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Magnetically Coded Safety Switches CMS

Magnetically Coded Safety Switches CMS
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Magnetically Coded Safety Switches CMS

Product catalog summary
Introduction
EUCHNER GmbH + Co. KG specializes in industrial safety technology, offering high-quality switching systems for mechanical and systems engineering. Their magnetically coded safety switches are designed to protect people and machines by monitoring safety doors and minimizing risks.
Magnetically Coded Safety Switches
These switches are used in environments with strict hygiene requirements, where precise door guides are not possible, or where compact dimensions are needed. The system includes an actuator, a read head, and an evaluation unit. The actuator contains coded magnets, and the read head switches contacts under the magnetic field's influence. The evaluation unit processes these signals to control the safety circuit.
Advantages
  • Non-contact monitoring reduces mechanical wear.
  • Identical coding allows for quick replacement.
  • High protection level (IP67) and suitability for extreme conditions.
  • Large actuating range and flexible installation.
  • Cost-effective with maximum benefits.
  • LED displays for simplified diagnostics.
  • Approved by TÜV and UL.
System Components
The system includes evaluation units, read heads, and safety relays. Evaluation units switch the safety circuit based on read head contact positions and can connect up to 30 read heads. Read heads are available in various designs and can be equipped with reed contacts or Hall sensors. Safety relays perform safe evaluations and can be extended with modules for different safety evaluations.
Evaluation Units
Different models of evaluation units (CMS-E-AR, CMS-E-BR, CMS-E-ER, CMS-E-FR) offer varying capabilities, such as the number of connectable read heads and safety contacts. They are designed to meet different safety categories and performance levels according to EN ISO 13849-1.
Technical Specifications
The CMS-E-AR evaluation unit supports up to 30 read heads, with specifications including a polyamide housing, operating voltage of 24V AC/DC, and a degree of protection IP20 for terminals and IP40 for housing. It is suitable for mounting on a 35 mm rail according to DIN EN 60715 TH35.
Conclusion
EUCHNER's magnetically coded safety switches offer a reliable and flexible solution for industrial safety applications, ensuring protection for both personnel and machinery while meeting high safety standards.
Overview: This document provides technical specifications and connection examples for evaluation units CMS-E-BR and CMS-E-ER, which are used in safety systems with read heads. It includes details on wiring configurations, performance levels, and technical parameters.
Specifications:
  • Evaluation Unit CMS-E-BR: Supports up to 4 read heads, with a safety contact and an auxiliary contact. It achieves Category 3/PL d with multiple read heads and Category 4/PL e with a single read head. The unit is suitable for a 35 mm mounting rail and operates at 24 V AC/DC.
  • Evaluation Unit CMS-E-ER: Can connect up to 30 read heads with reed contacts or 10 with Hall sensors. It features 2 safety contacts, an auxiliary contact, and a feedback loop. It supports automatic and monitored start functions.
Connection Examples:
  • CMS-E-BR: Examples include configurations for 1 to 4 read heads, with and without feedback loops.
  • CMS-E-ER: Examples cover configurations for 1 to 30 read heads with reed contacts and 1 to 10 with Hall sensors, including feedback loop options.
Technical Data:
  • CMS-E-BR: Made of Polyamide PA6.6, dimensions 114.7 x 75 x 45 mm, weight 0.24 kg, operating temperature 0 to +50°C, storage temperature -25 to +70°C, degree of protection IP20/IP40.
  • CMS-E-ER: Dimensions 114 x 99 x 22.5 mm, weight 0.22 kg, operating temperature 0 to +55°C, storage temperature -25 to +70°C, degree of protection IP20/IP40.
Performance Levels: The document specifies performance levels according to EN ISO 13849-1, with PL e for single read head configurations and PL d for multiple read heads.
Notes: All illustrations assume the evaluation unit is electrically isolated and the actuator is not in the actuating range. The document is subject to technical modifications, and no responsibility is accepted for the accuracy of the information.
Overview: The document provides technical specifications and connection examples for the CMS-E-FR evaluation unit, which is compatible with read heads using reed contacts and Hall sensors. It outlines the functional description, safety categories, technical data, and connection examples for various configurations.
Functional Description: The CMS-E-FR evaluation unit can connect up to six read heads. It supports simultaneous connections of read heads with reed contacts and Hall sensors. The safety category and performance level (PL) vary based on the number of connected read heads, achieving up to category 4 / PL e with one read head and category 3 / PL d with more than one.
Technical Specifications: The evaluation unit is designed for 35 mm mounting rails and operates at 24 V AC/DC with a current consumption of 10-120 mA. It features two NO safety contacts and one NC auxiliary contact. The unit is housed in polyamide PA6.6, with dimensions of 114 x 99 x 45 mm, and operates within an ambient temperature range of 0 to +55°C.
Connection Examples: The document provides detailed connection examples for both reed contacts and Hall sensors, illustrating configurations for one, three, and six read heads. It includes diagrams for automatic and manual start options, with and without feedback loops.
Read Heads with Reed Contacts: The document describes various designs of read heads, highlighting their large actuating range, high degree of protection (IP67), and suitability for hygienic environments. Technical data for read heads and actuators are provided, including operating distances and mechanical life.
Read Heads with Hall Sensors: Similar to reed contacts, connection examples for Hall sensors are provided, detailing configurations for one, three, and six read heads.
Ordering Information: The document includes ordering tables for evaluation units, read heads, actuators, and accessories, specifying order numbers and item details.
Overview: This document provides technical specifications and ordering information for read heads and actuators with reed contacts, specifically focusing on designs A, B, C, and E. These components are used in conjunction with evaluation units and are available in various shapes and configurations.
Specifications:
  • Design A: Cube-shaped, 88 x 25 mm, with connecting cable or M8 plug connector. The active face is 0.34 mm². The housing material is fiberglass reinforced PPS, with an ambient temperature range of -20 to +60 °C and a degree of protection IP67.
  • Design B: Cube-shaped, 36 x 26 mm, similar specifications to Design A, with additional options for cable types and lengths.
  • Design C: Cylindrical version M25, with similar material and protection specifications. Includes a dimension drawing for installation guidance.
  • Design E: Cylindrical version M30, with similar specifications as other designs, focusing on larger dimensions.
Procedures and Installation:
  • Installation orientation is flexible, but alignment with the actuator is crucial, as indicated by markings.
  • Connection options include molded cables with cable end sleeves or M8 plug connectors.
Performance Parameters:
  • Switching voltage is 24 V, with a maximum switching current of 0.5 A.
  • Mechanical life is rated at 100 million operating cycles.
  • Vibration resistance is between 10 to 55 Hz with an amplitude of 1 mm, and shock resistance is 30 g for 11 ms.
  • EMC compliance is according to EN 60947-5-3.
Ordering Information:
  • Each design includes an ordering table with specific order numbers for read heads and actuators, along with cable types and lengths.
  • Accessories such as connecting cables with various lengths are available for order.
Diagrams and Drawings:
  • Dimension drawings and operating diagrams are provided for each design to assist with installation and operation.
Notices:
  • Technical modifications are subject to change, and no responsibility is accepted for the accuracy of the information provided.
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Catalog excerpts

Magnetically Coded Safety Switches CMS-1

086824-10-11/20 Subject to technical modifications without notice, no liability will be assumed for any detail. © EUCHNER GmbH + Co. KG · TA Magnetically Coded Safety Switches CMS

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Magnetically Coded Safety Switches CMS-2

Internationally successful – the EUCHNER company EUCHNER GmbH + Co. KG is a world-leading company in the area of industrial safety technology. EUCHNER has been developing and producing high-quality switching systems for mechanical and systems engineering for more than 60 years. The medium-sized family-operated company based in Leinfelden, Germany, employs Headquarters in Leinfelden-Echterdingen around 800 people around the world. 18 subsidiaries and other sales partners in Germany and abroad work for our international success on the market. Quality and innovation – the EUCHNER products A look...

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Magnetically Coded Safety Switches CMS-3

Non-Contact Safety Systems CMS General Magnetically coded safety switches CMS The advantages of magnetically coded safety switches System components at a glance System Overview Evaluation unit CMS-E-AR Evaluation unit CMS-E-BR Evaluation unit CMS-E-ER Evaluation unit CMS-E-FR Read Heads with Reed Contacts CMS-R Read heads and actuators, design A Read heads and actuators, design B Read heads and actuators, design C Read heads and actuators, design E Read Heads with Hall Sensors CMS-RH Read heads and actuators, design A, with Hall sensors Read heads and actuators, design B, with Hall sensors Safety...

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Magnetically Coded Safety Switches CMS-4

General Magnetically coded safety switches CMS The advantages of magnetically coded safety switches Magnetically coded safety switches are interlocking devices that are designed to protect people and machines. Compared with electromechanical safety switches, they are used if: f Non-contact safety door monitoring: no mechanical wear on the sensor hygiene requirements must be met (e.g. in the food industry) f a precise door guide is not possible f compact dimensions are required. The EUCHNER safety system CMS is based on the magnetic principle. The tamper-proof, coded system was specifically developed...

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Magnetically Coded Safety Switches CMS-5

General System components at a glance Evaluation units Using internal relays, CMS evaluation units switch the safety circuit depending on the position of the contacts in the read head. Selection of the evaluation unit depends on the number of read heads to be connected and on the Performance Level to be achieved according to EN ISO 13849-1 by the overall system. Depending on version, up to 30 read heads can be connected. CMS evaluation units feature 1 to 2 safety contacts, an auxiliary contact and a connection for a feedback loop. Depending on version, the evaluation unit features additional...

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Magnetically Coded Safety Switches CMS-6

General System components at a glance Safety Relays ESM Safety relays series ESM perform safe evaluation of connected components such as mechanical safety switches, emergency stop devices and electro-sensitive protective equipment, and safely shut down the hazardous machine functions. Various safety relays to which extension modules can be added on the output side are available for the safety system CMS. The advantage of the ESM modular principle is that different safety evaluations can be implemented with only a few module variants. The safety relays can be operated with various types of starting....

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Magnetically Coded Safety Switches CMS-7

System Overview Evaluation unit Read heads Function CMS-E-AR f 1 safety contact f 1 to 2 read heads (NO contacts wired in parallel) can be connected f Category 3 according to EN ISO 13849‑1 f PL d according to EN ISO 13849‑1 to 30 read heads (NO contacts wired in series) can be connected f Category 1 according to EN ISO 13849‑1 f PL c according to EN ISO 13849‑1 CMS-E-BR f 1 safety contact f 1 auxiliary contact f 1 feedback loop can be connected f 1 read head can be connected f Category 4 according to EN ISO 13849‑1 f PL e according to EN ISO 13849‑1 to 4 read heads can be connected 3 according...

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Magnetically Coded Safety Switches CMS-8

» valuation and safety relay E in one device – cost-effective solution for up to 30 safety doors.« X X Can be used up to PL e/category 4 according to EN ISO 13849-1 Up to 30 read heads can be connected Combination of read heads with reed contacts and Hall sensors possible Subject to technical modifications; no responsibility is accepted for the accuracy of this informat

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Magnetically Coded Safety Switches CMS-9

Subject to technical modifications; no responsibility is accepted for the accuracy of this information.

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Magnetically Coded Safety Switches CMS-10

Evaluation Units CMS Evaluation unit CMS-E-AR Cat. Cat. 1 3 PLc PLd Evaluation unit CMS-E-AR Dimension drawing f Up to 30 read heads can be connected f 1 safety contact Functional description The evaluation unit CMS-E-AR is suitable for the direct connection of up to 30 read heads. Suitable for 35 mm mounting rail according to DIN EN 60715 TH35 Category / PL according to EN ISO 13849‑1 f Category 1 / PL c with 3 … 30 connected read heads (NO contacts wired in series) f Category 3 / PL d with 1 … 2 connected read heads (NO contacts wired in parallel) Block diagram UB Operating voltage green Channel...

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Magnetically Coded Safety Switches CMS-11

Evaluation Units CMS Technical data for evaluation unit CMS-E-AR Value Housing material Ambient temperature Storage temperature Number of read heads Plug-in connection terminals Internal fuse (operating voltage) (automatically resetting fuse PTC) Current consumption External contact fuse (safety circuit) Safety contacts Switching load acc. to UL Class 2 Input: 24 V AC / DC Output: 30 V AC / 24 V DC Rated insulation voltage Ui Vibration resistance Mechanical operating cycles, relay Reliability values acc. to EN ISO 13849-1 depending on the switching current at 24 V DC Number of switching cycles/year...

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Magnetically Coded Safety Switches CMS-12

Evaluation Units CMS Selection table for read heads for non-contact safety system CMS-E-AR Read head design Read head contact assembly Number of read heads Read head CMS-R-AXD…

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Magnetically Coded Safety Switches CMS-13

Evaluation Units CMS Connection examples for safety system CMS-E-AR Connection example 1 f One read head on one evaluation unit CMS-E-AR f Read head 1: reed contacts wired in parallel Lesekopf 1/ Read Head 1 max. 1 Lesekopf / max. 1 Read Head Connection example 2 f Two read heads on one evaluation unit CMS-E-AR f Read heads 1 and 2: reed contacts wired in parallel Lesekopf 1/ Read Head 1 Lesekopf 2/ Read Head 2 max. 2 Lesekopf / max. 2 Read Head Connection example 3 f More than two read heads (max. 30) on one evaluation unit CMS-E-AR f Read head 1: read contacts wired in parallel; read heads...

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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.