SCC-1224ND

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SCC-1224ND Application Field and Working Principle

The SCC-1224ND is a type of controller for machine safety, manufactured by Siemens Industry Automation. It is a 4-channel controller designed to provide a reliable and easy to install safety solution for safeguarding machines and personnel in hazardous industrial environments.

The SCC-1224ND is designed to provide reliable monitoring and control of safety critical functions in a wide variety of applications, from general purpose machines to more complex industrial processes. It can be used to ensure the safety of operators, by providing reliable detection of hazardous conditions such as over-speed and over-temperature. Additionally, it can be used to control the movement of hazardous material, as well as providing secure access control in areas where electronic access control is needed.

Technical Specifications

The SCC-1224ND is a 4-channel controller, which allows the connection of 4 independent safety functions. It has a 5-digit display and a combination control knob/pushbutton which allows for easy setup and programming. The maximum switching capacity of each channel is 15A at 480VAC/60Hz and 30A at 300VAC/60Hz. It can also be used with AC voltages up to 600Vac, and DC voltages up to 60VDC.

The SCC-1224ND has both input and output safety relays, allowing it to monitor and control separate safety functions independently. The output relays have 4 programmable functions, 2 monitored and 2 unmonitored. Each monitored output relay can be programmed to trigger on over-speed or over-temperature conditions, while the unmonitored outputs can be used for general purpose control.

In addition to its safety features, the SCC-1224ND has a multitude of control options, including 6 user-selectable modes and 3 multi-functional programming options. It is also capable of communication with other systems through Ethernet, USB, and RS485 protocols.

Applications

The SCC-1224ND is suitable for a wide range of industrial safety applications, including machinery and equipment safety, as well as general process control. It is an ideal solution for safeguarding personnel or controlling hazardous material and processes in a wide variety of industrial settings, including manufacturing, mining, and power production and processing.

The SCC-1224ND is particularly suitable for applications where hazardous conditions, such as over-speed or over-temperature, must be detected and reliably controlled. It is also suitable for controlling access to areas with hazardous material, where secure authentication is required.

Working Principle

The SCC-1224ND is designed to work in conjunction with safety switches and other safety devices. These devices are left connected to the SCC-1224ND and they are monitored continuously. When the safety switch senses a hazardous condition, it activates the SCC-1224ND, and the controller will then activate the monitored output to stop any further process or movement.

The SCC-1224ND also uses input and output relays for communication. The input relays are used to monitor specific safety conditions, while the output relays are used to control specific processes or movements. The user can program the SCC-1224ND to activate the output relays when specific events occur. For example, the output relays can be programmed to activate when an over-speed or over-temperature condition is detected.

In addition to its dedicated safety functions, the SCC-1224ND can also be used for general purpose control. It can be programmed to activate output relays for specific events such as the opening or closing of a door, or the turning of a machine on or off. It can also be used to control access to areas with hazardous material, by providing secure authentication for entry.

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