While Koch's DC management systems are mainly used for peak shaving of voltage on the DC bus of servo and frequency controllers, there is now also the option to base this on current. The Pxt modules will then have an extra box on connection terminals, together with current measuring sensors for the three phases.
Additional load peaks are then not absorbed by increasing the load on the grid, but are provided by the active Pxt modules.
Now machines and equipment that are designed for the maximum peak load can be scaled much lower. This saves on more expensive connections, heavier switchgear and larger drive components. Standard nominal current limits of, for example, 32 or 63A may already be sufficient.
This assembly is available in the size of a shoebox in 20A continuous at 2kJ of energy up to several 100A's and Mega Joules of energy housed in a large switch cabinet. The function can be visualized in real time via the PxtTerminal tool, which is used for any parameter setting and monitoring of the Pxt DC management system.
Optionally equipped with EtherCAT, PxtMX also enables integration into a fieldbus network.
When adapting existing machines to a higher production level or when machines are connected to weak electricity grids, the Pxt system in combination with the PxtMX module immediately proves its value.
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