1. There are many kinds of intelligent protection functions for motors, such as over-current, over-load, over-voltage, under-voltage and lack of equality.
2. Frequency converter and air compressor run synchronously, after commissioning and commissioning, no adjustment is needed, even if the die is replaced and the processing parameters are changed, no adjustment is needed to the frequency conversion energy-saving controller, and power frequency/frequency conversion switching is carried out at any time when the fault occurs.
3. Improve the power factor of power grid to reduce reactive power loss; avoid strong impact current starting of oil pump motor, limit its starting current within motor rated current, greatly extend the service life of hydraulic pump motor and oil pump.
4. After modification, the heating of hydraulic oil of air compressor decreases obviously, and the service life of hydraulic oil can be prolonged by reducing the average oil temperature by more than 15 C compared with that before modification; the cooling water consumption of air compressor can be saved by more than 20% and the service life of sealing parts can be prolonged; the intelligent pressure control can effectively prevent mechanical impact, prolong the service life and mechanical accuracy of equipment and dies.
5. According to the requirements of its forming process, the electro-hydraulic pressure and flow proportional control system is transformed into real-time load to realize power saving.