Energy Saving Frequency Conversion Combined Control System

Energy-saving control cabinet is connected with multiple air compressors for energy-saving control.

The interlocking cabinet is a frequency conversion linkage device designed for air compressors. According to the pressure of the pipe network, the unit frequency conversion, constant pressure and linkage control can be realized. The interlocking cabinet can realize any and only one frequency conversion of the unit, and can freely switch the frequency conversion after the equipment stops.
The cabinet has local and remote control functions, and each unit operates independently in local mode.

In the case of remote mode and remote mode operation, the pipe network pressure is lower than the set value of the interlocking cabinet, and the frequency conversion control unit accelerates operation. When the operation reaches the highest frequency and does not reach the set value, the interlocking cabinet delays the start of the next unit. On the contrary, the pipe network pressure is higher than the set value of the interlocking cabinet, and the frequency conversion control unit decelerates operation. Cabinet delay to stop the next unit.

Due to the characteristics of the factory, the equipment can not be shut down. If the equipment can not be turned on and normal gas supply is caused by a major failure of the interconnect cabinet itself, the consequences are very serious.

In order to avoid this major problem at the beginning of the design of the interconnect cabinet, the disaster recovery casting function of the interconnect cabinet was added in the design. When the interconnect cabinet fails and the power frequency conversion cannot be selected and the machine cannot be started, the disaster recovery casting function of the interconnect cabinet can be started manually on the side of the machine when ensuring that all the display devices of the machine have stopped. Eliminate the worries of the failure of the joint control cabinet.