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Function and Application of pLc Frequency Conversion Control Cabinet

Release time:

2022/10/24 20:24

Composition of the cabinet:

1 air switch. PLC control cabinet is a general ventilation power switch, is the switching power supply circuit of all doors, is essential for each high voltage switch cabinet.

The PLC shall be selected according to the new project. If the new project is not large, the integrated PLC can be used immediately. If the new project is very large, it may also need the type of controller and card, or it may need to be solved (I. e. 2 candidate applications).

24V DC switching power supply A 24V DC regulated power supply transformer. Most PLCs are embedded 24-volt DC switching power supplies. The need for such a toroidal transformer should be determined on a case-by-case basis.

Generally speaking, PLC can immediately push instructions to the control circuit, but it can also migrate the process according to the automobile relay. If your PLC outlet is 24VDC for induction, but the diagram drawn in the control circuit must be connected to 380VAC through PLC, then an automobile relay must be added to the PLC outlet, that is, when the instruction is transmitted, the attitude of the solenoid valve allows the node of the control circuit to accept the on-break point or normally open and normally closed point of the automobile relay. It is also based on the actual situation to choose whether the application of automotive relays.

The terminal block is indispensable for every solid wood cabinet, and it can also be assembled according to the total number of signals. If there is only a simple PLC control cabinet, then this is basic. If there must be other industrial equipment in the PLC control cabinet, it depends. For example, you may also need to power some car dashboards or small and medium-sized control cabinets on site, and you may also need to increase the total number of air switches. PLC is still needed to guide the server mobile phone software. Depending on the circumstances, it is likely that the switch will have to be updated.

PLC inverter control cabinet is a system composed of servo drives and external devices controlled by PLC. It shows and protects. AC motor speed control three-phase AC motor AC drive and energy-saving device (including centrifugal fan and centrifugal water pump). Compared with the traditional inverter control cabinet, pLc is characterized by PID adjustment.

Frequency converter control cabinet function:

Power switching and protection: PLC frequency conversion cabinet is equipped with isolation switch, which is connected with incoming switching power supply. In addition to the switching power supply circuit, it can also protect the circuit and the open circuit and load of the frequency conversion. The power can be turned off during maintenance.

Start-stop control function: PLC frequency conversion cabinet control panel is equipped with industrial touch screen, frequency conversion start-stop button for the operation control of frequency conversion device. Keys can also be assembled on the panel.

The panel of PLC inverter power supply cabinet is equipped with ammeter, ammeter, frequency meter and various display lights, such as indicator light, alarm indicator light, operation display light, DC display light, etc. Then supervise the input voltage, output current, output frequency and various conditions of the inverter power supply, which is very visual. These data can also be seen on the industrial touch screen

Communication function: PLC inverter control cabinet can be connected with upper computer software to complete remote operation, monitoring and remote communication.

Frequency control cabinet applications:

Frequency control cabinets are widely used in metallurgical industry, chemical plants, crude oil, power supply, mining, decorative building materials, motors and other industries, such as pumps, centrifugal fans, air compressors, extruders, plastic machines, belt conveyors, etc.

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