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Power charger unit

With CANopen option

Published 2018-06-27

The Power Chargers generators from Eltex cover a variety of power levels and charging applications. CANopen is available.

Electrostatic charging does not always have negative consequences; when used for specific purposes it is downright useful in many areas (Photo: Eltex)

The units are operated with a supply range from 24 VDC or a supply voltage ranging from 85 VAC to 264 VAC depending on the design. The output is 75 W or 150 W. The generators are controlled using a membrane keyboard or an integrated touch panel available as an option. The products can be operated as analog devices or over digital fieldbus interfaces. Control through CANopen is also available. The modular system is ready to integrate additional fieldbus standards. Using the Eltex Connected Control touch-based monitoring control system, multiple generators can be managed from a central location.

A software concept enables control of the high voltage. The software detects fluctuations due to load changes, compensates for them, and ensures high voltage start-up times in milliseconds. The software detects electrical arcs early. Users have the opportunity to adjust the sensitivity to the respective process. Integrated memory records the operating states of the Power Chargers. An addition now also logs user-side changes to parameters.

In addition to a variety of protective devices on the inside of the generator, several features protect the high-voltage output from excess current and voltage. This extends the service life of the control system and parts generating high voltage. Automatic power derating adjusts the generated voltage or current to the configured operating mode. Depending on the equipment variant, a pollution monitoring system for the connected bars provides process reliability.

User safety has been re-examined during the development of the product. The generator will also be available in performance level D in the future. An entirely new plug system enables contact with the inserted bars. Continuous refinement is bringing hardware and user protection to a higher level with each step.

The charger is ideal for all charging applications. Targeted charging, for example, enables the creation of foil layers during laminating and bubble-free surfaces, even when working at a rapid pace. Work on reelers is possible without any adhesive tape; the web can be secured at the reel core. Proper use of charging components supports edge-to-edge winding of foils.

In many applications, a combination of both charging and discharging is useful and relevant to safety. The positive effect of charge buildup at one spot can cause problems for downstream processes. This is why it is important to always look at the complete production workflow when integrating charging components.