1, cleaning pipes and solenoid valves require high cleanliness of the medium, and there can be no particulate impurities.
2. The inlet and outlet are correct, and the medium flow direction should be consistent with the arrow direction of the valve body.
3. Generally, it is installed horizontally, and the coil is vertically upward. It can also be installed vertically or at any angle. Please refer to the instruction manual.
4.AC220 power supply wiring is connected with solenoid coil lead or junction box regardless of positive and negative poles, and grounded if necessary.
5. For the solenoid valve that needs to work continuously, a bypass can be added at the position of the solenoid valve to facilitate maintenance and replacement.
6, after installation and use, can do regular inspection, to ensure its normal work.
Second, the wiring method
1. Replace the three screws fixing the control panel with M4x? 35 hexagonal wire column, fix the solenoid valve control board on the hexagonal wire column, and pad insulating paper between the two boards.
2. The male * * incoming line of the solenoid valve control panel is led out from the upper end point B of the lower motor control panel (point B is less connected), and the main valve output line and the auxiliary valve output line are led out from their corresponding terminals and then enter the explosion-proof junction box (at this time, the connection between the junction box and the power box should be changed from four cores to five cores). A zero line was encountered in the explosion-proof junction box, and the three lines entered the solenoid valve together.
3. The auxiliary valve control line (EM2) of the solenoid valve is connected TO the TO terminal on the wiring board (or the MT terminal on the motor control board). The main valve control line (EMl) is connected to the OA terminal on the wiring board (at this time, one of the lines between the power box and the wiring board, namely 15v group, 12V group and 10mt group, will be changed from the original two-core line to three-core line), and both ends of the main and auxiliary valve control lines are connected to the 10mt group of the motor control board. -"the end.
4. Judge the main valve and the auxiliary valve of the solenoid valve (of the three lines drawn by the solenoid valve, the double-color line is the auxiliary valve line, the brown line is the main valve line, and the blue line is generally the zero line).
Extended data
First, the working principle of solenoid valve
1. There is a closed cavity in the solenoid valve with through holes at different positions. Each hole is connected with a different oil pipe. There is a piston in the middle of the cavity and two electromagnets on both sides. The valve body will be attracted to the energized side of the solenoid.
2. By controlling the movement of the valve body to open or close different oil drain holes, and the oil inlet hole is always open, hydraulic oil will enter different oil drain pipes, and then the piston of the oil cylinder will be driven by oil pressure, and then the piston rod will be driven, and the piston rod will drive the mechanical device. In this way, the mechanical movement is controlled by controlling the on-off of the electromagnet.
Second, the common types
1, two-position two-way valve
2. Hot water/steam valve
3. Two-position three-way valve
4, 2-position four-way valve
5. Two-position five-way valve
6. Intrinsically safe explosion-proof solenoid valve
7, low power solenoid valve
8. Manually reset the solenoid valve
9, precision micro valve
10, valve position indicator
References:
Baidu encyclopedia-electromagnetism valve