Category 4 No-Blind-Zone Safety Light Curtain (Incident Angle > 2.5°)

Brand :

MISUMI

Caution

As of Oct 2025, this product has SIL3 Class4 Certificate by ECM.
Certificate by TUV is under application phase.

Product Description

User Manual>>Click
Configuration Software>>Click
ECM SIL3 Certificate>>Click

Product Overview

This safety light curtain is a no-blind-zone light curtain designed in accordance with the IEC61508 SIL3 safety integrity level. Its internal MCU adopts a redundant design, and the dual-channel output features both periodic self-check and mutual check functions, providing comprehensive safety protection.
Comprehensive and complete self-check functions ensure that the light curtain is always in optimal working condition, effectively eliminating potential safety hazards.
Compatible with both optical synchronization and wired synchronization communication methods, featuring a compact size, elegant appearance, and outstanding performance to meet the needs of various application scenarios.
Supports multiple additional functions such as EDM and interlock reset to meet complex safety protection requirements.
The host computer configuration function allows users to flexibly configure the light curtain's functions and parameters according to on-site application needs, meeting personalized requirements. Multiple installation methods can adapt to various installation environments, making it convenient for users to install and maintain.

NOTICE:

The following certifications are currently under application:

　ISO 13849-1 (PL e) for machinery safety
　IEC 61496-1/-2 (Type 4) by TUV
Therefore, when this product is used as a safety device, it is recommended to use it after obtaining the required certifications in accordance with the applicable safety standards, laws, or regulations of the country of use.

Product Features

◆ No blind spots: Designed with blind spot-free technology for more comprehensive protection.
◆ Safety Level 4 Standard: Complies with IEC61508 SIL3 and UL 61496-1/-2 (Type 4) safety standard.
For details on each safety certification, refer to the documents below.
- IEC61508 SIL3
- UL Certificate
- CE Certificate
- TUV Certificate( application is under processing)
◆ High safety: Equipped with extensive self-check circuits, periodic dual self-checks and cross-checks to enhance safety.
◆ Multiple synchronization methods: Offers both optical and wired synchronization technologies for selection.
◆ Dual-channel redundant output: Designed with dual-circuit redundant output, each output channel features self-diagnostic pulses, enabling timely self-check and diagnosis of faults such as output channel overcurrent, short circuit with power supply, and mutual short circuit between outputs, ensuring safety and reliability.
◆ External EDM function: Enables dynamic monitoring of external devices (relays, contactors, etc.) connected to the light curtain output, preventing safety function failure caused by external device malfunctions.
◆ Interlock reset function: The light curtain offers an optional interlock reset function, supporting both manual and automatic reset modes.
◆ Host computer configuration function: The synchronization mode, EDM, and interlock reset functions can be flexibly configured via the host computer.
◆ Multiple installation methods: Suitable for various installation environments.

The factory default is set to optical synchronization mode (without EDM, automatic reset). Wired synchronization requires special software for modification; please refer to the manual for modification instructions.

8 Modes of Optical(Light) Synchronization/Wired Synchronization

NPN/PNP Output (No EDM, Auto Reset)

NPN/PNP Output (No EDM, Manual Reset)

NPN/PNP Output (With EDM, Auto Reset)

NPN/PNP Output (With EDM, Manual Reset)

Optical(Light) Synchronization Wiring Example
NPN Output (No EDM, Auto Reset)
Optical synchronization wiring example

Wired Synchronization Wiring Example
NPN Output Wiring Diagram (No EDM, Auto Reset)

Transmission Line Sequence Diagram

The colors and functions of the transmission lines connected to the light curtain are shown in the table below:

Cable	Pin	Wire Color	Function	Wiring Instructions
Transmitter Wire	1	Brown	24 V Power Positive	Connect to DC power 24 V positive
	3	Blue	0 V power negative	Connect to the 0 V negative terminal of the DC power supply
	2	Grey	Configure RS485+ / Synchronize RS485+	Refer to Wiring Diagram
	4	Pink	Configure RS485- / Synchronize RS485-	Refer to Wiring Diagram
	*PE	Yellow Green	PE Shielded Wire	Ground/GND
Receiving Wire	2	Brown	24 V Power Positive	Connect to DC power 24 V positive
	7	Blue	0 V power negative	Connect to the 0 V negative terminal of the DC power supply
	5	Grey	Configure RS485+ / Synchronize RS485+	Refer to Wiring Diagram
	6	Pink	Configure RS485- / Synchronize RS485-	Refer to Wiring Diagram
	*PE	Yellow Green	PE Shielded Wire	Ground/GND
	8	Black	OSSD1 switching output terminal	Connect to switching signal input port 1
	1	White	OSSD2 switching output terminal	Connect to switching signal input port 2
	4	Yellow	EDM Detection and RESET Input	Refer to Wiring Diagram
	3	Green	-	Open wire

*The PE pin refers to the soldering point where the shield of the transmission line is welded to the metal shell of the M12 waterproof aviation connector.

How to Use

User Manual Download Link://my.misumi-ec.com/linked/material/mech/MSM1/CAD/2D/10311204649/Usermanual.zip

Software Configuration
Debugging Tools

Software Tools	Configuration Software
Tools	USB to RS485 Converter (driver can be obtained by contacting sales or technical support)
Computer	System Requirements: Windows XP or later, resolution 1280*720 or higher

Software Installation (Standard Installation Green Version, Green Portable Version)

1. Select the portable software: E-LV4SLC Configuration
You can extract and use it directly after double-clicking the EXE file
Download link: //my.misumi-ec.com/linked/archive/im/E-LV4SLCInstallation-freesoftware.zip

2. Select the standard installation file: E-LV4SLC Configuration
Extract file and click the EXE file
Download link: //my.misumi-ec.com/linked/material/mech/MSM1/CAD/2D/10311204649/E-LV4SLCInstallation-freesoftware.zip

Select the language during installation

Show shortcut icon on desktop

Introduction to Software Usage
1. Communication Connection:
To prevent incorrect operation, this product can only communicate with the computer within 3 seconds after powering on.
Correctly connect the emitter or receiver of the light curtain to the power supply and the USB-to-RS485 converter (brown: 24 V DC, blue: 0 V DC, gray: RS485+, pink: RS485-).
Only one side of the light curtain can be connected for configuration at a time; do not connect both the emitter and receiver RS485 ports to the converter simultaneously. (Please refer to Chapter 4 Electrical Connections)
Communication Connection

The connection steps are as follows:
(1) First, correctly connect the power supply of either the receiver or transmitter (Brown: 24 V DC, Blue: 0 V DC), and at the same time, properly connect the RS485 communication wires of the receiver or transmitter (Gray: RS485+, Pink: RS485-)
(2) Make sure the USB to RS485 converter is properly connected to the computer, and confirm the driver’s COM port number (for example, COM12)

Step

Device Manager Example

2. Communication Connection Steps and Precautions:

1. (1) The light curtain is powered off ------] (2) Open the software and select the language ------] (3) Select the correct serial port number ------] (4) Click the [Open Serial Port] button ------] (5) Quickly power on the light curtain ------] The software will automatically switch to the working mode page
If the connection is not successful after 3 seconds, please check whether the serial port number is correct and whether the power supply and RS485 communication wires are properly connected, then repeat steps (1) ~ (5) .
Precautions

Main Parameter Configuration Interface

3. Parameter Configuration Interface: (For light/line synchronization switching, both the transmitter and receiver must be modified at the same time)
1. Transmitter Parameter Configuration Interface:
The transmitter can be configured as needed: (1) Select the parameter option you want to modify ------] (2) Click the [Modify ***] button ------] (3) A [√] will be displayed to indicate the modification was successful.

Transmitter Parameter Configuration Interface

2. Receiver Parameter Configuration Interface:
Configure the receiver as needed: (1) Select the parameter option to be modified ------] (2) Click the [Modify ***] button ------] (3) A [√] indicates the item was successfully modified.

Receiver Parameter Configuration Interface

4. Communication Disconnection
After completing the configuration of the transmitter or receiver, the user can first disconnect the grating's 24 V DC power supply, then disconnect the RS485 communication cable to break the communication connection between the grating and the computer. At this point, the software configuration of the grating is complete, and it can be installed and used normally.

Grating Installation
The safety distance and installation height are two key factors to ensure the protective function of the safety grating. The safety distance must be calculated accurately, and the installation position of the grating must meet the requirements for both safety distance and installation height; otherwise, there is still a risk of accidents.

Installation Direction
The transmission line interfaces of the transmitter and receiver must face the same direction. The receiver must not be installed 180° opposite to the transmitter. The transmitter and receiver must be on the same plane, with the light-transmitting surfaces kept parallel and facing each other.
Grating Installation

Installation Direction Diagram

Precautions

◆ When assembling, disassembling, or repairing the light curtain and cables, the power must be turned off first and the work should be performed by qualified personnel.
◆ Before each use, it is necessary to check whether the light curtain is properly controlling the equipment.
◆ Do not change the position of the light curtain arbitrarily during use.
◆ After replacing molds or fixtures, the safety distance and installation position of the light curtain must be adjusted by authorized personnel.
◆ During use, be careful not to let workpieces, tools, scrap, etc. collide with the light curtain or its plugs, cables, etc.

Selection Method

The distance to the hazard is determined by the minimum detectable object and response time of the selected area sensor. Common shaft spacing: 20 mm (⌀25 mm). However, when the distance to the hazard source is close, please select an optical axis pitch of 10 mm (⌀15 mm). When the distance to the hazard source is farther, you can also use the more cost-effective optical axis pitch of 40 mm (⌀45 mm).

When the distance to the hazard source is close
Detection object ⌀15 mm (finger detection)
Optical axis pitch 10 mm. Ultra-high safety type.
Selection Method

Common standard type
Detection body ⌀25 mm (manual detection)
Optical axis spacing 20 mm. Common types.
Selection Method

When the distance to the hazard source is relatively far
Detection body ⌀45 mm (arm, leg, body detection)
Optical axis pitch 40 mm. Please select this option when the installation location is far from the hazard source.
Selection Method

Specification Table

Part Number	-	Number of Optical Axes	-	Output Type
E-LV4SLC	-	4	-	N

The default factory specification for the product is Light(Optical) synchronous communication connection mode

Part Number		(3) Resolution (mm)	(4) Number of Optical Axes	(5) Output Type	Detection Height H (mm)	Component Dimension	Total Height L (mm)	Protection Height S (mm)
①Type	(2) Optical Axis Pitch D (mm)	(3) Resolution (mm)	(4) Number of Optical Axes	(5) Output Type	H = ((4) - 1) × (2)	Component Dimension	L = B1 + B2 + H	S = (4) × (2) + (3)
E-LV4SLC	10	15	16 to 100	N (NPN output) / P (PNP output)	150 to 990	B1: 8 mm, B2: 8 mm	166 to 1024	175 to 1015
	20	25	8 to 52		140 to 1020	B1: 8 mm, B2: 8 mm	156 to 1036	185 to 1065
	40	45	4 to 40		120 to 1560	B1:18 mm, B2:18 mm	156 to 1596	205 to 1645

Type	Shaft Spacing	Number of Optical Axes	Output Type	Detection Height (mm)	Total height (mm)	Protection Height (mm)
Type	D	Number of Optical Axes	Output Type	H	L	S
E-LV4SLC	10	16	NPN: N PNP: P	150	166	175
		20		190	206	215
		24		230	246	255
		28		270	286	295
		32		310	326	335
		36		350	366	375
		40		390	406	415
		44		430	446	455
		48		470	486	495
		52		510	526	535
		56		550	566	575
		60		590	606	615
		64		630	646	655
		68		670	686	695
		72		710	726	735
		76		750	766	775
		80		790	806	815
		84		830	846	855
		88		870	886	895
		92		910	926	935
		96		950	966	975
		100		990	1006	1015
	20	8		140	156	185
		10		180	196	225
		12		220	236	265
		14		260	276	305
		16		300	316	345
		18		340	356	385
		20		380	396	425
		22		420	436	465
		24		460	476	505
		26		500	516	545
		28		540	556	585
		30		580	596	625
		32		620	636	665
		34		660	676	705
		36		700	716	745
		38		740	756	785
		40		780	796	825
		42		820	836	865
		44		860	876	905
		46		900	916	945
		48		940	956	985
		50		980	996	1025
		52		1020	1036	1065
	40	4		120	156	205
		6		200	236	285
		8		280	316	365
		10		360	396	445
		12		440	476	525
		14		520	556	605
		16		600	636	685
		18		680	716	765
		20		760	796	845
		22		840	876	925
		24		920	956	1005
		26		1000	1036	1085
		28		1080	1116	1165
		30		1160	1196	1245
		32		1240	1276	1325
		34		1320	1356	1405
		36		1400	1436	1485
		38		1480	1516	1565
		40		1560	1596	1645

Dimensional Drawing

Product Dimensions

Grating Structure Dimensional Drawing

Detection Height H = (N-1) × Shaft Spacing, where N is the number of shafts
Protection Height S = N × Shaft Spacing + Resolution, where N is the number of shafts
Total Grating Height L = B1 + H + B2
*For the safe usage range design of blind-zone-free gratings, please refer to the protection height S.

Correspondence Table of Shaft Spacing and Structural Dimensions
Shaft Spacing D	B1	B2	Resolution
10 mm	8 mm	8 mm	15 mm
20 mm	8 mm	8 mm	25 mm
40 mm	18 mm	18 mm	45 mm

Technical data

Compliant with the following standards	IEC61508 SIL3
Power supply	24 V DC ±20%
Power	< 5 W
Shaft Spacing	10 mm	20 mm	40 mm
Resolution	15 mm	25 mm	45 mm
Number of Optical Axes	16, 20,: , 160	8, 10,: , 80	4, 6,: , 40
Protection Height	S = N × Optical Axis Spacing + Resolution, where N is the number of optical axes
Emission Light Source	940 nm Infrared Light Source
Response Time	≤ 2 × (N × 0.1+3) ms (N is the number of optical axes)
Safety Output (OSSD)	PNP transistor output, load current ≤ 200 mA, residual voltage ≤ 1 V (excluding voltage drop caused by cable extension), leakage current ≤ 0.1 mA; NPN transistor output, load current ≤ 200 mA, residual voltage ≤ 1 V (excluding voltage drop caused by cable extension), leakage current ≤ 0.1 mA.
Circuit Protection	Power Overvoltage Protection, Reverse Polarity Protection, Output Overcurrent Protection, Output Short Circuit Protection
Opposite Distance	0.1 – 5 m
Light Interference Resistance	10,000 Lux (incident angle I > 2.5°)
Grating Type	Through-beam
Synchronization Method	Optical Synchronization / Wire Synchronization (Optical synchronization is the default for delivery—no EDM, with automatic reset. Wire synchronization requires modification using dedicated software. For modification instructions, see [8. Software Configuration].)
Case Material	Aluminum
Product Accessories	Transmission cable: Emitter cable 4-core X1 X3.5 m, receiver cable: 8-core X1 X3.5 m, product body cable: 300 mm.
	Mounting bracket: Side mounting, one set with freely rotatable combination
Cross-sectional Size	30*28 mm
Protection Class	IP65
Vibration Resistance	Frequency 10 Hz–55 Hz, amplitude 0.35±0.05 mm, 20 times each in X, Y, and Z directions
Impact resistance	100 m/s² (approximately 10 G), 16 ms pulse, 1000 times in each of the X, Y, and Z directions
Operating environment temperature	-10°C to 55°C (no condensation)
Storage environment temperature	-30°C to 70°C (no condensation)
Operating ambient humidity	Relative humidity < 85% at 20°C
T_M (continuous operating time)	20 years (ISO 13849-1)

Cable Specification Sheet
Structure (configuration)	5.8 Gray 4-core Shielded Cable (Brown, Gray, Blue, Pink) 40/0.08BS+250D+1.05*4C+4 Cotton Threads+AL+B96/0.10TC OD: 5.8 Gray
Part Name (COMPONRNR)		A
Conductor (Conductor)	Construction (AWG/mm)	40/0.08BS+250D
	Material	Bare copper
	OD/Cabling OD (mm)	0.08±0.005
Insulation (Insulation)	Number of wires (NO of wire)	4
	Conductor material (Material)	PVC 35P, heat resistant up to 105°C
	Conductor diameter (OD) mm	1.1+0 -0.1
	Average thickness (Thickness)	0.2
	Color	1. Brown 2. Gray 3. Blue 4. Pink
Shielding (Shield)	Aluminum foil Mylar (Aluminum/polyester)	AL. FACE OUTSIDE
	Construction (N/mm)	Braiding: 96/0.10±3
	Material	Tinned copper wire (TS)
	Shielding rate (coverage)%	80%
Binder (Binders)	Binder diameter (OD) mm	/
	Material	/
	Color	/
Jacket (Jacket)	Jacket Diameter (OD) mm	5.8+0.1 mm
	Material	110P PVC semi-matte
	Color	Grey
	Average Thickness (MM)	0.5
Marking (Marking)	AVVR　　300/300 V　　4*0.2 mm² JB/T8734.4-2016　　025　　CE
Attached Product Diagram (Diagram)

Cable Specification Sheet
Structure (configuration)	5.8 mm Black 8-core Shielded Cable (White, Yellow, Green, Blue, Gray, Brown, Pink, Black) 40/0.08BS+250D+1.05*4C+4 Cotton Threads+AL+B96/0.10TC OD: 5.8 mm Black
Part Name (COMPONRNR)		A
Conductor (Conductor)	Construction (AWG/mm)	40/0.08BS+250D
	Material	Bare copper
	OD/Cabling OD (mm)	0.08±0.005
Insulation (Insulation)	Number of wires (NO of wire)	4
	Conductor material (Material)	PVC 35P, heat resistant up to 105°C
	Conductor diameter (OD) mm	1.05+0 -0.1
	Average thickness (Thickness)	0.2
	Color	1. White 2. Yellow 3. Green 4. Blue 5. Gray 6. Brown 7. Pink 8. Black
Shielding (Shield)	Aluminum foil Mylar (Aluminum/polyester)	AL. FACE OUTSIDE
	Construction (N/mm)	Braiding: 96/0.10±3
	Material	Tinned copper wire (TS)
	Shielding rate (coverage)%	80%
Binder (Binders)	Binder diameter (OD) mm	/
	Material	/
	Color	/
Jacket (Jacket)	Jacket Diameter (OD) mm	5.8+0.1 mm
	Material	110P PVC
	Color	Black
	Average Thickness (MM)	0.5
Marking (Marking)	AVVR　　300/300 V　　8*0.2 mm² JB/T8734.4-2016　　025　　CE
Attached Product Diagram (Diagram)