PARTNER FOCUS
supply: it starts with the system planning process, which offers greater freedom. There are many applications, such as conveyor belts or production lines that can be supplied with energy much more efficiently and flexibly on a decentralised basis. The power supply no longer has to be oversized, and the individual system parts can be put together on a modular basis, allowing them to be extended, maintained, and converted more quickly and effectively than ever. By making the cabinets smaller, or even doing
away with them entirely, the newly gained space can also be used to expand added-value system components. The power cable lengths and cross- sections can be reduced, which in turn saves on the costs of copper.
PAST OBSTACLES ON THE ROAD TO A DECENTRALISED POWER SUPPLY The cost of implementing a decentralised power supply does however remain high using currently available solutions. Even straightforward, decentralised on-site cabinets, for example, often comprise more than 10 components. All of these must be purchased, stored, and
ultimately combined into a system by a technician. As for developing customer-specific solutions, this is even more time consuming, expensive, and only worthwhile in larger volumes. Until now, there has not been a decentralised standard power supply that is available to order ex stock, is easy to install, and flexible enough to offer a viable alternative in all three of the above scenarios.
STRAIGHT FROM THE CABINET TO THE FIELD Relocating the power supply from the control cabinet directly into the field provides an all-in- one power supply system for decentralised systems engineering. It is then possible to use shorter cables and smaller cable cross-sections. This not only saves on the costs of copper, but
also on the installation work for the cabling. Local on-board set up and diagnostics makes system commissioning, troubleshooting and maintenance simpler.
PULS CABINET-FREE POWER SUPPLY SYSTEM AS A SOLUTION PULS are closing this gap in the decentralisation market with the development of their FIEPOS power supply product family. This opens up new worlds of possibilities for systems designers by providing cabinet-free planning of their systems and machines. The FIEPOS range is based on 1-phase and 3-
phase IP54–IP67 power supplies with 300W or 500W output power. It also features an IO-Link or output OK signal as a communication interface. The various versions are based on this platform with numerous connector configurations as well as optional safety and redundancy functions. PULS classifies the devices
into the two FIEPOS product series of Basic and eFused. The devices in the Basic series have a single output, for which the various plug connectors such as M12-L/-T/-A, 7/8”, or the HAN-Q series are available. In addition, the Basic version is also available with an integrated decoupling MOSFET on the output side and a soft output regulation characteristic. These two functions make the devices particularly useful for assembling reliable redundant systems outside of the cabinet
MAY 2021 | ELECTRONICS TODAY 37
and help to increase performance by establishing parallel connections. The FIEPOS eFused series comes complete with
up to four internally protected outputs. Thanks to the built-in current limit, these devices can easily be used for selective current distribution and protection. The outputs are configured and monitored via IO-Link or via the practical human- machine interface located directly on the front panel of the device.
PULS UK Ltd.
www.pulspower.com
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