Person must perform the Commissioning Checkout
Procedure described in Section 6.2.
QDE-8..D Cables
Receiver
Emitter
DEE2R..
+24V dc 0V dc
Receiver
8-pin male Euro-style Bn (Pin #1) +24V dc
face view†
Gn/Ye (#7) Ground
Bu (#6) 0V dc
Or (#3) EDM1
Single-Channel
Safety Stop
Circuit
Dual-Channel
Safety Stop
Circuit
†
See Table 2.2 for further NOTE: Do not exceed OSSD maximum load
QDE-8..D cable information. capacitance specification.
Receiver +24V dc 0V dc
8-pin male Euro-style
!
Bn (Pin #1)
unsafe condition. S4
K2 K1
S2
Y3 Y4
Y1 Y2
13 14 MPCE
*Installation of transient (arc) suppressors 1
across the coils of MPCE1 and MPCE2 is
recommended (see Warning). Machine 23 24 *
MPCE
Control
2
**Other interfacing modules and solutions
available, see Section 2.3 or the 33 34 *
Banner Safety Catalog.
†
See Table 2.2 for further QDE-8..D cable information. Feedback (optional)
Figure 3-19. Generic hookup – interface module (2-channel EDM, manual reset)
Receiver
8-pin male Euro-style +24V dc 0V dc
face view†
WARNING . . . Use of
!
Bn (Pin #1)
Transient Suppressors Gn/Ye (#7)
If transient suppressors
Bu (#6)
are used, they MUST
be installed across the coils of the Bk (#5)
machine control elements. NEVER Wh (#4)
install suppressors directly across the Vi (#8)
contacts of the IM-T-..A Module. It is Reset
Or (#3)
possible for suppressors to fail as a
Or/Bk (#2) not
short circuit. If installed directly across connected
the contacts of the IM-T-..A Module, a
short-circuit suppressor will create an IM-T-9A**
unsafe condition. S3 S1
K2 K1
S4 S2
Y3 Y4
Y1 Y2
13 14 MPCE
*Installation of transient (arc) suppressors 1
across the coils of MPCE1 and MPCE2 is Machine 23 24 MPCE *
recommended (see Warning).
Control 2
**Other interfacing modules and solutions
available, see Section 2.3 or the 33 34 *
Banner Safety Catalog.
Figure 3-20. Generic hookup – interface module (1-Channel EDM, manual reset)
4. System Operation
4.1 Security Protocol Scan Code. Scan Code is used to allow operation of multiple
pairs of emitters and receivers in close proximity (see
Certain procedures for installing, maintaining and operating
Sections 3.1.8 and 1.4.4). Scan Code may be set to 1 or 2,
the EZ-SCREEN system must be performed by either
using the switch on the configuration panel. The Scan Code
Designated Persons or Qualified Persons.
setting for each emitter must agree with its corresponding
A Designated Person is identified and designated in writing, receiver. The Scan Code settings may be changed while in
by the employer, as being appropriately trained and qualified RUN mode without causing a Lockout.
to perform system resets and the specified checkout
Trip or Latch Output operation is selected on two DIP
procedures on the EZ-SCREEN System. The Designated
switches in the receiver configuration port; see Figure 4-1.
Person is empowered to:
Both switches must be set to the same setting. If they have
• Perform manual resets and hold possession of the reset key different settings, an error code will be displayed.
(see Section 4.3), and
If the switches are set for Trip Output (T), the System will
• Perform the Daily Checkout Procedure (see Section 6). auto-reset. If the switches are set for Latch Output (L), the
A Qualified Person, by possession of a recognized degree or System will require a manual reset.
certificate of professional training, or by extensive knowledge, External Device Monitoring (EDM): EDM mode is selected
training and experience, has successfully demonstrated the via a 2-position DIP switch in the receiver configuration port;
ability to solve problems relating to the installation of the see Figure 4-1. For 1-Channel Monitoring, set the EDM DIP
EZ-SCREEN System and its integration with the guarded switch to the E1 position. For 2-Channel Monitoring or No
machine. In addition to everything for which the Designated Monitoring, set the switch to the E2 position. See Section
Person is empowered, the Qualified Person is empowered to: 3.5.3 for more information.
• Install the EZ-SCREEN System, Reduced Resolution: Two-beam Reduced Resolution can be
• Perform all checkout procedures (see Section 6), enabled by selecting “RR” on both DIP switches as labeled.
• Make changes to the internal configuration settings and NOTE: Enabling Reduced Resolution will affect the Minimum
Separation Distance, see Section 3.1.1.
• Reset the System following a Lockout condition.
4.4 Status Indicators configuration setting and displays a specific error code
A variety of status indicators are clearly visible on each when the receiver is in Lockout. The 7-segment display also
emitter and receiver front panel (see Figure 1-3 and momentarily indicates the Scan Code setting at power-up or
Section 3.4.1, steps #3 and #4), and Section 7.6 (cascadeable when changed.
models only).
Emitter: A single bi-color Red/Green Status indicator shows Operating Required Status
Diagnostic Display
whether power is applied, and whether the emitter is in RUN Status Event Indicator
mode, optional TEST mode, or Lockout status. A 7-segment Scan code flash 3x –
Diagnostic Display indicates a specific error code when the alternates
emitter is in Lockout; the display also momentarily indicates Apply Red single-
the Scan Code setting at power-up or when changed. Power-up then
power flash
or
Receiver: Bi-color Red/Green Zone indicators show whether a then
section of the defined area is aligned and clear, or is blocked
and/or misaligned. A Yellow Reset indicator shows when the Passes
System is in RUN mode or is waiting for a reset. There are 8 Run Mode internal Green Dash
Zone indicators for all model lengths, each of which indicates tests
Blocked/Clear conditions for approximately 1/8 of the total
Open Test Flashing
light screen. Test Mode Dash
switch Green
A bi-color Red/Green Status indicator shows when the OSSD Internal/
outputs are ON (Green) or OFF (Red), or the System is in Flashing Displays error code
Lockout external
Lockout status (flashing Red). A 3-digit 7-segment Diagnostic Red (see Section 5.1)
fault
Display indicates the receiver’s Trip (–) or Latch (L)
Figure 4-3. Emitter status indicator operation
Pass
Alignment Mode – Zone 1 Red*
internal OFF OFF OFF
Beam 1 Blocked Others OFF
tests
Zone 1 Green
Alignment Mode – Align
ON Red Others Red or Total number of blocked beams OFF
Beam 1 Clear Beam 1
Green
Run Mode – Align all
ON Green All ON Green OFF OFF ON
Clear beams
Run Mode – Beam(s) Red or
ON Red Total number of blocked beams OFF
Blocked blocked Green*
Flashing Continues Continues
Noise Detected –
previous previous
Reset Interface
reading reading
Internal/
Flashing
Lockout external OFF All OFF Displays error code (see Section 5.1) OFF
Red
fault
*NOTE: If beam 1 is blocked, Zone indicators 2-8 will be OFF, because beam 1 provides the synchronization signal for all the beams.
Figure 4-4. Receiver status indicator operation (Trip Output configured)
Beam 1 Green,
Alignment Mode – Align
ON Red others Red or Total number of blocked beams OFF
Beam 1 Clear Beam 1
Green
Clear all
Latched – Clear Flashing Red All ON Green OFF OFF OFF
beams
Flashing Continues Continues
Noise Detected –
previous previous
Reset Interface
reading reading
Internal/ Flashing
Lockout OFF OFF Displays error code (see Section 5.1) OFF
external fault Red
*NOTE: If beam 1 is blocked, Zone indicators 2-8 will be OFF, because beam 1 provides the synchronization signal for all the beams.
Figure 4-5. Receiver status indicator operation (Latch Output configured)
Inverted Display
In some applications, it is advantageous to mount the emitter
and receiver upside down (with the status indicator ends at
the “top”). This could present a problem when monitoring the
status display, so EZ-SCREEN receivers and emitters have the
option of inverting their 7-segment display character(s). The
Invert Display push button, located next to the DIP switches
under the access cover, requires just a single push (100 ms
or longer) to invert the display characters from their current
position. See Figure 4-6.
An access cover and display label that accommodates this
inversion is provided with each emitter and receiver, in their
hardware packets (also see Section 2.4 Replacement Parts).
Place the inverted display label on top of the existing display
label. Replace the standard access cover with the supplied
inverted-label version by removing the screw-on security plate,
gently pulling out the access cover and snapping the new
cover into place. Figure 4-6. Inverted display showing the number 10
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
P/N 112852 rev. C 39
EZ-SCREEN
System Operation Instruction Manual
4.5 Normal Operation Internal Faults (Lockouts): If either sensor detects a critical
fault, scanning ceases, the receiver outputs turn OFF and
System Power-Up diagnostic information is displayed through the sensor’s front
The System will power up in one of two ways, depending on window. See Section 5 for resolution of error/fault conditions.
the Trip/Latch Output configuration. If the System is set for
Trip Output, it will power up and reset automatically; if the
System is set for Latch Output, it will require a manual reset
4.6 Periodic Checkout Requirements
procedure after power-up and sensor alignment. To ensure continued reliable operation, the System must be
checked out periodically.
Trip Output Power-Up: When power is applied, each sensor
will conduct self-tests to detect critical internal faults, At every shift change, power-up and machine setup change,
determine configuration settings, and prepare the System for the Daily checkout should be performed; this checkout may
operation. (If either sensor detects a critical fault, scanning be performed by a Designated or Qualified Person (see
ceases, the receiver outputs remain OFF and diagnostic Section 6.3 and the Daily Checkout Card for the procedure).
information is displayed through the sensor’s front window.)
If no faults are detected, the System will automatically enter Semi-annually, the System and its interface to the guarded
ALIGNMENT mode, with the receiver looking for an optical machine should be thoroughly checked out; this checkout
sync pattern from the emitter. If the receiver is aligned and must be performed by a Qualified Person (see Section 6.4).
receiving the proper sync pattern, it enters RUN mode and A copy of these test results should be posted on or near the
begins scanning to determine the blocked or clear status of machine.
each beam. No manual reset operation is required. Whenever changes are made to the System (either a new
Latch Output Power-Up: When power is applied, each configuration of the EZ-SCREEN System or changes to the
sensor will conduct self-tests to detect critical internal faults, machine), the Commissioning Checkout should be performed
determine configuration settings, and prepare the System for (see Section 6.2).
operation. (If either sensor detects a critical fault, scanning
ceases, the receiver outputs remain OFF and diagnostic
WARNING . . . Verify Proper Operation
!
information is displayed through the sensor’s front window.)
If no faults are detected, the System will automatically enter
It is the user’s responsibility to verify proper
ALIGNMENT mode, with the receiver looking for an optical
operation, on a regular basis, as instructed in
sync pattern from the emitter. If the receiver is aligned and
Section 6.
receiving the proper sync pattern, it begins scanning to
determine the blocked or clear status of each beam. When Failure to correct such problems can result in serious
all beams are aligned, the Yellow Reset indicator will double- bodily injury or death.
flash to indicate the System is waiting for a manual reset.
After a valid manual reset, the System enters RUN mode and
continues scanning.
During RUN Mode
Trip Output Configuration: If any beams become blocked
while the System is running with Trip Output selected, the
receiver outputs turn OFF within the stated System response
time (see Specifications). If all the beams then become clear,
the receiver outputs come back ON. No resets of any kind are
needed. All required machine control resets are provided by
the machine control circuit.
Latch Output Configuration: If any beams become blocked
while the System is running with Latch Output selected, the
receiver outputs turn OFF within the stated System response
time (see Specifications). If all the beams then become clear,
the receiver Zone indicators will all be Green and the Reset
indicator will single-flash, indicating the System is waiting for
a manual latch reset. In Latch Output operation, the outputs
come back ON only when all beams are clear and after a
manual reset. The System will wait for a manual reset; when
a valid reset signal is received and all beams remain clear, the
receiver outputs turn ON.
Evaluate status indicators per Section 4.4. See Section 5.2 for
WARNING . . . Lockouts and Power
!
Test mode indication.
Failures
A Lockout condition causes all of the EZ-SCREEN OSSD
outputs to turn or remain OFF, sending a stop signal to the Power failures and Lockout conditions are
guarded machine. Each sensor provides diagnostic error indication of a problem and must be investigated
codes to assist in the identification of the cause(s) of lockouts immediately by a Qualified Person. Attempts to continue to
(see Sections 5.1.1 and 5.1.2). operate machinery by bypassing the EZ-SCREEN System or
other safeguards is dangerous and could result in serious
The System provides easy methods for determining operating bodily injury or death.
problems. A Lockout condition is indicated by the following:
Emitter
WARNING . . . Shut Down Machinery
Status indicator
Diagnostic Display
Receiver
Flashing Red
Error code (flashing) ! Before Servicing
The machinery to which the EZ-SCREEN System
Reset indicator OFF is connected must not be operating at any time
Status indicator Flashing Red during major service or maintenance. This may require
Zone Indicators OFF lockout/tagout procedures (refer to OSHA1910.147, ANSI
Diagnostic Display Error code (flashing) Z244-1, or the appropriate standard for controlling hazardous
energy). Servicing the EZ-SCREEN System while the
Recovery Procedures hazardous machinery is operational could result in serious
To recover from a Lockout condition, all errors must be bodily injury or death.
corrected and sensor resets must be performed as shown
below.
Receiver Reset
Close the receiver Reset switch for 1/4 to 2 seconds and then
open the switch (per Section 4.2), or power the sensor down,
wait a second or two, then power it up.
NOTE: If the power down/up method is used and the System
is set for Latch Output, a manual reset, as described in
Section 4.4, is required to resume full operation.
Emitter Reset
Power the sensor down, wait a second or two, and then
power it up.
Flashing Cascade Input Simultaneity • Check operation of Channel A and Channel B of cascade input.
Operation of channels A and B • Cycle power or cycle the input. See Sections 7.7 and 7.8.
mismatch > 3 seconds.
6. Checkout Procedures
Study each procedure in its entirety, to understand each step To prepare the System for this checkout:
thoroughly before beginning. Refer all questions to the
Banner applications engineering department at the address or 1. Examine the guarded machine to verify that it is of a type
numbers listed on the cover of this manual. Checkouts must and design compatible with the EZ-SCREEN System. See
be performed as detailed in Section 6.1 below and results Section 1.2 for a list of misapplications.
should be recorded and kept in the appropriate place (e.g., 2. Verify the EZ-SCREEN System is configured for the
near the machine, and/or in a technical file). intended application (see Section 4.2).
3. Verify that the minimum separation distance from the
6.1 Schedule of Checkouts closest danger point of the guarded machine to the defined
Trip Test: The procedure for EZ-SCREEN System trip test is area is not less than the calculated distance, per Section
described in Section 3.4.4. This procedure must be performed 3.1.1 of this manual.
at installation, and at any time the System, the guarded 4. Verify that:
machine, or any part of the application is installed or altered.
The procedure must be performed by a Qualified Person. • Access to any dangerous parts of the guarded machine is
not possible from any direction not protected by the
Commissioning Checkout: The procedure described in EZ-SCREEN System, hard guarding, or supplemental
Section 6.2 must be performed at installation or whenever safeguarding, and
changes are made to the System (either a new configuration
of the EZ-SCREEN System or changes to the machine). The • It is not possible for a person to stand between the
procedure must be performed by a Qualified Person. defined area and the dangerous parts of the machine, or
Shift/Daily Checkout: The procedure for “daily” checkout • Supplemental safeguarding and hard guarding, as
of the EZ-SCREEN System is described on the supplied described by the appropriate safety standards, are in
Daily Checkout card (Banner p/n 113361 for SLS.. models, place and functioning properly in any space (between the
P/N 118173 for SLSC.. models). Daily Checkout is to be defined area and any hazard) which is large enough to
performed at each shift change or machine setup change, allow a person to stand undetected by the EZ-SCREEN
whenever the System is powered up — at least daily. The System (see Sections 3.1.2 and 3.1.4).
procedure is listed on the Daily Checkout card and may be 5. Verify that all reset switches are mounted outside and in
performed by a Designated Person or a Qualified Person. full view of the guarded area, out of reach of anyone inside
Semi-Annual Checkout: The procedure for initial checkout of the guarded area, and that means of preventing inadvertent
the EZ-SCREEN System is to be performed every six months, use is in place (see Section 3.1.3).
following installation of the System. The procedure is listed 6. Examine the electrical wiring connections between the
on the Semi-Annual Checkout card (Banner P/N 113362) and EZ-SCREEN System FSD outputs and the guarded
must be performed by a Qualified Person. machine’s control elements to verify that the wiring meets
the requirements stated in Section 3.5.
6.2 Commissioning Checkout
7. Inspect the area near the defined area (including work
Perform this checkout procedure as part of System pieces and the guarded machine) for reflective surfaces
installation (after the System has been interfaced to (see Section 3.1.6). Remove the reflective surfaces
the guarded machine as described in Section 3.5), or if possible by relocating them, painting, masking or
whenever changes are made to the System (either a new roughening them. Remaining problem reflections will
configuration of the EZ-SCREEN System or changes to become apparent during the Trip Test in step 11.
the machine). A Qualified Person (as defined in Section
4.1) must perform the procedure; checkout results should 8. Apply power to the EZ-SCREEN System. Verify that power
be recorded and kept on or near the guarded machine as to the guarded machine is OFF. Remove all obstructions
required by applicable standards. from the defined area. If the System is configured for
Manual Power-Up, the Yellow Status indicator will be
double-flashing. Perform a manual reset (close the reset
switch for 1/4 to 2 seconds, then open the switch).
9. Observe the Status indicators and the Diagnostic Display: 15. Test the machine stopping response time, using an
• Lockout: Status flashing Red instrument designed for that purpose, to verify that it
All others OFF is the same or less than the overall system response
time specified by the machine manufacturer. (Banner’s
• Blocked: Status ON Red applications engineering department can recommend a
One or more Zone indicators ON Red suitable instrument.)
Reset ON Yellow
Do not continue operation until the entire checkout
• Clear: Status ON Green* procedure is complete and all problems are corrected.
All Zone indicators ON Green
Reset ON Yellow WARNING . . . Do Not Use Machine
• Latch:
(defined
Status ON Red
All Zone indicators ON Green
area clear) Reset flashing Yellow
! Until System Is Working Properly
If any of these checks cannot be verified, do
not attempt to use the EZ-SCREEN System/
* The Green Status indicator will be flashing if Reduced guarded machine until the defect or problem has been
Resolution is enabled. corrected (see Section 5).
10. A Blocked condition indicates that one or more of the Attempts to use the guarded machine under such
beams is misaligned or interrupted. To correct this conditions could result in serious bodily injury or death.
situation see the Alignment procedure in Section 3.4.
If the system is in a Latch condition, perform a manual
reset. 6.3 Shift/Daily Checkout
11. Once the Green and Yellow Status indicators are ON, Perform the procedure contained on the Daily Checkout
perform the trip test (described in Section 3.4.4) on card at every shift change, power-up and machine set-
each sensing field to verify proper System operation up change. During continuous machine run periods, this
and to detect possible optical short circuits or reflection checkout should be performed at intervals not to exceed 24
problems. Do not continue until the EZ-SCREEN System hours.
passes the trip test. A Designated Person or Qualified Person (as defined in
Do not expose any individual to any hazard during the the Safety Glossary) must perform the procedure. A copy
following checks. of checkout results should be recorded and kept in the
appropriate place (e.g., near or on the machine, in the
WARNING . . . Before Applying Power to
!
machine’s technical file).
the Machine
Refer to the procedure detailed on the Daily Checkout card
Verify that the guarded area is clear of personnel (Banner part number 113361 for SLS.. models, P/N 118173
and unwanted materials (such as tools) before for SLSC.. models) in the lit packet included with the receiver.
applying power to the guarded machine. Failure to do so could If the Daily Checkout card is missing, contact Banner
result in serious bodily injury or death. Engineering or download at www.bannerengineering.com.
12. Apply power to the guarded machine and verify that the
machine does not start up. Interrupt (block) the defined 6.4 Semi-Annual (Six-Month) Checkout
area with the appropriate supplied test piece (see table
in Section 3.4.4) and verify that it is not possible for the Perform the procedure contained on the Semi-Annual
guarded machine to be put into motion while the beam(s) Checkout card every six months following System
is blocked. installation, or whenever changes are made to the System
(either a new configuration of the EZ-SCREEN System or
13. Initiate machine motion of the guarded machine and, changes to the machine).
while it is moving, use the supplied test piece to block the
defined area. Do not attempt to insert the test piece into A Qualified Person (as defined in the Safety Glossary) must
the dangerous parts of the machine. Upon blocking any perform the procedure. A copy of checkout results should be
beam, the dangerous parts of the machine should come to recorded and kept in the appropriate place (e.g., near or on
a stop with no apparent delay. the machine, in the machine’s technical file).
Remove the test piece from the beam; verify that the Refer to the procedure contained on the Semi-Annual
machine does not automatically restart, and that the Checkout card (Banner part number 113362) in the lit packet
initiation devices must be engaged to restart the machine. included with the receiver. If the Semi-Annual Checkout card
is missing, contact Banner Engineering or download at www.
14. Remove electrical power to the EZ-SCREEN System.
bannerengineering.com.
Both OSSD outputs should immediately turn OFF, and the
machine should not be capable of starting until power is
re-applied to the EZ-SCREEN System.
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
48 P/N 112852 rev. C
EZ-SCREEN
Instruction Manual
Cascadeable EZ-SCREEN
7. Cascadeable EZ-SCREEN
7.1 Overview of Cascading 7.1.1 System Components and Specifications
EZ-SCREEN emitters and receivers are also available in A stand-alone cascadeable EZ-SCREEN system includes a
cascadeable models. These models can be used as stand- compatible emitter and receiver (equal length and resolution;
alone light screens, or can be cascaded up to four systems; available separately or in pairs), a terminator plug for the
see Figure 7-1. The cascaded sensor pairs can be any length, receiver and two single-ended (machine interface) cables.
any number of beams, or have different resolutions
(i.e., 14 mm and 30 mm), as long as each emitter matches A multiple-light screen cascaded EZ-SCREEN system includes
its own receiver. compatible emitter/receiver pairs (up to four), a terminator
plug for the last receiver in the cascade, two single-ended
NOTE: EZ-SCREEN SLS models (with Inverted Display) can cables to interface with the machine and provide power to the
be used as the end sensor pair. EZ-SCREEN Grid/ system, and pairs of double-ended (sensor interface) cables
Point systems and PICO-GUARD systems can not be to interconnect the emitters and the receivers in the cascade.
interfaced with the Cascade Input.
The terminator plug must be used on the receiver in a stand-
The control reliability, installation and alignment, electrical alone system, and on the last receiver in a multiple-system
interface to the guarded machine, initial checkout, periodic cascade or, a QDE2R4-8..D cable interfaced with an E-stop or
checkout, troubleshooting and maintenance features of other hard contacts (see Sections 7.7 and 7.8).
cascadeable models are functionally identical to those of the
standard models. Available single-ended, double-ended, and splitter cables are
listed in Section 2.2. Power cable length as well as the length
Electrical connections are made through M12 (or Euro-style) for the interconnect cables are limited; see Section 7.3 for
quick-disconnects. The emitter has an 8-pin connector for more information.
power and ground. Optional 5-pin emitters with TEST are
available. 7.1.2 Receiver Display
The receiver has an 8-pin connector for power, ground, A cascaded receiver display in Run Mode, shows:
reset, EDM #1 and #2, and OSSD #1 and #2. All systems in a No beams blocked, Latch Mode: “L”
cascade are activating the same set of OSSD outputs, which No beams blocked, Trip Mode: “–“
are the OSSDs of the master receiver.
Blocked receiver in a cascade: number of blocked beams
Receivers between the blocked one and the machine: “|---|”
(Flashing “|---|”: see Section 5.1.1.)
Figure 7-1. Multiple cascaded light screens used to guard two areas of one machine (power press cross-section, receivers
only shown using EZA-MBK-21 “L” mounting bracket system)
14 mm Resolution Models
Defined 0.1 m to 6 m (4" to 20') range
Area Sensor
Height* 5-pin Emitter 8-pin Emitter Number of Response
Connector** Connector*** Beams Time (Tr)
Emitter SLSCE14-300Q5 SLSCE14-300Q8
300 mm
Receiver SLSCR14-300Q8 SLSCR14-300Q8 40 15 ms
(11.8") Pair SLSCP14-300Q85 SLSCP14-300Q88
Emitter SLSCE14-450Q5 SLSCE14-450Q8
450 mm
Receiver SLSCR14-450Q8 SLSCR14-450Q8 60 19 ms
(17.7") Pair SLSCP14-450Q85 SLSCP14-450Q88
Emitter SLSCE14-600Q5 SLSCE14-600Q8
600 mm
Receiver SLSCR14-600Q8 SLSCR14-600Q8 80 23 ms
(23.6") Pair SLSCP14-600Q85 SLSCP14-600Q88
Emitter SLSCE14-750Q5 SLSCE14-750Q8
750 mm
Receiver SLSCR14-750Q8 SLSCR14-750Q8 100 27 ms
(29.5") Pair SLSCP14-750Q85 SLSCP14-750Q88
Emitter SLSCE14-900Q5 SLSCE14-900Q8
900 mm
Receiver SLSCR14-900Q8 SLSCR14-900Q8 120 32 ms
(35.4") Pair SLSCP14-900Q85 SLSCP14-900Q88
Emitter SLSCE14-1050Q5 SLSCE14-1050Q8
1050 mm
Receiver SLSCR14-1050Q8 SLSCR14-1050Q8 140 36 ms
(41.3") Pair SLSCP14-1050Q85 SLSCP14-1050Q88
Emitter SLSCE14-1200Q5 SLSCE14-1200Q8
1200 mm
Receiver SLSCR14-1200Q8 SLSCR14-1200Q8 160 40 ms
(47.2") Pair SLSCP14-1200Q85 SLSCP14-1200Q88
Emitter SLSCE14-1350Q5 SLSCE14-1350Q8
1350 mm
Receiver SLSCR14-1350Q8 SLSCR14-1350Q8 180 43 ms
(53.1") Pair SLSCP14-1350Q85 SLSCP14-1350Q88
Emitter SLSCE14-1500Q5 SLSCE14-1500Q8
1500 mm
Receiver SLSCR14-1500Q8 SLSCR14-1500Q8 200 48 ms
(59.0") Pair SLSCP14-1500Q85 SLSCP14-1500Q88
Emitter SLSCE14-1650Q5 SLSCE14-1650Q8
1650 mm
Receiver SLSCR14-1650Q8 SLSCR14-1650Q8 220 52 ms
(65.0") Pair SLSCP14-1650Q85 SLSCP14-1650Q88
Emitter SLSCE14-1800Q5 SLSCE14-1800Q8
1800 mm
Receiver SLSCR14-1800Q8 SLSCR14-1800Q8 240 56 ms
(70.9") Pair SLSCP14-1800Q85 SLSCP14-1800Q88
*150 mm SLSC.. systems not available.
**5-pin emitters feature Test input.
***8-pin emitters feature “swapable” hookup; see Sections 3.3.1 and 3.7.
Cable Lengths
25' 25' 25' 25' 25' EZ-SCREEN
(L2) Position #1
15' 15' 15' 15' 15'
3' 3' 3' 3' 3' L1
1' 1' 1' 1' 1'
Machine
*Multiple DEE2R-..D cables may be required. Control
Example 1: Example 2:
Machine Interface Cable (L1): 15' Machine Interface Cable (L1): 50'
Sensor Interconnect Cable (L2): 175' (Using one 100' and Sensor Interconnect Cable (L2): 50' or shorter
one 75' DEE2R cables) or 100' or shorter using single cables
Figure 7-2. Cable length options for two cascaded light screens
L2 L3 L2 L3 L2 L3 L2 L3
L3
Max. L2* 115' 1' 110' 1' 80' 1' 60' 1'
Max. L3* 1' 200' 1' 200' 1' 155' 1' 110'
EZ-SCREEN
100' 15' 100' 15' Position #2
Sensor
Interconnect 75' 75' 75' 50' 75' 15'
DEE2R-..D cables
Cable Lengths 50' 100' 50' 100' 50' 50' 50' 15'
Individual
L2
(L2, L3)
25' 100' 25' 100' 25' 100' 25' 50'
15' 100' 15' 100' 15' 100' 15' 75'
3' 100' 3' 100' 3' 100' 3' 100'
1' 100' 1' 100' 1' 100' 1' 100'
*Multiple DEE2R-..D cables may be required.
EZ-SCREEN
Position #1
Example 1: Example 2:
Machine Interface Cable (L1): 3' Machine Interface Cable (L1): 15'
Sensor Interconnect Cable (L2): 75' Sensor Interconnect Cable (L2): 75'
Sensor Interconnect Cable (L3): 50' Sensor Interconnect Cable (L3): 15'
L1
Machine
Control
Figure 7-3. Cable length options for three cascaded light screens
Interconnect
25' 50' 25' 25' 50' 25' 25' 25' 25'
Individual
Cables (L2, L3
and L4) 15' 75' 15' 15' 75' 15' 15' 25' 15' 15' 15' 15'
3' 100' 3' 3' 100' 3' 3' 50' 3' 3' 25' 3'
1' 100' 1' 1' 100' 1' 1' 75' 1' 1' 25' 1'
*Multiple DEE2R-..D cables may be required.
EZ-SCREEN
Position #3
L3
EZ-SCREEN
Position #2
L2
EZ-SCREEN
Position #1
L1
Machine
Control
Figure 7-4. Cable length options for four cascaded light screens
7.4 Response Time for Cascaded Light Screens Overall Response Time and Separation Distance
The cascaded system’s Overall Response Time (Tr) is equal to
Response time is an important factor in determining a light the response time of the individual sensor pair with the most
screen’s separation (safety) distance. For cascaded (or beams (i.e., the slowest individual response time), plus an
“daisy-chained”) EZ-SCREEN systems, that response time adder resulting from the number of systems in the cascade. Tr
is dependent on the number of light screens, the number of can be found by the following formula:
beams in the light screens, and their positions in the cascade.
It can be calculated easily, in two ways: Tr = Tr(max) + [(N-1) x 2 ms]
• Individually for each light screen in the cascade (separation where:
distance is calculated for each light screen in the cascade),
or Tr(max) is the response time of the slowest individual pair in
the cascade (i.e., the pair with the most beams; see Section
• Based on the worst-case time for the entire cascade (all light 7.2).
screens in the cascade have the same separation distance).
N is the number of sensor pairs in the cascade.
Individual Response Time and Separation Distance
When calculating individual separation distance for each Use this Tr value in the formula in Section 3.1.1 to determine
emitter/receiver pair, the pair’s position in the cascade impacts Overall Separation Distance (Ds). This will ensure that all
its response time, which then impacts its separation distance. sensor pairs will be located at an adequate distance from the
This method results in the closest possible separation hazard, no matter how the system is installed.
distance for each light screen.
Response time depends on how far “downstream” the light
screen is from the machine control. Each light screen position EZ-SCREEN
Position #4
in the cascade, starting from the first light screen in the 15 + 2 + 2 + 2 = 21
cascade, increases the light screen’s response time by 2 ms. 21 ms response
EZ-SCREEN EZ-SCREEN
Position #3 Position #3
15 + 2 + 2 = 19 15 + 2 + 2 = 19
Individual Response Individual Response
Time: 19 ms Time: 19 ms
EZ-SCREEN
Position #3
40 + 2 + 2 = 44
Individual Response
Time: 44 ms EZ-SCREEN
Position #2
15 + 2 = 17
Individual Response
Time: 17 ms
EZ-SCREEN
Position #2
40 + 2 = 42
Individual Response
Time: 42 ms
EZ-SCREEN
Position #2
15 + 2 = 17
Individual Response
Time: 17 ms
System Overall Response Time for all systems shown here is 40 + [(3-1) x 2 ms] = 44 ms
Figure 7-6. Calculating response times for a three-light screen cascade – both Individual and Overall methods
7.5 Cascaded Sensor Configuration Settings Perform the following procedure on the first receiver only in
the cascade (closest to the machine interface).
Setting cascaded sensors for scan code, trip or latch output,
external device monitoring (EDM), reduced resolution, fixed 1. From either normal operation or a power OFF condition, set
blanking and inverted display is identical to the procedure for the second and fifth DIP switches (T/L and RR) both to the
non-cascadeable emitters and receivers (see Section 4). left (T and RR position).
Scan codes for each emitter and receiver pair must match. 2. Set the third and fourth DIP switches (the second T/L and
However, for cascaded installations, scan codes must RR) both to the right (L and OFF position); see Figure 7-7.
alternate on adjacent systems as described in Section 3.1.8 3. The receiver should be in a lockout condition or power OFF.
and Figure 3-8. See warning below.
4. If power is OFF: Apply power
While the scan code, reduced resolution, fixed blanking, and Lockout condition: Perform a valid reset sequence (close
inverted display settings are independent for each cascaded the reset switch for 0.25 to 2 seconds, then reopen.
sensor pair, the trip/latch mode and EDM settings must be
determined by the first receiver in the cascade (closest to 5. Coming out of lockout or during startup, the DIP switch
the machine interface), which controls the OSSD outputs. All configuration will be recognized as Cascaded Teach Mode,
other receivers in the cascade must be set for trip mode indicated by the following:
and 2-channel EDM (factory default settings). • First receiver display shows
The settings on the first receiver then determine trip or latch No E-stop connected: “4C,” “3C,” or “2C” ON steady
mode and 1- or 2-channel EDM, and this is the only receiver E-stop w/closed contacts: “4CE,” “3CE,” or “2CE” ON
that requires a reset following a latch condition. steady
E-stop w/open contacts: “4CE,” “3CE” or “2CE” flashing
7.5.1 Fixed Blanking • Last cascaded receiver display shows
Terminator connected: “1C” ON steady
One or more areas within any cascaded EZ-SCREEN sensor E-stop w/closed contacts: “1CE” ON steady
pair can be blanked out, just as with other EZ-SCREEN E-stop w/open contacts:“1CE” flashing
light screens. Each sensor pair within a cascade must be
programmed separately, if required. See Section 3.4.3 for • Other receivers display “1C” ON steady
more information and programming procedure.
• All receiver Zone indicators OFF
7.6 Programming for Cascaded Operation • All receiver Yellow reset indicators OFF
Each cascaded system must be programmed, before it can be • All receiver Status indicators solid red
run in a production environment. 6. To enable and exit Cascade Teach Mode, reconfigure DIP
Before programming, install all emitters and receivers per switches for normal operation.
Sections 3 and 7. The last receiver must be terminated 7. Perform a valid reset sequence (see Step 4), or cycle power.
either with a terminator plug or by connecting two closed
mechanical contacts (see Sections 7.7 and 7.8).
1. Install cascade system per
Sections 3 and 7
With Power ON:
!
WARNING . . . Scan Code
2. Set T/L and RR switches as
In situations where multiple systems are shown on first receiver only
mounted closely together, or where a secondary
emitter is in view (within ±5°), within range of an 3. Press the Reset button or cycle
power
adjacent receiver; the adjacent systems must be configured for
different Scan Codes (i.e., one system set for Scan Code 1 and 4. Reconfigure DIP switches for
the other for Scan Code 2). normal operation
If not, a receiver may synchronize to the signal from the 5. Press the Reset button or cycle
wrong emitter, reducing the safety function of the light power
screen.
This situation will be discovered by performing the trip test Figure 7-7. DIP switch programming to enable cascade installation
(see Section 3.4.3).
7.8 Positive-Opening Safety Interlock Switches The safety switches and actuators used with the Cascade
must be designed and installed so that they cannot be easily
The Cascade input may be used to monitor interlock safety defeated. They must be mounted securely, so that their
gates or guards. Requirements vary widely for the level of physical position can not shift, using reliable fasteners that
control reliability or safety category (per ISO 13849-1) in the require a tool to remove. Mounting slots in the housings are
application of interlocked guards. While Banner Engineering for initial adjustment only; final mounting holes must be used
recommends the highest level of safety in any application, it for permanent location.
is the responsibility of the user to safely install, operate, and
maintain each safety system and comply with all relevant Positive-Opening Interlocking Safety Switches
laws and regulations. Of the following applications, Figure 7-9 Two individually mounted safety interlock switches are
meets or exceeds the requirements for OSHA control reliability recommended for each guard to meet safety category 4, per
and Safety Category 4, per ISO 13849-1. ISO 13849-1, and must satisfy several requirements. Each
switch must provide at minimum, one normally closed (N/C)
electrically isolated contact to interface with the Cascade input
(see Figure 7-9).
WARNING . . . Unguarded Moving Parts
It must not be possible for personnel to reach The contacts must be of “positive-opening” design, with one
any hazard point through an opened guard (or or more normally closed contacts rated for safety. Positive-
any opening) before hazardous machine motion opening operation causes the switch to be forced open,
has completely stopped. without the use of springs, when the switch actuator is
disengaged or moved from its home position (see the Banner
Please reference OSHA CFR1910.217, ANSI B11 standards, Safety Catalog for examples). In addition, the switches must be
or other appropriate standards for information on determining mounted in a “positive mode” to move/disengage the actuator
safety distances and safe opening sizes for your application from its home position and open the normally closed contact
(see Inside back cover). when the guard opens.
Open
7.8.1 Monitoring Series-Connected Positive-Opening apparently satisfied, the controller allows a reset. This
system is no longer redundant and, if the second switch fails,
Safety Switches may result in an unsafe condition (i.e., the accumulation of
When monitoring two individually mounted safety switches faults results in the loss of the safety function).
(as shown in Figure 7-9), a faulty switch will be detected if it 2) Non-detection of a failure. If a good guard is opened, the
fails to switch as the guard opens. In this case, the controller controller de-energizes its outputs (a normal response). But
will de-energize its OSSD output and disable its reset function if a faulty guard is then opened and closed before the good
until the input requirements are met (i.e., the faulty switch guard is re-closed, the failure on the faulty guard is not
is replaced). However, when a series of interlocking safety detected. This system also is no longer redundant and may
switches is monitored by the EZ-SCREEN, the failure of one result in a loss of safety if the second safety switch fails to
switch in the system may be masked or not detected at all switch when needed.
(refer to Figure 7-10).
The circuits in either scenario do not inherently comply with
Series-connected, positive-opening interlock switch circuits do the safety standard requirements of detecting single faults
not meet ISO 13849-1 Safety Category 4 and may not meet and preventing the next cycle. In multiple-guard systems
Control Reliability requirements because of the potential of using series-connected positive-opening safety switches, it
an inappropriate reset or a potential loss of the safety stop is important to periodically check the functional integrity of
signal. A multiple connection of this type should not be used each interlocked guard individually. Operators, maintenance
in applications where loss of the safety stop signal or an personnel, and others associated with the operation of the
inappropriate reset could lead to serious injury or death. The machine must be trained to recognize such failures and be
following two scenarios assume two positive-opening safety instructed to correct them immediately.
switches on each guard:
Open and close each guard separately while verifying that
1) Masking of a failure. If a guard is opened but a switch fails the controller outputs operate correctly throughout the check
to open, the redundant safety switch will open and cause procedure. Follow each gate closure with a manual reset, if
the PICO-GUARD controller to de-energize its outputs. If the needed. If a contact set fails, the controller will not enable its
faulty guard is then closed, both Cascade input channels reset function. If the controller does not reset, a switch may
also close, but because one channel did not open, the have failed; that switch must be immediately replaced.
controller will not reset.
This check must be performed and all faults must be cleared,
However, if the faulty switch is not replaced and a second at a minimum, during periodic checkouts. If the application
“good” guard is cycled (opening and then closing both can not exclude these types of failures and such a failure
of the cascade input channels), the controller considers could result in serious injury or death, then the safety
the failure to be corrected. With the input requirements switches must not be connected in series.
Open Open Open
bn
bk
Glossary of Terms
ANSI (American National Standards Institute): the American CSA: Canadian Standards Association, a testing agency
National Standards Institute, an association of industry similar to Underwriters Laboratories, Inc. (UL) in the United
representatives that develops technical standards (including States. A CSA-certified product has been type-tested and
safety standards). These standards comprise a consensus approved by the Canadian Standards Association as meeting
from a variety of industries on good practice and design. electrical and safety codes.
ANSI standards relevant to application of safety products
include the ANSI B11 Series, and ANSI/RIA R15.06. See Defined Area: the “screen of light” generated between the
“Safety Standards” on inside back cover. emitter and receiver of a safety light screen system. When the
defined area is interrupted by an opaque object of a specified
Antirepeat: the part of the control system designed to limit cross section, a Trip or Latch condition results.
the machine to a single stroke or cycle if the tripping or
actuating means is held actuated. Designated Person: an individual identified and designated
in writing, by the employer, as being appropriately trained
Auto Power-Up: a safety light screen system feature which, and qualified to perform a specified checkout procedure. (See
when switched ON, enables the system to be powered up Qualified Person.)
(and recover from a power interruption) without requiring a
manual reset. When Auto Power-Up is ON, the safety light Emitter: the light-emitting component of a safety light screen
screen controller automatically begins internal diagnostics system, consisting of a row of synchronized modulated LEDs.
upon power-up, and automatically resets the system if it The emitter, together with the receiver (placed opposite),
passes the diagnostic check. When Auto Power-up is OFF, a creates a “screen of light” called the defined area.
manual reset is required. External Device Monitoring (EDM): a means by which a
Blanking: a programmable feature of a safety light screen safety device (such as a safety light screen) actively monitors
system which allows the light screen to ignore certain objects the state (or status) of external devices that may be controlled
located within the defined area. See fixed blanking, Floating by the safety device. A lockout of the safety device will result
Blanking, and Reduced Resolution. if an unsafe state is detected in the external device. External
device(s) may include, but are not limited to: MPCEs, captive
Blocked Condition: A safety light screen condition, when an contact relays/contactors, and safety modules.
opaque object of sufficient size blocks/interrupts one or more
light screen beams. When a Blocked condition occurs, OSSD1 Failure to Danger: a failure which delays or prevents a
and OSSD2 outputs simultaneously turn off within the system machine safety system from arresting dangerous machine
response time. motion.
Brake: a mechanism for stopping or preventing motion. Final Switching Device (FSD): the component of the machine’s
safety-related control system that interrupts the circuit to the
Cascade: Series connection (or “daisy-chaining”) of multiple machine primary control element (MPCE) when the output
emitters and receivers. signal switching device (OSSD) goes to the OFF-state.
CE: “Conformité Européenne” (French translation of Fixed Blanking: a programming feature that allows a safety
“European Conformity”). The CE mark on a product or light screen system to ignore objects (such as brackets or
machine establishes its compliance with all relevant European fixtures) which will always be present at a specific location
Union (EU) Directives and the associated safety standards. within the defined area. The presence of these objects will
not cause the system’s safety outputs (e.g., Final Switching
Clutch: a mechanism that, when engaged, transmits torque to
Devices) to trip or latch. If any fixed objects are moved within
impart motion from a driving member to a driven member.
or removed from the defined area, a Lockout condition results.
Control Reliability: A method of ensuring the performance
Floating Blanking: see Reduced Resolution.
integrity of a control system. Control circuits are designed
and constructed so that a single failure or fault within the FMEA (Failure Mode and Effect Analysis): a testing
system does not prevent the normal stopping action from procedure by which potential failure modes in a system are
being applied to the machine when required, or does not analyzed to determine their results or effects on the system.
create unintended machine action, but does prevent initiation Component failure modes that produce either no effect or
of successive machine action until the failure is corrected. a Lockout condition are permitted; failures which cause an
unsafe condition (a failure to danger) are not. Banner safety
products are extensively FMEA tested.
Banner Engineering Corp. • Minneapolis, U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
60 P/N 112852 rev. C
EZ-SCREEN
Instruction Manual
Glossary of Terms
Forced-Guided Contacts: relay contacts that are mechanically Machine Primary Control Element (MPCE): an electrically-
linked, so that when the relay coil is energized or de- powered element, external to the safety system, which directly
energized, all of the linked contacts move together. If one controls the machine’s normal operating motion in such a
set of contacts in the relay becomes immobilized, no other way that the element is last (in time) to operate when machine
contact of the same relay will be able to move. The function of motion is either initiated or arrested.
forced-guided contacts is to enable the safety circuit to check Machine Response Time: the time between the activation of a
the status of the relay. Forced-guided contacts are also known machine stopping device and the instant when the dangerous
as “positive-guided contacts,” “captive contacts,” “locked parts of the machine reach a safe state by being brought to
contacts,” or “safety relays.” rest.
Full-Revolution Devices: a method of machine drive arranged Minimum Object Sensitivity (MOS): the minimum-diameter
such that, once started, the machine can be stopped only object that a safety light screen system can reliably detect.
when the full cycle is complete. Examples include positive key Objects of this diameter or greater will be detected anywhere
clutches and similar mechanisms. Banner safety light screen in the defined area. A smaller object can pass undetected
systems may not be used with full-revolution devices. through the light if it passes exactly midway between two
Guarded Machine: The machine whose point of operation is adjacent light beams. Also known as MODS (Minimum Object
guarded by the safety light screen system. Detection Size). See also Specified Test Piece.
Hard Guard: screens, bars, or other mechanical barriers Muting: the automatic suspension of the safeguarding
affixed to the frame of the machine intended to prevent entry function of a safety device during a non-hazardous portion of
by personnel into the hazardous area(s) of a machine, while the machine cycle.
allowing the point of operation to be viewed. The maximum OFF State: The state in which the output circuit is interrupted
size of openings is determined by the applicable standard, and does not permit the flow of current.
such as Table O-10 of OSHA 29CFR1910.217, also called a
“fixed barrier guard.” ON State: The state in which the output circuit is complete
and permits the flow of current.
Hazardous Area: an area that poses an immediate or
impending physical hazard. OSHA (Occupational Safety and Health Administration): a
U.S. Federal agency, Division of the U.S. Department of Labor,
Hazard Point: the closest reachable point of the hazardous that is responsible for the regulation of workplace safety.
area.
OSSD: Output Signal Switching Device. The safety outputs
Internal Lockout: a Lockout condition that is due to an that are used to initiate a stop signal.
internal safety system problem. Generally, indicated by the red
Status indicator LED (only) flashing. Requires the attention of Part-Revolution Clutch: a type of clutch that may be engaged
a Qualified Person. or disengaged during the machine cycle. Part-revolution
clutched machines use a clutch/brake mechanism, which can
Key Reset (Manual Reset): a key-operated switch used to arrest machine motion at any point in the stroke or cycle.
reset a safety light screen system to the ON state following a
Lockout condition. Also refers to the act of using the switch Pass-Through Hazard: A situation that may exist when
to reset a safety system from a Latch condition. personnel pass through a safeguard (at which point the
hazard stops or is removed), and then continue into the
Latch Condition: the response of the Safety Outputs (e.g., guarded area. At this point the safeguard may not be able to
OSSDs) of a safety light screen system when an object equal prevent an unexpected start or restart of the machine with
to or greater than the diameter of the specified test piece personnel within the guarded area.
enters the defined area. In a Latch condition, safety outputs
simultaneously de-energize and open their contacts. The Point of Operation: the location of a machine where material
contacts are held (latched) open until the object is removed or a workpiece is positioned and a machine function is
from the defined area and a manual reset is performed. A performed upon it.
latching output is used most often in perimeter guarding Point-of-Operation Guarding: safeguards, such as hard
applications. (See Trip Condition.) guards or safety light screens, which are designed to protect
Lockout Condition: a safety light screen system condition that personnel from hazardous machine motion when close to the
is automatically attained in response to certain failure signals machine’s point of operation.
(an internal lockout). When a Lockout condition occurs, the Power-Up/Power-Interrupt Lockout: a Lockout condition of
safety light screen system’s safety outputs turn OFF, and a a safety light screen system that, if Auto Power-up is OFF,
manual reset is required to return the system to RUN mode. occurs when the system is powered up (including power-
Machine Operator: an individual who performs production ups after a loss of power). Requires a manual reset by a
work and who controls operation of the machine. Designated Person.
PSDI (Presence-Sensing Device Initiation): an application Separation Distance (Safety Light Screen): the minimum
in which a presence-sensing device is used to actually start distance required to allow the machine’s hazardous motion
the cycle of a machine. In a typical situation, an operator to stop completely, before a hand (or other object) can reach
manually positions a part in the machine for the operation. the nearest hazard point. Measured from the midpoint of the
When the operator moves out of the danger area, the defined area to the nearest hazard point. Factors that influence
presence-sensing device starts the machine (no start switch minimum separation distance include the machine stop time,
is used). The machine cycle runs to completion, and the the light screen system response time, and the light screen
operator can then insert a new part and start another cycle. minimum object detection size.
The presence-sensing device continually guards the machine.
Single-Stroke Press: See full-revolution devices.
Single-break mode is used when the part is automatically
ejected after the machine operation. Double-break mode is Single-Cycle Machine: a machine which is limited by anti-
used when the part is both inserted (to begin the operation) repeat control to one complete work-performing cycle for
and removed (after the operation) by the operator. PSDI is each machine actuation, even if the actuator is continuously
commonly confused with “Trip Initiate.” PSDI is defined in operated.
OSHA CFR1910.217. Banner safety light screen systems may
not be used as PSDI devices on mechanical power presses, Specified Test Piece: an opaque object of sufficient size used
per OSHA regulation 29 CFR 1910.217. to block a light beam to test the operation of a safety light
screen system. When inserted into any part of the defined
Qualified Person: an individual who, by possession of a area, it will place a system into a Trip or Latch condition.
recognized degree or certificate of professional training, Banner supplies specified test pieces with each system. See
or by extensive knowledge, training, and experience, has also Minimum Object Sensitivity.
successfully demonstrated the ability to solve problems
relating to the subject matter and work. (See Designated Supplemental Guarding: additional safeguarding device(s) or
Person.) hard guarding, used to prevent a person from reaching over,
under, through or around the primary safeguard or otherwise
Receiver: the light-receiving component of a safety light accessing the guarded hazard.
screen system, consisting of a row of synchronized
phototransistors. The receiver, together with the emitter Test Piece: an opaque object of sufficient size used to block a
(placed opposite), creates a “screen of light” called the light beam to test the operation of a safety light screen system.
defined area. Trip Condition: the response of the safety outputs (e.g.,
Reduced Resolution: a feature that allows a safety light OSSDs) of a safety light screen system when an object
screen system to be configured to produce an intentionally equal to or greater than the diameter of the specified test
disabled light beam(s) within the light screen, which increases piece enters the defined area. In a Trip condition, the OSSDs
the minimum object sensitivity. The disabled beam(s) appears simultaneously de-energize. A Trip condition clears (resets)
to move up and down (“float”) in order to allow the feeding automatically when the object is removed from the defined
of an object through the defined area at any point without area. (See Latch Condition.)
tripping the safety outputs (e.g., OSSDs) and causing a Trip Trip Initiate: the resetting of a safeguard causing the initiation
or Latch condition. Sometimes called “Floating Blanking.” of machine motion or operation. Trip Initiate is not allowed
Reset: The use of a manually operated switch to restore as a means to initiate a machine cycle per NFPA 79 and ISO
the safety outputs to the ON state from a lockout or a Latch 60204-1, and is commonly confused with PSDI.
condition. TUV (Technischer Überwachungsverein): independent testing
Resolution: See Minimum Object Sensitivity. and certification organization providing EMC and product
safety testing, certification, and quality management systems
Self-Checking (Circuitry): a circuit with the capability registration.
to electronically verify that all of its own critical circuit
components, along with their redundant backups, are UL (Underwriters Laboratory): a third-party organization that
operating properly. Banner safety light screen systems and tests products for compliance with appropriate standards,
safety modules are self-checking. electrical codes, and safety codes. Compliance is indicated by
the UL listing mark on the product.
RIA Documents
Robotics Industries Association (RIA)
900 Victors Way, P.O. Box 3724 OSHA Regulations
Ann Arbor, MI 48106
Tel: (734) 994-6088 OSHA Documents listed are part of: OSHA 29 CFR 1910.147 The Control of
http://www.robotics.org Code of Federal Regulations Title 29, Parts Hazardous Energy (lockout/tagout)
1900 to 1910 OSHA 29 CFR 1910.217 (Guarding of)
NFPA Documents
National Fire Protection Association OSHA 29 CFR 1910.212 General Require- Mechanical Power Presses
1 Batterymarch Park ments for (Guarding of) All Machines
P.O. Box 9101
Quincy, MA 02269-9101
Tel: (800) 344-3555
http://www.nfpa.org
International/European Standards
Alternate sources for these, plus
ISO/TR 12100-1 & -2 (EN 292-1 & -2) ISO 14121 (EN 1050) Principles of Risk
ISO, IEC, EN, DIN, & BS Standards: Safety of Machinery – Basic Concepts, Assessment
Global Engineering Documents General Principles for Design ISO 14119 (EN 1088) Interlocking
15 Inverness Way East ISO 13852 (EN 294) Safety Distances Devices Associated with Guards
Englewood, CO 80112-5704 . . . Upper Limbs – Principles for Design and Selection
Tel: (800) 854-7179 IEC/EN 60204-1 Electrical Equipment of
ISO 13850 (EN 418) Emergency Stop
http://www.global.ihs.com Machines Part 1: General Requirements
Devices, Functional Aspects – Principles
for Design IEC/EN 61496 Electro-sensitive Protection
National Standards Systems Network
(NSSN) ISO/DIS 13851 (EN 574) Two-Hand Equipment
25 West 43rd Street Control Devices – Functional Aspects IEC 60529 Degrees of Protection Provided
New York, NY 10036 – Principles for Design by Enclosures
Tel: (212) 642-4980 ISO 13853 (prEN 811) Safety Distances
http://www.nssn.com
IEC/EN 60947-5-1 Low Voltage
. . . Lower Limbs Switchgear – Electromechanical Control
Document Center, Inc. ISO 13849 (EN 954-1) Safety-Related Circuit Devices
111 Industrial Road, Suite 9 Parts of Control Systems IEC/EN 60947-1 Low Voltage Switchgear
Belmont, CA 94002 ISO/DIS 13855 (EN 999) The Positioning – General Rules
Tel: (650) 591-7600 of Protective Equipment in Respect to
http://www.document-center.com Approach Speeds of Parts of the Human
Body
WARRANTY: Banner Engineering Corp. warrants its products to be free from defects for one year. Banner Engineering Corp. will repair
or replace, free of charge, any product of its manufacture found to be defective at the time it is returned to the factory during the warranty
period. This warranty does not cover damage or liability for the improper application of Banner products. This warranty is in lieu of any
other warranty either expressed or implied.
Banner Engineering Corp., 9714 Tenth Ave. No., Mpls., MN 55441 • Ph: 763.544.3164 • www.bannerengineering.com • Email: sensors@bannerengineering.com