Content

12/01/2020

Product Showcase: High Level Coding to ISO 14119

Tampering with safety switches has always been a major concern in machine safeguarding. One measure to avoid the safety switch from being bypassed is to conceal it within the framework of the machine. If the safety device cannot be concealed, an individually coded switch which accepts only one unique actuator should be used and mounted with tamperproof fasteners. High level coded switches in accordance with ISO14119 offer 1,000s of coding options, making it tougher to bypass because the switches are uniquely matched with actuators and the likelihood of obtaining a second actuator which would work with the safety device is greatly reduced.
 
Schmersal offers a range of High Level Coded products, including electromechanical options and electronic safety devices with RFID sensing. Find out more about this topic in our References section.

 

Electronic switches with High level coding

The use of RFID allows for high level coding of non-contact switches because each actuator is assigned a unique number which is read by the sensor. Schmersal’s RFID based electronic safety devices have I1 and I2 variants allowing only one actuator to be taught in and recognized by the safety sensor. Additionally, these sensors are designed to meet safety function up to Category 4 , PL e according to ISO 13849-1

RSS16

■ Safety sensor
■ Mounting compatable to AZ16
■ Optional 60 N magnetic latch

Online Product Catalog
Tech Brief
Animation video (YouTube)


RSS260

■ Safety sensor
■ Compact housing
■ Symmetrical housing for mounting flexibility

Online Product Catalog
Tech Brief
Innovations


RSS36

■ Safety sensor
■ ECOLAB approved and IP69K rated 
■ Option for 18 N latching

Online Product Catalog
Tech Brief
Animation Video (YouTube)


AZM300

■ Solenoid locking (1,000 N locking force)
■ ECOLAB approved and IP69K rated
■ Adjustable latching force (25 N / 50 N)

Online Product Catalog
Tech Brief
Innovations


AZM400

■ Motorized locking bolt
■ Bi-stable - interlock remains in last position on loss of power.
■ 10,000 N locking force

Online Product Catalog
Tech Brief
Demo video (YouTube)
Animation video (YouTube)
Innovations


[NEW] AZ201 & AZM201

■ Update of AZ/AZM200 series, with RFID
■ Keyed interlock (AZ) or Solenoid lock (AZM)
■ Door handle actuator
■ Optional emergency release handle

Online Product Catalog AZ201
Online Product Catalog AZM201
Tech Brief AZM201

 

Electromechanical switches with High level coding

These are special versions of our traditional electromechanical safety switches. Individually coded mechanical switches contain at least five separated cams which are set to one of five positions, allowing for over 3,000 combinations. The switch will only actuate with the unique matching actuator key included.


AZ16 Zi

■ Keyed interlock
■ Large wiring compartment
■ Up to 3 contacts
■ Screw terminals

Online Product Catalog AZ16 Zi


AZ17 Zi

■ Keyed interlock
■ Compact design
■ 2 contacts
■ IDC or M12 connector

Online Product Catalog AZ17 Zi


AZM161 I

■ Solenoid locking with protection against incorrect locking
■ Power-to-lock and Power-to-unlock versions
■ Emergency release/exit options
■ 2,000 N locking force
■ Up to 6 contacts

Online Product Catalog AZM161 i


AZM170 I

■ Solenoid locking with protection against incorrect locking
■ Power-to-lock and Power-to-unlock versions
■ Compact design
■ 1,000 N locking force
■ 2 contacts

Online Product Catalog AZM170 i

 

References

Design Of Safety Guards Under Observation Of ISO 14119

This guide walks through the process of designing safety guards, from risk assessment, safety circuit design, choosing the right safety devices under observation of ISO 14119, to validation and documentation.
24 pages, poster

Download the ISO14119 Guide

 

Design and Selection of Interlocking Devices

This article is a summary of the focal points specified by the ISO 14119 standard which regulates the design and use of interlocking devices. Excerpt from Machine Safety In Europe book.

Download the technical article

 

High Level Coding to ISO 14119

Our one page overview of High Level Coding and the related products we offer. It includes background information and further resources to find out more. Available as PDF only.

Download the Tech Brief

 

Webinar: ISO 14119 - The New Machine Safety Standard for Guard Door Interlocks

This webinar discusses the key elements within the new ISO 14119 safety standard for interlocking devices. It covers the principles of product design and selection, as well as their use according to ISO 14119. Originally presented on March 3, 2015. Duration: 1 hour

View the webinar (YouTube)

 

Context Column