The shape of the isolator is rail-mounted and the wiring is wiring. This product is called an isolation terminal and is suitable for installation in a cabinet.
With the development of science and technology, the design of isolated terminals is becoming smaller and smaller, and the purpose of miniaturization is to occupy less space. Of course, users should be allowed to install intensively. If intensive installations have thermal problems, internal power consumption must be reduced. Therefore, the value of the internal power consumption should also be taken into consideration.
Lianjie experts believe that there are many isolated CPU-based terminals on the market, which have on-site programmable and communication functions and high flexibility, which can reduce the number of inventories and reduce the capital backlog for customers. The CPU-based isolation terminal will become the mainstream in this field.
In addition, there is another way to isolate the transmitter. The sensor and transmitter are integrated and must be placed at the designated site. In this case, the isolating terminals are generally placed in the central control room cabinet. The isolated terminals in the cabinet are used to distribute power to the field transmitters. Which one to use depends on the status of the PLC interface.
On-site commissioning may cause the mismatch between the instrument and the PLC interface. The sending device is a 4-wire transmitter that outputs 4 to 20 mA, and the 4 to 20 mA interface on the receiving side is a two-wire loop power supply. If the direct connection is used, power conflicts will occur. The solution is to use isolation terminals to receive and isolate the 4 to 20 mA of the site. A dedicated circuit is installed in the output section of the isolation terminal to match the two-wire loop power supply interface of the PLC.
Shanghai Lian Jie Electric has decades of experience in terminal manufacturing. The engineers of L'Esprit said that when selecting isolated terminals, besides determining functions and paying attention to the front and rear interfaces, there are accuracy, power consumption, noise, and dielectric strength. Many parameters such as the bus communication function require careful selection by the user.
With the development of science and technology, the design of isolated terminals is becoming smaller and smaller, and the purpose of miniaturization is to occupy less space. Of course, users should be allowed to install intensively. If intensive installations have thermal problems, internal power consumption must be reduced. Therefore, the value of the internal power consumption should also be taken into consideration.
Lianjie experts believe that there are many isolated CPU-based terminals on the market, which have on-site programmable and communication functions and high flexibility, which can reduce the number of inventories and reduce the capital backlog for customers. The CPU-based isolation terminal will become the mainstream in this field.
In addition, there is another way to isolate the transmitter. The sensor and transmitter are integrated and must be placed at the designated site. In this case, the isolating terminals are generally placed in the central control room cabinet. The isolated terminals in the cabinet are used to distribute power to the field transmitters. Which one to use depends on the status of the PLC interface.
On-site commissioning may cause the mismatch between the instrument and the PLC interface. The sending device is a 4-wire transmitter that outputs 4 to 20 mA, and the 4 to 20 mA interface on the receiving side is a two-wire loop power supply. If the direct connection is used, power conflicts will occur. The solution is to use isolation terminals to receive and isolate the 4 to 20 mA of the site. A dedicated circuit is installed in the output section of the isolation terminal to match the two-wire loop power supply interface of the PLC.
Shanghai Lian Jie Electric has decades of experience in terminal manufacturing. The engineers of L'Esprit said that when selecting isolated terminals, besides determining functions and paying attention to the front and rear interfaces, there are accuracy, power consumption, noise, and dielectric strength. Many parameters such as the bus communication function require careful selection by the user.
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