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ADVERTISEMENT FEATURE COVER STORY POWER DECENTRALI Selective current distribution and protection directly in the field.
Kamil Buczek, product manager rugged products; Sebastian Lederer, new product & application engineer; and Maximilian Hülsebusch,
marketing communications specialist, PULS, examine how an all-in-one power supply can meet design requirements
Decentralised Power Supplies
components has proven to be an important factor in this growing trend. It speeds up the system planning process, simplifies installation, maintenance and facilitates future expansion. For many systems builders and installers, the
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power supply has been an obstacle on the path to consistent decentralisation. This is particularly where functions such as selective current distribution, protection and condition monitoring needs to be implemented, while providing maximum reliability and uptime. This article will explain how it is possible to achieve these requirements with an all-in-one power supply.
DECENTRALISED POWER SUPPLY: THE CHALLENGE AND THE SOLUTION The challenge:
An obvious solution is to design a system which can be mounted directly on a machine or the installation. The power supply and other
he demand for flexible, modular systems is shaping the world of automation, control and machine building. Decentralisation of system
The result will be a small, decentralised on-site
cabinet for which the individual components have to be selected, ordered, stored, assembled and installed – a time consuming and complex task. In most cases there is very little space
available on a machine to locate a control system, so finding a location for this cabinet can be problematic. Engineers often need to be creative, positioning the cabinets above or below the system, making access sometimes difficult for installation and service technicians.
standard components such as electronic fuses, communication terminals, distributor blocks or switches are relocated from the central control cabinet to smaller enclosures directly in the field. The installation of these components outside of a fully environmentally protected central cabinet means they will require a high IP rating individually to ensure protection against dust and moisture. Providing protection to class IP54, IP65 or IP67 may be required, depending on the application.
12 DESIGN SOLUTIONS DECEMBER/JANUARY 2024
The all-in-one solution: A compact all-in-one solution for decentralised applications is now available from PULS. The new FIEPOS Field power supply family is based on a modular platform developed specifically for use outside of a cabinet. All models are based on either 1-phase or 3-phase input power with either a 300W or 500W output rating. All devices in the FIEPOS family provide 120% power continuously (up to +45˚C) and 200% for 5s making them suitable loads with a demanding start-up cycle. With a housing size of only 182 x 183 x 57mm
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