1. The air compressor input device is an important condition to ensure the reliable operation of the PLC. It can avoid the accidental voltage shock hazard. The grounding wire is connected with the grounding end of the air compressor. The basic unit is grounded. If the expansion unit is to be used, it will be connected. The location should be connected to the grounding point of the basic unit. In order to control the loading of the power supply and the interference of the input and output terminals, a dedicated ground wire should be connected to the programmable controller. The grounding point should be separated from the grounding point of the power equipment. If this requirement is not met, it must be grounded with other air compressors. It is forbidden to be grounded in series with other equipment. The grounding point should be as close as possible to the PLC.
2. The 24V terminal on the air compressor PLC can supply current to the external sensor. When the 24 terminal is used as the sensor power supply, the COM terminal is the DC 24V ground. If the expansion crew is used, the basic unit and the extended unit 24V end should be linked. In addition, any external power supply cannot be connected to this terminal. If an overload occurs, the voltage will drop automatically. This input does not work for the programmable controller.
3. The number of input points of each type of PLC of the air compressor is specified. For each unused input point, no power is consumed. Therefore, in this case, the 24V power supply terminal of the air compressor supplies current to the outside. The capacity can be increased. The vacant terminal of the FX series PLC can not be used under any circumstances. The PLC generally accepts the switch signal input from the stroke switch and the limit switch. The input line terminal is the port of the PLC and the external sensor load conversion signal. Refers to the wiring of the external sensor and input port.
Concerned about surprises
Tag: Air compressor Input point Stroke switch Switch quantity Device input
Previous: What is the reason why the bright brass plating is not plated? Next: Reasons for the roughness of bright acid copper plating
AC Motor Ball Style Ceiling Fan Light
Propeller Ceiling Fan,Low Profile Ceiling Fan With Light,Patio Fan,Kids Ceiling Fans
JIANGMEN ESCLIGHTING TECHNOLOGY LIMITED , https://www.esclightingfan.com