Two inverters synchronous control problem - Database & Sql Blog Articles

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First, both inverters are required to have vector control functions;
Second, it is required that both inverters can accept the signal of the encoder interface circuit, and must be A/-A; B/-B; Z/-Z;
Third, synchronous control unit + inverter master / slave control.
This is the most basic form and structure. The synchronization control unit may be a plc, may be an additional interface card, or may be a computer. In short, the form and cost are completely dependent on your process requirements and control accuracy.
Synchronization with low accuracy is required to use a given signal of 4-20 mA, and a common DC bus, the power generation state is not afraid. Such as conveyor belts. However, if the machine tool and the crane application are synchronized, the higher the accuracy, the better.