1. Non-contact and guard-locking options minimize defeat possibilities.
Omron’s RFID-monitored door switches provide non-contact and guard-locking options to prevent bypassing and ensure the highest level of operator protection. According to ISO 14119, the D41 Series is considered a Type 4 interlocking device because its position switch is actuated by a coded RFID tag actuator that opens its contacts when the guard is not closed.
Coding creates unique combinations that make the system more difficult to bypass. For actuator coding purposes, EN ISO 14119 also introduces a coding level classification that’s applicable independently of the technology used. A high-coded safety switch is one where a sensor is paired with a high-level coded actuator offering more than 1,000 variations.
Safety and maintenance teams working on retrofit machinery, preparing to implement a risk reduction strategy, or seeking to follow industry best practices can use Type 4 high-coded door switches to prevent safety device manipulation and keep people safe.
2. A single product family with multiple options lowers the cost of ownership.
Using a single product family prevents unnecessary losses by simplifying the design and installation stages while reducing MRO investments. The D41 Series includes different types of door switches so that both end users and machine builders can find the ideal option for their design and maintenance activities while keeping stock levels and costs to a minimum.
Machine builders who design compact machines face physical restrictions like limited space or limited tolerance when installing safety door switches. Sometimes, builders try to mount safety devices in hidden positions or out of reach to minimize bypassing. Omron’s door switches support a variety of guarding strategies for different machines.
The D41D, for example, offers three different type of actuators – including flat and miniature options – to fit any machine design. Other options like the D41L and D41G sensors with guard lock capabilities offer a symmetric structure that fits aluminum profile and can be combined with different actuators for left and right hinged doors.
For end users who have found safety door switches to be a cause of downtime due to misalignment or poor installation practices (such as using a door switch as a mechanical stop) can take advantage of the D41L’s a unique design with increase alignment tolerance. The D41L can be used as an end stop with no additional parts required and helps customers save money.
3. They’re easy to install and troubleshoot.
The D41 Series offers automatic pairing and dramatically reduces the amount of effort required to commission and maintain a machine. All models feature three-color LED diagnostic outputs that minimize non-value-added activities like resolving door switches misalignment during commissioning or troubleshooting thanks to easy and accessible visualization for diagnostic.
All models offer automatic and quick pairing for one or more switches if connected in series. This speeds up installation and simplifies maintenance when an actuator needs to be replaced. For example, OEMs building machinery with multiple movable guards that need to have door switches connected in series can complete pairing all at once without taking extra time.
4. They’re the ideal option for harsh environments.
The D41L’s unique design prevents the accumulation of water, dust and food in the device and supports ECOLAB-certified detergent resistance for quick cleaning. This makes it ideal for control engineers looking to meet high hygiene standards and regulations for food processing and packaging machines.
For dusty environments in which frequent additional maintenance efforts are required to maintain door switches, the D41L offers a new approach that combines RFID with a unique mechanism and no keyholes to prevent foreign matter from collecting on its body.
5. They keep workers safe around robotic applications.
Featuring an ergonomic actuator and supporting compliance with ANSI/RIA 15.06, the D41G is the ideal complement to any robotic application for keeping personnel away from hazardous areas. It also offers accessories that are familiar to operators on the factory floor.
Overall, the D41 product family makes it possible for workers to quickly exit dangerous zones by simply pushing out the door while turning the handle. In case of power loss, maintenance teams will be able to mechanically unlock the solenoid.