1. The signal valve pushed by the control box does not move. Under the condition that the positioner is installed, the pneumatically adjustable butterfly valve is equipped with a solenoid valve. The weak current of the solenoid valve affects the information output of the control box, and the valve cannot withstand the data signal and cannot work normally.
Solution: Remove the solenoid valve, remove the weak current to affect the routine operation of the machine and equipment (note: the function of the solenoid valve is to have the effect of valve power switch, and the function of the positioner is to operate the opening degree of the valve with a data signal of 4 to 20mAh, so there is no need to install the solenoid valve under the condition of equipping the positioner).
2. After the automatic switch to the manual state, it is not easy to return to the automatic state; Because the rotation range of dispersion is too large, the internal transmission gear is stuck and cannot be pulled back automatically.
Solution: When driving the aggregation and dispersion, the spindles should rotate back and forth with each other, and the internal structure should be turbocharged to disassemble and assemble, so as to easily complete the manual automatic switching (the light yellow ferrule joints around the periphery must be pulled up during manual switching).
3. The valve works normally, but the reaction has always been in a **** condition. Only based on the communication of the on-site wiring staff, everyone knows that the on-site wiring is a thick line, strong strength, inconvenient connection, and the formation of screws falling off. The wiring staff immediately tightened it with a large screw, so that the control module was topped by the screw, forming a short circuit.
Solution: Replace the basic screw type standard; It is proposed to change the connecting line to a filament.
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