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ABB REM615 HCMJAEADABC2BNN11E electric actuators generally provide five signal points: one analogue signal for feedback of the position signal of the electric actuator; two switching contact input signals for feedback of the two limit alarm signals of the electric actuator; in addition, there are two forward and reverse coils drive interfaces for connecting to the power devices, such as solid state relays SCR and so on, and the waiter or PAT module can then drive the solid state relays or SCR through the switching output signals, thus driving the forward or reverse rotation. The PAT module can be used for switching output signals.

ABB REM615 HCMJAEADABC2BNN11E Electric actuators are generally used in harsh environments, and in order to facilitate the implementation of the project in the industrial field, the valve position feedback signal line, the power supply line and the switching output signal line are concentrated in the same cable, and there is serious crosstalk between the signal lines, so the hardware of the PAT module has to be strictly designed in terms of isolation, anti-interference and electromagnetic compatibility.

ABB REM615 HCMJAEADABC2BNN11E module design adopts optoelectronic isolation technology and electromagnetic isolation technology, analogue processing circuits are isolated separately, and the switching part is isolated uniformly. Switching output part and then through the solid state relay to achieve the isolation of weak and strong power, effectively overcoming the interference between different signals; at the same time and then in the analogue processing circuits, switching circuits to do further signal conditioning and protection measures, at this time, the PAT module has a very strong anti-jamming ability and good electromagnetic compatibility, stability and reliability has been significantly improved.