Page 1
Manual SEN TRONIC Rugghölzli 2 Tel. +41 (0)56 222 38 18 mailbox@sentronic.com CH - 5453 Busslingen Fax +41 (0)56 222 10 12 www.sentronic.com Produkte, Support und Service...
Page 2
BEFORE BEGINNING 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.
Page 3
Important Symbols One or more of the following symbols may be used in this documentation: DANGER! The warning triangle indicates especially important safety instructions. If they are not adhered to, the results could be fatal or critical injury. 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.
Page 4
KEY POINTS Summarizes key points in a concise manner. SHORTCUTS Provides helpful keyboard shortcuts. EXPLANATION Provides brief explanation of a function, e.g. why or when you should use it. next page Indicates that the text will be continued on the next page. SEN TRONIC Rugghölzli 2 Tel.
Page 5
SEN TRONIC Rugghölzli 2 Tel. +41 (0)56 222 38 18 mailbox@sentronic.com CH - 5453 Busslingen Fax +41 (0)56 222 10 12 www.sentronic.com Produkte, Support und Service...
Table of Contents Safety Light Curtain SF4B Table of Contents Introduction................10 Target Group.................... 11 Safety Instructions ................... 12 Applicable Standards/Regulations ............15 Before Using the Device ............17 Features....................18 Part Description ..................19 2.2.1 How the Display Works ................20 Protection Area ..................24 2.3.1...
Page 7
Table of Contents Safety Light Curtain SF4B Wiring ...................... 47 2.5.1 PNP Output ....................48 2.5.2 NPN Output ....................50 2.5.3 Power Supply Unit ..................51 2.5.4 Output Signal during Self-Diagnosis ............52 2.5.5 Connecting Procedure and Connector Pin Assignment......52 2.5.6 Basic Wiring....................55 2.5.7 Wiring Examples..................57...
Page 8
Safety Light Curtain SF4B Table of Contents Override Function ..................95 Functions of the Optional Handy Controller SFB-HC....... 98 Operation................101 Normal Operation................... 102 When Using the Emission Halt Function..........109 When an Error Occurs ................112 Maintenance ................115 Daily Inspection Checklist ..............116 Periodic Inspection Checklist (Every Six Months)........
Page 9
Safety Light Curtain SF4B Specifications..............129 Common Specifications................. 130 Specifications by Model Numbers ............133 7.2.1 Model Numbers SF4B-Fxx with 10mm Beam Pitch .......134 7.2.2 Model Numbers SF4B-Hxx with 20mm Beam Pitch.......135 7.2.3 Model Numbers SF4B-Axx with 40mm Beam Pitch.......136 Options ....................
Page 10
Safety Light Curtain SF4B Table of Contents Dimensions .................147 Mounting Dimensions ................148 8.1.1 Rear Mounting with Standard Mounting Bracket (MS-SFB-1) ....148 8.1.2 Side Mounting with Standard Mounting Bracket (MS-SFB-1)....150 8.1.3 Rear Mounting with Dead Zoneless Mounting Bracket (MS-SFB-3)..152 8.1.4 Side Mounting with Dead Zoneless Mounting Bracket (MS-SFB-3) ..154...
1.1 Target Group 1.1 Target Group Thank you for purchasing the Safety Light Curtain from the SF4B series (hereinafter called 'this device'). 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.
Introduction Safety Light Curtain SF4B 1.2 Safety Instructions • Use this device as per its specifications. Do not modify this device since its functions and capabilities may not be maintained and it may malfunction. • This device has been developed/produced for industrial use only.
Page 14
Safety Light Curtain SF4B 1.2 Safety Instructions Installation • Always keep the correctly calculated safety distance between this device and the dangerous parts of the machine. • Install an extra protection structure around the machine so that the operator must pass through the sensing area of this device to reach the dangerous parts of the machine.
Page 15
Introduction Safety Light Curtain SF4B • When this device is used in Korea as a product conforming to the Korean S-mark, the power line cable connected to this device should be no longer than 10m. • Do not control the device at only one control output (OSSD 1, OSSD 2).
Before Using the Device Safety Light Curtain SF4B 2.1 Features This device is a light curtain with the following features. • No special controller is required. • Control output (OSSD 1, OSSD 2) is available with PNP or NPN output.
The receiver displays its status on the display section. Beam channel The light-emitting elements of the emitter and the light-receiving elements of the receiver are placed at the following intervals: 10mm (SF4B-F ), 20mm (SF4B-H ), and 40mm (SF4B-A ). Standard mounting Use this bracket to mount the emitter/receiver.
(optional) Intermediate Use this bracket in the following situations: Mounting SF4B-F with more than 79 beam supporting bracket channels, SF4B-H with more than 40 beam channels or for SF4B-A with more than (Accessory) 20 beam channels.
Page 22
Safety Light Curtain SF4B 2.2 Part Description Emitter Function Description notes 2 and 3 115 to 130%): OFF When unstable light is received (incident beam: 100 to 115%): lights up orange When light is blocked: OFF Fault indicator When a fault occurs in the sensor: lights up or...
Page 23
Before Using the Device Safety Light Curtain SF4B Receiver Function Description When the top block receives light: lights up red Top end When the top end receives light: blinks red When the control output (OSSD 1, OSSD 2) is Beam-axis...
Page 24
Safety Light Curtain SF4B 2.2 Part Description Receiver Function Description NPN indicator When the NPN output is set: lights up [NPN] (orange) Function setting When blanking function is used: lights up indicator When connecting the handy controller: blinks [FUNCTION], note 4...
The sensing height is determined by the number of beam channels. The sensing range depends on the device type: 0.3 to 9m for SF4B-H (12 to 64 beam channels) and SF4B-A (6 to 32 beam channels), 0.3 to 7m for SF4B-F and SF4B-H (72 to 96 beam channels) as well as SF4B-A (36 to 48 beam channels).
Page 26
Safety Light Curtain SF4B 2.3 Protection Area Example of correct installation Sensing Protective structure Dangerous area Dangerous part part Sensing area Example of incorrect installation Sensing area Sensing area Dangerous Dangerous part part SEN TRONIC Rugghölzli 2 Tel. +41 (0)56 222 38 18 mailbox@sentronic.com...
Before Using the Device Safety Light Curtain SF4B 2.3.2 Safety Distance DANGER! 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.
Page 28
Safety Light Curtain SF4B 2.3 Protection Area DANGER! Before designing the system, refer to the relevant standards of the 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.
Before Using the Device Safety Light Curtain SF4B 2.3.2.1 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 40mm or less:...
Page 30
Safety Light Curtain SF4B 2.3 Protection Area EXAMPLE Calculate the safety distance with the following values: 2,000mm/s 0.1s 14ms SF4B 14mm With these values, the calculation is as follows: = K x T + C = K x (T ) + 8 x (d - 14) SF4B = 2,000 x (0.1 + 0.014) + 8 x (14 - 14)
Page 31
Before Using the Device Safety Light Curtain SF4B As 662.4 is > 500mm, use this recalculated result as the safety distance. Formula in case that the minimum sensing object is 40mm or more: S = K x T + C...
Safety Light Curtain SF4B 2.3 Protection Area 2.3.2.2 Calculation Example for the US The equation safety distance S is calculated in accordance with ANSI B11.19 with the formula: S = K x (T ) + Dpf SF4B Safety distance (mm) Minimum distance required between the sensing area surface and the dangerous parts of the machine.
Page 33
Before Using the Device Safety Light Curtain SF4B • 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.
L x tan ∂ = L x 0.052m (∂ = 3°) 3 to 7m (SF4B-F and SF4B-H (72 to 96 beam channels) and SF4B-A (36 to 48 beam channels)) 3 to 9 m (for SF4B-H (12 to 64 beam channels) and SF4B-A (6 to 32 beam channels)) SEN TRONIC Rugghölzli 2...
Before Using the Device Safety Light Curtain SF4B NOTE The effective aperture angle for this device is ±2.5° (when L > 3m) as required by IEC 61496-2/UL 61496-2. However, install this device away from reflective surfaces considering an effective aperture angle of ±3° to account for beam misalignment, etc.
Page 36
Safety Light Curtain SF4B 2.3 Protection Area Example: 1) Install the emitters or the receivers back to 2) Arrange the emitters and the receivers back vertically on opposite sides. 3) Arrange the emitters and the receivers 4) Install a barrier horizontally on opposite sides.
Before Using the Device Safety Light Curtain SF4B 2.4 Mounting There is no mounting bracket included with the device. Please purchase the mounting bracket appropriate for your installation environment. The following types of mounting brackets are available. • Standard mounting bracket (MS-SFB-1) (see page 36) •...
Page 38
Safety Light Curtain SF4B 2.4 Mounting Procedure 1. Loosen the hexagon-socket head bolt (M4, length: 6mm) Hexagon-socket head bolt for alignment M4 (length: 6mm) 2. Rotate the bracket to adjust the installation direction of emitter and receiver 3. Tighten and fix the hexagon-socket head bolt for alignment The tightening torque should be 2N•m or less.
Before Using the Device Safety Light Curtain SF4B The tightening torque should be 1.2N•m or less. 7. Mount the standard mounting bracket (MS-SFB-1) on the mounting surface using either four M5 hexagon-socket head bolts or two M8 hexagon-socket head bolts The M5/M8 bolts are not supplied with the safety light curtain.
Page 40
Safety Light Curtain SF4B 2.4 Mounting 2. Insert the side of the safety light curtain into the intermediate supporting bracket Unit Fit the pits and projectiles of both side surfaces ofthis device to those of both side inner surfaces of the intermediate supproting bracket.
Before Using the Device Safety Light Curtain SF4B 2.4.1.3 Dead Zoneless Mounting Bracket MS-SFB-3 Use this bracket when connecting units in series to prevent dead zones at the interfaces. Rear mounting and side mounting are possible. Procedure 1. Set the spacer attached to the dead zoneless mounting bracket onto the mounting hole on the side of the top (bottom) end part of the unit 2.
Safety Light Curtain SF4B 2.4 Mounting The M5 bolts are not supplied with the dead zoneless mountign bracket. Rear mounting Side mounting Dead zoneless mounting Hexagon-socket head bolt [M5] Dead zoneless mounting bracket (MS-SFB-3) bracket (MS-SFB-3) (Optional) (Optional) Unit Hexagon-socket head bolt [M5] Unit 2.4.1.4 Protect-Bar Mounting Bracket MC-SFBH-□...
Page 43
Before Using the Device Safety Light Curtain SF4B Marks are engraved on the protect-bar mounting bracket so you can adjust the direction (see page 78) of the emitter/receiver in steps of 30 degrees. Rear mounting Side mounting 30° Rear 0°...
2.4.2 Mounting of the Bottom Cap Cable The cable is optional and is not enclosed with the SF4B safety light curtain. There are four types bottom cap cables (see following table). The cable length is reflected in the model no.
Before Using the Device Safety Light Curtain SF4B 2. Tighten the two M2.6 screws The tightening torque should be 0.3 N•m or less. M2.6 screw (Enclosed with the bottom cap cable) 2.4.3 Mounting and Dismantling of a Series Connection This section describes how to mount the cable for series connection. It is possible to connect a maximum of three sets of light curtains.
Page 46
Safety Light Curtain SF4B 2.4 Mounting • Do not pull the cables before tightening the M2.6 screws. Good Not good Fixed with M2.6 Not fixed with screws M2.6 screws • Do not insert the connector incorrectly and tighten the M2.6 screws.
Page 47
Before Using the Device Safety Light Curtain SF4B The tightening torque should be 0.3 N•m or less. M2.6 screw Enclosed with the cable for series connection Subsystem Main system (Bottom side) (Upper side) NOTE • Please note that the shape of the connectors for the bottom side and for the end cap side on the cable for series connection (SFB-CSL ) is different.
Safety Light Curtain SF4B 2.5 Wiring 2.5 Wiring DANGER! 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.
Before Using the Device Safety Light Curtain SF4B 2.5.1 PNP Output Wiring diagram for PNP output with a 12-core cable Emitter Color code (Brown) +V (Red) Muting lamp output (Yellow-green/Black) Auxiliary output (Gray) Interference prevention + 24V DC (Gray/Black) Interference prevention - ±...
Page 50
Safety Light Curtain SF4B 2.5 Wiring Symbols in the wiring diagram • Emission halt Switch S1 When manual reset is activated: input/Reset input • Vs to Vs - 2.5V (sink current: 5mA or less): Emission halt • Open: Emission When auto-reset is activated: •...
Safety Light Curtain SF4B 2.5 Wiring Symbols in the wiring diagram • Emission halt Switch S1 When manual reset is activated: input/Reset input • 0 to + 1.5V (source current: 5mA or less): Emission halt • Open: Emission When auto-reset is activated: •...
Before Using the Device Safety Light Curtain SF4B • The power supply unit must have an output holding time of 20ms or more. • The frame ground (F.G.) terminal must be connected to ground when using a commercially available switching regulator.
Page 54
Safety Light Curtain SF4B 2.5 Wiring No. of light curtain sets Maximum cable length (emitter/receiver) 1 set 50m (40m, if a muting lamp is used) 2 sets 3 sets NOTE • When you need to extend the synchronization wire with a cable other than the exclusive cable, use a shielded twisted-pair cable with a diameter of 0.2mm2 or more.
Page 55
Before Using the Device Safety Light Curtain SF4B 8-core cable SFB-CC Cable/connector color Pin No. Lead wire color Description Emitter Gray/Gray Pale purple Interlock setting input Brown 24V DC Pink Emission halt input/Reset input Yellow-green/Black Auxiliary output Orange Synchronization +...
Safety Light Curtain SF4B 2.5 Wiring 12-core cable SFB-CC -MU Cable/connector color Pin No. Lead wire color Description Emitter Gray/Gray Pale purple Interlock setting input Brown 24V DC Pink Emission halt input/Reset input Yellow-green/Black Auxiliary output Orange Synchronization + Orange/Black...
Page 57
Before Using the Device Safety Light Curtain SF4B Feature Setting Interlock function (see page 85) Deactivated (Auto-reset) External device monitor function (see page 89) Deactivated Auxiliary output (see page 88) Not available Basic wiring for PNP output with a 12-core cable...
Before Using the Device Safety Light Curtain SF4B 2.5.7.2 Series Connection (Control Category 4) This is the configuration for connecting up to 3 sets of emitters and receivers in series with a maximum of 192 beam channels facing each other. It is used when the dangerous part can be accessed from two or more directions.
Page 62
Safety Light Curtain SF4B 2.5 Wiring Wiring for series connection of a 12-core cable with PNP output (Gray) (Gray / Black) (Red) (Yellow) (Brown) (Pale purple) (Pink) 24V DC (Yellow-green / Black) ±10% Load (Shield) (Blue) (Orange) (Orange / Black)
Page 63
Before Using the Device Safety Light Curtain SF4B NOTE The circuit diagrams shown above are for a 12-core cable. The 8-core cable uses the following wires: red, yellow, gray, gray/black, sky-blue/white, sky-blue/black. There is no lead wire. Wiring for series connection of a 12-core cable with NPN output...
Safety Light Curtain SF4B 2.5 Wiring 2.5.7.3 Parallel Connection (Control Category 4) This is the configuration for connecting multiple sets of emitters and receivers facing each other in parallel. It is used when there are two dangerous parts and each dangerous part can be accessed from only one direction.
Page 65
Before Using the Device Safety Light Curtain SF4B Parallel connection with PNP output (Gray) Master side (Gray / Black) (Red) (Yellow) (Brown) (Pale purple) (Pink) 24V DC (Yellow-green / Black) ±10% Load (Shield) (Blue) (Orange) (Orange / Black) (Orange / Black)
Page 66
Safety Light Curtain SF4B 2.5 Wiring Symbols in the wiring diagram • Vs to Vs - 2.5V (sink current: 5mA or less): Emission halt Switch S1 • Open: Emission K1, K2 External device (forcibly guided relay or magnetic contactor) Vs = Applied supply voltage NOTE •...
Page 67
Before Using the Device Safety Light Curtain SF4B Parallel connection with NPN output (Gray) Master side (Gray / Black) (Red) (Yellow) (Brown) (Yellow-green / Black) Load (Shield) 24V DC (Pink) ±10% (Pale purple) (Blue) (Orange) (Orange / Black) (Orange / Black)
Safety Light Curtain SF4B 2.5 Wiring Symbols in the wiring diagram • 0 to +1.5V (source current 5mA or less): Emission halt Switch S1 • Open: Emission K1, K2 External device (forcibly guided relay or magnetic contactor) NOTE • The OSSD output type (PNP or NPN) is determined by the connecting state of the shield wire.
Page 69
Before Using the Device Safety Light Curtain SF4B Mixed series and parallel connection with PNP output (Gray) Master side (Gray / Black) (Red) (Yellow) (Brown) (Pale purple) (Pink) 24V DC (Yellow-green / Black) ±10% Load (Shield) (Blue) (Orange) (Orange / Black)
Page 70
Safety Light Curtain SF4B 2.5 Wiring Symbols in the wiring diagram • Vs to Vs - 2.5V (sink current: 5mA or less): Emission halt Switch S1 • Open: Emission K1, K2 External device (forcibly guided relay or magnetic contactor) Vs = Applied supply voltage NOTE •...
Page 71
Before Using the Device Safety Light Curtain SF4B Mixed series and parallel connection with NPN output (Gray) Master side (Gray / Black) (Red) (Yellow) (Brown) (Yellow-green / Black) Load (Shield) 24V DC (Pink) ±10% (Pale purple) (Blue) (Orange) (Orange / Black)
Safety Light Curtain SF4B 2.5 Wiring Symbols in the wiring diagram • 0 to +1.5V (source current 5mA or less): Emission halt Switch S1 • Open: Emission K1, K2 External device (forcibly guided relay or magnetic contactor) NOTE • The OSSD output type (PNP or NPN) is determined by the connecting state of the shield wire.
Page 73
Before Using the Device Safety Light Curtain SF4B Symbols in the wiring diagram • Vs to Vs - 2.5V (sink current: 5mA or less): Emission halt Switch S1 • Open: Emission K1, K2 External device (forcibly guided relay or magnetic contactor)
Safety Light Curtain SF4B 2.5 Wiring 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 circuit diagrams shown above are for a 12-core cable. The 8-core cable uses the following wires: red, yellow, gray, gray/black, sky-blue/white, sky-blue/black.
Page 75
Before Using the Device Safety Light Curtain SF4B Symbols in the wiring diagram • Vs to Vs - 2.5V (sink current: 5mA or less): Emission halt Switch S1 • Open: Emission K1, K2 External device (forcibly guided relay or magnetic contactor)
Safety Light Curtain SF4B 2.5 Wiring 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 circuit diagrams shown above are for a 12-core cable. The 8-core cable uses the following wires: red, yellow, gray, gray/black, sky-blue/white, sky-blue/black.
Page 77
Before Using the Device Safety Light Curtain SF4B Symbols in the wiring diagram K1, K2 External device (forcibly guided relay or magnetic contactor) Vs = Applied supply voltage NOTE You must connect an incandescent lamp with 3 to 10W to the muting lamp output.
Page 78
Safety Light Curtain SF4B 2.5 Wiring Symbols in the wiring diagram • 0 to +1.5V (source current 5mA or less): Emission halt Switch S1 • Open: Emission Switch S2 Muting input, override input: • 0 to +1.5V (source current 5mA or less): Activated •...
Before Using the Device Safety Light Curtain SF4B 2.6 Adjustment The following sections contain information about the proper adjustment and operation of the safety light curtain. You must align the beam axis and test the light curtain in your application environment.
Page 80
Safety Light Curtain SF4B 2.6 Adjustment The emitter and the receiver can be adjusted ±15 degrees. Part A Hexagon-socket 30° 30° Part A head bolt for alignment 30° 30° Hexagon-socket head bolt for beam axis alignment 30° 30° Part B 30°...
Before Using the Device Safety Light Curtain SF4B 7. After the adjustment, tighten the hexagon-socket head bolt for beam axis alignment of the standard mounting bracket The tightening torque should be 2N•m or less. 8. Tighten the two intermediate supporting brackets 9.
Page 82
Safety Light Curtain SF4B 2.6 Adjustment 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 121) and report this to the maintenance staff in charge.
Page 83
SEN TRONIC Rugghölzli 2 Tel. +41 (0)56 222 38 18 mailbox@sentronic.com CH - 5453 Busslingen Fax +41 (0)56 222 10 12 www.sentronic.com Produkte, Support und Service...
Functions Safety Light Curtain SF4B 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.
(pale purple) is connected. You have to wire the SF4B accordingly to activate the interlock function and the manual reset. Without wiring the interlock function is disabled and auto reset is active.
Functions Safety Light Curtain SF4B 3.3 Emission Halt Function This function is used to test the functionality of the safety light curtain and the external devices. It stops the emission process of the emitter. You can select whether emission is on or halted by means of the connection status for the emission halt input/reset input wire (pink).
It is possible to construct the system in such a way that malfunction due to interference of light from other SF4B series devices is prevented. The interference prevention system works with up to three sets of sensors in series connection (see page 60). The maximum number of beam channels in series connection is 192.
Functions Safety Light Curtain SF4B 3.5 Auxiliary Output (Non-Safety Output) This device is equipped with an auxiliary output for non-safety-related purposes. The auxiliary output is incorporated with the emitter. Auxiliary output Normal mode Lockout setting Emission halt Control output (OSSD 1, OSSD 2) status...
Safety Light Curtain SF4B 3.6 External Device Monitor Function 3.6 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.
Page 91
Functions Safety Light Curtain SF4B If the device monitor function is active and an error occurs, it takes 300ms or less to set the device to lockout status. The time range can be set from 100 to 600ms (unit: 10ms) with the handy controller SFB-HC (optional).
Safety Light Curtain SF4B 3.7 Muting Function 3.7 Muting Function The muting function deactivates the protection 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.
Functions Safety Light Curtain SF4B • 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.
Safety Light Curtain SF4B 3.7 Muting Function 3.7.2 Installation of the Muting Sensor 1. The distance between muting Light Muting sensor C Muting sensor B sensors A to C and between B to curtain D must be shorter than the...
Page 95
Functions Safety Light Curtain SF4B Muting sensor A 30ms to less than 3 sec. Muting sensor B Muting sensor C Muting sensor D Muting function 14ms or less 50ms to 1 sec. (Note 1) Beam Reception status received Beam blocked...
Safety Light Curtain SF4B 3.8 Override Function 3.8 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.
Page 97
Functions Safety Light Curtain SF4B • 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'...
Page 98
Safety Light Curtain SF4B 3.8 Override Function Within 1 sec. Open Emission halt input / Reset input 0V, +V Open Override input 0V, +V Sensor A / C Sensor B / D 3 to 4 sec. (Note) 14ms or less Override input time: Max.
Functions Safety Light Curtain SF4B 3.9 Functions of the Optional Handy Controller SFB-HC You can set the following functions with the handy controller SFB-HC (optional). For details, refer to the instruction manual enclosed with the handy controller. DANGER! Please note that the safety distance, the size of the minimum object to be sensed, the response speed, etc.
Page 100
Safety Light Curtain SF4B 3.9 Functions of the Optional Handy Controller SFB-HC Function Details device monitor function is activated/deactivated. The factory setting is activated. [Device Monitor] Muting setting You can make the following settings for the muting function: [Muting] • When the muting function is active, you can specify the output order of the muting sensors A and B.
Page 101
SEN TRONIC Rugghölzli 2 Tel. +41 (0)56 222 38 18 mailbox@sentronic.com CH - 5453 Busslingen Fax +41 (0)56 222 10 12 www.sentronic.com Produkte, Support und Service...
Operation Safety Light Curtain SF4B 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 green Lights up orange NOTE 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'.
Page 104
Safety Light Curtain SF4B 4.1 Normal Operation Indicators Control output Emitter Receiver OSSD 1/OSSD 2 One or more Lights up red Lights up red beams blocked (OFF for channels where the (OFF for channels where the beam is blocked) beam is blocked)
Page 105
Operation Safety Light Curtain SF4B Indicators Control output Emitter Receiver OSSD 1/OSSD 2 Beams other than The bottommost beam-axis The bottommost beam-axis the bottom end alignment indicator: alignment indicator: blocked Blinks red Blinks red Operation indicator: OSSD indicator: Lights up red...
Page 106
Safety Light Curtain SF4B 4.1 Normal Operation The following figure shows the status of the indicators when the light is blocked for Subsystem Lights up Lights up Turns off orange Subsystem A3 Subsystem A3: light received status Emitter Receiver Beam-axis alignment indicator...
Page 107
Operation Safety Light Curtain SF4B NOTE 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'. The figure shows the status of the emitter/receiver indicators during operation when you are using a PNP output.
Page 108
Safety Light Curtain SF4B 4.1 Normal Operation The following figure shows the status of the indicators with the Slave side 1 sensor in light blocked status. Master side Slave side 1 Slave side 2 Synchronization wire Synchronization wire Synchronization wire...
Page 109
Operation Safety Light Curtain SF4B When the sensors are connected in parallel, the bottom of the digital error indicator on the slave side lights up red. However, when the slave side sensors are connected in series, only the indicator of the master side sensor lights up.
Safety Light Curtain SF4B 4.2 When Using the Emission Halt Function 4.2 When Using the Emission Halt Function The safety light curtain incorporates the emission halt function. With this function you can simulate the status when the beam is blocked.
Page 111
Operation Safety Light Curtain SF4B Indicator symbol Explanation Blinks orange Lights up red Lights up green Lights up orange Is OFF Setting procedure and Indicators Control check items output Emitter Receiver OSSD1 OSS2 Before power is Beam-axis alignment Beam-axis alignment...
Page 112
Safety Light Curtain SF4B 4.2 When Using the Emission Halt Function Setting procedure and Indicators Control check items output Emitter Receiver OSSD1 OSS2 Open the emission halt input Beam-axis alignment indicator Beam-axis alignment [RECEPTION] indicator [RECEPTION] Receiver's control output (OSSD 1,...
Operation Safety Light Curtain SF4B 4.3 When an Error Occurs If a sensor error is detected, the sensor will turn the control output (OSSD 1, OSSD 2) OFF, the digital error indicator (red) on the receiver lights up and the fault indicator (yellow) on the emitter and receiver lights up or blinks.
Page 114
Safety Light Curtain SF4B 4.3 When an Error Occurs Indicator symbol Explanation Blinks yellow Lights up red Lights up green Lights up orange Is OFF Emitter Receiver Beam-axis alignment Beam-axis alignment indicator [RECEPTION] indicator [RECEPTION] Operation indicator [OSSD] (note 1)
Page 115
SEN TRONIC Rugghölzli 2 Tel. +41 (0)56 222 38 18 mailbox@sentronic.com CH - 5453 Busslingen Fax +41 (0)56 222 10 12 www.sentronic.com Produkte, Support und Service...
Maintenance Safety Light Curtain SF4B 5.1 Daily Inspection Checklist When an error occurs, refer to the chapter on troubleshooting (see page 121) and report this to the maintenance staff in charge. If the problem cannot be solved, please contact our office.
Page 118
Safety Light Curtain SF4B 5.1 Daily Inspection Checklist Check column Inspection item The dangerous parts remain stopped as long as the test rod is present in the sensing area. The dangerous parts stop immediately when the power supply of this device is turned OFF.
Maintenance Safety Light Curtain SF4B 5.2 Periodic Inspection Checklist (Every Six Months) DANGER! Be sure to inspect the following items every six months and confirm that there is no error. Operating this device without inspection or in an error condition can result in serious injury or death.
Safety Light Curtain SF4B 5.3 Inspection after Maintenance 5.3 Inspection after Maintenance In the following situations, inspect all items mentioned in '5-1 Daily Inspection' and '5-2 Periodic Inspection (Every Six Months)'. • When any part of this device needs to be replaced.
Page 121
SEN TRONIC Rugghölzli 2 Tel. +41 (0)56 222 38 18 mailbox@sentronic.com CH - 5453 Busslingen Fax +41 (0)56 222 10 12 www.sentronic.com Produkte, Support und Service...
Troubleshooting Safety Light Curtain SF4B 6.1 Emitter-Related Problems When a problem occurs, please check the following items first: • Check the wiring. • Check the power supply voltage and the power supply capacity. • If the device does not work normally after checking the items listed below, please consult your local dealer.
Troubleshooting Safety Light Curtain SF4B 6.1.4 Emission Halt Indicator (Orange) Lights Up Error Cause Remedy Emission is in halt condition Error indicator (yellow) Check the contents of the digital error indicator. (Device error or interlock lights up or blinks. setting error)
Safety Light Curtain SF4B 6.2 Receiver-Related Problems 6.2 Receiver-Related Problems When a problem occurs, please check the following items first: • Check the wiring. • Check the power supply voltage and the power supply capacity. • If the device does not work normally after checking the items listed below, please consult your local dealer.
Page 127
Troubleshooting Safety Light Curtain SF4B Error Cause Remedy page 34) or use the interference prevention function (see page 87). [Digital error indicator: , OSSD 1 wire or OSSD 2 wire Wire the control output (OSSD 1, OSSD 2) short-circuits with +V or 0V.
Safety Light Curtain SF4B 6.2 Receiver-Related Problems Error Cause Remedy If it is not possible to locate and remedy the error, contact your local dealer. 6.2.3 Digital Error Indicator "C" Lights Up The following problems can cause the digital error indicator to light up:...
Page 129
SEN TRONIC Rugghölzli 2 Tel. +41 (0)56 222 38 18 mailbox@sentronic.com CH - 5453 Busslingen Fax +41 (0)56 222 10 12 www.sentronic.com Produkte, Support und Service...
Specifications Safety Light Curtain SF4B 7.1 Common Specifications Item 10mm Pitch Type 20mm Pitch Type 40mm Pitch Type SF4B-F SF4B-H SF4B-AF Detecting capability (Min. Ø14mm opaque object Ø25mm opaque object Ø45mm opaque object object to be sensed) ±2.5° or less for sensing range exceeding 3m (required by IEC 61496-2/UL 61496-2)
Page 132
Safety Light Curtain SF4B 7.1 Common Specifications Item 10mm Pitch Type 20mm Pitch Type 40mm Pitch Type SF4B-F SF4B-H SF4B-AF Vibration resistance 10 to 55Hz frequency, 0.75mm amplitude in X, Y, and Z directions for two hours each Shock resistance 300m/s2 acceleration (30G approx.) in X, Y, and Z directions for three times each...
Page 133
Specifications Safety Light Curtain SF4B DANGER! The functions of this device can be set with the optional handy controller SFB-HC. Please note that the safety distance, the size of the minimum object to be sensed, the response speed, etc. may differ depending on the function.
H: Beam pitch 20mm A: Beam pitch 40mm EXAMPLE The model no. SF4B-F55 represents the beam pitch type of 10mm and 55 beam channels. The specifications listed hereafter are sorted by beam pitch type and number of beam channels in ascending order.
Safety Light Curtain SF4B 7.3 Options 7.3 Options The following options are available: • Front protection cover (see page 137) • Different types of cables (see page 138) • Different types of brackets (see page 140) • Handy controller (see page 142) •...
Safety Light Curtain SF4B 7.3 Options 7.3.2.2 Extension Cable with Connector on One End You receive 2 pieces/set, one for the emitter (gray connector) and one for the receiver (black connector). Type Model No. Cable length Remarks 8-core discrete SFB-CC3 For extending the normal cable.
Specifications Safety Light Curtain SF4B 7.3.2.5 Cables for PNP/NPN Output You receive 2 pieces/set. Connector Type Model No. Cable length Remarks Connector SFB-CB05-A-P 0.5m For PNP output of the SF4-AH series. SFB-CB05-A-N For NPN output of the SF4-AH series. SFB-CB05-B-P For PNP output of the SF2-EH series.
You receive 4 pieces/set. Model No. Remarks MS-SFB-4 For replacing other SUNX light curtains (sensing height 200mm or more) with the SF4B series. Fix with two hexagon-socket head bolts [M5]. 7.3.3.4 M8 Pitch Adapter Bracket You receive 4 pieces/set. Model No.
Safety Light Curtain SF4B 7.3 Options Model No. Remarks SF-LAT-2N Convenient for aligning the beam channels. 7.3.6 Control Units The following control units are available. 7.3.6.1 Unit with Connectors You receive 1 piece. Model No. Remarks SF-C11 Conforms to European/North American safety standards. Applicable for 8-core cables with connector.
Specifications Safety Light Curtain SF4B 7.3.6.3 Miniature Unit You receive 1 piece. Model No. Remarks SF-C13 Conforms to European/North American safety standards. 7.3.6.4 Unit with Additional Functions You receive 1 piece. Model No. Remarks SF-C14EX Conforms to European/North American safety standards. It offers the muting function and the emergency stop input, which expand the applications of the light curtain.
Whether you need the supporting bracket for the protect bar or not depends on the length of the protect bar. We recommend using the supporting bracket for model no. MC-SF4B-48 and higher. As a rule, use the bracket when the protect bar bends a lot.
Dimensions Safety Light Curtain SF4B 8.1 Mounting Dimensions The following dimension diagrams show side and rear mounting with the standard and the dead zoneless bracket. 8.1.1 Rear Mounting with Standard Mounting Bracket (MS-SFB-1) (Unit: mm) Sensing height Display section Display...
Dimensions Safety Light Curtain SF4B 8.2 Mounting Bracket Dimensions The mounting bracket material is diecast zinc alloy. All units are in mm. 8.2.1 Standard Mounting Bracket (MS-SFB-1) R4.1 24.5 4-R2.8 R8.5 60° M5 (length 6) 30° 10.8 M5 (length 14) R18.4...
Glossary of Terms Glossary of Terms Control output (OSSD) Output Signal Switching Device. A component of the light curtain that turns off when light of the light curtain is blocked. EMC Directive On the one hand the directive relating to electromagnetic compatibility governs the electromagnetic emissions of this equipment in order to ensure that, in its intended use, such equipment does not disturb radio and telecommunication as well as other equipment.
Page 161
Glossary of Terms Safety Light Curtain SF4B use and the failure or malfunctioning of which endangers the safety or health of exposed persons". Main system For series connection, the system that provides the power supply and output for all sub systems.
Page 162
SEN TRONIC Rugghölzli 2 Tel. +41 (0)56 222 38 18 mailbox@sentronic.com CH - 5453 Busslingen Fax +41 (0)56 222 10 12 www.sentronic.com Produkte, Support und Service...
Page 163
SEN TRONIC Rugghölzli 2 Tel. +41 (0)56 222 38 18 mailbox@sentronic.com CH - 5453 Busslingen Fax +41 (0)56 222 10 12 www.sentronic.com Produkte, Support und Service...
Assignment..........52 Index Control output (OSSD)......159 Control Units .........143 Adjustment ..........78 Alignment indicator ....20, 78, 124 Daily Inspection Checklist.....116 Alignment tool ........142 Dead Zoneless Mounting Bracket..141 All Beam-axis Adjustment Indicators (Red) Dead Zoneless Mounting Bracket Light Up ........124, 127 (MS-SFB-3) ........158 All Indicators Are OFF....122, 125 Dead Zoneless Mounting Bracket MS-SFB-3..........40...
Page 165
Miniature Unit........144 Inspection checklist....116, 118, 119 Mixed Connection (Control Category 4) .67 Installation ........24, 34, 36 Model Numbers SF4B-Axx with 40mm Beam Pitch ........136 Installation of the Muting Sensor.....93 Model Numbers SF4B-Fxx with 10mm Interference ........ 34, 63, 67 Beam Pitch ........134...
Page 166
Index Safety Light Curtain SF4B Muting Function ........91 Muting Function (Control Category 4)..75 Rear mounting ......152, 154 Muting lamp ........88, 91 Rear Mounting with Dead Zoneless Mounting Bracket (MS-SFB-3) ..152 Rear Mounting with Standard Mounting Bracket (MS-SFB-1) ......148 Non-safety output........88 Receiver-Related Problems....125...
Page 167
Index Safety Light Curtain SF4B Specifications by Model Numbers..133 Standard Mounting Bracket (M5) ..140 Standard Mounting Bracket (MS-SFB-1) ............156 Standard Mounting Bracket MS-SFB-1 ..36 Sub system ...........160 Target Group...........11 Test rod ........80, 146, 160 Test Rod..........146 Troubleshooting ........121 UL1998..........160 Unit for Demanding Industrial Environments........143...
Page 168
Record of Changes Manual No. Date Description of Changes MEUEN-SF4B-V1.0 February 2009 1st European edition SEN TRONIC Rugghölzli 2 Tel. +41 (0)56 222 38 18 mailbox@sentronic.com CH - 5453 Busslingen Fax +41 (0)56 222 10 12 www.sentronic.com Produkte, Support und Service...
Need help?
Do you have a question about the SF4B and is the answer not in the manual?
Questions and answers