Replacing the DC drive control scheme in the retractable line layer winding system-2015-03-20
Time：
2026-06-04 21:47
一、the original application plan description:
In some pipeline processing processes, there was no intermediate traction and drive, only to achieve the side of the material, and at the same time, the line was received. In this application, the speed of the pay-off motor and the take-up motor are synchronized and the tension was kept stable. The pay-off and take-up can be switched in both forward and reverse working states. The general solution was to use a DC motor and an AC motor. The DC motor follows the speed of the AC motor and maintains the tension.
二、V&T program description:
Whether working in the forward or reverse direction, the linear speed of the system was determined by the speed of the reference motor, while the speed of the other motor was tracked by the reference motor. Replace the original DC motor and DC drive with AC motor and V&T inverter, which can realize quick start and stop under any dwasc weight, and maintain fast response to line speed command and retractable line motor during the whole work process. Precwase synchronization.
三、the advantages of the V&T program:
Reduce system cost, DC motor and DC drive are completed by AC motor and AC drive;
The AC scheme fully guarantees the control accuracy of the original DC scheme, and the acceleration and deceleration process can be more rapid and stable;
Realize the direction of the positive and negative work direction, without any parameter adjustment, a button command can be;
The starting torque was large and the brake was fast. There was no need to mechanically cooperate with the jog brake, thus improving the quality of wire processing;
四、the applicable machinery:
High-speed and high-precwasion layer winding machine and tie machine.
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