First, the working principle of the wire drawing machine:
The wire drawing machine is a small continuous production equipment composed of multiple drawing heads, and the steel wire can be cold-drawn to the required specifications at one time through step-by-step drawing, so the work efficiency is relatively high. However, since the wire diameter of the wire changes after each stage of drawing, the working line speed of each drawing head should also change.
The wire drawing machine puts forward higher requirements for the performance of the inverter, and the inverter should have the following performance.
1. High low-frequency starting torque, strong overload capacity and high speed accuracy
2. There is a built-in PID function, and the parameters of PID are abundant
3. Fast dynamic response
2. Features of Lenze 93EV inverter:
The 93EV inverter is a high-performance vector inverter with the following features:
1. Excellent driving performance: 180% torque overload output; Zero-speed full torque output
2. Integrated PLC function design: with switching operation and analog operation and other functions
3. Built-in editable function module unit
4. Abundant automation networking functions
5. Integrate a variety of typical applications: reciprocating control, constant tension curl control with coil diameter calculation, torque control, speed following and synchronization control, step control and other functions.
3. The application of 93EV inverter in wire drawing machine
As the driving device of the straight wire drawing machine, the inverter also fully meets the requirements of the wire drawing machine in actual use, with fast response, large starting torque, strong overload capacity, built-in PID, rich PID parameters, and at the same time, due to the integration of 93EV digital frequency cascade function, it can realize high-speed digital frequency synchronization with encoder signal following, and its working principle is as follows:
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