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Empowering Industrial Safety with Carlo Gavazzi Safety Modules



In the ever-evolving landscape of industrial automation, safety remains paramount. Ensuring the well-being of workers and the reliability of machinery is not just a goal—it's a requirement. Carlo Gavazzi, in partnership with Power-Flo Technologies, presents an array of cutting-edge safety modules that are designed to meet and exceed the highest standards. These safety modules provide the assurance of safety while optimizing performance in various industrial applications.


Carlo Gavazzi's SM Series: Elevating Safety to New Heights

Carlo Gavazzi's SM series of multifunction safety modules is engineered to cater to Category 4, Performance Level "e" standards in compliance with the Machine Directive EN ISO 13849-1. These versatile modules offer safety control outputs with electromechanical forcibly guided relays and can effectively monitor a wide range of electromechanical safety devices.


Key Features of the SM Series

  • SMS20 and SMS31: These safety modules are the guardians of safety circuits in applications involving emergency stops, safety gates, safety magnetic switches, safety limit switches, and electromechanical interlocks. They're also instrumental in the safe control of lift car leveling, detection of uncontrolled movements of the cabin, and lift pit inspections, aligning perfectly with Lifts Standards EN81-20 and EN81-50.

  • SMSA31: This safety module oversees and controls safety circuits in gates with single or multiple accesses, integrated with safety magnetic switches and safety limit switches, switching safety inputs in anti-valent mode (NO+NC signals).

  • SM2H21: The perfect solution for monitoring and controlling the operation of two-hand control consoles (Type III C per EN 574-1). Safety control outputs are enabled only when both console buttons are activated simultaneously or within a maximum interval of 500 ms from each other.

  • SME41: As a safety expansion unit, SME41 operates as a relay expansion unit controlled by a master safety module, extending the number of safety relay outputs. It's compatible with master safety modules featuring safety relay or OSSD outputs.


Carlo Gavazzi's CM Series: Redefining Safety and Performance

The CM series of multifunction safety modules by Carlo Gavazzi sets a new standard for safety. Designed to meet Category 4, Performance Level "e" standards in accordance with the Machine Directive EN ISO 13489-1, these modules are also compliant with Functional Safety SIL 3 (SIL cl3) following EN 62061 Machine Safety guidelines.


Standout Features of the CM Series

  • CM22D0A, CM40D0A, and CM30D1A: These modules guarantee a secure interruption of safety circuits, making them ideal for applications involving safety light curtains (ESPE type 2 and type 4), safety light beams, emergency stops, electromechanical interlocks, safety gates, safety magnetic switches, and safety mats. These devices not only monitor but also automatically test the safe state of safety devices and ensure an interruption of the safety circuit through the OSSD safety outputs, which are under constant scrutiny to prevent short circuits.

  • CM22D0A (with Time Delay Function): This module takes safety to the next level by offering the flexibility of time-delayed OSSD safety outputs. This function is invaluable in critical machinery applications with high inertia, ensuring protection for a certain duration after the machine operation has ceased.


Applications across Industries

Carlo Gavazzi's multifunction safety modules are versatile and widely applicable across various industries:

  1. Industrial Machinery: These safety modules are crucial for applications involving E-stop, E-gate, limit switches, non-contact switches, safety light curtains, safety light beams, and safety mats. They offer comprehensive protection for equipment and personnel by monitoring multiple safety functions of industrial machinery, safeguarding operators from hazardous moving parts.

  2. Dangerous Moving Parts of Machinery: These safety modules ensure the safety-related interruption of safety circuits in applications with E-stop, E-gate, limit switches, non-contact switches, safety light curtains, safety light beams, and safety mats. They are designed to provide the most comprehensive protection for equipment and personnel.

  3. Control of Interlocks on Safety Gates: When it comes to protecting hazardous areas during machine operation, these safety modules are indispensable. They monitor emergency stop signals and control interlocks to lock and unlock safety access. Delayed intervention can be applied to allow motors or machines with high inertia to stop before granting access to the hazardous area.


Carlo Gavazzi's commitment to safety and performance, combined with the support and supply capabilities of Power-Flo Technologies, makes for a formidable partnership in industrial safety. With these advanced safety modules, industrial operators can trust in the safety and efficiency of their operations, ensuring the well-being of their workers and the reliability of their machinery.

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