Efficiency always has to do with a precise fit. Processes can only run safely and efficiently if the solution is tailored to the problem based on needs. This firstly requires a sound knowledge of the parameters, and secondly products that are able to offer a high level of efficiency. This is exactly where AMKmotion comes into play: at the SPS, the drive specialist will be presenting its extensive motor portfolio and central converter technology with the latest generation of controllers, and demonstrating how highly efficient systems can be set up based on intermediate energy storage and energy recovery, for example. The KES compact power feed transfers regenerative energy back to the grid by means of sinus commutation, thereby reducing electricity costs. In addition, the variable DC bus makes the system less dependent on the local power supply voltage.
Another building block towards achieving greater energy efficiency: hybrid drive concepts. Modularized mechanical engineering uses decentralized drives that do their job directly at the point of action. However, power-intensive processes usually require the installation of a central automation solution with a switch cabinet. By combining both solution approaches, users can benefit from the advantages offered by each one. This is particularly easy when the components are at home in both worlds.
One of the ways in which AMKmotion supports its customers is with the hybrid distributor KHY, for example. This simplifies the combination of different signals and supply voltages from the central drive level. In this way, the distributor serves as an intelligent interface to the decentralized drive environment. The standardized interface is designed as a module – simply expanding central switch cabinet devices. Safety fuses are integrated for short-circuit and overload protection. In addition, the KHY monitors the DC bus current and the decentralized drive train via an I²t counter. The switch-off response can be configured individually.
Another component from the hybrid world is the iX decentralized servo inverter. Thanks to its protection class IP65, it is also suitable for mounting close to the motor in harsh environments. It can be supplied both on a decentralized basis and from the central switch cabinet. Several inverters can be wired together based on the daisy chain concept, while the DC bus, STO and 24 volts can be looped to other decentralized controllers via the iX. Real-time communication takes place via a separate fieldbus cable.
AMKmotion will also be presenting its energy-efficient iC servo converter at the SPS. This can supply an axis with up to five kilovolt amps and also provides a DC bus and 24 volts for additional servo inverters. It too has IP65 protection as well as being shock and vibration resistant. Instead of installing the iC in a switch cabinet, the user installs it directly in the machine. This is achieved in a space-saving manner, as the servo converter is accommodated in a light and compact aluminium housing. Further simplifying installation, the AC feed-in only requires one line for the grid connection. An integrated charging resistor also serves as a brake chopper, meaning external components are no longer required.
In addition, AMKmotion will be exhibiting its generation of motors trimmed for energy efficiency with high power density. Here, energy input is only required for the movement itself. Trade fair visitors will get to see the synchronous servo motors of the DT and DD series, for example. The DT motors allow high-torque positioning of larger masses and high cycle rates. The modular and highly dynamic DD motors enable cyclic positioning of low masses.
