In particular, where it is necessary to implement functions such as selective current distribution, protection, and status monitoring, all while providing maximum reliability and uptime. This technical report will explain how these requirements can be achieved with an all-in-one power supply.
PULS, distributed in Spain and Portugal by OLFER Electronics, now offers a compact, all-in-one solution for decentralized applications. The new FIEPOS family of field power supplies is based on a modular platform developed for use outside the cabinet. All units are available in single-phase or three-phase versions with a rating of 300W or 500W. All devices in the FIEPOS family provide 120% of their rated power continuously (up to +45°C) and 200% for 5 seconds. This makes them suitable for starting demanding loads.
With a housing size of only 182 x 183 x 57 mm (Width x Height x Depth), they can be installed even in space-constrained applications. The units can be mounted via a DIN rail or surface-mounted using a variety of mounting holes.
The FIEPOS product family has two versions: the Basic series with one DC output and the eFused series with up to four current-limiting DC outputs to ensure simple, selective power distribution, protection, and monitoring directly in the field, without the need for additional accessories or costly enclosures.
FIEPOS eFused series power supplies offer an alternative to power supplies protected by an external four-channel electronic protection module, four external fuses, or circuit breakers. 
In the event of a short circuit, the power supply selectively switches off only the faulty output and reports this via the IO-Link or Output-OK signal and the LED interface on the front of the device.
The tripping current for each individual output can be configured using the buttons on the device's front panel. A different characteristic curve applies in each case, depending on the set tripping current.
eFused power supplies have an integrated selectivity function that allows for prioritized protection of sensitive loads.
Seamless networking and communication between the various system components enable comprehensive system status analysis and early detection of system anomalies. This allows for cost-effective preventative maintenance, minimizing system downtime.
FIEPOS power supplies incorporate IO-Link technology, a globally standardized communication interface suitable for industrial use, featuring bidirectional point-to-point serial communication between an IO-Link device and the IO-Link Master. This information enables the detection of abnormally high transient overvoltages in the power supply. It can also identify which current-limited output has tripped, and channels can be remotely reset.
All this information can be analyzed in a central monitoring system, enabling appropriate preventative maintenance and increasing system reliability while reducing maintenance and operating costs.
As an alternative to IO-Link, eFused power supplies in the FIEPOS product family are also available with an Output-OK interface.
A power supply solution based on the FIEPOS flexible product family is a decisive step on the path to comprehensive decentralization and allows the highest degree of flexibility in system planning.
