Schmersal AZM201 Solenoid Interlock

Schmersal AZM201 Solenoid Interlock with its handy door handle actuator which has already been used in many swinging safety doors is now available with built-in RFID technology. The advantage: RFID allows a coding level of “high”. This means the interlock now offers increased tamper protection in accordance with the requirements of DIN ISO 14119. At the same time, the AZM201 solenoid interlock can forward extensive diagnostic information to a higher-level controller to enable preventative maintenance in line with Industry 4.0.

In the new version of the AZM201, the RFID technology makes it possible, among other things, for the user to choose between three types of coding and thereby determine the appropriate level of anti-tamper safety: In the basic version, the AZM201 accepts any suitable actuator. A second version only accepts the actuator associated with the teach-in process during initial activation. With a third version, this teaching-in process can be repeated as many times as required. A release block of ten minutes prevents an actuator from being replaced in the short term and enhances anti-tampering safety as a result. In this way, the user can choose a coding version that best suits his needs and also determine the level of anti-tampering protection.

Finally, the AZM201 has an optional serial diagnostic cable. This means the solenoid interlock can be connected with up to 31 safety sensors and interlocks in series. The resulting “collective line” of diagnostic information is fed into a serial diagnostic gateway for evaluation. Each of the safety sensors and solenoid interlocks connected loads status signals, warning and error messages to the connected PLC, from which control commands, e.g. to unlock a solenoid interlock, can be issued to the devices connected in series. The advantage of the system lies not only in the significant reduction in cabling required, but also in the transmission of useful data to the higher-level PLC. This significantly reduces machine downtimes.


  • Thermoplastic enclosure
  • RFID-technology for needs-based protection against tampering/span>
  • Max. length of the sensor chain 200 m
  • Self-monitoring series-wiring of 31 sensors
  • 3 LEDs to show operating conditions
  • Sensor technology permits an offset between actuator and interlock of ± 5 mm vertically and ± 3 mm horizontally
  • Suitable for hinged and sliding guards
  • Intelligent diagnosis
  • Manual release

Schmersal AZM201 Solenoid Interlock Datasheet

Schmersal Technical Datasheets