The Main Control Unit (MCU) is the smart hub of the HSI Modular inverter system. It allows the synchronised operation of up to 12 power modules. These are connected to the MCU via LAN cables. Within a few microseconds, the MCU receives the information from the individual power modules, processes it and returns control values to the individual power modules (PM150). The sensorless field-oriented control of the high-speed machine or the grid control of the AFE is performed on the MCU.
The control can be customised with a control frequency of up to 50 kHz. This facilitates accurate adjustment control of equipment with high rotational speeds or fundamental frequencies. The existing fieldbus interface (Profinet, MODBUS / TCP) can be used to connect the inverter system to a upper level control system (eg PLC). The existing I/Os enable the control of external components.