Schmersal Ibérica, S.L. - Door security devices

Schmersal Offers an enclavamiento by solenoid with mechanism of positive mechanical blockade and a principle of operation totally without contact. Although at first sight they can seem contradictory terms are not it when it employs the strength of the electromagnetism.

The enclavamiento of hygiene MZM 100 employs an electromagnet to generate a strength of retention of 500 N and transmits the signal of ‘enclavamiento blocked' to the module of control of hygiene.

This principle of closing forced offers multiple advantages: there is not mechanical wear; it does not exist game between the actuator and the mechanism of blockade; and, in spite of the absence of game between the actuator and the enclavamiento, the system tolerates wide unfit in the door.

Besides, the smooth surfaces of the actuator and the enclavamiento facilitate his cleaning.

An integrated cheese cheese sensor, that works with the principle of pulse-echo patented of Schmersal, detects and controls the position of the door of hygiene. This technology employs also in other new devices of conmutación of Schmersal, like the AZ 200, the AZM 200, the CSS 34 and the CSS 180.

The MZM 100 fulfils the requirements of the category of control 4 as IN 954-1 or the level SIL 3 according to IEC 61508, and the principle of magnetic blockade fulfils, between others, the norm IN 60947-5-1. Given the innovative character of this principle of operation, the technicians that realise the essays for the certification BG have had to follow new methods to check that this solenoid offers a high level of hygiene, in spite of the absence of a mechanism of positive blockade.

Likewise, the new principle of operation tolerates greater unfit in the door. Besides, by means of an alone module of control of hygiene can supervise multiple devices of conmutación, without that see affected the level of hygiene, with the consequent saving of money and of space in the cabin of control. This control of common hygiene is possible even when the MZM 100 works in combination with devices of other series, like the switch of hygiene AZ 200 and the sensors of hygiene CSS 180 and CSS 34. For an efficient compilation of the information of diagnostic, Schmersal offers a “runway of diagnostic” based in Profibus.

By his compact size, the MZM 100 can fix easily in profiles of conventional machinery of 40 mm. His tolerance to the vibrations does it perfect for doors of light protection, as the ones of machines to pack and embalar. To the not presenting surfaces in which they can accumulate the dust and other particles, this component is especially indicated in conditions extremely polvorientas, as well as in applications in which it have to observe a high level of hygiene, as in the alimentary industry. Besides, the new enclavamiento by solenoid presents a class of high protection, the IP 69 K, what allows his cleaning to high pressesure.