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Safety Product Series Catalog

Safety Product Series Catalog
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Safety Product Series Catalog

Product catalog summary
Overview: This document is a catalog by LINE SEIKI CO., LTD. for non-contact safety interlock door switches and safety relay units. It provides detailed information on various models, specifications, and applications of these safety products.
Features of Non-contact Safety Interlock Door Switches: These switches are designed to prevent mechanical wear and failure, suitable for harsh environments with IP68 and IP69K ratings. They offer high reliability, excellent dust and waterproof performance, and durability. The switches use multiple magnets for coding to prevent safety function invalidation and do not require a relay unit for certain series, reducing costs.
Specifications and Models: The catalog includes models from different series (SS2, SS3, SS4), each with specific features such as enclosure material, safety output, power supply voltage, operating distances, and protection class. The SS2 series is versatile for both stand-alone and combined use with a relay, the SS3 series is for stand-alone use, and the SS4 series is for exclusive use with a relay.
Safety Relay Unit (SM1-301): This compact unit is applicable to Category 4 conditions per ISO 13849-1. It can connect up to 25 units in series and monitors emergency stop devices and limit switches, featuring three safety outputs with force-guided contacts.
Risk Assessment and Corporate Responsibility: The document highlights the importance of risk assessment in machinery safety design, as standardized by ISO 12100/ISO 14121. It outlines corporate responsibility in ensuring worker safety and potential liabilities for neglecting safety measures.
Conclusion: LINE SEIKI's safety products are designed to enhance machine safety by reducing risks associated with various hazards. The catalog provides detailed specifications and applications for selecting the appropriate safety switches and relay units.
Overview of Non-contact Safety Interlock Door Switches: These switches ensure machine safety by stopping the machine when the door is open. The switch is off when the door is open, preventing machine operation, and on when the door is closed, allowing operation. If the door opens during operation, the machine stops.
Functionality and Safety Features: The SS2 Series uses magnetic sensors to detect specific magnet polarities, ensuring safety through electrical means. It includes a failure detecting circuit that monitors for anomalies, preventing dangerous situations where the machine could operate with the door open.
Comparison with General Switches: General switches may not ensure safety in unexpected breakdowns and can be invalidated. The SS2 Series offers higher security with encoded magnets and built-in protective fuses.
Certifications and Standards: The switches comply with ISO 13849-1:2015 and the RoHS Directive. ISO 13849-1:2015 incorporates IEC 62061 concepts, allowing for stochastic evaluation of safety control systems. Key factors include Performance Level (PL), Mean Time to Dangerous Failure (MTTFd), Diagnostic Coverage (DCavg), and Common Cause Failure (CCF).
Performance Level (PL) Evaluation: PL is determined by factors such as category, MTTFd, DCavg, and CCF. The severity of injury, frequency of exposure, and possibility of avoiding hazards are considered. MTTFd ranges from low (3-10 years) to high (30-100 years), and DCavg ranges from none (<60%) to high (>99%).
Safety Integrity Level (SIL): SIL quantifies safety performance per IEC 61508, based on the average frequency of dangerous failures per hour (PFH avg). The maximum SIL is limited by hardware fault tolerance (HFT) and safe failure fraction (SFF).
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Catalog excerpts

Safety Product Series Catalog-1

Safety Product Series Catalog Non-contact Safety Interlock Door Switc

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Safety Product Series Catalog-2

Safety Products (Non-contact Safety Interlock Door Switches) Features of Non-contact Safety Interlock Door Switches High Reliability High Durability The internal architecture is designed to ensure safety even in the unlikely event of an emergency. Safety door switches of non-contact type are free from mechanical wear or failure which happens to the ones of mechanical type. Laser Printed Housing Prevent Invalidation Surface of stainless steel housing is laser printed. No contamination by foreign materials from safety switch itself. Coding is achieved using combination of multiple magnets, which...

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Safety Product Series Catalog-3

| SS2 Series PLd per ISO 13849-1 in stand-alone applications Cross monitoring between two channels Multiple units can be connected to one safety relay unit Robust stainless steel housing available S Safety Output Auxiliary Output Enclosure Material * Use power supply compliant with Safety Extra Low Voltage (SELV) or Protected Extra Low Voltage (PELV).

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Safety Product Series Catalog-4

■ PRODUCT SPECIFICATIONS Models SS2-P-110 Safety Output Auxiliary Output (x1) N.C. x 1 (SSR Output) N.C. x 1 (PNP Open Collector Output) (NPN Open (SSR Collector Output) N.C. x 1 (PNP Open Collector Output) N.C. x 1 (NPN Open Collector Output) Safety Relay Unit Can be used in combination with SM1-301 of Line Seiki IP68 IP69K PLd (Safety Cat.3), SIL 2: Stand-alone or with Safety Relay unit “SM1-301” *2 to 25 safety switches can be connected in series PLd (Safety Ca.3), SIL3: Combined with Safety Relay unit “SM1-301” (NPN Open (SSR Collector Output) N.C. x 1 (PNP Open Collector Output) N.C. x 1...

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Safety Product Series Catalog-5

Small Safety Switch (Stainless Steel Type available) • Small type, slim designed, easy to install • Robust stainless steel housing available * Use power supply compliant with Safety Extra Low Voltage (SELV) or Protected Extra Low Voltage (PELV).

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Safety Product Series Catalog-6

Exclusive use in combination with relay Small Safety Switch (Stainless Steel Type available) • Small type, slim designed, easy to install • Up to PLe per ISO 13849-1 in combination with a safety relay unit • Multiple units can be connected to one safety relay unit • Robust stainless steel housing available Rated Operating Distance : 7mm Assured Switch ON Distance : 6mm Assured Switch OFF Distance : 10mm Hysteresis : 1mm Repeat Accuracy : <5% (PNP Open (NPN Open (PNP Open (NPN Open Collector Output) Collector Output) Collector Output) Collector Output) Transmitter Unit : 70 x 12 x 16 mm Receiver...

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Safety Product Series Catalog-7

| SM1-301 Safety Relay Unit • 23 mm width, compact space-saving type • Applicable to the conditions of Category 4 per ISO 13849-1 • 25 units of SS4-Series models can be connected in series, still applicable to the conditions of Category 4 per ISO 13849-1 • Monitor contacts of emergency stop devices and/or limit switches • 3 safety outputs (N.O.) with force guided contacts * Use power supply compliant with Safety Extra Low Voltage (SELV) or Protected Extra Low Voltage (PELV).

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Safety Product Series Catalog-8

Safety Products (Dimension) Dimensions inside parentheses are for SS2-OX models. Receiver Unit Transmitter Unit [ Mounting Hole Dimensions ] [ Mounting Hole Dimensions ] Dimensions inside parentheses are for SS3 / SS4-OX models. Receiver Unit Transmitter Unit [ Mounting Hole Dimensions ] [ Mounting Hole Dimensions ] SAFETY RELAY [Front View] [Side View] [Back View]

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Safety Product Series Catalog-9

International Standard Attitude toward Ensuring Safety Safety Confirmation System: The machine can be activated only after the safety is ensured. Safety Integrated Design: Safety design is integrated into the machine so that any human errors or machine failure will not cause any accident. System Establishment: A system is established which can operate only when human security is ensured. What is Risk Assessment for safety design of machinery? Risk assessment is a procedure in which the degree of risk is evaluated to exclude risk of a machine and ensure safety when you design or redesign the machine....

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Safety Product Series Catalog-10

About Non-contact Safety Interlock Door Switches Safety Comparison between General Switches and Our Non-contact Safety Interlock Door Switches General Switches (Ex. Mounting on a door) When machine door is open: Switch is OFF → Machine is stopped. (Machine cannot be operated.) When machine door is closed: Switch is ON → Machine is running or can be operated. In addition, machine is stopped if machine door is opened during its operation. ① Safety cannot be ensured in case of unexpected breakdown Contact welding! Overcurrent can cause loss of functions Put magnet on detecting unit Very dangerous...

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Safety Product Series Catalog-11

About Non-contact Safety Interlock Door Switches Certifications Comply with RoHS Directive About ISO 13849-1:2015 Conventionally, safety was designed and evaluated based on deterministic point of view, represented by such electrical parts (non-semiconductors) as switches and relays. However, as machinery/devices are getting more complex and software control is prevailing, such a conventional safety assessment method does not match real environment. Thus, safety design and evaluation have been revised as ISO 13849-1:2015 incorporating the concept of IEC 62061. As a result, in addition to the conventional...

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Safety Product Series Catalog-12

Determination of required Performance Level (PLr) Determination of Performance Level (PL) DCavg DCavg DCavg DCavg DCavg DCavg DCavg None None Low Medium Low Medium High 2 - Serious (irreversible injuries or death) F: Frequency and/or exposure to hazard Mean time to dangerous failure (MTTFd) Low: 3 years ^ MTTFd < 10 years Medium: 10 years ^ MTTFd < 30 years High: 30 years ^ MTTFd < 100 years 1 - Seldom-to-less-often and/or exposure time is short Average of Diagnostic Coverage 2 - Frequent-to-continuous and/or exposure time is long (DCavg) P: Possibility of avoiding hazard or limiting harm Low:...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.
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