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| V5-IS asynchronous servo drive |
| Three ways of energy saving for injection molding machine:
1, V/F inverter + asynchronous motor, that is, the frequency conversion energy saving, no feedback system, the control accuracy is low, the production efficiency is reduced, which belongs to the elimination type.
2, vector drive + synchronous motor + speed and pressure feedback, that is, synchronous servo energy-saving, power saving effect is good, the installation of complex, high cost, high maintenance costs.
3, vector drive + asynchronous motor + current feedback, that is asynchronous servo energy saving, installation is simple, power saving effect is good, maintenance cost is low, the cost is high.
Asynchronous servo
For the injection molding machine energy saving, the servo system is realized by closed-loop feedback control, the system dynamic response is fast, the control precision is high.
Servo is the product of inverter Development to advanced stage, inverter is the mother of servo. The innovation of asynchronous servo system, which combines the advantages of variable frequency energy saving technology and synchronous servo energy saving technology, and overcomes the disadvantages of them. After the quantitative pump injection molding machine supporting the asynchronous servo, with a new competitiveness, the entire industry, has a subversive sense.
Asynchronous servo power saving principle
Injection molding machine power consumption is mainly used in the oil pump motor, so it is the key to reduce the energy consumption of the injection molding machine. In the quantitative pump hydraulic system, the motor to 50Hz high speed operation, the oil pump is basically unchanged, far greater than the actual flow requirements of the injection molding machine conditions, the excess pressure oil through the overflow valve all back to the tank, the energy is a huge waste. The fuel supply and the motor speed is proportional to the motor, so we can reduce the speed of the motor in every action, so that the oil pump with the actual flow of the injection molding machine is consistent, almost eliminate the overflow phenomenon, the motor can be stopped at the time of cooling, in order to achieve the purpose of the section.
Evaluation of power saving rate of asynchronous servo
The power saving rate is mainly determined by the process parameters of the mould, the speed of technological parameters (0 ~ 99%) and the energy saving rate are the biggest, the speed value is smaller, the power saving rate is higher. If the mold speed value is generally between 0 ~ 30%, saving rate can reach 70% around; if mold plastic injection and melt rate value generally in more than 90%, and no net cooling time (molten plastic end on mold), the saving rate can only reach about 25%.
Asynchronous servo energy saving advantages
1, good energy-saving effect, power saving rate is generally reached 25%-70%;
2, improve the production efficiency of injection molding machine;
3, drive failure does not affect production;
4, using three-phase asynchronous motor without demagnetization problems;
5, the installation is simple, do not need to replace the motor and oil pump, cost-effective.
Excellent characteristics of V5-IS asynchronous servo injection molding machine:
The current and voltage of excellent control technology, to accelerate the 0.1S instruction, drive stability without tripping operation.
] a wide range of torque output: set in the pressure and flow range motor torque output stability, ensure the quality of workpiece.
- Green output: power module using advanced driving mode, not to interfere with the control loop and the sensor of injection molding machine.
The process has the memory function curve, the user does not need to change the parameters of energy saving system for the replacement of the mold. | | | author: Published at: 2015/8/3 14:40:01 |  |
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