Panasonic SF4C-H28, SF4C-H24, SF4C-H32 User guide

sAFETY LIGHT CURTAIN

SF4C

Instruction Manual

BEFORE BEGINNING

The printed English and Japanese versions of this instruction manual are the original versions. The English, French, German, Italian and Spanish versions published in the Internet are

copies of the original documentation and were produced by Panasonic Electric Works Europe AG.

Liability and Copyright for the Hardware

This manual and everything described in it are copyrighted. You may not copy this manual, in whole or part, without written consent of Panasonic Electric Works Europe AG (PEWEU).

PEWEU pursues a policy of continuous improvement of the design and performance of its products. Therefore we reserve the right to change the manual/product without notice. In no event will PEWEU be liable for direct, special, incidental, or consequential damage resulting from any defect in the product or its documentation, even if advised of the possibility of such damages.

We invite your comments on this manual. Please e-mail us at: tech-doc@eu.pewg.panasonic.com. Please direct support matters and technical questions to your local Panasonic representative.

LIMITED WARRANTY

If physical defects caused by distribution are found, PEWEU will replace/repair the product free of charge. Exceptions include:

• When physical defects are due to different usage/treatment of the product other than described in the manual.

• When physical defects are due to defective equipment other than the distributed product.

• When physical defects are due to modifications/repairs by someone other than PEWEU.

• When physical defects are due to natural disasters.

Important Symbols

One or more of the following symbols may be used in this documentation:

DANGER!





CAUTION

Indicates that you should proceed with caution. Failure to do so may result in injury or significant damage to instruments or their contents, e.g. data.

NOTE

Contains important additional information.

EXAMPLE

Contains an illustrative example of the previous text section.

Procedure

The warning triangle indicates especially important safety instructions. If they are not adhered to, the results could be fatal or critical injury.

Indicates that a step-by-step procedure follows.

REFERENCE

Indicates where you can find additional information on the subject at hand.

SF4C Safety light curtain

Table of Contents

1. Introduction ............................................................................1

1.1 Target Group ............................................................................................. 2

1.2 Safety Instructions..................................................................................... 3

1.3 Applicable Standards and Regulations...................................................... 6

2. Before Using this Device .......................................................7

2.1 Confirmation of Packed Contents..............................................................8

2.2 Features..................................................................................................... 9

2.3 Part Description....................................................................................... 10

2.3.1 How the Display Works ............................................................................11

2.3.2 Operation of Large Multi-Purpose Indicator.............................................14

2.4 Protection Area........................................................................................ 15

2.4.1 Sensing Area............................................................................................ 15

2.4.2 Safety Distance ........................................................................................ 16

2.4.2.1 Calculation Example for Europe .....................................................18

2.4.2.2 Calculation Example for US ............................................................20

2.4.3 Influence of Reflective Surface ................................................................22

2.4.4 Device Placement ....................................................................................22

2.5 Mounting .................................................................................................. 25

2.5.1 Mounting with Standard Mounting Bracket .............................................. 25

2.5.2 Mounting with Multifunctional Mounting Bracket MS-SFC-3 (optional) ...26

2.5.3 Dead Zoneless Mounting .........................................................................28

2.5.4 Mounting the Intermediate Supporting Bracket MS-SFC-4 .....................31

2.5.5 Mounting the Protective Metal Case ........................................................ 32

iii

Table of Contents

SF4C Safety light curtain

2.6 Wiring .......................................................................................................34

2.6.1 Power Supply Unit....................................................................................34

2.6.2 PNP Output ..............................................................................................36

2.6.3 NPN Output ..............................................................................................38

2.6.4 Output Signal during Self-Diagnosis ........................................................39

2.6.5 Connecting Procedure and Pin Assignment ............................................40

2.6.6 Basic Wiring .............................................................................................42

2.7 Wiring Examples ......................................................................................44

2.7.1 Manual Reset When Interlock is Active....................................................44

2.7.2 Auto-Reset When Interlock is Inactive (Control Category 4) ...................45

2.7.3 Active Safety Input Function (Control Category 4)...................................47

2.7.4 Inactive External Device Monitor Function (Control Category 4).............49

2.7.5 Active Muting Function (Control Category 4) ...........................................51

2.7.6 Beam-axis Alignment ...............................................................................54

2.7.7 Operation Test..........................................................................................56

3. Functions.............................................................................. 59

3.1 Self-Diagnosis Function ...........................................................................60

3.2 Interlock Function .....................................................................................61

3.3 Test Input Function...................................................................................62

3.4 Safety Input Function ...............................................................................63

3.4.1 Serial Connection and Response Time....................................................64

3.4.2 Wiring Example for Safety Contact ..........................................................65

3.4.3 Wiring Example for Safety Sensor ...........................................................66

3.5 Large Multi-purpose Indicator Function....................................................70

3.5.1 Wiring Example of the Large Multi-Purpose Indicator..............................70

3.6 Auxiliary Output (Non-Safety Output).......................................................72

3.7 External Device Monitor Function ............................................................73

3.8 Muting Function........................................................................................75

3.8.1 Specification for the Muting Sensor .........................................................76

SF4C Safety light curtain

3.8.2 Installation of the Muting Sensor.............................................................. 77

3.8.3 Installation Only for the Exit of the Object................................................79

Table of Contents

3.9 Override Function .................................................................................... 81

3.10 Functions of the Optional Handy Controller SFC-HC .............................. 84

4. Operation ..............................................................................87

4.1 Normal Operation .................................................................................... 88

4.2 Using the Test Input Function.................................................................. 90

4.3 When an Error Occurs ............................................................................. 92

4.4 Using the Muting Input Function .............................................................. 93

4.5 Using the Safety Input Function............................................................... 95

5. Maintenance..........................................................................97

5.1 Daily Inspection List................................................................................. 98

5.2 Periodic Inspection Checklist (Every Six Months) ................................. 100

5.3 Inspection after Maintenance................................................................. 101

6. Troubleshooting .................................................................103

6.1 Emitter-Related Problems...................................................................... 104

6.1.1 Indicator Section of the Emitter.............................................................. 104

6.1.2 All Indicators Are OFF............................................................................104

6.1.3 Digital Error Indicator (Red) Lights Up or Blinks .................................... 104

6.1.4 Setting Indicator Lights Up..................................................................... 106

6.1.5 Test input Indicator (Orange) Lights Up................................................. 106

6.1.6 Operation Indicator Remains Lit in Red ................................................. 106

6.2 Receiver-Related Problems................................................................... 107

6.2.1 Indicator Section of the Receiver ...........................................................107

Table of Contents

6.2.2 All Indicators Are OFF ............................................................................107

6.2.3 Setting Indicator "C" Lights Up...............................................................107

6.2.4 Fault Indicator (Yellow) Lights up or Blinks............................................108

SF4C Safety light curtain

7. Specifications and Dimensions ........................................ 111

7.1 Specifications by Model Numbers ..........................................................112

7.1.1 Model Numbers SF4C-Hxx<V2> with 20mm Beam Pitch......................112

7.1.2 Model Numbers SF4C-Hxx with Pigtailed Type.....................................113

7.2 Common Specifications..........................................................................114

7.3 Options ...................................................................................................117

7.3.1 Cables ....................................................................................................117

7.3.1.1 Extension Cable with Connector on One End...............................117

7.3.1.2 Extension Cable with Connectors on Both Ends ..........................117

7.3.1.3 Y-Type Connector .........................................................................118

7.3.2 Brackets..................................................................................................118

7.3.2.1 Standard Mounting Bracket MS-SFC-1.........................................118

7.3.2.2 NA2_N Compatible Mounting Bracket ..........................................118

7.3.2.3 Multifunctional Mounting Bracket MS-SFC-3 ................................ 119

7.3.2.4 Mounting Bracket MS-SFC-4 ........................................................119

7.3.3 Protective Metal Case ............................................................................120

7.3.4 Handy Controller ....................................................................................120

7.3.5 Test Rod.................................................................................................121

8. Dimensions......................................................................... 123

8.1 Mounting Dimensions.............................................................................124

8.1.1 Centered Mounting with Standard Mounting Brackets...........................124

8.1.2 Standard Mounting Bracket without Dead Space ..................................125

8.1.3 Multifunctional Mounting Bracket ...........................................................126

8.1.4 Multifunctional Mounting Bracket without dead zone.............................127

8.1.5 Mounting of the Protective Metal Case ..................................................128

SF4C Safety light curtain

Table of Contents

8.2 Mounting Brackets ................................................................................. 129

8.2.1 Standard Mounting Bracket MS-SFC-1 .................................................129

8.2.2 Mounting Bracket MS-SFC-2 ................................................................. 129

8.2.3 Multifunctional Mounting Bracket MS-SFC-3......................................... 130

8.2.4 Multifunctional Mounting Bracket MS-SFC-3 (without Dead Zone) ...... 130

8.2.5 Multifunctional Intermediate Supporting Bracket MS-SFC-4 ................. 131

8.2.6 Protective Metal Case ............................................................................ 131

9. Glossary of Terms..............................................................133

10. Index ...................................................................................135

vii

Chapter 1

Introduction

SF4C Safety light curtain

1.1 Target Group

Thank you for purchasing the Safety Light Curtain from the SF4C series. Please read this instruction manual carefully and thoroughly for the correct and optimum use of this product. Kindly keep this manual in a convenient place for quick reference.

The SF4C is a light curtain for protecting a person from dangerous parts of a machine which can cause injury or accident.

This manual has been written for the following personnel who:

• have undergone suitable training and have knowledge of light curtains as well as safety systems and standards.

• who are responsible for the introduction of this device

• who design systems using the SF4C

• who install and connect the SF4C

• who manage and operate a plant using the SF4C

Machine designer, installer, employer and operator

The machine designer, installer, employer and operator are solely responsible for ensuring that all applicable legal requirements relating to the installation and the use in any application are satisfied and all instructions for installation and maintenance contained in the instruction manual are followed.

Whether this device functions as intended and systems including the SF4C comply with safety regulations depend on the appropriateness of the application, installation, maintenance and operation. The machine designer, installer, employer and operator are solely responsible for these items.

Engineer

The engineer must be a person who is appropriately trained, has widespread knowledge and experience, and can solve various problems which may arise in his field of work, e.g. as a machine designer or a person in charge of installation or operation, etc.

Operator

The operator should read this instruction manual thoroughly, understand its contents, and perform operations following the procedures described in this manual for the correct operation of this device.

In case this device does not perform properly, the operator should report this to the person in charge and stop machine operation immediately. The machine must not be used until correct performance of this device has been confirmed.

SF4C Safety light curtain

1.2 Safety Instructions

DANGER!

1.2 Safety Instructions

• Use the SF4C as per its specifications. Do not modify the safety light curtain

since its functions and capabilities may not be maintained and it may malfunction.

• The SF4C has been developed/produced for industrial use only.

• Do not use the SF4C under conditions or in environments not described in

this manual. Please consult us if there is no other choice but to use this device in such an environment.

• Do not use the safety light curtain in fields such as nuclear power control,

railroad, aircraft, automobiles, combustion facilities, medical systems, aerospace development, e.g. in applications where failure could result in large-scale damage to society or people.

• When the safety light curtain is to be used for enforcing protection of a

person from any danger occurring around an operating machine, the user must satisfy the regulations established by national or regional security committees.

• No matter what kind of equipment you use the device with, follow the safety

regulations in regard to appropriate usage, mounting (installation), operation and maintenance.

Please adhere to the following safety instructions when you install and operate the SF4C. Failure to do so can result in fatal or critical injury during unprotected use of hazardous machinery.

• Use the safety light curtain by installing suitable protective equipment as a

countermeasure for failure, damage, or malfunction of this device.

• Before using this light curtain, check whether it performs properly and has

the functions and capabilities as stated in the design specifications.

• Dispose of the safety light curtain as industrial waste.

Environment

• Do not use a mobile phone or a radio phone near the SF4C.

• If the safety light curtain is installed in a place where there are reflective

surfaces, make sure to install it so that reflected light from the reflective surfaces does not affect the receiver. Alternatively, take countermeasures such as painting, masking, roughening, or changing the material of the reflective surfaces, etc. Failure to do so may cause the SF4C not to detect properly, which may result in death or serious injury.

• Do not install the safety light curtain in the following environments:

- Areas exposed to intense interference light such as direct sunlight

Introduction

Installation

• Always keep the correctly calculated safety distance between the safety light

• Install an extra protective structure around the machine so that the operator

• Install the safety light curtain in a manner that some part of the operator's

• Do not install the safety light curtain at a location where it can be affected by

SF4C Safety light curtain

- Areas with high humidity where condensation is likely to occur

- Areas exposed to corrosive or explosive gases

- Areas exposed to vibration or shock at levels higher than those specified

- Areas exposed to contact with water

- Areas exposed to excessive steam or dust

- Areas where the beam-receiving part of this device is directly exposed to

light from a high-frequency fluorescent lamp (inverter type) or rapid-starter fluorescent lamp.

curtain and the dangerous parts of the machine.

must pass through the sensing area of the safety light curtain to reach the dangerous parts of the machine.

body always remains in the sensing area until the operator has finished working with the dangerous parts of the machine.

wall reflection.

• When installing multiple sets of the SF4C, connect the sets and, if necessary,

install some barriers so that mutual interference does not occur.

• Do not use any reflection type or recursive reflection type arrangement.

Equipment in which this device is installed

• When the safety light curtain is used in the PSDI (see page

appropriate control circuit must be configured between this device and the machinery. For details, be sure to refer to the standards or regulations applicable in each region or country.

• In Japan, do not use the SF4C as safety equipment for a press machine.

• Do not install the SF4C with a machine whose operation cannot be stopped

immediately in the middle of an operation cycle by an emergency stop.

• The SF4C provides safety 2 seconds after the power has been switched ON.

Make sure that the control system takes the time delay into consideration.

Wiring

• Switch off the power before wiring the safety light curtain.

• All electrical wiring should conform to the regional electrical regulations and

laws. The wiring should be done by skilled personnel with the required electrical knowledge.

• Do not run the sensor cable together with high-voltage lines or power lines

or put them together in the same raceway.

134) mode, an

SF4C Safety light curtain

• In case you need to extend the cable of the emitter or the receiver, each can

be extended up to 40.5m by using the exclusive cable. Furthermore, if the cable is extended and the muting lamp is used, the allowed total extendable length is reduced (see "

40).

• Do not control the device at only one control output (OSSD 1, OSSD 2) (see

page

133).

• To ensure that the output is not turned ON due to an earth fault of the control

output (OSSD 1, OSSD 2), ground the device on the 0V side (for PNP output) or +24V side (for NPN output).

Maintenance

• When you need to replace parts, always use only genuine replacement parts

from the supplier. If you use substitute parts from another manufacturer, the safety light curtain may fail to detect properly, which may result in death or serious body injury.

• The device must be inspected periodically by an engineer with the required

knowledge.

• When you have adjusted or maintained the SF4C, test the device following

the procedure specified in the maintenance chapter (see page switch the system back on.

1.2 Safety Instructions

Connecting Procedure and Pin Assignment" on page

97) before you

Others

• Clean this device with a clean cloth. Do not use thinner-based cleaners.

• Never modify this device. If you modify the SF4C, the safety light curtain may

fail to detect properly, which may result in death or serious injury.

• Do not use the safety light curtain to detect objects flying over the sensing

area.

• Do not use this device to detect transparent objects, translucent objects or

objects smaller than the specified minimum sensing size.

Introduction

SF4C Safety light curtain

1.3 Applicable Standards and Regulations

This device complies with the following standards and regulations.

• EU Machinery Directive 98/37/EC, EU Machinery Directive 2006/42/EC, EMC Directive 2004/108/EC

• EN 61496-1 (Type 4), EN 55011

• IEC 61496-1/2 (Type 4), ISO 13849-1:2006 (Category 4, PLe), IEC 61508-1 to 7 (SIL3)

• JIS B 9704-1/2 (Type 4), JIS B 9705-1 (ISO 13849-1) (Category 4), JIS C 0508-1 to 7

(SIL3)

• UL 61496-1/2 (Type 4), UL 508, UL 1998 (Class 2), CSA 61496-1 / 2 (Type 4), CSA C22.2 No.14

• OSHA 1910.212, OSHA 19 10.217(C), ANSI B11.1 to B11.19, ANSI/RIA 15.06



NOTE

• Conformity to JIS, OSHA and ANSI for this device has been evaluated by us.

•

directive. The CE-mark indicates that this product conforms to the EMC directive.

•

Canadian and U.S. requirements.

• If you want to use this device in a location other than already described (see

page regulations applicable in your region or country.

: This device conforms to the EMC directive and the Machinery

: This device is certified by TÜV Süd.

: The C-CL US Listing Mark indicates compliance with both

3), confirm first that the intended use complies with the standards or

Chapter 2

Before Using this Device

2.1 Confirmation of Packed Contents

Check mark Number Package content

SF4C Safety light curtain

□ 1 piece

□ 1 piece □ 1 piece

Sensor with 1 emitter and 1 receiver

Test rod Instruction manual (this manual)

SF4C Safety light curtain

2.2 Features

This device is the light curtain with the following features. No special controller is required.

• Cable type or pigtailed type is available.

• The control output (OSSD 1/2) is a PNP / NPN output switching type.

• Large multi-purpose indicators (red, green) which are bright and easy-to-see are

incorporated.

2.2 Features

• Each function can be set by using the handy controller SFC-HC (optional), see page

• For details of options, see "

Options" on page 117.

84.

Before Using this Device

2.3 Part Description

Standard mounting bracket MS-SFC-1 (Accessory)

Emitter

Model information

Display section

Beam-channel

Large multi-purpose indicator

SF4C Safety light curtain

Receiver

Model information

Large multi

-purpose indicator

Gray cable (with black line)

Gray cable

Parts of the safety light curtain

Part Description

Emitter

Receiver

Beam channel

Standard mounting bracket MS-SFC-1 (accessory)



NOTE

Emits light to the receiver facing it. Furthermore, the status of the emitter is indicated on its display section.

Receives light from the emitter facing it. Simultaneously the control output (OSSD 1, OSSD 2) turns ON when the all beam channels receive light from the emitter, and the control output (OSSD 1, OSSD 2) turns OFF when one or more beam channels are blocked. (Except when using the muting function, see note).

The light-emitting elements of the emitter and the light-receiving elements of the receiver are placed at the intervals of 20mm.

Use these brackets to mount both the emitter and receiver.

• In case of using the muting function, muting sensors and a muting lamp are

required. Please purchase these items separately.

SF4C Safety light curtain

• The blanking function is set with the handy controller SFC-HC (optional), see

84. Please purchase the handy controller separately.

page

2.3.1 How the Display Works

Front view Side view (left and right)

Position of beam-axis alignment

indicators

2.3 Part Description

Location of beam-axis alignment indicators

Large

multipurpose indicator

The description given in [ ] is marked on the sensor.

Emitter

Function Description

Large multi-purpose indicator

(Note 1)

Incident light intensity indicator (green/orange) [STB]

Beam-axis alignment indicator (green/red)

[RECEPTION]

Lights up in red when the large multi-purpose indicator input is ON. Lights up in green when the large multi-purpose indicator input is ON. There is no color display, when the input is OFF. With the optional handy controller you have

further setting possibilities, see "

Lights up in green when stable light is received. Lights up in orange when unstable light is received. Turns OFF when light is blocked. (Note 2)

When the control output (OSSD 1/2) is ON: lights up green. When the top block receives light: lights up red. When the top end receives light: blinks red.

When the control output (OSSD 1/2) is ON: lights up green. When the upper middle block receives light: lights up red.

When the control output (OSSD 1/2) is ON: lights up green. When the lower middle block receives light: lights up red.

Operation of Large Multi-Purpose Indicator" on page 14.

Large multipurpose indicator

When the control output (OSSD 1/2) is ON: lights up green. When the bottom block receives light: lights up red. When the bottom end receives light: blinks red.

Before Using this Device

Emitter

Function Description

Operation indicator [OSSD] (green/red),

(Note 3) Digital error

indicator (red)

Fault indicator [FAULT] (yellow)

PNP indicator [PNP] (orange)

NPN indicator [NPN] (orange)

Test input indicator [TEST] (orange)

Safety input 1 indicator [S1] (orange)

Safety input 2 indicator [S2] (orange)

Lights up when the sensor operation is as follows (OSSD 1/2): When the control output (OSSD 1/2) is ON: lights up green. When the control output (OSSD 1/2) is OFF: lights up red.

When the safety light curtain is in the lockout state, the error contents are displayed here.

When a fault occurs in the sensor: lights up or blinks.

When the PNP output is set: lights up

When the NPN output is set: lights up

Lights up when test input is active. Turns OFF when test input is inactive.

Lights up when safety input 1 is active. Turns OFF when safety input 1 is inactive.

Lights up when the safety input 2 is active. Turns OFF when the safety input 2 is inactive.

The description given in [ ] is marked on the sensor.

Receiver

Function Description

Large multi-purpose indicator

(Note 1)

Lights up in red when the large multi-purpose indicator input is active. Lights up in green when the large multi-purpose indicator input is active. Turns OFF when the input is inactive.

SF4C Safety light curtain

Incident light intensity indicator (green /orange) [STB]

Beam-axis alignment indicator (green/red) [RECEPTION]

Lights up in green when stable light is received. Lights up in orange when unstable light is received. Turns OFF when light is blocked. (Note 2)

When the control output (OSSD 1/2) is ON: lights up green. When the top block receives light: lights up red. When the top end receives light: blinks red.

When the control output (OSSD 1/2) is ON: lights up green. When the upper middle block receives light: lights up red.

When the control output (OSSD 1/2) is ON: lights up green. When the lower middle block receives light: lights up red.

SF4C Safety light curtain

Receiver

Function Description

OSSD indicator [OSSD] (green/red),

(Note 3)

When the control output (OSSD 1/2) is ON: lights up green. When the bottom block receives light: lights up red. When the bottom end receives light: blinks red. Lights up when the sensor operation is as follows (OSSD 1/2): When the control output (OSSD 1/2) is ON: lights up green. When the control output (OSSD 1/2) is OFF: lights up red.

2.3 Part Description

Fault indicator [FAULT] (yellow)

Digital error indicator (red)

PNP indicator [PNP] (orange)

NPN indicator [NPN] (orange)

Function setting indicator (orange) [FUNCTION]

Interlock indicator [INTERLOCK]

(yellow) Muting input 1 (orange) [MU1]

Muting input 2 indicator (orange) [MU2]



NOTE

When a fault occurs in the sensor: lights up or blinks.

When the safety light curtain is in the lockout state, the error contents are displayed here.

When the PNP output is set: lights up

When the NPN output is set: lights up

Blinks when the handy controller is connected. Lights up when blanking function is active. (Note 4)

Lights up when interlock is active. Turns OFF, when interlock is inactive.

Lights up when the muting input 1 is active. Turns off when the muting input 1 is inactive. Lights up when the muting input 2 is active. Turns off when the muting input 2 is inactive.

The operation of the large multi-purpose indicator (lights up, blinks or turns OFF) can be set by using the handy controller SFC-HC (optional), see page

84.

The status "when light is blocked" refers to the status when there is an obstacle in the sensing area.

Since the color of the operation indicator changes according to whether the control output (OSSD 1/2) is ON or OFF, the operation indicator on the sensor is marked "OSSD".

The blanking function is set by using the handy controller SFC-HC (optional), see page

84.

The threshold where the control output (OSSD 1/2) changes from OFF to ON is applied as "100% incident light intensity".

Before Using this Device

SF4C Safety light curtain

2.3.2 Operation of Large Multi-Purpose Indicator

You have different settings available for the large multi-purpose indicator with the handy controller SFC-HC (optional), see page mode numbers. Factory setting is mode 0.

Mode

1 2

3 4

5 6

Large multi-purpose indicator input 1/2

PNP output: ON

Lights up red Lights up green –- –- –- –Blinks red Blinks green –- –- –- –Lights up red Blinks green –- –- –- –Blinks red Lights up green –- –- –- –Lights up red Blinks red –- –- –- –Blinks green Lights up green –- –- –- ––- –- Lights up

Lights up red Blinks red –- –- Lights up

NPN output: OFF

PNP output: OFF

84. One mode can be selected from the following eight

PNP output: ON

OSSD 1/2

Muting function

ON OFF Active Inactive

green

Lights up red

Blinks green –-

green

Override function

Blinks green

REFERENCE

Further information regarding the functionality of the handy controller you find in the operation manual for the handy controller or see page

84.

SF4C Safety light curtain

2.4 Protection Area

2.4.1 Sensing Area

DANGER!

2.4 Protection Area

operator must pass through the sensing area of this device to reach the dangerous parts of the machine.

Furthermore, ensure that some part of the operator's body always remains in the sensing area while the operator works on the dangerous parts of the machine.

Do not use any arrangement using reflection or recursive reflection.

Follow the below descriptions carefully. Failure to do so may result

Install a protective structure around the machine so that the

in serious injury or death.

The sensing area is the zone formed by the sensing height of the sensor and the sensing range between the emitter and the receiver. The sensing height is determined by the number of beam channels.

The sensing range depends on the device type: 0.1 to 3m. Also remember that if the sensing range is less than 0.1m, malfunction may occur due to the optical structure.

Sensing height, sensing range, and sensing area

To p

Sensing height

The sensing height is the area between the line indicated in the top part and line indicated in the bottom part.

Emitter Receiver

Bottom

Sensing

height

Sensing area

Sensing range

When connecting the sensor, use the correct combination of emitter and receiver (same beam pitch and number of beam channels) and match their top-bottom orientation. Combining different types of emitters and receivers may produce a non-sensing area.

Before Using this Device

SF4C Safety light curtain

Do not arrange several receivers facing one emitter, or vice versa, as this could produce a non-sensing area or cause mutual interference.



EXAMPLE

Correct installation

Dangerous

part

Sensing area

Incorrect installation

Dangerous

part

2.4.2 Safety Distance

Dangerous

Sensing area

Protective structure

part

Sensing area

Dangerous

Sensing area

part

DANGER!

The safety distance is the minimum distance that must be maintained between the light curtain and the dangerous parts of the machine so that the machine can be stopped before a human body or an object can reach the dangerous parts.

The safety distance is calculated based on the equation described on the next page when a person moves (normal intrusion) at a straight angle into the sensing area of the sensor.

Calculate the safety distance correctly and always maintain a distance equal to or greater than the safety distance between the sensing area of this device and the dangerous parts of the machine. If the safety distance is miscalculated or not sufficient, the machine will not stop quickly enough when a human body or an object reaches the dangerous parts, which may result in serious injury or death.

SF4C Safety light curtain

2.4 Protection Area

In case the intrusion direction is not perpendicular to the sensing area, be sure to refer to the relevant standard for details of the calculation (regional standard, specification of the machine etc.)

Safety distance S

Sensing area

Dangerous part

Intrusion direction

Safety distance

DANGER!

region where this device is to be used and then install this device. Furthermore, the equation described on the next pages is to be used only when the intrusion direction is perpendicular to the sensing area, i.e. at a straight angle. If the intrusion direction is not perpendicular to the sensing area, refer to the relevant standard (regional standard, specification of the machine, etc.) for details of the calculation.

The max. response time of the machine is from the point when the machine receives the halt signal from this device to the point when the dangerous part of the machine stops. The max. response time of the machine should be timed with the actual machine.

The minimum size of the objects to be detected by the safety light curtain varies depending on

Before designing the system, refer to the relevant standards of the

whether the floating blanking function is used or not, see page

84. The equation differs depending on the case whether the minimum object to be sensed is larger than ∅40mm or not. Calculate the safety distance with the correct minimum size and the appropriate equation.

Number of beam channels

Minimum object to be sensed

Floating blanking not active

∅25mm ∅45mm ∅65mm ∅85mm

Floating blanking active at (Note)

1 beam channel 2 beam channels 3 beam channels

Before Using this Device



NOTE

SF4C Safety light curtain

For details of the floating blanking function, see page 84.

2.4.2.1 Calculation Example for Europe

The equation for the safety distance S is calculated in accordance with EN 999 and ISO 13855.

Formula in case that the minimum sensing object is Ø40mm or less:

S: Safety distance (mm)

K: Intrusion velocity of operator's body or object (mm/s). The equation assumes an

S = K x T + C

Minimum distance required between the sensing area surface and the dangerous parts of the machine.

intrusion direction perpendicular to the sensing area.

Response time of total equipment (s). T = T

: Maximum halt time of device (s). For determining Tm, refer to the

+ T

SF4C

machine documentation or take a measurement using a special device called a 'brake monitor'.

: Response time of this device (s)

SF4C

Additional distance calculated from the minimum size of the object to be detected by the sensor (mm). C has to be 0 or more. C = 8 x (d - 14)

d: Minimum object diameter (mm)

Procedure

1. Calculate the safety distance S with a velocity K = 2,000mm/s There are 3 possibilities (1-3):

1. S < 100mm Use 100mm as the safety distance.

2.100 ≤ S ≤ 500mm

3. S > 500mm Continue with the next step in the procedure

Use the calculated result as the safety distance.

2. Recalculate S with K' = 1,600mm/s There are 2 possibilities (4-5):

4. S > 500mm Use the calculated result as the safety distance.

5. S ≤ 500mm

Use 500mm as the safety distance.

SF4C Safety light curtain

When this device is used in the 'PSDI Mode', an appropriate safety distance S must be calculated. For details, be sure to refer to the standards or regulations applicable in each region or country.



EXAMPLE

Calculate the safety distance with the following values:

K: 2,000 mm/s

: 0.1s

: 0,7ms

SF4C

d: 25mm

With these values, the calculation is as follows:

S = K x T + C

2.4 Protection Area

= 2,000 x (0.1 + 0.007) + 8 x (25 - 14) = 302

As 302 matches possibility 2 listed above, 302mm is the safety distance.



EXAMPLE

Calculate the safety distance with the following values:

K: 2,000mm/s

: 0.4s

: 7ms

SF4C

d: 25mm

With these values, the calculation is as follows:

S = K x T + C

= K x (T

= K x (T = 2,000 x (0.4 + 0.007) + 8 x (25 -

+ T

) + 8 x (d - 14)

SF4C

) + 8 x (d - 14)

SF4C

14)

As 902 matches possibility 3 listed above, recalculate the safety distance with K' = 1,600mm/s.

S = K' x T + C

= 902

= K x (T

+ T

) + 8 x (d - 14)

SF4C

Before Using this Device

SF4C Safety light curtain

= 1,600 x (0.4 + 0.007) + 8 x (25 - 14) = 739.2

As 739.2 is > 500mm, use this recalculated result as the safety distance.

Formula in case that the minimum sensing object is Ø40mm or more:

S = K x T + C

S: Safety distance (mm)

Minimum distance required between the sensing area surface and the dangerous parts of the machine.

K: Intrusion velocity of operator's body or object (mm/s). The equation assumes an

intrusion direction perpendicular to the sensing area.

Response time of total equipment (s). T = T

Maximum halt time of device (s). For determining T

+ T

SF4C

, refer to the

machine documentation or take a measurement using a special device called a 'brake monitor'.

: Response time of this device (s)

SF4C

C: Additional distance calculated from the minimum size of the object to be detected by

the sensor (mm). C = 850 mm (Constant)

2.4.2.2 Calculation Example for US

he equation safety distance S is calculated in accordance with ANSI/RIA B15.06 with the formula:

S = K x (T

Tbm

+ Tc + T

+ Tbm) + Dpf

SF4C

Safety distance (mm) Minimum distance required between the sensing area surface and the dangerous

parts of the machine. Intrusion velocity of operator's body or object. The recommended value in OSHA is

63inch/s ≈ 1,600mm/s. ANSI/RIA B15.06 does not define the intrusion velocity 'K'. When determining K,

consider possible factors including the physical ability of operators. Additional halting time tolerance for the brake monitor (s)

= Ta - (Ts + Tc)

: Setting time of brake monitor (s)

When the machine is not equipped with a brake monitor, it is recommended that 20% or more of (T

+ Tc) is taken as additional halt

time.

Ts: Halt time calculated from the operation time of the control element (air

SF4C Safety light curtain

2.4 Protection Area

SF4C

Dpf





valve, etc.) (s)

: Maximum response time of the control circuit required for the brake (s)

Response time of this device (s) Additional distance calculated from the minimum size of the object to be detected by

the safety light curtain (mm) with the formula: D

= 61.2mm

NOTE

Since the calculation above is performed by taking 1 inch = 25.4mm, there is a slight difference between the representation in mm and that in inches. Refer to the relevant standard for details.

EXAMPLE

Calculate the safety distance with the following values:

SF4C

d: 0.985ich ≈ 20mm

With these values, the calculation is as follows:

S = K x (T

= 63 x (T

= 63 x T

≈ 63 x T

+ Tc + T

+ 0.014) + 3.4 x (d - 0.276)inch

+ 0.014) + 3.4 x (0.985 - 0.276)

63 x 0.007 + 3.4 x 0.709

+ 0,441 + 2.4106

2.85inch

+ Tbm) + Dpf

SF4C

In case this device is installed in a system with a maximum halt time 0.1 (s)

S = 63 x T

= 63 x 0.1 + 2.85

= 9.15inch ≈ 232.41mm

+ 2.85

Hence, as per the calculations Ds is 9.15inch ≈ 232.41mm.

Before Using this Device



NOTE

Since the calculation above is performed by taking 1inch = 25.4mm, there is a slight difference between the representation in mm and that in inches. Refer to the relevant standard for details.

2.4.3 Influence of Reflective Surface

DANGER!

SF4C Safety light curtain

surfaces, make sure to install this device so that reflected light from the reflective surfaces does not affect the receiver. Alternatively, take countermeasures such as painting, masking, roughening, or changing the material of the reflective surfaces, etc. Failure to do so may cause the sensor not to detect properly,

If the device is installed in a place where there are reflective

which may result in death or serious injury.

Install this device at a distance of at least 0,16m away from reflective surfaces such as metal walls, floors, ceilings, workpieces, covers, panels or glass surfaces.

Side view Top view

Reflective surface

0.16m

Sensing range

0.1 - 3m

Receiver

Emitter

Reflective ceiling

0,16m

Sensing range

0,1 - 3m

0,16m

Reflective floor

Receiver

Emitter

2.4.4 Device Placement

If there is a problem with the wiring or when you need to evaluate the system before you add further equipment, place two or more sets of emitters and receivers facing each other without series or parallel connection between them. Perform an operation test (see page

56).

SF4C Safety light curtain

DANGER!

2.4 Protection Area

understand them thoroughly before installing the sensors. Improper sensor placement could cause the sensor to malfunction, which may result in serious injury or death.

If this device is used in multiple sets, arrange them so that mutual interference is avoided. If mutual interference occurs, it can result in serious injury or death.

Refer to the examples of sensor placement as follows and



EXAMPLE

1) Install the emitters or the receivers back to back.

Receiver ReceiverEmitterEmitter

2) Arrange the emitters and the receivers vertically on opposite sides.

Emitter

Receiver

Emitter

3) Arrange the emitters and the receivers horizontally on opposite sides.

Receiver

Emitter

Receiver

4) Install a barrier

Receiver Emitter Emitter

Receiver

Barrier

Before Using this Device



NOTE

The figures above are just examples of sensor placement. If there are any questions or problems, please contact our office.

SF4C Safety light curtain

2.5 Mounting

The standard mounting bracket MS-SFC-1 is included with the device. Other mounting brackets appropriate for your installation environment, has to be purchased separately. Please, also purchase the hexagon socket head bolts separately. They are not part of the product.

• Standard mounting bracket (MS-SFC-1)

• NA2-N compatible mounting bracket (MS-SFC-2)

• Multifunctional Mounting Bracket MS-SFC-3 (see page

119)

2.5.1 Mounting with Standard Mounting Bracket

Before you start mounting the device, read the following important notes carefully.



Unless otherwise specified, the following mounting procedure is common for both emitters and receivers. The direction of the standard mounting bracket MS-SFC-1 (accessory) which is attached to this device can be changed depending on the mounting position of the device.

NOTE

• Do not bend the cable of this device. Applying improper loads to the cable

could cause the wire to break.

• The minimum bending radius of the cable is 6mm. Mount the sensor

accordingly.

• Mount the emitter and the receiver at the same level and parallel to each

other. The effective aperture angle of this device is ±2.5°or less for a sensing distance exceeding 3m.

• Unless otherwise specified, the mounting procedure is common for both

emitters and receivers. To prepare the mounting holes, refer to the dimension diagrams.

Before Using this Device

Procedure

1. Loosen the M3 countersunk head screw (with anti-loosening agent, length 4mm) which is attached to the back of the device

2. Rotate the bracket to adjust the installation direction of emitter and receiver

3. Tighten the M3 countersunk head screw

The tightening torque should be 0,3N•m or less.

M3 countersunk head screw (with anti-loosening agent, length 4mm)

Standard mounting bracket MS-SFC-1 (Accessory)

SF4C Safety light curtain

Mountable in three directions

SF4C

4. Install the standard mounting brackets on the mounting surface with two hexagon-socket head bolts (M5)

2.5.2 Mounting with Multifunctional Mounting Bracket MS-SFC-3 (optional)

The following procedure shows how to mount the safety light curtain with the multifunctional mounting bracket MS-SFC-3.

SF4C Safety light curtain

2.5 Mounting

Procedure

1. Remove the M3 countersunk head screw with anti-loosening agent (length 4mm) which is attached to the back of the device

M3 countersunk head screw with anti-loosening agent (length 4mm)

SF4C

2. Then remove the standard mounting bracket MS-SFC-1

3. Mount the multifunctional mounting bracket using the M3 countersunk head screw with anti-loosening agent (length 4mm) (accessory of the multifunctional mounting bracket). The tightening torque should be 0.3N·m

Multifunctional mounting bracket (MS-SFC-3, optional)

M3 countersunk head screw with anti-loosening agent (length 4mm)

(Accessory of multifunctional mounting bracket)

Part A

Part B

Before Using this Device

4. Set the multifunctional mounting bracket on the mounting surface using either two hexagon-socket head bolts (M6) or four hexagon-socket head bolts (M4)

Hexagon-socket head bolt

SF4C

SF4C Safety light curtain



NOTE

SF4C-H28□ and SF4C-H32□ require the multifunctional intermediate supporting bracket MS-SFC-4 (optional) (see page

31).

2.5.3 Dead Zoneless Mounting

You can mount the safety light curtain with the multifunctional mounting bracket MS-SFC-3 so that no dead zone exists, follow this procedure.

SF4C Safety light curtain

2.5 Mounting

Procedure

1. Remove the M3 countersunk head screw with anti-loosening agent (length 4mm) which is attached to the back of the device

M3 countersunk head screw with anti-loosening agent (length 4mm)

SF4C

2. Mount the multifunctional bracket using the M3 countersunk head screw with anti-loosening agent (length 4mm) (accessory of multifunctional mounting bracket). The tightening torque should be 0.3N·m

Multifunctional mounting bracket (MS-SFC-3, optional)

M3 countersunk head screw with anti-loosening agent (length 4mm)

(Accessory of multifunctional mounting bracket)

Part A

Part B

3. Remove the two of the hexagon-socket head bolts for beam-axis alignment M3 (length 5mm) on part A.

Hexagon socket bolt for beam-axis alignment

Part A

Part B

4. Separate part A from part B and change the direction of the part A of the multifunctional mounting bracket.

Before Using this Device

5. Tighten the two hexagon-socket head bolts for beam-axis alignment M3 (length 5mm). The tightening torque should be 0.2N·m

6. Set the multifunctional bracket on the mounting surface using either two hexagon head bolts (M6) or four hexagon head bolts (M4).

SF4C Safety light curtain

Part A

Part B



Hexagon head bolt

Hexagon head bolts

SF4C

NOTE

SF4C-H28□ and SF4C-H32□ require the multifunctional intermediate supporting bracket MS-SFC-4 (optional) (see page

31).

SF4C Safety light curtain

2.5 Mounting

2.5.4 Mounting the Intermediate Supporting Bracket MS-SFC-4

If you want to mount the multifunctional intermediate supporting bracket MS-SFC-4, follow this procedure:

Procedure

1. Make sure that the standard mounting bracket (MS-SFC-1) is not attached at the safety light curtain, otherwise loosen it.

2. Slip on the multifunctional intermediate supporting bracket MS-SFC-4 (optional) from the top or from the bottom of the device.

Multifunctional intermediate supporting bracket MS-SFC-4 (Optional)

SF4C

Before Using this Device

3. Fix the multifunctional intermediate supporting bracket on the safety light curtain using a hexagon head bolt (M6) or a hexagon socket head bolt (M6).

Hexagon socket head bolt M6

Hexagon head bolt M6

SF4C Safety light curtain

SF4C

You can use the multifunctional intermediate supporting bracket MS-SFC-4 (optional) in combination with the multifunctional mounting bracket MS-SFC-3 (optional). It cannot be mounted in combination with the standard mounting bracket.

2.5.5 Mounting the Protective Metal Case

If you want to mount the protective metal case, follow this procedure.

Procedure

1. Make sure that the standard mounting bracket MS-SFC-1 (accessory), mounted to this device, is fixed in the center

2. Slip on the protective metal case from the top of the safety light curtain

SF4C Safety light curtain

3. Position and adjust the mounting holes of the protective metal case and the standard mounting bracket. Tighten them with two hexagon-socket head bolts (M5) on the mounting surface

Hexagon-socket head bolt (M5)

Standard mounting bracket MS-SFC-1 (Accessory)

Protective metal case MS-SFCH-□ (Optional)

2.5 Mounting

CAUTION

• Use the protective metal case MS-SFCH-□ (optional) in combination with the standard mounting bracket MS-SFC-1 (accessory). It cannot be mounted in combination with the multifunctional mounting bracket MS-SFC-3 (optional).

• When mounting the protective metal case MS-SFCH-□ (optional) to this device, make sure that the standard mounting bracket MS-SFC-1 (accessory) is mounted centered. When the standard mounting bracket is mounted as dead zoneless mounting, the protective metal case MS-SFCH-□ (optional) can not be mounted to this device.

Before Using this Device

2.6 Wiring

DANGER!

SF4C Safety light curtain

Switch off the power before wiring the device.

All electrical wiring should conform to the regional electrical regulations and laws. The wiring should be done by engineer(s) having the required electrical knowledge.

Do not run the sensor cable together with high-voltage lines or power lines or put them together in the same raceway.

Connect the machine or the support where the sensor is mounted to the frame ground (F.G.). Failure to do so may cause the product to malfunction due to noise, resulting in serious injury or death.

The wiring should be done in a metal box connected to the frame ground (F.G.).

Take countermeasures regarding the system to ensure that dangerous performance caused by the earth failure cannot occur. Failure to do so could cause jeopardize the system stop, resulting in serious bodily injury or death.

Ground the 0V side (PNP output)/24V side (NPN output) to ensure that the output is not turned ON by accident due to an earth fault of the control output (OSSD 1, OSSD 2).

When this product is used in a situation where it has to conform to the Korean S-mark, make sure to ground the 0V side (PNP output).

Make sure to insulate the ends of the unused lead wires.

Use a safety relay unit or an equivalent safety control circuit as a final switching device (FSD).

2.6.1 Power Supply Unit

The wiring of the power supply unit should be performed by a specialist who has the required electrical knowledge.

SF4C Safety light curtain

DANGER!

2.6 Wiring

The DC power supply unit must satisfy the following conditions.

• The power supply unit must be authorized for use in the region where this device is to be used.

• The power supply unit must conform to the EMC Directive and Low-Voltage Directive (where CE certification is required). The power supply unit must conform to CLASS 2 (where UL/cUL certification is required).

• If the power supply conforms to the Low-Voltage Directive and has an output of 100VA or less, it is suitable.

• The frame ground (F.G.) terminal must be connected to ground when using a commercially available switching regulator.

• The power supply unit must have an output holding time of 20ms or more.

• If there is a possibility of surge, take countermeasures such as connecting a surge

absorber to the origin of the surge.

Wire correctly and use a power supply unit which conforms to the laws and standards of the region where this device is to be used. If the power supply unit does not conform to regional requirements or the wiring is improper, this device may malfunction or be damaged, which can result in serious injury or death.

Before Using this Device

2.6.2 PNP Output

SF4C Safety light curtain

Emitter

Main circuit

Receiver

Main circuit

Terminal No. of pigtailed type

Internal circuit Users’ circuit

B B

Color code

(Brown) + V

(Pink) Test input / Reset input

(Pale purple) Interlock setting input

(Yellow) Override input

(Red) Muting lamp output

(Gray) Safety input 1

(Gray / Black) Safety input 2

(Green / Black) Auxiliary output

(Shield) Output polarity setting wire (Blue) 0V (Orange) Synchronization + (Orange / Black) Synchronization -

(Orange / Black) Synchronization -

(Orange) Synchronization +

(Brown) + V

(Gray) Large multi-purpose

indicator input 1 (Gray / Black) Large multi-purpose

indicator input 2

(Sky-blue / White) Muting input 1

(Sky-blue / Black) Muting input 2

(Green) External device monitor input

(Black) Control output 1 (OSSD 1)

*S1 *S2

*S2

Load

*S2*S2 *S2 *S2

24V DC

+10

-15

(White) Control output 2 (OSSD 2)

(Shield) Output polarity setting wire

(Blue) 0V

Internal circuit Users’ circuit

SF4C Safety light curtain



NOTE

• For wiring the safety input 1 wire (gray) and the safety input 2 wire

(gray/black), see " Inactive External Device Monitor Function (Control Category 4)" on page

49.

• The large multipurpose indicator lights up in red when connecting the large

multi-purpose indicator input 1 wire (gray) and +V, and it lights up in green when connecting the large multi-purpose indicator input 2 wire (gray/black)

Symbols in the wiring diagram

Switch S1

Switch S2

K1, K2 External device (forcibly guided relay or magnetic contactor) Resistance A

Resistance B

Resistance C

Resistance D

Condenser E Condenser F

Vs = Applied supply voltage

and +V.

• Test input/Reset input

• Interlock setting input,

Override input, Large multi-purpose indicator input 1/2, Muting input 1/2, External device monitor input

3kΩ

6.8kΩ

470Ω

47kΩ

0.47μF

0.1μF

When manual reset is activated:

• Vs to Vs - 3.5V (sink current: 5mA or less): OFF

• Open: ON

When auto-reset is activated:

• Vs to Vs - 3.5V (sink current: 5mA or less): ON

• Open: OFF

• Vs to Vs - 3.5 V (sink current: 5mA or less): ON

• Open: OFF

2.6 Wiring

Before Using this Device

2.6.3 NPN Output

SF4C Safety light curtain

Emitter

Main circuit

Receiver

Terminal No. of pigtailed type

Internal circuit

Color code

(Brown) + V

(Shield) Output polarity setting wire (Green / Black) Auxiliary output

(Red) Muting lamp output

(Gray) Safety input 1 (Note 1)

(Gray / Black) Safety input 2 (Note 1)

(Pink) Test input / Reset input

(Pale purple) Interlock setting input

(Yellow) Override input

(Blue) 0V (Orange) Synchronization +

(Orange / Black) Synchronization -

Users’ circuit

(Orange / Black) Synchronization -

(Orange) Synchronization + (Brown) + V

(Shield) Output polarity setting wire

(Black) Control output 1 (OSSD 1)

Load

*S2

*S1

24V DC

+10

-15

Main circuit

Internal circuit

(White) Control output 2 (OSSD 2)

Green) External device monitor input

(

(Gray) Large multi-purpose indicator input 1 (Note 2)

(Gray / Black) Large multi-purpose indicator input 2 (Note 2)

(Sky-blue / White) Muting input 1

(Sky-blue / Black) Muting input 2

(Blue) 0V

Users’ circuit

*S2

*S2*S2

SF4C Safety light curtain



NOTE

• For wiring the safety input 1 wire (gray) and the safety input 2 wire

(gray/black), see "Inactive External Device Monitor Function (Control Category 4)" on page

49.

• The large multipurpose indicator lights up in red when connecting the large

multi-purpose indicator input 1 wire (gray) and 0V, and it lights up in green when connecting the large multi-purpose indicator input 2 wire (gray/black)

Symbols in the wiring diagram

Switch S1

Switch S2

K1, K2 External device (forcibly guided relay or magnetic contactor) Resistance A

Resistance B

Resistance C

Resistance D

Condenser E Condenser F

Vs = Applied supply voltage

and 0V.

• Test input/Reset input

• Interlock setting input,

Override input, Large multi-purpose indicator input 1/2, Muting input 1/2, External device monitor input

3kΩ

6.8kΩ

470Ω

47kΩ

0.47μF

0.1μF

When manual reset is activated:

• Vs to Vs - 2.5V (source current: 5mA or less): OFF

• Open: ON

When auto-reset is activated:

• Vs to Vs - 2.5V (source current: 5mA or less): ON

• Open: OFF

• Vs to Vs - 2.5 V (source current: 5mA or less): ON

• Open: OFF

2.6 Wiring

2.6.4 Output Signal during Self-Diagnosis

Since the receiver performs the self-diagnosis of the output circuit when the sensor is in light-receiving status (ON status), the output transistor turns OFF periodically (see following figure).

When the OFF signal is fed back, the receiver judges the output circuit as normal. When the OFF signal is not fed back, the receiver judges either the output circuit or wiring as faulty, and the control output (OSSD 1, OSSD 2) stays OFF.

Before Using this Device

SF4C Safety light curtain

DANGER!

malfunction, pay attention to the input response time of the machine to be connected to this device when you perform the wiring.

Time chart

Since the OFF signal of this device may cause a

Light

Light received status

Control output 1 (OSSD 1)

Control output 2 (OSSD 2)

received

Light blocked

OFF

7ms or less

Approx. 2.5ms

Approx. 35 to 60μs

Approx. 20μs

Approx. 35 to 60μs

Approx. 20μs

Approx. 35 to 60μs

2.6.5 Connecting Procedure and Pin Assignment

Connect the mating cable (with a connector on one end or a connector on both ends) to the pigtailed type connector of the safety light curtain (emitter and receiver) according to the customer's application and the connector pin assignment following.

In the case you are using a cable type (emitter and receiver), wire the cables according to the customer's application referring to the connector pin assignment following.

DANGER!

Extending the cable longer than the length specified in the following table may cause malfunction, which can result in serious injury or death.

40.5m or less (for each emitter and receiver). Extending the cable longer than

40.5m may cause malfunction, which can result in death or serious injury.

each emitter and receiver).

the exclusive cable, use a shielded twisted-pair cable with a diameter of

0.2mm

or more.



NOTE

• When extending the cable, use the exclusive cable up to the total length of

• In case of using the muting lamp, a total length should be 30.5 or less (for

• When you need to extend the synchronization wire with a cable other than

SF4C Safety light curtain

• When this device is used in conformity with the Korean S-mark, the power

wire to be connected to this device should be less than 10m long.

Extension cable with connector on one end Extension cable with connectors on both ends

2.6 Wiring

Pin arrangement for emitter and receiver

Side A

Pin assignment on the A and B side connectors

Emitter

Receiver

Cable/connector color

Gray/Gray

Gray (with black stripe)/Black

Pin No. Lead wire color Description

1 Pale purple Interlock setting input 2 Brown +V 3 Pink Test input/Reset input 4 Green/Black Auxiliary output 5 Orange Synchronization + 6 Orange/Black Synchronization 7 Blue 0V 8 (Shield) Output polarity setting wire 9 Gray Safety input 1 10 Gray / Black Safety input 2 11 Yellow Override input 12 Red Muting lamp output 1 White Control output 2 (OSSD 2) 2 Brown +V 3 Black Control output 1 (OSSD 1) 4 Green External device monitor input 5 Orange Synchronization + 6 Orange/Black

7 Blue 0V 8 (Shield) Output polarity setting wire 9 Gray Large multi-purpose indicator

10 Gray / Black Large multi-purpose indicator

11 Sky-blue / White Muting input 1 12 Sky-blue / Black Muting input 2

Side A

Pin arrangement for emitter and receiver

Synchronization －

input 1

input 2

Side BSide A

Before Using this Device



NOTE

The connectors can be distinguished by their color as follows:

• Connector for emitter: gray

SF4C Safety light curtain

• Connector for receiver: black

2.6.6 Basic Wiring

This is the general configuration using one set of an emitter and a receiver facing each other. The control output (OSSD 1, OSSD 2) turns OFF if the light is blocked, while it automatically turns ON if the light goes through.

The auxiliary output ( function (

Green).

Feature Setting

Interlock function Inactive (Auto-reset)

External device monitor function Inactive Auxiliary output Not available

Wiring for PNP output

Emitter

Receiver

Gray cable

Gray cable (with black line)

Green/Black) has to be connected with the external device monitor

(Red) Muting lamp output

(Yellow) Override input (Pale purple) Interlock setting input (Brown) + V

(Pink) Test input / Reset input

(Gray) Safety input 1 (Gray / Black) Safety input 2 (Shield) Output polarity setting wire

(Blue) 0V (

Green / Black) Auxiliary output

(Orange) Synchronization + (Orange / Black) Synchronization (Orange / Black) Synchronization (Orange) Synchronization + (

Green) External device monitor input

(Brown) + V (Black) Control output 1 (OSSD 1) (White) Control output 2 (OSSD 2) (Shield) Output polarity setting wire (Blue) 0V (Sky-blue / White) Muting input 1

(Sky-blue / Black) Muting input 2 (Gray) Large multi-purpose indicator input 1

(Gray / Black) Large multi-purpose indicator input 2

24V

+10

-15

SF4C Safety light curtain

Wiring for NPN output

2.6 Wiring

EmitterReceiver

(Red) Muting lamp output (Yellow) Override input (Pale purple) Interlock setting input (Brown) + V

Gray cable

(Shield) Output polarity setting wire (Gray) Safety input 1 (Gray / Black) Safety input 2 (Pink) Test input / Reset input

24V

+10

-15

(Blue) 0V (Green / Black) Auxiliary output

(Orange) Synchronization + (Orange / Black) Synchronization (Orange / Black) Synchronization (Orange) Synchronization + (

Green) External device monitor input

Gray cable (with black line)

(Brown) + V (Black) Control output 1 (OSSD 1) (White) Control output 2 (OSSD 2) (Shield) Output polarity setting wire

(Blue) 0V (Sky-blue / White) Muting input 1

(Sky-blue / Black) Muting input 2 (Gray) Large multi-purpose indicator input 1

(Gray / Black) Large multi-purpose indicator input 2

Before Using this Device

SF4C Safety light curtain

2.7 Wiring Examples

The following examples show how this device should be wired depending on the connection method and which function is used.

2.7.1 Manual Reset When Interlock is Active

This is the general configuration using one set of the emitter and receiver facing each other. The control output (OSSD 1/2) turns OFF if the light is blocked.

Feature Setting

Interlock function Active (Manual reset)

External device monitor function Active Auxiliary output Available

Wiring for PNP output

EmitterReceiver

Gray cable

Gray cable (with black line)

Symbols in the wiring diagram

Switch S1

K1, K2 External device (forcibly guided relay or magnetic contactor)

• Test input/Reset input • Vs to Vs - 3.5V (sink current: 5mA or less): OFF

Vs = Applied supply voltage

(Red) Muting lamp output (Yellow) Override input

(Brown) + V (Pale purple) Interlock setting input (Pink) Test input / Reset input

(Gray) Safety input 1 (Gray / Black) Safety input 2

(

Green / Black) Auxiliary output

(Shield) Output polarity setting wire

(Blue) 0V (Orange) Synchronization + (Orange / Black) Synchronization (Orange / Black) Synchronization (Orange) Synchronization + (

Green) External device monitor input

(Brown) + V

(Black) Control output 1 (OSSD 1) (White) Control output 2 (OSSD 2) (Shield) Output polarity setting wire (Blue) 0V (Sky-blue / White) Muting input 1

(Sky-blue / Black) Muting input 2 (Gray) Large multi-purpose indicator input 1

(Gray / Black) Large multi-purpose indicator input 2

• Open: ON

Load

K1 K2

24V DC

+10

-15

SF4C Safety light curtain

Wiring for NPN output

Receiver

Emitter

Gray cable

Gray cable (with black line)

(Red) Muting lamp output (Yellow) Override input

(Brown) + V

Green / Black) Auxiliary output

( (Shield) Output polarity setting wire (Gray) Safety input 1

(Gray / Black) Safety input 2 (Pink) Test input / Reset input (Pale purple) Interlock setting input (Blue) 0V

(Orange) Synchronization + (Orange / Black) Synchronization (Orange / Black) Synchronization (Orange) Synchronization +

Green) External device monitor input

(

(Brown) + V (Black) Control output 1 (OSSD 1) (White) Control output 2 (OSSD 2) (Shield) Output polarity setting wire (Blue) 0V (Sky-blue / White) Muting input 1

(Sky-blue / Black) Muting input 2 (Gray) Large multi-purpose indicator input 1

(Gray / Black) Large multi-purpose indicator input 2

Symbols in the wiring diagram

Switch S1

• Test input/Reset input • 0 - 2.5V (source current: 5mA or less): OFF

• Open: ON

K1, K2 External device (forcibly guided relay or magnetic contactor)

Vs = Applied supply voltage

Load

2.7 Wiring Examples

24V DC

K1 K2

+10

-15



NOTE

The OSSD output type (PNP or NPN) is determined by the connecting state of the shield wire. Incorrect wiring may cause a lockout.

2.7.2 Auto-Reset When Interlock is Inactive (Control Category 4)

This is the general configuration using one set of the emitter and receiver facing each other. The control output (OSSD 1/2) turns OFF if the light is blocked.

Feature Setting

Interlock function Inactive (Auto reset)

External device monitor function Active Auxiliary output Available

Before Using this Device

Wiring for PNP output

EmitterReceiver

Gray cable

Gray cable (with black line)

Symbols in the wiring diagram

Switch S1

K1, K2 External device (forcibly guided relay or magnetic contactor)

• Test input/Reset input • Vs to Vs - 3.5V (sink current: 5mA or less): OFF

(Red) Muting lamp output (Yellow) Override input (Pale purple) Interlock setting input

(Brown) + V

(Pink) Test input / Reset input

(Gray) Safety input 1 (Gray / Black) Safety input 2

(

Green / Black) Auxiliary output

(Shield) Output polarity setting wire

(Blue) 0V (Orange) Synchronization + (Orange / Black) Synchronization (Orange / Black) Synchronization (Orange) Synchronization + (Green) External device monitor input

(Brown) + V (Black) Control output 1 (OSSD 1) (White) Control output 2 (OSSD 2) (Shield) Output polarity setting wire (Blue) 0V (Sky-blue / White) Muting input 1

(Sky-blue / Black) Muting input 2 (Gray) Large multi-purpose indicator input 1

(Gray / Black) Large multi-purpose indicator input 2

• Open: ON

Vs = Applied supply voltage

SF4C Safety light curtain

Load

K1 K2

25V

+10

-15

SF4C Safety light curtain

Wiring for NPN output

EmitterReceiver

Gray cable

Gray cable (with black line)

Symbols in the wiring diagram

Switch S1

K1, K2 External device (forcibly guided relay or magnetic contactor)

• Test input/Reset input • 0 - 2.5V (source current: 5mA or less): OFF

(Red) Muting lamp output (Yellow) Override input (Pale purple) Interlock setting input

(Brown) + V

(

Green / Black) Auxiliary output

(Shield) Output polarity setting wire (Gray) Safety input 1 (Gray / Black) Safety input 2 (Pink) Test input / Reset input

(Blue) 0V (Orange) Synchronization + (Orange / Black) Synchronization (Orange / Black) Synchronization (Orange) Synchronization + (

Green) External device monitor input

(Brown) + V (Black) Control output 1 (OSSD 1) (White) Control output 2 (OSSD 2) (Shield) Output polarity setting wire (Blue) 0V (Sky-blue / White) Muting input 1

(Sky-blue / Black) Muting input 2 (Gray) Large multi-purpose indicator input 1

(Gray / Black) Large multi-purpose indicator input 2

• Open: ON

Vs = Applied supply voltage

Load

2.7 Wiring Examples

K1 K2

24V DC

+10

-15



NOTE

• The OSSD output type (PNP or NPN) is determined by the connecting state of

the shield wire. Incorrect wiring may cause a lockout.

2.7.3 Active Safety Input Function (Control Category 4)

The safety input function can be activated when connecting a safety contact to the safety input 1 wire (gray) and the safety input 2 wire (gray/black) of the emitter; for details see " Function" on page

63.You can also connect a safety sensor, if you use the handy controller SFC-HC (optional). By connecting a safety sensor to the safety input 1 (gray) and the safety input 2, this device and the safety sensor can be used in a series connection.

For details, see page

Feature Setting

Interlock function Inactive (Auto-reset)

External device monitor function Inactive

84.

Safety Input

Before Using this Device

Feature Setting

Auxiliary output Not available

Wiring for PNP output

Safety contact

SF4C Safety light curtain

SF4C

Emitter

Receiver

Gray cable

Gray cable (with black line)

Symbols in the wiring diagram

Safety input

• Short circuit (sink current: 5 to 10 mA), Source current 5 to 10mA: ON

• Open: OFF

(Gray / Black) Safety input 2

(Gray) Safety input 1

(Red) Muting lamp output (Yellow) Override input (Pale purple) Interlock setting input (Brown) + V (Pink) Test input / Reset input (Shield) Output polarity setting wire (Blue) 0V

(Green / Black) Auxiliary output (Orange) Synchronization + (Orange / Black) Synchronization -

(Orange / Black) Synchronization (Orange) Synchronization + (Green) External device monitor input (Brown) + V (Black) Control output 1 (OSSD 1)

(White) Control output 2 (OSSD 2) (Shield) Output polarity setting wire (Blue) 0V (Sky-blue / White) Muting input 1

(Sky-blue / Black) Muting input 2 (Gray) Large multi-purpose indicator input 1

(Gray / Black) Large multi-purpose indicator input 2

24V DC

+10

-15

SF4C Safety light curtain

Wiring for NPN output

2.7 Wiring Examples

Safety contact

SF4C

Emitter

Receiver

Gray cable

Gray cable (with black line)

Symbols in the wiring diagram

Safety input

• Short circuit (sink current: 5 to 10mA), Source current 5 to 10mA: ON

• Open: OFF

(Gray / Black) Safety input 2

(Gray) Safety input 1

(Red) Muting lamp output (Yellow) Override input (Pale purple) Interlock setting input (Brown) + V (Pink) Test input / Reset input (Shield) Output polarity setting wire (Blue) 0V

Green / Black) Auxiliary output

( (Orange) Synchronization + (Orange / Black) Synchronization -

(Orange / Black) Synchronization (Orange) Synchronization +

Green) External device monitor input

( (Brown) + V (Black) Control output 1 (OSSD 1)

(White) Control output 2 (OSSD 2) (Shield) Output polarity setting wire (Blue) 0V (Sky-blue / White) Muting input 1

(Sky-blue / Black) Muting input 2 (Gray) Large multi-purpose indicator input 1

(Gray / Black) Large multi-purpose indicator input 2

24V DC

+10

-15



NOTE

• The OSSD output type (PNP or NPN) is determined by the connecting state of

the shield wire. Incorrect wiring may cause a lockout.

2.7.4 Inactive External Device Monitor Function (Control Category 4)

This is the configuration for connecting an auxiliary output and external device monitor input. The auxiliary output cannot be connected to external devices.

Before Using this Device

Feature Setting

Interlock function Inactive (Auto-reset)

External device monitor function Inactive Auxiliary output Not available

Wiring for PNP output

Receiver

Emitter

Gray cable

Gray cable (with black line)

Symbols in the wiring diagram

Switch S1

K1, K2 External device (forcibly guided relay or magnetic contactor)

• Test input/Reset input • Vs to Vs - 3.5V (sink current: 5mA or less): ON

(Red) Muting lamp output

(Yellow) Override input (Pale purple) Interlock setting input

(Brown) + V

(Pink) Test input / Reset input (Gray) Safety input 1 (Gray / Black) Safety input 2 (Shield) Output polarity setting wire (Blue) 0V

Green / Black) Auxiliary output

( (Orange) Synchronization +

(Orange / Black) Synchronization (Orange / Black) Synchronization (Orange) Synchronization + (Green) External device monitor input

(Brown) + V (Black) Control output 1 (OSSD 1)

(White) Control output 2 (OSSD 2) (Shield) Output polarity setting wire (Blue) 0V (Sky-blue / White) Muting input 1

(Sky-blue / Black) Muting input 2 (Gray) Large multi-purpose indicator input 1

(Gray / Black) Large multi-purpose indicator input 2

• Open: OFF

Vs = Applied supply voltage

SF4C Safety light curtain

24V DC

+10

-15

SF4C Safety light curtain

Wiring for NPN output

(Red) Muting lamp output

EmitterReceiver

Gray cable

Gray cable (with black line)

(Yellow) Override input (Pale purple) Interlock setting input

(Brown) + V (Shield) Output polarity setting wire (Gray) Safety input 1

(Gray / Black) Safety input 2

(Pink) Test input / Reset input

(Blue) 0V (Green / Black) Auxiliary output (Orange) Synchronization +

(Orange / Black) Synchronization -

(Orange / Black) Synchronization (Orange) Synchronization + (Green) External device monitor input

(Brown) + V (Black) Control output 1 (OSSD 1)

(White) Control output 2 (OSSD 2) (Shield) Output polarity setting wire (Blue) 0V (Sky-blue / White) Muting input 1

(Sky-blue / Black) Muting input 2 (Gray) Large multi-purpose indicator input 1

(Gray / Black) Large multi-purpose indicator input 2

Symbols in the wiring diagram

Switch S1

• Test input/Reset input • Vs to Vs - 2.5V (source current: 5mA or less): OFF

• Open: ON

K1, K2 External device (forcibly guided relay or magnetic contactor)

Vs = Applied supply voltage

2.7 Wiring Examples

24V DC

+10

-15



NOTE

The OSSD output type (PNP or NPN) is determined by the connecting state of the shield wire. Incorrect wiring may cause a lockout.

2.7.5 Active Muting Function (Control Category 4)

Feature Setting

Interlock function Inactive (Auto reset)

External device monitor function Active Auxiliary output Available

Before Using this Device

Wiring for PNP output

(Pale purple) Interlock setting input

EmitterReceiver

Gray cable

Gray cable (with black line)

(Brown) + V

(Red) Muting lamp output (Pink) Test input / Reset input (Yellow) Override input

(Gray) Safety input 1 (Gray / Black) Safety input 2

(

Green / Black) Auxiliary output

(Shield) Output polarity setting wire

(Blue) 0V

(Orange) Synchronization + (Orange / Black) Synchronization -

(Orange / Black) Synchronization -

(Orange) Synchronization +

Green) External device monitor input

(

(Brown) + V

(Sky-blue / White) Muting input 1 (Sky-blue / Black) Muting input 2

(Black) Control output 1 (OSSD 1) (White) Control output 2 (OSSD 2)

(Shield) Output polarity setting wire (Blue) 0V

(Gray) Large multi-purpose indicator input 1

(Gray / Black) Large multi-purpose indicator input 2

(Note 1 )

Symbols in the wiring diagram

Switch S1

• Test input/Reset input • Vs to Vs - 3.5V (sink current: 5mA or less): OFF

• Open: ON

Switch S2

K1, K2 External device (forcibly guided relay or magnetic contactor)

• Muting input/Override input

• Vs to Vs - 3.5V (sink current: 5mA or less): OFF

• Open: ON

Vs = Applied supply voltage

Load

SF4C Safety light curtain

K1 K2

24V DC

+10

-15

SF4C Safety light curtain

EmitterReceiver

Gray cable

Gray cable (with black line)

(Pale purple) Interlock setting input

(Brown) + V

(Red) Muting lamp output

Green / Black) Auxiliary output

( (Shield) Output polarity setting wire (Gray) Safety input 1 (Gray / Black) Safety input 2

(Yellow) Override input

(Pink) Test input / Reset input

(Blue) 0V (Orange) Synchronization +

(Orange / Black) Synchronization (Orange / Black) Synchronization (Orange) Synchronization + (

Green) External device monitor input

(Brown) + V (Black) Control output 1 (OSSD 1) (White) Control output 2 (OSSD 2) (Shield) Output polarity setting wire (Sky-blue / White) Muting input 1

(Sky-blue / Black) Muting input 2

(Blue) 0V (Gray) Large multi-purpose indicator input 1

(Gray / Black) Large multi-purpose indicator input 2

(Note)

Load

2.7 Wiring Examples

K1 K2

24V DC

+10

-15

Wiring for NPN output

Symbols in the wiring diagram

Switch S1

• Test input/Reset input • 0 - 2.5V (source current: 5mA or less): OFF

• Open: ON

Switch S2

K1, K2 External device (forcibly guided relay or magnetic contactor)

• Muting input/Override input

• 0 - 2.5V (source current: 5mA or less): OFF

• Open: ON

Vs = Applied supply voltage



NOTE

• The OSSD output type (PNP or NPN) is determined by the connecting state of

the shield wire. Incorrect wiring may cause a lockout.

The following sections contain information about the proper adjustment and operation of the safety light curtain.

You have to align the beam axis and test the light curtain in your application environment.

Before Using this Device

SF4C Safety light curtain

2.7.6 Beam-axis Alignment

The beam-axis alignment differs depending on the mounting bracket used (MS-SFC-1 or MS-SFC3). Follow either of the both procedures depending on which mounting bracket you use. To align the beam axis, please proceed as follows:

For MS-SFC-3:

Procedure

1. Turn ON the power supply unit of the safety light curtain

2. Check that the digital error indicator (red) and the fault indicator (yellow) of the emitter and receiver are off

If the digital error indicator (red) or the fault indicator (yellow) lights up or blinks, refer to the chapter on troubleshooting (see page

103) and report this to the

maintenance staff in charge.

3. In case of using the standard mounting bracket MS-SFC-1 (accessory), loosen the hexagon-socket head bolts (M5) which holds the standard mounting bracket MS-SFC-1

4. Move the emitter to the left and right in order to determine the range of the light received condition with the help of the beam-axis alignment indicator (red)

5. Then, set the emitter in the center of this range

6. Similar to the step 4, perform the beam-axis alignment for the receiver

7. Tighten the standard mounting bracket MS-SFC-1 by the hexagon-socket head bolt (M5)

8. Confirm that the beam-axis alignment indicators (green) in the display of the emitter and receiver, operation indicator (green) and OSSD indicator (green) light up

Emitter

Receiver

SF4C Safety light curtain

For MS-SFC-3 and MS-SFC-4:

2.7 Wiring Examples

Procedure

1. Turn ON the power supply unit of the safety light curtain

2. Check that the digital error indicator (red) and the fault indicator (yellow) of the emitter and receiver are off

If the digital error indicator (red) or the fault indicator (yellow) lights up or blinks, refer to the chapter on troubleshooting (see page

103) and report this to the

maintenance staff in charge.

3. In case of using the multifunctional mounting bracket MS-SFC-3 (optional), loosen the four hexagon-socket head bolts (M3, length: 5mm) which hold the multifunctional mounting bracket

4. In case of using also the multifunctional intermediate supporting bracket MS-SFC-4, loosen a hexagon-socket head bolt (M3, length: 5mm) for beam-axis alignment of multifunctional intermediate supporting bracket

5. Then, adjust the emitter/receiver so that the beam-axis alignment indicators on the display of the emitter and receiver light up

The emitter and the receiver can be fine-adjusted by ±5 degrees.

±5

6. After the adjustment, tighten the hexagon-socket head bolt for beam-axis alignment of the multifunctional mounting bracket MS-SFC-3

The tightening torque should be 2N·m or less.

7. Tighten the hexagon-socket head bolt of the multifunctional intermediate supporting brackets MS-SFC-4 (M3, length: 5 mm)

8. Confirm that the beam-axis alignment indicators (green) on the display of the emitter and receiver, the operation indicator (green) and the OSSD (green) indicator light up

REFERENCE

The beam-axis alignment indicator indicates the reception status for each section of a receiver. The receiver is divided into 4 sections. Also, the A (D) of the beam-axis alignment indicates the light-receiving status of the top end (bottom end)

Before Using this Device

beam channel. For example, when using a 16-beam channel sensor, there are 4 beam channels per section (i.e., 16/4=4). When the top end (bottom end) beam channel is received, the indicator A (D) of the beam-axis alignment blinks red. The following figure shows an example with 16 beam channels.

Only top end

beam

channel is

received

Light received Light blocked

3 beam channels

including the top

end beam channel

are received

4 beam

channels in top

block are

received

SF4C Safety light curtain

3 beam channels excluding the top

end beam

channel are

received

Symbols

: Received

: Blocked

: Blinks

: Lights up

:Turns off

When all 4 beam channels of one of the 4 sections are received, the beam-axis alignment indicator lights up in red. The indicators corresponding to the different sections light up in red, one by one, when the beam channels of the respective sections are received. When all beam channels are received and the control output (OSSD1/2) turns ON, all the four indicators of the beam-axis alignment turn into green. For information on testing the operation (see page

2.7.7 Operation Test

To test the installation, please proceed as follows:

Procedure

1. Turn ON the power supply unit of the safety light curtain.

2. Check that the digital error indicator (red) and the fault indicator (yellow) of the emitter and the receiver are off.

56).

If the digital error indicator (red) or the fault indicator (yellow) lights up or blinks, refer to the chapter on troubleshooting (see page

103) and report this to the

maintenance staff in charge.

SF4C Safety light curtain

3. Move the test rod up and down at three positions, just in front of the emitter (A), in the middle between the emitter and receiver (B), and just in front of the receiver (C).

2.7 Wiring Examples

Test rod

(C)

Receiver

(B)

Emitter

(A)

4. When you carry out step 3, check that the control outputs (OSSD 1, OSSD 2) are OFF and that both the OSSD indicator (red) of the receiver and the operation indicator (red) of the emitter light up as long as the test rod is present within the sensing area.

If the behavior of the control outputs (OSSD 1, OSSD 2) and the turning ON/OFF of the emitter/receiver indicators do not correspond to the movement of the test rod, refer to the chapter on troubleshooting (see page maintenance staff in charge.

103) and report this to the



NOTE

If the indicators show reception of light even though the test rod blocks the light, check whether there is a reflective object or extraneous light source near this device.

Chapter 3

Functions

SF4C Safety light curtain

3.1 Self-Diagnosis Function

The safety light curtain is equipped with a self-diagnosis function. Self-diagnosis is carried out when the power is turned ON and periodically during the operation.

In case an abnormality is detected during self-diagnosis, the device is immediately put in the lockout state and the control output (OSSD 1, OSSD 2) is set to OFF state. Find and remove the cause of the abnormality (see page

103).

SF4C Safety light curtain

3.2 Interlock Function

When the light curtain has been interrupted and control output (OSSD1, OSSD2) is OFF, the interlock function keeps the control output at OFF until a reset signal is input.

You can select whether interlock is enabled (manual reset) or disabled (automatic reset) by the way in which the interlock setting input line (pale purple) is connected.

You have to wire the safety light curtain accordingly to activate the interlock function and the manual reset. Without wiring the interlock function is disabled and auto reset is active.

Interlock function Reset operation Interlock setting input (pale purple)

Active Manual reset 0V, +V connection Inactive Auto reset Open

Manual reset:

Auto reset

Test input/Reset input

Reception status

Control output (OSSD 1, OSSD 2)

Time diagram for manual reset

Reception status

Control output (OSSD 1, OSSD 2)

Time diagram for auto reset

The control output (OSSD 1, OSSD 2) is not turned ON automatically even though this device receives light. When there is a signal at the reset input, the control output (OSSD 1, OSSD 2) is turned ON.

The control output (OSSD 1, OSSD 2) is turned ON automatically when this device receives light.

Open

0V, +V

Beam received

Beam blocked

OFF

Beam received

Beam blocked

OFF

7ms or less

20ms or more

90ms or more



NOTE

If this device is used with auto-reset, avoid an auto-restart after the safety output stop of the system by using a safety relay unit etc. (EN 60204-1).

Functions

3.3 Test Input Function

Danger!

SF4C Safety light curtain

the machine in which the SF4C series is installed. Failure to do so could result in death or serious injury.

This function enables to check the device operation by forcibly turning ON/OFF the control output (OSSD 1/2) of the receiver in the state "beam received".

The ON/OFF switching of the output is available by opening or short circuiting the test input/reset input wire (pink).

Do not use the test input function for the purpose of stopping

Interlock function Test input/Reset input wire (pink) Test input Output status

Open Inactive ON

Manual reset

Auto reset

PNP output: Connect to +V NPN output: Connect to 0V

Open Active OFF

PNP output: Connect to +V NPN output: Connect to 0V

Active OFF

Inactive ON

When the test input is activated, the control output (OSSD1/2) becomes OFF. By using this function, malfunction due to extraneous noise or abnormality in the control output (OSSD 1/2) and the auxiliary output can be determined even from the equipment side.

• In case of PNP output: Normal operation is restored when the test input/reset input wire (pink) is connected to +V (for manual reset: open).

• In case of NPN output: Normal operation is restored when the test input/reset input wire

(pink) is connected to 0V (for manual reset: open).

SF4C Safety light curtain

3.4 Safety Input Function

DANGER!

3.4 Safety Input Function

This function controls the control output (OSSD 1/2) of this device by receiving the detection signal of a safety contact or a safety sensor which is connected to the safety input 1 wire (gray) and the safety input 2 wire (gray/black).

The control output (OSSD 1/2) forcibly turns OFF when the safety input 1/2 is OFF.



Output operation of a safety contact and a safety sensor

As safety contact you can use an emergency stop switch with two NC (Normally Closed) contact points. As safety sensor you can use another safety light curtain or a safety switch with semiconductor output.

Safety contact

Safety sensor

NOTE

• The temporal difference between the switching from OFF to ON and ON to

OFF during the output operation of the safety input should be 1s or less.

• A safety contact can be connected with the factory setting of this device.

• When connecting a safety sensor, the handy controller SFC-HC (optional) is

required. The maximum number of safety sensors which can be connected to this device is 2 (only with version 2.1 of this device). For details see page

84.

NC (Normally Closed) ON-state operation OFF-state operation

ON: Status is safe (emergency stop switch, etc.)

ON: "Beam received" status (light curtain, etc.)

ON: "Door closed" status (safety switch etc.)

When extending the cable of other SF4C series which is connected to the safety input 1/2, use the exclusive cable. The total cable length should be 40.5m or less (for each emitter/receiver). If the total cable length is exceeding

40.5m, the device may malfunction, resulting in death or serious injury.

PNP output: Connect to +V

NPN output: Connect to 0V

Open



NOTE

• When using the PNP output type (or NPN output type) of this device take

care that also the safety sensor is of the same type (PNP/NPN output).The control output becomes OFF, if you use the wrong type of sensor.

Functions

• Use a safety sensor which incorporates a crossover short-circuit function in

• Use a safety contact point which incorporates two NC (Normally Closed)

• If you do not want to use the safety input function make sure to connect +V

Safety contact

Safety sensor

• It is possible to change the setting of the input mode by using the handy

SF4C Safety light curtain

the control output and connect both the safety input 1 wire (gray) and the safety input 2 wire (gray/black). Take care that if only one wire is connected, the device may not operate normally.

contacts and connect both the safety input 1 wire (gray) and the safety input 2 wire (gray/black). Take care that if only one wire is connected, the device may not operate normally.

or 0V.

PNP output NPN output

Safety input 1 wire (gray)

Connect to +V Connect to 0V Connect to +V Connect to 0V Connect to +V Connect to +V Connect to 0V Connect to 0V

Safety input 2 wire (gray/black)

Safety input 1 wire (gray)

Safety input 2 wire (gray/black)

controller, so you can switch between a safety contact and a safety sensor see page

84.

3.4.1 Serial Connection and Response Time

Serial connection and response time

DANGER!

The series connection is also available when connecting other SF4C safety light curtains to the safety input 1 wire (gray) and the safety input 2 wire (gray/black).



NOTE

Use a 0.2mm2 or more shielded cable when connecting other SF4C series cable to the safety input 1/2.

This device does not incorporate the interference prevention function. Thus, take sufficient care when installing the devices in series.

SF4C Safety light curtain

3.4 Safety Input Function

Overall Response time

The overall response time is composed of the response time of the safety light curtain and the response time of the safety sensor. In the case of a serial connection the safety sensor is also another safety light curtain.



EXAMPLE

In case of using SF4C in series or as a safety sensor:

Response time of this device + response time of safety sensor = 7ms + 7ms = 14ms.

This device

Control output (OSSD 1/2)

Safety sensor

3.4.2 Wiring Example for Safety Contact

Connect the emitter of this device and the safety contact as follows. In case of using lead wires other than those described below, perform the wiring depending on your application. For details on wiring, see "

SF4C

Receiver

Emitter

Wiring" on page 34.

Safety contact

(Gray / Black) Safety input 2

Gray cable

Gray cable (with black line)

(Gray) Safety Input 1 (Brown) +V

(Blue) 0V

(Orange) Synchronization +

(Orange/Black) Synchronization -

(Orange/Black) Synchronization (Orange) Synchronization +

(Brown) +V

(Blue) 0V

24V DC

10%

Functions

SF4C Safety light curtain

3.4.3 Wiring Example for Safety Sensor

If you want to wire a safety sensor you have to consider if you use the PNP and NPN type of SF4C.

Wiring for PNP output

When using this device with PNP output, connect a PNP output type safety sensor. Connect the emitter of the SF4C and the receiver of the safety sensor as follows.

In case of using lead wires other than those described below, perform wiring depending on your application. For details on wiring, see "

Emitter of SF4C Receiver of the safety sensor

Safety input wire 1 (gray) Control output 1 (OSSD 1) wire (black) or control output 2 (OSSD 2) wire

Safety input wire 2 (gray/black) Control output 2 (OSSD 2) wire (white) or control output 1 (OSSD 1) wire

+V wire (brown) +V wire (brown)

0V wire (blue) 0V wire (blue)

Wiring" on page 34.

(white)

(black)

SF4C Safety light curtain

Safety sensor

Emitter

Receiver

3.4 Safety Input Function

SF4C

Receiver

Gray cable (with black line)

Gray cable

Gray cable (with black line)

Emitter

Gray cable

(Blue) 0V

(Shield) Output polarity setting wire

(Brown) +V

(Orange) Synchronization+

(Orange/Black) Synchronization-

(Orange) Synchronization+

(Brown) +V (Blue) 0V

(Shield) Output polarity setting wire (Black) Control output 1 (OSSD 1) (White) Control output 2 (OSSD 2)

(Black) Safety input 1

(Gray/Black) Safety input 2

(Brown) +V

(Shield) Output polarity setting wire

(Blue) 0V

(Orange) Synchronization+

(Orange/Black) Synchronization-

(Orange) Synchronization+

(Brown) +V

(Black) Control output 1 (OSSD 1)

(White) Control output 2 (OSSD 2)

(Shield) Output polarity setting wire (Blue) 0V

K1 K2

24V DC

+10

-15



NOTE

Safety input: Short-circuit (source current 5 to 10mA): Active, Open: Inactive.

Wiring for NPN output

When using this device with NPN output, connect a NPN output type safety sensor. Connect the emitter of the SF4C and the receiver of the safety sensor as follows.

Functions

SF4C Safety light curtain

In case of using lead wires other than those described below, perform wiring depending on your application. For details on wiring, see "

Emitter of the device Receiver of the safety sensor

Safety input wire 1 (gray) Control output 1 (OSSD 1) wire (black) or control output 2 (OSSD 2) wire

Safety input wire 2 (gray/black) Control output 2 (OSSD 2) wire (white) or control output 1 wire (black)

+V wire (brown) +V wire (brown)

0V wire (blue) 0V wire (blue)

Wiring" on page 34.

(white)

SF4C Safety light curtain

Safety sensor

Emitter

Receiver

3.4 Safety Input Function

SF4C

Receiver

Gray cable (with black line)

Gray cable

Gray cable (with black line)

Emitter

Gray cable

(Blue) 0V

(Shield) Output polarity setting wire

(Brown) +V

(Orange) Synchronization+

(Orange/Black) Synchronization-

(Orange) Synchronization+

(Brown) 0V (Blue) +V

(Shield) Output polarity setting wire (Black) Control output 1 (OSSD 1) (White) Control output 2 (OSSD 2)

(Gray) Safety input 1

(Gray/Black) Safety input 2

(Brown) +V

(Shield) Output polarity setting wire

(Blue) 0V

(Orange) Synchronization+

(Orange/Black) Synchronization-

(Orange) Synchronization+

(Brown) +V

(Shield) Output polarity setting wire

(Black) Control output 1 (OSSD 1)

(White) Control output 2 (OSSD 2) (Blue) 0V

K1 K2

24V DC

+10

-15



NOTE

Safety input: Short-circuit (source current 5 to 10mA): Active, Open: Inactive.

Functions

SF4C Safety light curtain

3.5 Large Multi-purpose Indicator Function

You can choose, if the large multi-purpose indicator should light up or not by wiring the large multi-purpose indicator input 1 wire (gray) or the large multi-purpose indicator input 2 wire (gray/black).

Large multi-purpose indicator function

Operation of the large multi-purpose

indicator

Lights up red

Lights up green

Large multi-purpose indicator input 1 (gray)

Large multi-purpose indicator input 2 (gray/black)

PNP output: Connect to +V NPN output: Connect to 0V

Open Turns OFF PNP output: Connect to +V NPN output: Connect to 0V

Open Turns OFF

By wiring the large multi-purpose indicator input 1 wire (gray) and the large multi-purpose indicator input 2 wire (gray/black) to the auxiliary output wire (green/black) or the muting lamp output wire (red), the outputs operate accordingly.

Large multi-purpose indicator function

Large multi-purpose indicator input 1 (gray)

Large multi-purpose indicator input 2 (gray/black)

Auxiliary output wire

(green / black)

Muting lamp output wire (red) Lights up in red when the muting output is ON

Open Turns OFF

Auxiliary output wire

(green / black)

Muting lamp output wire (red) Lights up in green when the muting output is ON

Open Turns OFF

Operation of the large multi-purpose

indicator

Lights up in red when the auxiliary output is ON

Turns OFF when the auxiliary output is OFF

Lights up in green when the auxiliary output is ON

Turns OFF when the auxiliary output is OFF

It is possible to change the three operation modes of the large multi-purpose indicator (lights up, blinks or turns OFF) by using the handy controller SFC-HC (optional) see page

84.

3.5.1 Wiring Example of the Large Multi-Purpose Indicator

Wire the large multi-purpose indicator input 1 wire (gray) or the large multi-purpose indicator input 2 wire (gray/black) as follows.

SF4C Safety light curtain

3.5 Large Multi-purpose Indicator Function

If you use other lead wires than below perform the wiring depending on your application. For details, see "

Wiring" on page 34.

Gray cable

Green/Black) Auxiliary output or (Red) Muting lamp output

(

(Brown) +V

(Blue) 0V (Orange) Synchronization +

(Orange/Black) Synchronization -

Gray cable (with black line)

(Orange/Black) Synchronization (Orange) Synchronization +

(Brown) +V

(Blue) 0V

(Gray) Large multi-purpose indicator input 1 or (Gray/Black) Large multi-purpose indicator input 2

Functions

SF4C Safety light curtain

3.6 Auxiliary Output (Non-Safety Output)

The SF4C is equipped with an auxiliary output for non-safety-related purposes. The auxiliary output is incorporated with the emitter.

Auxiliary output setting

Test input activated

Negative logic of OSSD (factory setting)



NOTE

ON OFF ON ON

You can switch the output operation for auxiliary output with the handy controller.

Reception status

Control output (OSSD 1, OSSD 2)

Beam received

Beam blocked

OFF

7ms or less

Normal mode Control output (OSSD 1, OSSD 2) status

Beam received Beam blocked

90ms or less

Lockout

uxiliary output Negative logic of (OSSD 1

Time diagram

10ms or less

OFF

10ms or less

DANGER!

Do not use the auxiliary output to stop the machine as this could result in serious injury or death.

SF4C Safety light curtain

3.7 External Device Monitor Function

This is the function for checking whether the external safety relay connected to the control output (OSSD 1, OSSD 2) performs normally in accordance with the control output (OSSD 1, OSSD 2) or not. If any abnormality such as a deposit on the contacting point, etc. is detected, the status of the sensor changes to lockout and the control output (OSSD 1, OSSD 2) is turned to OFF.

• When the external device monitor function is activated: Connect the external device monitor input to the external safety relay of the control output (OSSD 1, OSSD 2).

• When the external device monitor function is deactivated: Connect the external device monitor input to the auxiliary output. By default, the auxiliary output is set to negative logic of the control output (OSSD 1, OSSD 2). The setting can be changed with the handy controller. In this case, the auxiliary output cannot be connected to external devices.



NOTE

You can deactivate the external device monitor function or change the time range with the handy controller.

Reception status

Control output (OSSD 1, OSSD 2)

External device monitor input

Beam received

Beam blocked

OFF

7ms or less

300ms or less

90ms or less

300ms or less

Time diagram - normal operation

The setting time of the device monitor is 300ms or less. Exceeding 300ms turns the device into the lockout status.

7ms or less

300ms

Lockout status

Reception status

Control output (OSSD 1, OSSD 2)

External device monitor input

Beam received

Beam blocked

OFF

Functions

Time diagram - error 1

SF4C Safety light curtain

Beam

Reception status

Control output (OSSD 1, OSSD 2)

External device monitor input

received Beam

blocked

OFF

Time diagram - error 2

90ms or less

300ms

Lockout status

SF4C Safety light curtain

3.8 Muting Function

DANGER!

3.8 Muting Function

The muting function deactivates the safety function of the light curtain temporarily. You can activate the muting function only if no workpiece is in the sensing area, this means the control outputs (OSSD 1, OSSD 2) have to be ON.

This function is useful for passing workpieces through the sensing area of the light curtain without stopping the machinery.

Incorrect use of the muting function may cause accidents. Please study the muting function carefully before you use it.

Use the muting function while the machine cycle is not in danger mode. Maintain safety by using other measures while the muting control is activated.

For applications where the muting function is used when a work piece passes through, place the muting sensors at such a distance so that personnel do not accidentally activate the muting function.

Be sure to check that the muting function is working properly before you use it in live operation. Check the state of the muting lamp for cleanliness, brightness, etc.

Always connect a muting lamp and use the preset muting lamp diagnosis function.

Install the muting lamp in a position where it can always be seen by operators who configure or adjust the machine.

The muting function complies with the requirements defined in the following international standards:

• ISO 13849-1 (EN 954-1/JIS B 9705-1): 'Safety of machinery - Safety-related

parts of control systems - Part 1: General principles for design, Article 5.9 Muting'

• IEC 61496-1 (UL 61496/JIS B 9704-1): 'Safety of machinery - Electro sensitive

protective equipment - Part 1: General requirements and tests' Annex A, A.7 Muting

• IEC 60204-1 (JIS B 9960-1): 'Safety of machinery - Electrical equipment of

machines - Part 1: General requirements, 9.2.4 Overriding safeguards'

• EN 415-4: 'Safety of packaging machines part 4. Palletizers and depalletizers'

Annex A, A2.2 Muting'

• ANSI B11.19-1990: 'for Machine Tools-Safeguarding When Referenced by the

Other B11 Machine Tool Safety Standards-Performance Criteria for the Design, Construction, Care, and Operation' 4.2.3 Presence-Sensing Devices: Electro-Optical and Radio Frequency (R.F.)

Functions

- ANSI/RIA R15.06-1999: 'for Industrial Robots and Robot Systems - Safety

Requirements, 10.4.5 Muting'

The muting function is active when all the conditions listed below are satisfied:

• The control output (OSSD 1, OSSD 2) is ON.

• The safety output 1/2 is ON

• The time frame in which the muting input 1/2 switches from OFF to ON and vice versa

should be between 0.03 to 3s.(Note 1)

• The incandescent lamp with 1.5 to 6W is connected to the muting lamp output. (The muting lamp diagnosis function is inactive at the time of factory setting.) (Note 2)



NOTE

1. Only 0 to 3s is allowed if you connect the NO (Normally Open) type muting sensor to input 1 and the NC (Normally Closed) type muting sensor to input

2. For these settings you can use the handy controller SFC-HC (optional).

2. The muting lamp diagnosis function can be set with the handy controller SFC-HC (optional).

SF4C Safety light curtain

3. If the muting lamp diagnosis function is activated and the lamp is not connected or burnt out, the muting function becomes inactive.

4. Although the muting time at the factory setting has no limit, the muting time can be changed in units of 1s in the range of 1 to 600s by the handy controller SFC-HC (optional).

5. Photoelectric sensors with semiconductor output, inductive proximity sensors, position switches on NO (Normal Open) contacting point, etc. can be used as muting sensors.

3.8.1 Specification for the Muting Sensor

The muting sensors can be photoelectric sensors, inductive proximity sensors, or position switches etc. They have to be in the ON state if an object is sensed. For NPN output this means 0V, for PNP output +V.

SF4C Safety light curtain

DANGER!

3.8 Muting Function

muting sensor mentioned above. If you use a different device that does not meet the requirements of a muting sensor, the muting function may operate with a different timing than expected, which could result in serious injury or death.

Always connect a muting lamp to make the status of the function visible. It is forbidden to activate the muting function if no muting lamp is connected.

3.8.2 Installation of the Muting Sensor

Only use a device that satisfies the specification for the

Muting sensor B Light curtain

Muting sensor A

Guard

Object to be

sensed

Guard

Safety zone Dangerous zone

Muting

sensor A

S (m/s)

Muting

sensor C

Muting sensor C

Muting sensor D

Muting

sensor B

1. The distance between muting sensors A to C and between B to D must be shorter than the whole length of the object to be sensed.

2. The distance between muting sensors A to B has to be covered by the object to be sensed in 30ms to 3 seconds. (S = speed) Distance between A and B: S x 3 (s)

3. The distance between muting sensors C to D has to be covered by the object to be sensed in less than 3 seconds. Distance between C and D: S x 3 (s)

Muting

sensor D

+V +V

Muting input 1 Muting input 2

Functions

Installing the muting sensor with PNP output

SF4C Safety light curtain

Muting

sensor A

Muting input 1 Muting input 2

Muting

sensor C

0V 0V0V 0V

Muting

sensor B

Installing the muting sensor with NPN output

Muting sensor A

Muting sensor B

Muting sensor C

Muting sensor D

Muting function

Reception status

Control output (OSSD 1, OSSD 2)

OFF

Beam received

Beam blocked

OFF

30ms to less than 3 sec.

50ms to 1 sec. (Note 1)

Time diagram of the muting function

Muting

sensor D

7ms or less



NOTE

1. When the diagnosis function for the muting lamp is active: If the muting lamp does not light up after 1s, the muting function is deactivated. When diagnosis function for the muting lamp is not active: The muting function is activated with a delay of 50ms after the input conditions of the muting sensor A (C) and B (D) are satisfied.

2. We recommend connecting two muting lamps in parallel. Do not exceed 6W.

SF4C Safety light curtain

3.8 Muting Function

3.8.3 Installation Only for the Exit of the Object

With the handy controller version 2.0 the muting function can be set only for the exit of the object to be sensed. In this case install the muting sensors only in the dangerous zone; the installation in the safety zone is not required.

This kind of installation is only applicable if the following conditions are met:

- The object to be sensed should move to one side.

- The object to be sensed should move from the dangerous zone to the safety zone.

- The object to be sensed should pass through the sensing area within 4 seconds

after the muting sensor turns OFF. (Note)



Installation example only for the exit of the object to be sensed

NOTE

The time setting can be done from 0 to 4s in steps of 0.1ms by the handy controller see page

84.

Light curtain

Guard

1. The object to be sensed shall pass through the muting sensors A to B in

0.03 to 3s.

2. The object to be sensed shall pass from muting sensor A to the light curtain in 4s or less.

3. The object to be sensed shall pass from the safety light curtain to the end of the guard zone in 4s or less.

Muting sensor A

Muting sensor B

Object to be

sensed

Dangerous zone

S (m/s)

Safety zone

Distance between A and B: S x 3s S = Moving speed (m/s) of the object.

Distance between muting sensor A and light curtain (m) B: S x 4s

Distance between muting sensor A and the light curtain < Total length of the object (m)

S = Moving speed (m/s) of the object. Distance between the light curtain and the end of the guard

zone < S x 4s - 0.2 S = Moving speed (m/s) of the object.

Functions



The number of the necessary muting sensors between both installation types differs:

SF4C Safety light curtain

NOTE

- 4 sets for the muting functions

- 2 sets for the muting function used only for the exit of the object to be

sensed.

SF4C Safety light curtain

3.9 Override Function

This function enables you to override the machine stop signal and to enter the muting state. It is used to restart the system smoothly when the sequence of operations is incorrect or in case of power loss.

If this function is used, it forcibly deactivates the safety function of the light curtain. The override function is used when the muting function is active, something happened which stopped the operation (as described above) and the operation then needs to be restarted again with the control output (OSSD 1, OSSD 2) in OFF status (e.g. there is still some material in the detection field of this device which needs to be moved out of the detection field before the safety function can be reactivated).

DANGER!



The muting function complies with the requirements defined in the following international standards:

Incorrect use of the muting function may cause accidents. Please study the muting function carefully before you use it.

Use the muting function while the machine cycle is not in danger mode. Maintain safety by using other measures while the muting control is activated.

For applications where the muting function is used when a work piece passes through, place the muting sensors at such a distance so that personnel do not accidentally activate the muting function.

Be sure to check that the muting function is working properly before you use it in live operation. Check the state of the muting lamp for cleanliness, brightness, etc.

Always connect a muting lamp and use the preset muting lamp diagnosis function.

Install the muting lamp in a position where it can always be seen by operators who configure or adjust the machine.

If you use the override function make sure that there is no operator in the dangerous zone, otherwise this could result in serious injury or death.

NOTE

• ISO 13849-1 (EN 954-1/JIS B 9705-1): 'Safety of machinery - Safety-related

parts of control systems - Part 1: General principles for design, Article 5.9 Muting'

• IEC 61496-1 (UL 61496/JIS B 9704-1): 'Safety of machinery - Electro sensitive

protective equipment - Part 1: General requirements and tests' Annex A, A.7 Muting

Functions

SF4C Safety light curtain

• IEC 60204-1 (JIS B 9960-1): 'Safety of machinery - Electrical equipment of

machines - Part 1: General requirements, 9.2.4 Overriding safeguards'

• EN 415-4: 'Safety of packaging machines part 4. Palletizers and depalletizers'

Annex A, A2.2 Muting'

• ANSI B11.19-1990: 'for Machine Tools-Safeguarding When Referenced by the

Other B11 Machine Tool Safety Standards-Performance Criteria for the Design, Construction, Care, and Operation' 4.2.3 Presence-Sensing Devices: Electro-Optical and Radio Frequency (R.F.)

• ANSI/RIA R15.06-1999: 'for Industrial Robots and Robot Systems - Safety

Requirements, 10.4.5 Muting'

The override function is active when all the conditions listed below are satisfied:

• The safety output 1/2 is ON.

• The signal is input to either muting input 1 or 2 or to both of the inputs.

• The override input is connected to 0V (for NPN output) or +V (for PNP output), and the

test input/reset input is opened (for 3 seconds).

If any of the three conditions above is not satisfied or takes longer than 60 seconds, the override function is deactivated.

Open

Within 1 sec.

Test input/reset input

Override input

Muting sensor

Muting sensor B/D

Override function

Sensing object in sensing area

Control output (OSSD 1, OSSD 2)

0V/+V

Open

0V/+V

OFF

Absent

Present

OFF

3 to 4 sec. (Note)

Override input time: Max. 60 sec.

7ms or less

90ms or less

Time diagram for the override function



NOTE

- When the diagnosis function for the muting lamp is active: If the muting

lamp does not light up after 1s, the muting function is deactivated.

SF4C Safety light curtain

- When the diagnosis function for the muting lamp is inactive: The muting

function starts 3s after the input conditions of the muting sensor A (C) and B (D) are satisfied.

3.9 Override Function

Functions

SF4C Safety light curtain

3.10 Functions of the Optional Handy Controller SFC-HC

You can set the following functions with the handy controller SFC-HC Ver. 2.0 (optional). For details, refer to the instruction manual enclosed with the handy controller.

DANGER!

object to be sensed, the response speed, etc. may differ depending on the selected function. When you set each function, recalculate the safety distance and install the device at a distance larger than the safety distance. Not keeping the distance may result in a situation where the machine does not stop quickly

Please note that the safety distance, the size of the minimum

Function Details

Fixed blanking [Fixed

blanking] Floating

blanking [Floating

blanking]

Auxiliary output switching (non-safety output)

[Auxiliary output]

Muting setting [Muting]

enough, resulting in serious bodily injury or death.

This function prevents the control output (OSSD 1, OSSD 2) from turning OFF even though the specific beam channel is blocked. By default, the fixed blanking function is not active. (Note 1)

This function prevents the control output (OSSD 1, OSSD 2) from turning OFF as long as not more than the set number of beam channels are blocked. The position of the blocked beam channels does not matter. You can set the floating blanking function for 1, 2, or 3 beam channels. By default, the floating blanking function is not active. (Note 1)

If you use the muting function for the exit of the object to be sensed together with the floating blanking function at the same time, make sure that the following settings are true:

The number of the beam channel for the floating blanking function can only be 0 or 1. If you used both end beam channels for the active floating blanking function, make sure that the

muting function is also active for this both end beam channels.

The auxiliary output can be switched to execute the following functions:

0. Negative logic of the control output (OSSD 1, OSSD 2) (factory setting)

1. Positive logic of the control output (OSSD 1, OSSD 2)

2. Active test input: output OFF; inactive test input: output ON

3. Active test input: output ON; inactive test input: output OFF

4. For unstable incident beam: OFF (Note 2)

5. For unstable incident beam: ON (Note 2)

6. For muting: ON

7. For muting: OFF

8. For beam reception: ON, for beam blocked: OFF (Note 3)

9. For beam reception: OFF, for beam blocked: ON (Note 3)

10. Active safety input: ON

11. Active safety input: OFF

12. For lock out: OFF

13. For lock out: ON You can make the following settings for the muting function:

• You can activate the muting function per beam channel (Note 4). By default, the muting function is active for all beam channels.

• The maximum continuous effective time for the muting function can be set within a range of 1 to 600s in steps of 1s or without limits. The factory setting is without limitation.

SF4C Safety light curtain

Function Details

• The switching order of the muting sensor 1 and 2 can be set to define when the muting function shall become active. The factory setting is, that the muting function is active at whichever sensor switches first.

• If you use the function only for the exit of the object to be sensed you can define a time setting from 0 to 4s.

• The input operation of the muting input of the <SunxSF_Product> can be set with the

SFC-HC: The factory setting is NONO (Normally Open, Normally Open), (Note 5).

Override setting

[Safety input] Muting lamp

diagnosis [Muting] Safety input

setting [Safety input]

Large multi-purpose indictor setting

[Large multi-purpose indicator]

Interlock setting

[Interlock]

External device monitor setting

[Device monitor]

Password protection

[Sub-protect Monitor]

You can set the maximum time for the override function in the range of 1 to 600 seconds in steps of 1 second.

The diagnosis function for the muting lamp can be active or inactive (Note 6). The factory setting is active.

You can select between the safety contacting point input mode (factory setting) or the safety sensor input mode, to connect one of the both. Furthermore you can deactivate the function; then no safety contact or sensor can be connected. For further information see " Function" on page

One mode can be selected from eight modes: The factory setting is mode 0. Furthermore it can be set to blink red in lock out status.

You can choose between three settings: Start/Restart interlock: The sensor goes into interlock state after the power is turned on or when

the light is blocked. This is the factory setting.

Start interlock: The sensor goes into interlock state when the power supply is turned on. Once t

his interlock state is reset, the SF4C does not go into the interlock state again.

Restart interlock: The sensor does not go into the interlock state when the power supply is turned

on. Only when the control output (OSSD 1, OSSD 2) turns ON and the light is blocked, the sensor goes into the interlock state.

You can make the following settings for the external device monitor: Permissible response time: 100 to 600ms (unit: 10ms). The factory setting is 300ms. The external device monitor function can be active or inactive. The factory setting is active.

When this function is active, you need to enter the password to change the settings of the sensor. The factory setting is inactive.

3.10 Functions of the Optional Handy Controller SFC-HC

Safety Input

63.



NOTE

1. The fixed blanking function and floating blanking function can be set at the same time.

2. The auxiliary output cannot be used when the functions fixed blanking, floating blanking or muting are activated.

3. Functions 8 and 9 cannot be used when you have activated one of the following functions: fixed blanking, floating blanking, and muting.

Functions

4. If a beam channel is blocked that is not set during the muting function, the

5. The factory setting for the input operation is NONO (Normally Open,

SF4C Safety light curtain

muting function will be deactivated and the control output (OSSD 1, OSSD 2) is turned off.

Normally Open). You can set the input operation to NONC (Normally Open, Normally Closed). Connect a sensor or switch with an output operation of NO (Normally Open) to muting input 1 and a sensor or switch with an output operation of NC (Normally Closed) to muting input 2. To activate the muting function, the time between the muting input 1 turning ON from OFF (= open state) and the muting input 2 turning OFF (= open state) from ON must be no longer than 3 seconds. The output operation for NONC works as follows:

Muting input

NO (Normally Open) type:

• ON when no light is received (photoelectric sensor, etc.)

• ON when object is approaching (inductive proximity sensor, etc.)

• ON when object has contact (position switch, etc.)

NC (Normally Closed) type:

• ON when light is received (photoelectric sensor, etc.)

• ON when no object is approaching (inductive proximity sensor, etc.)

• ON when no object has contact (position switch, etc.)

Operation at ON

state

0V or 24V DC Open

Operation at OFF

state

6. If the muting lamp diagnosis function is inactive, the muting function is maintained even if a lamp blows or a lamp is not connected.

Chapter 4

Operation

SF4C Safety light curtain

4.1 Normal Operation

The status of the emitter/receiver indicators during normal operation is as described as follows.

Indicator symbol Explanation

Blinks red

Lights up red Lights up orange Lights up green Turns off

Indicators

Emitter Receiver

Control

output

(OSSD 1,

OSSD 2)

Reception

state

All beams received

One or more beams blocked

Only top end blocked

Only bottom end blocked

RECEPTION

OFF

RECEPTION

OFF

RECEPTION

OFF

RECEPTION

SF4C Safety light curtain

Power supply

Reception status

OFF

Beam received

Beam blocked

2ms or less

90ms or less

7ms or less

4.1 Normal Operation

90ms or less

Control output (OSSD 1, OSSD 2)

Time diagram



NOTE

1. The figure shows the status of the emitter/receiver indicators during operation when you are using a PNP output. When you are using an NPN output, the NPN indicator lights up orange.

2. Since the color of the operation indicator changes according to whether the control outputs (OSSD 1, OSSD 2) are ON or OFF, the operation indicator on the light curtain is marked 'OSSD'.

OFF

Operation

SF4C Safety light curtain

4.2 Using the Test Input Function

The safety light curtain incorporates the test input function. With this function you can simulate the status when the beam is blocked.

Indicator symbol Explanation

1 Before the power

is on connect the test input to Vs

(Note 1)

Lights up red Lights up orange Lights up green Turns off

Emitter Receiver

Indicators Setting procedure

Control

output

(OSSD 1,

OSSD 2)

OFF

2 After the power is

on the control output (OSSD 1/2) of the receiver is on (normal operation).

(Note 2)

3 Open the test

input/reset input to switch the receiver's control output (OSSD 1/2) to off.

(Note 3)

4 Connect the test

input/reset input to Vs (Note 1) to switch the receivers control output back to on (normal operation).

(Note 2)



NOTE

1. Vs is the applied supply voltage.

RECEPTION

OFF

RECEPTION

SF4C Safety light curtain

2. The figure shows the status of the emitter/receiver indicators during operation when you are using a PNP output. When you are using an NPN output, the NPN indicator lights up orange.

3. Since the color of the operation indicator changes according to whether the control outputs (OSSD 1, OSSD 2) are ON or OFF, the operation indicator on the light curtain is marked 'OSSD'.

4.2 Using the Test Input Function

Operation

SF4C Safety light curtain

4.3 When an Error Occurs

If a sensor error is detected, the sensor will turn the control output (OSSD 1, OSSD 2) OFF. Then the digital error indicator (red) on the receiver lights up and the fault indicator (yellow) on the emitter and receiver lights up or blinks.

• If an emitter error is detected, the emitter will be locked out, stopping its emission, and the control output (OSSD 1, OSSD 2) will be turned OFF.

• If a receiver error is detected, the receiver will be locked out, and the control output (OSSD 1, OSSD 2) will be turned OFF. Also, the test input indicator (orange) of the emitter lights up.

Indicator symbol Explanation

Blinks yellow

Lights up orange Lights up green Turns off

Emitter Receiver

Setting

procedure

Normal state (Note 1 and 2)

Indicators

Control

output

(OSSD 1,

OSSD 2)

Error state (Note 1 and 2)



1. The figure shows the status of the emitter/receiver indicators during

2. Since the color of the operation indicator changes according to whether the

3. To remove the source of the error (see page

NOTE

RECEPTION

OFF

RECEPTION

operation when you are using a PNP output. When you are using an NPN output, the NPN indicator lights up orange.

control outputs (OSSD 1, OSSD 2) are ON or OFF, the operation indicator on the light curtain is marked 'OSSD'.

103).

SF4C Safety light curtain

4.4 Using the Muting Input Function

The muting function deactivates the safety function of the light curtain temporarily. You can activate the muting function only if no work piece is in the sensing area, this means the control outputs (OSSD 1, OSSD 2) have to be ON.

This function is useful for passing work pieces through the sensing area of the light curtain without stopping the machinery.

Indicator symbol Explanation

Lights up orange Lights up green Turns off

Emitter Receiver

Indicators

Control

output

(OSSD 1,

OSSD 2)

Setting

procedure

The muting sensor is OFF

(Note 1, 2)

Muting sensor is ON

Muting input 1: ON

Muting input 2: ON

Muting sensor is ON

Muting input 1: ON

Muting input 2: OFF

Muting sensor is ON

Muting input 1: OFF

Muting input 2: ON



NOTE

1. The figure shows the status of the emitter/receiver indicators during operation when you are using a PNP output. When you are using an NPN output, the NPN indicator lights up orange.

RECEPTION

Panasonic SF4C-H28, SF4C-H24, SF4C-H32 User guide

Specifications and Main Features

Frequently Asked Questions

User Manual

BEFORE BEGINNING

Important Symbols

Table of Contents

Introduction

1.1 Target Group

1.2 Safety Instructions

1.3 Applicable Standards and Regulations

Before Using this Device

2.1 Confirmation of Packed Contents

2.2 Features

2.3 Part Description

2.3.1 How the Display Works

2.3.2 Operation of Large Multi-Purpose Indicator

2.4 Protection Area

2.4.1 Sensing Area

2.4.2 Safety Distance

2.4.2.1 Calculation Example for Europe

2.4.2.2 Calculation Example for US

2.4.3 Influence of Reflective Surface

2.4.4 Device Placement

2.5 Mounting

2.5.1 Mounting with Standard Mounting Bracket

2.5.2 Mounting with Multifunctional Mounting Bracket MS-SFC-3 (optional)

2.5.3 Dead Zoneless Mounting

2.5.4 Mounting the Intermediate Supporting Bracket MS-SFC-4

2.5.5 Mounting the Protective Metal Case

2.6 Wiring

2.6.1 Power Supply Unit

2.6.2 PNP Output

2.6.3 NPN Output

2.6.4 Output Signal during Self-Diagnosis

2.6.5 Connecting Procedure and Pin Assignment

2.6.6 Basic Wiring

2.7 Wiring Examples

2.7.1 Manual Reset When Interlock is Active

2.7.2 Auto-Reset When Interlock is Inactive (Control Category 4)

2.7.3 Active Safety Input Function (Control Category 4)

2.7.4 Inactive External Device Monitor Function (Control Category 4)

2.7.5 Active Muting Function (Control Category 4)

2.7.6 Beam-axis Alignment

2.7.7 Operation Test

Functions

3.1 Self-Diagnosis Function

3.2 Interlock Function

3.4 Safety Input Function

3.4.1 Serial Connection and Response Time

3.4.2 Wiring Example for Safety Contact

3.4.3 Wiring Example for Safety Sensor

3.5 Large Multi-purpose Indicator Function

3.5.1 Wiring Example of the Large Multi-Purpose Indicator

3.6 Auxiliary Output (Non-Safety Output)

3.7 External Device Monitor Function

3.8 Muting Function

3.8.1 Specification for the Muting Sensor

3.8.2 Installation of the Muting Sensor

3.8.3 Installation Only for the Exit of the Object

3.9 Override Function

3.10 Functions of the Optional Handy Controller SFC-HC

Operation

4.1 Normal Operation

4.2 Using the Test Input Function

4.3 When an Error Occurs

4.4 Using the Muting Input Function