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Mining Explosion-Proof And Intrinsically Safe Programmable Control Box
  • Mining Explosion-Proof And Intrinsically Safe Programmable Control Box
Mining Explosion-Proof And Intrinsically Safe Programmable Control Box

Mining Explosion-Proof And Intrinsically Safe Programmable Control Box

Mainly used for systems of electrical equipment under heavy load in the coal mine with methane and coal dust and some explosive hazard places to control, and switch with intrinsically safe explosion-proof type. It is especially applicable to automatic intelligent control of belt conveyor transmission, hoist or winch transmission control and protection system, the main pump room centralized control system with several pumps, the local ventilation system, and other centralized control systems.


Product Details

The control box is equipped with power filter, PLC, switch power supply, intrinsically safe power supply, power supply, relay and touch screen. There are input/output interfaces of multi-channel digital switch signals and analog signals, can be configured a variety of different communication interfaces, can provide 2 to 8 ways of intrinsically safe power supply for the instrument or the sensor to use, can meet the needs of the system to the maximum extend.


There are Siemens S7-200 or S7-300PLC inside the control box built as the core programmable controller, with programmable features. The control logic programming, analog acquisition, data processing, communication and other functions are accomplished through ladder diagram, the statement table, function graph and another programming language, and can

collect the operation data signal and sensor signals of every controlled equipment on the site. Through the PLC program control, you can intelligent centralized control to variable electric drive systems underground; through the configuration screen of the touching display screen, can intuitively, conveniently and clearly display the real-time working status, monitoring data and

process parameters of each node in the control system. The system has a remote networking function, can upload a variety of operating status of the control system to the dispatch room and other host computers on the ground to monitor.


Input voltage: AC1140V, AC660V, AC220V, AC1270V,

75%Ue-110%Ue

Intrinsically safe maximum open circuit voltage: DC24.2V;

DC18V; DC12.2V

Intrinsically safe maximum output current: 0.5A, 1A, 1.8A

Working system: continuous duty