Control and Monitoring of Speed and Torque of Crystal and Crucible Rotary in Crystal Growth Process and Based on LabVIEW Programming

In this paper, an appropriate method is presented to data transfer speed and slaves distance from master. Speed controlling and torque monitoring of servo motors (5pcs) were done by Labview software, and also master and slave connection was performed by Modbuse protocol. By writing a program based on labview for data exchange in modbus protocol, archive automation and store sampling values, torque and speed of servo motors were monitored. In this program, communicating flowchart with servo motor drives and sending of commands in modbus protocol and receiving of torque values (analogue values) were created by PCI_GPAD1916 card. Also, programming in Labview software were done based on the created flowchart. The results showed that this method has high speed sampling and signal processing.