Solenoid Interlock in Hygienic Design

With high protection class IP69 for the food and beverage industry

  • Solenoid Interlock in Hygienic Design
    Solenoid Interlock in Hygienic Design

Schmersal has developed a completely new actuator design for the AZM 300 solenoid interlock. The characteristic feature is the patented operating principle with rotating shaft and star handle. The advantage: The safety door, when in a closed position can be pulled-to and held with practically no free-play. Thanks to the innovative guard locking system, the solenoid interlock can be approached from three sides. This ensures universal applicability.
Users do not need any additional add-on parts for this solenoid interlock, such as a door stop or latching element, as these functions have been integrated. The AZM 300 has an integrated RFID sensor, used for secure identification of the actuator, which enables three different levels of coding and thus protection against tampering. Other advantages of this actuator design include its hygienic design. The AZM 300 is also resistant to a wide range of cleaning agents and has IP 69 protection class. This is why the AZM 300 is preferred in hygiene-sensitive areas - e.g., in food production or in the packaging and pharmaceutical industries.

Serial Diagnostic Function

The AZM300 solenoid interlock is optionally available with serial diagnostics (SD). Solenoid interlocks with serial diagnostic feature have a serial input and output cable instead of the conventional diagnostic output. When solenoid interlocks are connected in series, the serial diagnostic cables are also connected in series in addition to the safety channels. The resulting "common diagnostic line" is wired to a serial diagnostic gateway for evaluation. In this way, the SD system developed by Schmersal creates the prerequisite for solenoid interlocks to be able to forward extensive diagnostic information to a higher-level control system. In the sense of Industry 4.0, this makes preventive maintenance possible. Such a series connection is possible for up to 31 safety switches. This makes the monitoring of several safety gates in a plant much easier and more cost-effective. This solution is therefore particularly interesting for packaging machines and complex packaging lines.