PM904F 3BDH001002R0001 Optical Potentiometer

PM904F 3BDH001002R0001 Optical Potentiometer

PM904F 3BDH001002R0001 should only be laid in the same cable trench. High voltage, high current connection and disconnection of strong electrical interference may be generated in the PLC input line to produce a very strong induced voltage and induced current, enough to make the PLC input photoelectric pots and pans in the light-emitting diode light-emitting, so that photoelectric coupler anti-interference failure, resulting in PLC malfunction. Such as a hydropower station in the PLC in the station without generator operation is normal, generator start-up operation often occurs after the malfunction, can be observed in the absence of input signals when the PLC input light-emitting diode will sometimes flash.

PM904F 3BDH001002R0001 interference signals in addition to the PLC inputs through the PLC invasion of the PLC, but also through the PLC power supply invasion of the PLC. Unlike the general industrial environment, the relay control system in the power station relay control system and the actuator (eg, circuit breakers, contactors and solenoid valves, etc.) is used in the DC 220V power supply, the design of PLC output circuit should take this feature into full account. This feature should be fully considered when designing the output circuit of the PLC.