GFD212A 3BHE020356R0101 3BHE020357P201 Isolation Transformer

GFD212A 3BHE020356R0101 3BHE020357P201 Isolation Transformer

GFD212A 3BHE020356R0101 3BHE020357P201 is one of the most efficient ways, but most companies have expensive PLC development software packages, and the way is not easy to field debugging, mainly used for medium and high-grade PLC system hardware configuration and software programming. PLC control system design, including hardware design and software design. Hardware design is a vital part of the PLC control system, which is related to the reliability, safety and stability of the PLC control system operation. It mainly includes two parts: input and output circuits.

GFD212A 3BHE020356R0101 3BHE020357P201 Input circuit design of the control system. PLC power supply is generally AC85-240V, adapted to the wide range of power supply, but in order to anti-interference, power purification components should be added (such as power filters, 1:1 isolation transformer, etc.); isolation transformer can also be used. Dual isolation technology can be used, that is, the transformer’s primary and secondary coil shielding layer and the primary electrical neutral point connected to the earth, the secondary coil shielding layer connected to the ground of the PLC input circuit, in order to reduce the high and low-frequency pulse interference.

GFD212A 3BHE020356R0101 3BHE020357P201 input circuit power supply should generally be used DC 24V, at the same time when the load should pay attention to the capacity, and make good short-circuit-proof measures, which is vital to the system power supply safety and PLC safety, because the power supply overload or short-circuit will affect the operation of the PLC, the general selection of power supply capacity for the input circuit, twice the power of PLC input circuit. Generally, the capacity of the selected power supply is twice the power of the input circuit, and the power supply branch of the PLC input circuit is equipped with suitable fuses to prevent short circuit.