Demag SCU safety control system

The variety of Demag Drives solutions includes mechanical and electronic components to set your solution in motion. The Demag SCU safety control system serves as a safety net for the user. Integrating safety functions into the control systems of drives and system solutions minimises risks to people and the environment and enables safe and error-free operation.

The intelligent control system can also be used for applications in which safe operation must be guaranteed at various points of a system, e.g. for crane spacing and anti-collision, synchronisation monitoring or when crane spacing is required for static reasons. In addition, the SCU is used to monitor load capacities, for example in crane load monitoring or total load monitoring in cat. 3 PL d.

Smart and safe

The SCU safety control system aims to safeguard applications and ensure reliable operation.

Demag SCU safety control system

• Protection of people. Minimisation of the risk of accidents and hazardous movements of the driven machine or system.
• Increased operational safety. Prevention of damage to the specific machine or system and to surrounding machines or systems.
• Increased system availability. The SCU constantly monitors the machine or system, thus ensuring functionality and minimising downtime due to faulty controls.

To achieve this, various functions are integrated into the SCU.

Safety related functions

All safety-related functions are monitored by a redundant system. Within the Demag SCU, two processors work independently of each other and monitor each other. With the help of this control system, signals from emergency stop switches or safety devices such as light barriers or lasers can be processed and evaluated so that a potentially hazardous situation in a system is recognised at an early stage and averted in good time by assuming a safe state. This means that the Demag SCU safety control system is the right choice even in the event of a fault.

The safety procedures can be easily programmed in the control system. The visualisation in graphical blocks helps the operator to quickly understand and supports the logical structure. This makes it easier to integrate various electrical components such as light barriers, laser scanners or load sensors.

Redundant and safe

In safety-critical applications, redundant systems are installed and parameterised which include the Demag SCU safety control system so that it can continue to operate in the event of a fault in the system and independently switch the system to a safe state. This can be, for example, a local direct stop function.

The machine risk is assessed by the SCU safety control unit. The monitoring sensors provide the necessary data for assessing the situation.

Uniform standards require the necessary safety level of a system or machine. The performance level (PL) describes the safety and reliability of a system with its safety levels from a to e. The Demag SCU safety control system allows the construction of systems or machines up to the highest performance level of e.

The right configuration for your project

The Demag SCU safety control system offers a large variety of safety modules and components, and can also be easily adapted to complex or unconventional applications. The safety control system is programmed via an intuitive interface and linked to the system via interfaces. This allows flexible adaptation to the operator’s wishes. The user interfaces (HMI) are used for easy-to-understand monitoring and control.

Demag configurators