IP54 Electrical Control Cabinet Automation Frequency Conversion PCL Control Panel

Electrical automation frequency conversion control cabinet PCL control cabinet

technical parameter

Overview

The PLC control cabinet is an automated control device that integrates PLC, industrial panel computers and electrical control loops. It has compact structure, stable work and complete functions. It can be combined according to the actual control size, which can realize single-cabinet automatic control, or multiple cabinets to form a distributed (DSC) control system through industrial Ethernet or industrial fieldbus network. The PLC control cabinet can adapt to industrial automation control occasions of various sizes. It has been widely used in industries such as electric power, metallurgy, chemical industry, papermaking, and environmental protection sewage treatment.

The PLC in the PLC control cabinet uses Siemens PLC, the tablet computer uses the MCGS industrial tablet computer, and the electrical control loop uses Siemens or Schneider components.

The PLC control cabinet has front and rear doors, the front door is a single door, and the back door is a double door. A voltmeter, ammeter, tablet computer, control buttons and indicator lights are installed on the front door panel. There are two front and rear galvanized mounting plates in the center of the cabinet. The front mounting plate is equipped with PLC, signal isolation transmitter, control intermediate relay and control signal input and output terminals. The rear mounting board is equipped with circuit breakers, AC contactors, thermal relays and electrical output terminals for electrical control circuits.

The PLC control cabinet adopts three-phase five-wire system for power supply, and a single cabinet has a large installed capacity of 280KW. A transient absorber is installed between the power supply line and the equipment ground, which can effectively prevent damage to the equipment due to lightning strikes.

PLC control cabinet (single cabinet) can control up to 32 electrical circuits

The PLC control cabinet (single cabinet) can accommodate 16 channels of 4-20MA analog input, 96 channels of digital input, 4 channels of 4-20MA analog output, and 32 channels of digital output.

The PLC control cabinet has the function of "automatic, stop, manual" selection. When the "automatic" function is selected, the system will automatically control the operation of the corresponding electrical circuit according to the set parameters and procedures. When the "Stop" function is selected, the system will forcibly stop the corresponding control loop. When "manual" kinetic energy is selected, the corresponding control loop can be directly activated.

The industrial tablet computer used in the PLC control cabinet not only has the functions of a general industrial control computer, but also has the advantages of small size and convenient use. It uses the Windows CE system, and the system will not be infected by viruses. The tablet computer mainly completes the control cabinet The parameter setting of this cabinet is used to monitor the operation of the control electrical equipment of this cabinet in real time in a dynamic graph mode, and give a fault alarm to the abnormal electrical equipment of the cabinet. On the tablet

The operating dynamic graphics of the electrical equipment controlled by the cabinet is displayed on the LCD screen in real time. When the equipment is operating normally, it is displayed in green; when the equipment is stopped, it is displayed in red. When the equipment alarms abnormally, the yellow and red flashes alternately. And an alarm sounded.

The industrial panel computer used in the PLC control cabinet provides users with powerful data management functions. Provide users with daily report, database browsing, and control data trend browsing functions. Users can easily check the system control data and equipment operation status at any time.

The industrial panel computer used in the PLC control cabinet has the function of automatically turning on and off, without personnel on duty.

The PLC control cabinet has two RS485 communication interfaces and one RJ45 TCP/IP interface. In a large-scale control system, multiple units can be connected through RS485 interface and industrial field bus protocol or through RJ45 interface and industrial Ethernet TCP/IP protocol. The PLC control cabinet is combined into a network distributed control system (DCS).

The PLC control cabinet is made of carbon steel, the thickness of the cabinet body is 1.5mm, and the thickness of the front and rear door panels is 2mm. The surface of the cabinet body is treated with anti-oxidation spray, and the protection level is IP56. Cabinet size: 2000X900X700 (height X width X thickness) can be made according to different needs of customers.

Performance characteristics

1. The frequency conversion governor is used to inspect the water pump, the starting current is small, the pump speed is low, and the mechanical impact on the water pump is small; thus prolonging the service life of the fire pump; especially for high-power water pumps, its significance is greater.

2. The frequency conversion inspection drive power is small, and the operation is efficient and energy-saving. Its power is about 1.35% of the industrial frequency inspection power, which greatly saves power resources.

3. The fire inspection cabinet can conduct automatic inspections according to the set intervals without manual operation. It is equipped with a variety of signal-by-message interfaces, which can realize remote fire protection monitoring, and understand the situation of fire protection and water pump units at any time, which is convenient for management.

4. The Chinese large LCD touch screen is used as the man-machine interface, which is easy to operate, simple and intuitive.

5. The CPU adopts Siemens PLC, which has stable performance, safety and reliability.

6. With fault alarm, power-off flash memory function, fault storage and record function, it can store 8000 fault records, which is convenient for maintenance personnel to repair and analyze the fault. 7. During the inspection process, if there is a fire signal, immediately exit the inspection, and immediately start the fire hydrant and sprinkler pump.

8. The fire exit inspection device has a complete interface function, which can be connected to the company's monitoring center or the computer of the public security fire department. It can monitor and monitor the equipment in real time around the clock, realize computer remote monitoring and comprehensive network center management, thereby further strengthening Security Monitoring.

9. The wiring of the fire return inspection cabinet is convenient, and it can be used in conjunction with any control cabinet produced by the switch factory.

Scope of application

It can be widely used in industrial and agricultural production and various types of building water supply, drainage, fire-fighting sprinkler pipe network pressurization and HVAC cold and hot water circulation and other occasions for automatic control.