Industrial power supplies have always had to fulfill certain basic requirements, such as high energy efficiency and durability. These are the areas in which devices developed for industrial use particularly excel. With levels of efficiency above 95%, they are gradually approaching the limits of what is physically achievable and there are now new challenges. In the modern era of Industry 4.0 systems and the Industrial Internet of Things (IIoT), all the components of a production environment are connected via a digital infrastructure. The strict master/slave architecture of the last wave of automation is giving way to a fully-fledged intelligent organization. This means, of course, that all integrated components need to be 'smart', including the power supplies working in the background. This is why Weidmüller has developed a system comprising a power supply, electronic circuit breakers and a communication interface that can be adapted to any application. The system is based on the PROtop series of power supplies.
PROtop power supplies provide power, energy efficiency, and communication capabilities in equal measure. Higher efficiency levels of up to 95.3% –
An efficient power supply needs to have high pulse energy reserves to enable powerful motor starts, for example. With their cutting-edge DCL (Dynamic Current Limiting) technology, PROtop power supplies are able to guarantee this. This is important in materials handling applications, which often employ 24 V DC motors. The power supply provides the reserves needed to start a motor under load. The high dynamic range of PROtop devices also ensures the reliable triggering of circuit breakers. Conventional switched-mode power supplies inherently limit the output current which means that protective elements may not necessarily react in the event of a short circuit. A fault can thus remain undetected and possibly result in damage. With power reserves of 600% for 15 ms, PROtop power supplies are able to safely trigger each circuit breaker.
Especially critical applications often have a redundant power supply. But short circuits can also occur in the power supply itself. Conventional redundancy concepts provide redundancy or diode modules, which decouple the power supply units in the event of a fault. These separate components, however, result in additional installation and space requirements. PROtop power supplies have an integrated decoupling module based on an ORing MOSFET. This allows the power supplies to work in parallel without additional protective measures. System costs are thus reduced, and more than 30% of space can be saved in the control cabinet.
In industrial IoT, all the components of a production environment are interconnected via a digital infrastructure and must therefore be capable of
This intelligent networking between machines, control cabinets, and IT system open up completely new control, monitoring, and analysis solutions. With its communication-enabled load monitoring system topGUARD, Weidmüller is giving machine and system operators the ability to develop new services for diagnosing and optimizing their processes for the first time. Simply put, the system generates added value from machine data. The power supply or load monitoring system can be controlled remotely and integrated into the condition monitoring system, thereby reducing power consumption and the planning of maintenance work. This significantly increases the functional reliability and profitability of a wide range of systems – such as food and packaging systems in 24/7 operation as well as hard-to-reach offshore wind farms.
The infrastructure of the modern equipment field is made up of intelligent networks for data, power, and sometimes materials. To provide reliable protection against dirt or moisture in the field, components such as PROtop or topGUARD can simply be integrated into a robust IP65 housing. This makes it possible to implement supply systems in line, ring, or even grid structures, including fused load output circuits, and to monitor them via Fieldbus connections. It goes without saying that Weidmüller also offers more cost-effective power supplies, which do not have the communication capabilities but otherwise fully meet the typical requirements for industrial use. With many other components available, such as uninterruptible power supplies or capacity modules, exactly the right DC supply can be implemented for each application. Weidmüller is thus able to offer the most suitable power supply for every application from a single source.