Field Power Supply


Decentralized, Cabinet-Free Power Supplies

The need for flexible, modular systems is shaping machine and system engineering. Decentralization of the system components has proven to be an important factor for success. It speeds up system planning, simplifies maintenance and enables an easy expansion of the system. In addition, control cabinets can be replaced by smaller versions or even completely dismantled.

With FIEPOS, short for FIEld POwer Supply, PULS presents a new type of power supply that was developed precisely for this environment: A decentralized field power supply with protection class IP54, IP65 or IP67 that is readily available, easy to install and flexible enough to meet the diverse requirements of modular factory automation.

In short, PULS' field power supplies are the alternative to a power supply in the centralized control cabinet, decentralized on-site control box or a customer-specific solution.

So what exactly is going on with the power supply in decentralized systems and machine engineering? The products currently available on the market basically allow three different strategies:

1. No decentralization of the power supply

The power supply is not included in the decentralization process and remains in the central cabinets. When it comes to supplying the decentralized peripheral devices in the field, long cable harnesses with a large cross-section have to be taken into account. The power supply has to be oversized due to the loss of performance caused by the long cables.

2. Power supply in a decentralized on-site cabinet

The power supply – along with other standard components such as electronic fuses or switches – is taken out of the central cabinet and placed directly onto the machine in smaller, decentralized IP67 cabinets. Companies often handle the planning and assembly of these cabinets themselves.

3. Customer-specific solution

A customer-specific, decentralized solution is developed especially for the power supply. The size and mechanics are also specifically tailored to the system along with the electrical specifications.

Traditional system design with central IP20 power supply
The centralized supply of peripheral devices in the field requires long cable runs with a large cross-section. Due to the power losses caused by the long cables, the power supply must be over-sized.

Modular system design with IP54, IP65 or IP67 power supplies
FIEPOS field power supplies are perfect for supplying spacious applications with energy in a decentralized, efficient and flexible way. This enables a modular system structure as well as an effective expansion, maintenance and retrofitting of individual components of the system.

Save cost, time and space.

The compact housing with a high degree of ingress protection (IP54, IP65 or IP67) and various connector options enables the FIEPOS power supply to be installed flexibly outside of the control cabinet and directly on the machine.

Ease of Use
The output voltage and the current-limited outputs (eFused series) can be monitored and set directly via the LED interface and the push buttons on the front of the device or remotely via IO-Link.

Cost Savings
FIEPOS field power supplies make it 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. In addition, an all-in-one device can be used instead of several components. This means less effort in managing part numbers and less time effort in installation.

Space Savings
Thanks to the integrated, current-limited outputs in the FIEPOS eFused series, no additional protection module is required. This saves space in the system. In addition, centralized control cabinets and decentralized on-site control boxes can be reduced and the space can be used to expand the system. Fewer components also mean more free space in the warehouse.