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The application of Elinker barrier terminal block on transducer
Published：2014-03-26 10:08:56 Views：
Barrier terminal blocks can achieve secure, reliable and efficient connections, particularly in high-current, mostly application in high voltage environment, the following is isolation of transmitter of its application.
With the development of science and technology, barrier terminal block design becomes more compact, the compact is designed to take up less space. Of course, users should be allowed to install, intensive installation is a cooling problem, you must lower the power consumption, so internal power consumption values in selection should be noted.
Now appearing on the market, many CPU-core of the separation fence to terminals, with field programmable and communication capabilities, with a high degree of flexibility for customers can reduce the amount of inventory, cut the backlog of capital, with CPU as core areas of isolated terminal will become the mainstream.
Transmitter isolation there is another way, sensors and transmitters as a whole, but must be placed in designated locations. this General barrier terminal block placed in the central control room cabinets, isolator cabinets barrier terminals for live transmission and distribution power, which to be decided according to the PLC interface to use.
Barrier terminal block instrument commissioning may occur and PLC interface does not match the sending device to a four-wire transmitter 4-20mA output, and the receiving port 4-20mA interface is a two-wire loop power supply if direct connection will create a conflict of power. Solution is the use of isolators barrier terminal blocks will 4~20mA receive and isolated, inside the isolated Terminal matches the output part to install a dedicated circuit for two-wire loop power supply interface and PLC.