Honeywell SYA14 Series User manual

107031-23 EN FR26 GLO 1199 Printed in France
English
SYA14, SYA30 and SYA60 Series
Safety Light Curtains
IMPROPER INSTALLATION
•Consult with US and/or European safety agencies and
their requirements when designing a machine control
link, interface and all control elements that affect
safety.
•Strictly adhere to all installation instructions.
Failure to comply with these instructions could
result in death or serious injury.

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107031-23 EN FR26 GLO 1199 Printed in France 3
Table of contents
1. IMPORTANT INFORMATION...............................................................................7
1.1 Overview .........................................................................................................7
1.2 Organization of Installation Manual.................................................................7
1.3 Important Highlighted Information ...................................................................7
1.4 Control Reliability.............................................................................................8
1.5 Approvals.........................................................................................................8
1.6 Safety Light curtain Installation and Use.........................................................9
1.7 European Directives Compliance....................................................................9
1.8 European Standards Compliance....................................................................9
1.9 United States Regulations Compliance.........................................................10
1.10 United States Standards Compliance............................................................11
1.11 Additional Protection......................................................................................11
2. DESCRIPTION AND OPERATION.....................................................................13
2.1 Overview .......................................................................................................13
2.2 Machine Guarding and Perimeter Protection ................................................13
2.3 Approval and rating plates.............................................................................16
2.4 Operation.......................................................................................................17
2.4.1 Synchronization ......................................................................................17
2.4.2 Resolution...............................................................................................17
2.4.3 Protection Height ....................................................................................18
2.4.4 Response Times.....................................................................................18
2.4.5 Scanning Ranges....................................................................................19
2.5 Indicators.......................................................................................................20
2.5.1 Scanning range indicators (emitter)........................................................20
2.5.2 Alarm indicator (emitter)..........................................................................20
2.5.3 Test Indicator (emitter)............................................................................21
2.5.4 Operation Indicators (receiver) ...............................................................21
2.5.5 Signal Strength Indicator (receiver) ........................................................22
2.5.6 Cross-talk indicator (receiver).................................................................22
2.6 Mirrors...........................................................................................................22
2.6.1 Scanning Range with Mirrors FF-SBSMIR ... Series..............................22
2.6.2 Scanning Range with Mirrors FF-SLC ... MIR Series .............................23
2.7 Specifications ................................................................................................25
3. INSTALLATION...................................................................................................27
3.1 Overview .......................................................................................................27
3.2 Point-of-operation Guarding..........................................................................28
3.3 How to Calculate Safety Distance.................................................................28
3.3.1 European pr EN 999 standard................................................................29

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3.3.2 US ANSI standard..................................................................................30
3.3.2.1 Sample Calculation (Point-of-operation guarding).....................................31
3.3.2.2 Sample Calculation (Perimeter guarding)...................................................31
3.4 How to Calculate Minimum Distance Considering Reflective Surfaces.........31
3.5 Mutual Interference or Cross-talk..................................................................33
3.6 Emitter and Receiver Dimensions / Weights .................................................34
3.7 Mounting Considerations...............................................................................36
3.7.1 Optical Alignment....................................................................................36
3.7.2 Vertical Mounting ....................................................................................36
3.7.3 Vertical Mounting / Linear Assembly.......................................................38
3.7.4 Vertical Mounting / Side by Side Installation...........................................39
3.7.5 Horizontal mounting................................................................................40
3.7.6 Diagonal and Right-Angle Mounting .......................................................41
3.8 Mounting Hardware.......................................................................................42
3.8.1 T-slot Mounting System ..........................................................................42
3.8.2 Mounting Accessory Set .........................................................................43
3.8.3 Mounting Brackets ..................................................................................44
3.8.4 Mounting the Mirrors...............................................................................45
4. ELECTRICAL CONNECTIONS...........................................................................47
4.1 Overview........................................................................................................47
4.2 Connector Wiring for the FF-SYAqqqqqC2 light curtains........................47
4.3 Connector wiring for the FF-SYAqqqqqQ2 light curtains ........................49
4.4 Power Wiring (emitter and receiver teminals 1 and 2)...................................49
4.5 Machine Stop contacts (Receiver terminals 4 and 5)....................................52
4.5.1 Permanent Self-checking (Monitoring)....................................................52
4.5.2 Protection of Machine Stop Contacts......................................................53
4.5.3 Connection to the machine control circuitry............................................53
4.6 Test Contact (emitter terminals 4 and 5).......................................................55
Wiring Diagrams......................................................................................................56
5. MAINTENANCE AND TROUBLESHOOTING....................................................63
5.1 Overview........................................................................................................63
5.2 Operational Test............................................................................................63
5.3 Troubleshooting Procedures .........................................................................64
5.4 Cleaning ........................................................................................................68
5.4.1 Using a Dry Cloth....................................................................................68
5.4.2 Using Soap and Water............................................................................69
5.4.3 Cleaning the Mirrors................................................................................69
6. ORDER GUIDE....................................................................................................71
6.1 Light Curtain Order Guide .............................................................................71
6.2 Accessories Order Guide ..............................................................................71
6.2.1 Mounting Bracket Kit...............................................................................71
6.2.2 Plugs Kits................................................................................................72

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6.2.3 Test rods.................................................................................................73
6.2.4 Mirrors FF-SBSMIR ... Series (10 % reduction on scanning range)......73
6.2.5 Mirrors FF-SLC ... MIR Series (30 % reduction on scanning range) ......74
6.2.6 Safety control module.............................................................................74
6.2.7 Safety muting interface...........................................................................74
6.2.8 AC to DC power supply...........................................................................75
7. WARRANTY INFORMATION .............................................................................77
7.1 Warranty and Remedy ..................................................................................77
7.2 Sales and Service..........................................................................................77
8. CE DECLARATION OF CONFORMITY .............................................................79
9. INDEX..................................................................................................................81

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107031-23 EN FR26 GLO 1199 Printed in France 7
1. Important Information
1.1 Overview
Thank you for purchasing this Honeywell safety product. This manual contains
description, operation, installation, electrical connections, maintenance and
troubleshooting information related to the FF-SYA Series safety light curtains.
1.2 Organization of Installation Manual
This installation manual has the following sections:
•Important Information contains important highlighted information, the manual’s
organization, control reliability information, approvals, standards, regulations and
directives.
•Description and Operation provides operation and specification information.
•Installation explains how to properly install safety light curtains.
•Connections and Setup covers electrical installation, interfacing and setup
procedures.
•Inspection and Maintenance contains inspection, maintenance, and indicator status
information.
•Order Guides provide catalog listings of light curtains, accessories, and spare parts.
•Warranty Information provides important contact information related to sales and
service.
•Index contains keywords and their associated pages related to topics found
throughout this manual.
1.3 Important Highlighted Information
Important danger, warning, caution and notices are highlighted throughout the manual as
follows:
A DANGER symbol indicates an imminently hazardous situation which, if not avoided, will
result in death or serious injury.
A WARNING symbol indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.

8107031-23 EN FR26 GLO 1199 Printed in France
A CAUTION symbol indicates a potentially hazardous situation which, if not avoided, may
result in property damage.
A NOTICE symbol indicates important information that must be remembered and aids in
job performance.
1.4 Control Reliability
“Control Reliability” means that, “the device, system or interface shall be designed,
constructed and installed such that a single component failure within the device, interface
or system shall not prevent normal stopping action from taking place but shall prevent a
successive machine cycle.” (ANSI B11.19-1990, 5.5)
OSHA 29 CFR 1910.217 states that, “the control system shall be constructed so that a
failure within the system does not prevent the normal stopping action from being applied
to the press when required, but does prevent initiation of a successive stroke until the
failure is corrected. The failure shall be detectable by a simple test, or indicated by the
control system.”
Honeywell has developed a self-checking technique that combines reliability with safety.
The FF-SYA Series safety light curtain functions with dual channel redundancy and
positive self-check monitoring. This means that a faulty component in our product will
make the safety light curtain fail in a safe mode.
This design meets the highest safety requirements (type 4) described in the IEC/EN
61496-1 and IEC/pr EN 61496-2 norms. Type 4 devices are designed and manufactured
in such a way that a single breakdown or an accumulation of failures does not lead to the
loss of the safety function when a dangerous situation arises. The safety function is
maintained on a permanent basis.
1.5 Approvals
Approvals Description
CE
Compliance with the EN 61496 -
parts 1 & 2 Standards for type 4
Electrosensitive Protective
Equipment
Only the packaging and the documentation of FF-
SYA Series products carry the CE mark; the CE
declaration of conformity is at the back of this
manual
CSAcus Canadian Standards Association

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1.6 Safety Light curtain Installation and Use
Installation and use of this product must be performed by a qualified person thoroughly
familiar with all instructions contained within this manual and all applicable safety
regulations including those described below.
1.7 European Directives Compliance
Directives Number
Machine Directive 98/37/EEC
Low Voltage Directive 73/23 EEC
Electromagnetic Compatibility Directive 89/336 EEC
The EC type examination certificate granted by the French Institut National de la
Recherche et de la Sécurité (INRS) guarantees the conformity of the product with respect
to the essential requirements of the Machinery Directive 98/37/EEC. To complete the EC
type examination, further tests have been carried out by external laboratories to
guarantee the conformity of the product with respect to the Low Voltage 73/23 EEC and
the Electromagnetic Compatibility 89/336 EEC.
An EC declaration of conformity will be found at the back of this manual.
1.8 European Standards Compliance
•The FF-SYA Series safety light curtain complies with the following European
standards:
Regulation Title
EN 292 Safety of Machinery - Basic concepts, general principles for
design
EN 60204 - 1 Safety of Machinery - Electrical equipment of machines
EN 954 - 1 Safety of Machinery - Safety related parts of control systems
IEC/EN 61496 - 1 Safety of Machinery - Electrosensitive protective equipment - part
1: General requirements and tests
IEC/pr EN 61496-2 Safety of Machinery - Electrosensitive protective equipment - part
2: Active optoelectronic Protective Devices

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•Installation and use of the FF-SYA light curtain must comply with the following
applicable European standards (non exhaustive list):
Regulation Title
EN 292 Safety of Machinery - Basic concepts, general principles for design
EN 60204 - 1 Safety of Machinery - Electrical equipment of machines
EN 954 - 1 Safety of Machinery - Safety related parts of control systems
IEC/EN 61496-1 Safety of Machinery - Electrosensitive protective equipment - part 1:
General requirements and tests
IEC/pr EN 61496-2 Safety of Machinery - Electrosensitive protective equipment - part 2:
Active optoelectronic Protective Devices
Pr EN 999 Safety of Machinery - The positioning of protective equipment in
respect of approach speeds of parts of the human body
EN 294 Safety of Machinery - Safety distances to prevent danger zones from
being reached by the upper limbs
Pr EN 811 Safety of Machinery - Safety distances to prevent danger zones from
being reached by the lower limbs
pr EN 692 « Machine-tool - Safety - Mechanical Presses »
pr EN 693 « Machine-tool - Safety - Hydraulic Presses »
pr EN 12622 « Hydraulic press brakes - Safety »
pr EN 201 « Injection plastic moulding machines »
pr EN 289 « Compression moulding and transfer machines »
pr EN 11553 « Laser for material processing »
EN 775 « Manipulating Industrial Robots »
EN 415-1 « Safety of packaging machines - Part 1: Common requirements »
EN 415-2 « Safety of packaging machines - Part 2: Preformed rigid container
packaging machinery »
EN 415-3 « Safety of packaging machines - Part 3: Form, fill and seal machines »
EN 415-4 « Safety of packaging machines - Part 4: palletisers and depalletisers »
1.9 United States Regulations Compliance
US Regulation Title
OSHA 29 CFR 1910.212 General Requirements for (guarding of) All Machines
OSHA 29 CFR 1910.217 (Guarding of) Mechanical Power Presses
•Safety light curtains may be used as primary protection for machines where the
movement of the functional parts can be interrupted at any moment in a dangerous
phase.
•Safety light curtains may be used as primary protection for machines on which the
control circuit has been designed in such a manner that a fault in one component
does not result in any risk.
•Cancellation of the safety light curtain stop signal must not cause the restart of the
moving parts. The function to restart can only be initiated by means of a control
designed for this purpose.

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1.10 United States Standards Compliance
•Installation and use of the FF-SYA light curtain must comply with the following
applicable American standards (non exhaustive list) :
Standards Title
ANSI B11.1 Mechanical Power Presses
ANSI B11.2 Hydraulic Power Presses
ANSI B11.19 Safeguarding when Referenced by the Other B11 Machine
Tool Safety Standards
ANSI/RIA R15.06 Safety Requirements for Industrial Robots and Robot Systems
1.11 Additional Protection
In some applications, it may be necessary to provide additional protection to maintain the
protection level provided by the safety light curtain. Hard guards or additional presence
sensing devices such as safety mats or laser scanner, may be used to ensure the
operator is either forced to move through the sensing field to enter the danger zone, or
forced to stand on the sensing area inside the danger zone.
Hard guards should be installed permanently with the aid of a tool or welded (if possible).
If hard guards need to be automatically positioned, their positioning must be checked. It
must not be possible for operators to neutralize the detectors associated with these hard
guards. Hard guards shall comply with the following applicable European Standards:
Standards Title
Pr EN 953 Safety of Machinery - General requirements for the design and
construction of guards
EN 294 Safety of Machinery - Safety distances to prevent danger
zones from being reached by the upper limbs
pr EN 811 Safety of Machinery - Safety distances to prevent danger
zones from being reached by the lower limbs
EN 1088 Safety of Machinery - Interlocking devices with and without
guard locking
EN 954-1 Safety of Machinery - Safety related parts of control system
Honeywell FF-SR Series safety control modules may be used as an interface between
protective safety equipment and machine control circuitry. The following safety control
modules are particularly recommended:
•FF-SRS: safety control module designed for emergency stop
•FF-SRD Series: safety control module designed for door monitoring
•FF-SR2: safety relay control module designed for two-hand controls
•FF-SR0 Series: safety control module designed for standstill detection on inductive
motors
•FF-SRT Series: time delay module
•FF-SRE Series: expansion relay module

12 107031-23 EN FR26 GLO 1199 Printed in France
They offer redundancy, monitoring, and control reliability features that ensure the highest
level of industrial safety.
Honeywell safety switches and sensors that may be used to check the position of guards
include:
•50FY and 40FY Hall effect safety sensors
•GSS safety limit switches
•GK and GKM key operated safety switches
•GKR/L solenoid key operated safety interlock switches
•24/924CE miniature safety limit switch
Honeywell safety optoelectronic products that may be used with the FF-SYA Series safety
light curtain include:
•FF-SM safety mat
•FF-SE laser scanner
•FF-SPS4 single beam safety device
•FF-SCAN modular safety ligth curtain

107031-23 EN FR26 GLO 1199 Printed in France 13
2. Description and Operation
2.1 Overview
This chapter contains terms and concepts related to safety and the application of the FF-
SYA Series light curtain. The importance of the installer’s role in the set-up and
installation of the machine guarding systems is discussed. The section also contains
specification and order guide information.
2.2 Machine Guarding and Perimeter Protection
FF-SYA14 and FF-SYA30 Series thru-scan light curtains are non-contact machine
guarding devices designed to increase the protection of operators of power driven
machinery (see Figure 2-1). The FF-SYA60 Series light curtain is designed for access
control of dangerous areas.
IMPROPER INSTALLATION OF FF-SYA SERIES LIGHT CURTAIN
•Install FF-SYA light curtains in accordance with this installation manual and applicable
local safety regulations (OSHA, ANSI, European standards).
•Allow entry into protected area by interruption of sensing field of the safety light curtain
or activation of other safeguarding device only.
Failure to comply with these instructions could result in death or serious injury.
FF-SYA Series light curtains generate a stop signal if the sensing field is interrupted.
Further operation is prevented until the sensing field is cleared. The FF-SYA Series light
curtain monitors itself continuously for component failures, misalignments, and dirt
accumulations. Small misalignments or dirt accumulation are indicated by a flashing LED.
If misalignment or dirt accumulations become too great or a component fails, a stop signal
is generated. Operation is prevented until the condition is corrected.
IMPROPER SYSTEM PERFORMANCE
•Comply with local safety requirements when designing machine control link, interface
and all control elements that affect safety.
•Install two independent safety relay contacts into machine control stop circuit controlled
by FF-SYA Series light curtain.
•Ensure two independent stop circuit relays have mechanically linked contacts to reliably
detect a welded contact.
•Using the FF-SRS59392 safety control module will provide fail-safe contacts to the
machine control stop circuit.
Failure to comply with these instructions could result in death or serious injury.

14 107031-23 EN FR26 GLO 1199 Printed in France
FF-SYA14, FF-SYA30 and FF-SYA60 Series light curtains are designed so a malfunction
or an interruption of the sensing field will immediatly cause the light curtain to generate a
stop signal. This stop signal will be generated automatically if a malfunction occurs in the
light curtain. All other machine control components that affect safety should also be
designed to the same high level of operation.
IMPROPER MACHINE REACTION
•Ensure the machine control is capable of stopping the machine at any point in the
cycle.
•Ensure that a loss of power does NOT impair stopping action of machine.
Failure to comply with these instructions could result in death or serious injury.
Figure 2-1 Point-of-operation Guarding (use FF-SYA14 and FF-SYA30 only)
Point-of-operation is defined as that area where a machine performs work (such as
cutting, shaping, boring, or forming) on a material.
FULL REVOLUTION MECHANICAL POWER PRESSES CANNOT BE STOPPED IN
MID-STROKE (OSHA 29CFR 1910.217). Do NOT use FF-SYA Series light curtains on
full revolution mechanical power presses.
Failure to comply with these instructions will result in death or serious injury.
For point-of-operation guarding, the light curtain(s) and any mechanical guards should be
installed so no one can stand between the light curtain and the danger zone. This may
require additional hard guarding, horizontal or angled positioning of the light curtain, or
additional light curtains.
Mechanical guarding Mechanical guarding Mechanical guarding
Operator enters danger zone
under the light curtain Operator enters danger zone above the light curtain
FiSYA1

107031-23 EN FR26 GLO 1199 Printed in France 15
Figure 2-2 Point-of-operation Guarding (use FF-SYA14 and FF-SYA30 only)
IMPROPER POINT-OF-OPERATION PROTECTION
Do NOT use FF-SYA60 Series light curtains in point-of-operation applications.
Failure to comply with these instructions will result in death or serious injury.
Figure 2-3 Perimeter Guarding (use the FF-SYA light curtain and the FF-SB or FF-SLC
mirrors)
IMPROPER PERIMETER PROTECTION ACTIVATION
•Design control circuit that requires a manual restart before further machine operation
can occur.
•Locate manual restart to allow operator a clear view of danger zone.
•Operator must NOT be able to reach manual restart from within danger zone.
•Design control circuit to prevent Programmable Logic Controller from overriding manual
restart.
Failure to comply with these instructions could result in death or serious injury.
Mechanical guarding
Mechanical guarding
Mechanical guarding
Operator is undetected between the
light curtain and dangerous area
Right-angle mounting of two light
curtains prevents undetected
presence inside dangerous area
Light curtain mounted in an angled
position prevents undetected
presence inside the dangerous
area
FSYA2
FSYA3

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2.3 Approval and rating plates
Figure 2-4 Rating plate
NSR Nominal Scanning Range IOutput Switching Capacity
PH Protection Height Type Product Part Number
RResolution N° Serial number and date code
(month/year)
VSupply Voltage (power consumption) SSealing
TResponse time LLoads specifications (max.
impedance and min turn-on
voltage)
Figure 2-5 Approvals plate
INRS
Type 4 ESPE
EN 61496-1 &
pr EN 61496-2
EC type examination certificate delivered by
Attestation d'examen CE de type délivrée par
EG Baumusterprüfbescheinigung von
NRTL / C
Caution :Tests must be performed to be sure that the FF-SYA series
light curtain and the machine’s control system work properly. These
tests should be performed : daily or after any modification or
maintenance operation (see the users manual).
Attention : Des tests doivent être appliqués afin de s'assurer du
fonctionnement correct de la barrière immatérielle FF-SYA et du
système de contrôle de la machine : quotidiennement et après chaque
modification ou opération de maintenance (se reporter au manuel de
l'utilisateur)
CE Only the packaging and the documentation of FF-SYA Series
products carry the CE mark; the CE declaration of conformity is
at the back of this manual
INRS Institut National de Recherche et de Sécurité (French body
notified for the CE certification of Electrosensitive protective
Equipment)
CSANRTL/C (pending) The Canadian Standard Association has been accredited as a
Nationally Recognized Testing Laboratory (NRTL) by the US
Occupational Safety and Health Administration (OSHA). The
CSA is able to carry out tests according to the Canadian and UL
standards and delivers a single certificate which is valid for both
Canada and the United States.

107031-23 EN FR26 GLO 1199 Printed in France 17
2.4 Operation
The FF-SYA14, FF-SYA30 and FF-SYA60 Series are thru-scan light curtains. Emitters
transmit modulated, infrared light that is detected by photoreceivers in the receiver. The
number of light beams depends on the protected height and resolution of the light curtain.
Figure 2-6 FF-SYA Series Operational Diagram
Sensing range
Protection Height
2.4.1 Synchronization
The emitter and the receiver are optically synchronized. The synchronization is an
effective beam transmitted by the emitter towards the receiver. No connection is
necessary between the emitter and the receiver which simplifies installation and
maintenance.
2.4.2 Resolution
FF-SYA Series light curtain resolution (sometimes called minimum object sensitivity) is
the minimum object size that will interrupt at least one light beam when it enters the
sensing field. Anything entering the sensing field equal to or greater than this minimum
size will be detected. Resolution is not affected by scanning distance or dust
accumulation. For safety reason, the FF-SYA Series does not have a sensitivity
adjustment. Two factors determine the resolution of the light curtain: beam pitch and light
lens diameter (see Figure 2-7). Lens diameter is the smallest width that will block a single
light beam. The combination of the beam diameter and center distance gives the FF-
SYA14 (see Figure 2-6) a resolution of 14 mm (0.6 in.), the FF-SYA30 a resolution
of 30 mm (1.2 in.) and the FF-SYA60 a resolution of 60 mm (2.4 in.).
Sensing range
Protection height
Emitter Receiver
FSYA6

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Figure 2-7 Light Curtain Resolution
beam pitch
P
lens size D
ØR Resolution
Models Resolution R Beam pitch P Lens size D
FF-SYA14 ∅14 / 0.6 10 / 0.4 4 / 0.16
FF-SYA30 ∅30 / 1.2 20 / 0.8 10 / 0.4
FF-SYA60 ∅60 / 2.4 40 / 1.6 10 / 0.4
Dimensions in mm / in.
2.4.3 Protection Height
Protection height is the height from the top of the uppermost light beam to the bottom of
the lowest beam (see Figure 2-6).
2.4.4 Response Times
The response time of FF-SYA Series light curtains is the maximum time it takes the light
curtain to generate a stop signal after the sensing field has been interrupted. See the
table below for response times for individual light curtains.
Model Response Times
number FF-SYA14 FF-SYA30 FF-SYA60
032 14.0 ms 13.5 ms 13.5 ms
048 15.0 ms 14.0 ms 14.0 ms
064 15.5 ms 14.0 ms 14.0 ms
080 17.5 ms 14.5 ms 14.5 ms
096 19.5 ms 15.0 ms 15.0 ms
112 20.5 ms 15.0 ms 15.0 ms
128 22.5 ms 15.5 ms 15.5 ms
144 NA 16.0 ms 16.0 ms
160 NA 17.5 ms 17.5 ms
176 NA 17.5 ms 17.5 ms
NA : Not Available
ØR Resolution
Beam pitch P
Lens size D
FSYA7

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2.4.5 Scanning Ranges
Nominal scanning range is the maximum distance allowed between the emitter and the
receiver. A selector switch is available on the emitter unit for the selection of the adequat
emission power. Refer to the chapter 3.5 Mutual Interference or Cross-talk for correct
adjustment.
The FF-SYA Series light curtains have the following scanning ranges:
Figure 2-8 Scanning Range Diagram
SCANNING RANGE SETTINGS
Product 100% (factory setting) 54 % 42 %
FF-SYA14 0 to 6 m (0 to 20 ft) 0 to 3.25 m
(0 to 10.7 ft) 0 to 2.5 m (0 to 8.3 ft)
FF-SYA30 0.6 to 20 m
(2 to 65 ft) 0.2 to 10.8 m (0.6 to 35 ft) 0 to 8.4 m (0 to 27 ft)
FF-SYA60 0.6 to 20 m
(2 to 65 ft) 0.2 to 10.8 m (0.6 to 35 ft) 0 to 8.4 m (0 to 27 ft)
MINIMUM SCANNING RANGE
Using the light curtain below the specified minimum scanning range will maintain the light
curtain in a lock out condition. To go back to normal conditions of operations, switch the
power off, move away the receiver from the emitter then restaure the power.
FSYA8

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2.5 Indicators
The FF-SYA Series emitters have five LED indicators. The receivers have four LED
indicators. These LED indicators provide important information related to light curtain
status.
Figure 2-9 Emitter Indicators
scanning range indicators
(yellow)
test indicator
(yellow)
alarm indicator
(red)
R1
R2
R3
2.5.1 Scanning range indicators (emitter)
Nominal Scanning Range
(factory setting)
yellow
R3
yellow
R2
yellow
R1
54% of the Nominal
Scanning Range
yellow
R2
yellow
R1
yellow
R3
yellow
R3
yellow
R2
yellow
R1
42% of the Nominal
Scanning Range
The emitter is e
q
uipped with a scannin
g
ran
g
e selector for the control of the infrared
emission power. The scannin
g
ran
g
e indicators are 3
y
ellow indicators which
g
ive an
information on the selected scannin
g
ran
g
e. The maximum emission power
correspondin
g
to the li
g
ht curtain Nominal Scannin
g
Ran
g
e is preset on deliver
y
, and
these 3 LEDs li
g
ht on permanentl
y
. If the Nominal Scannin
g
Ran
g
e NSR is decreased to
54 % or 42 %, then onl
y
2 or 1 LEDs remain permanentl
y
on
(
see chapter 2.4.5 Scannin
g
Ranges).
2.5.2 Alarm indicator (emitter)
red
Alarm
Normal operation
red
Alarm
Emitter failure
The alarm indicator is a red LED which flashes if the emitter is detecting an emission
problem. The receiver is in an alarm state and the emitter needs to be changed for
correct operation. If this LED is off while the receiver is in an alarm state despite the
sensing field is clear, then the receiver may be suspected.
Scanning range indicators
(
y
ellow)
Alarm indicator
(
red
)
Test indicator
(y
ellow
)
FSYA9