Common faults and treatment methods of electric valves

Fault 1: The acter does not move, but the control module power supply and signal light are on.
processing method: check whether the supply voltage is correct, whether the motor is disconnected, whether the ten-core plug from the end to the end of each line terminal is broken, the motor, the powerproon, capacitor plug is good, and the control module is good by contrast interchange method.
fault two: actostore does not move, the power lamp is on and the signal light is not on.
: check whether the input signal polarity is correct, and use the comparison interchange method to determine whether the control module is good.
: Improper adjustment of the adjustment system parameters causes the executor to oscillate frequently.
: the parameters of the regulator are not suitable, which will cause the system to produce different degrees of oscillation.
for single-loop adjustment systems, system oscillations can be possible with too small a proportional band, too short integration time, and too large a split time and a large score gain.
can make reasonable selection of these parameters through the method of system adjustment, so that the circuit can maintain a stable speed.
four: acto-motor heating rapid, shock crawling, a short period of time to stop the action.
processing method: USE AC 2V voltage file to measure whether the input of the control module AC interference, check whether the signal line is isolated from the power cord, the power meter and the power meter wiring is good, the feedback component movement is normal.
fault five: acttor action is step, crawling phenomenon, slow movement.
: Check that the signal from the operator is moving at the correct time.
: The amplifier position feedback signal is too large or too small.
: Check that the "zero" and "travel" capacitors are adjusted correctly, and replace the control module to determine.
fault seven: after the signal is added, the executor is fully on or off, and the limit switch is non-stop.
: Check that the function selection switch of the control module is in the correct position, that the "zero" and "travel" capacitors are adjusted correctly, and replace the control module to determine.
fault eight: executor oscillation, tweeting.
treatment method: mainly because the sensitivity is too high, the non-sensitive area is too small, too sensitive, resulting in the small circuit of the executor can not be stable and produce oscillations, counterclockwise fine-tuning sensitivity capacitor reduces sensitivity;
: Actuator action is not normal, but the motor does not stop after the limit switch action.
: check the limit switch, limit switch wiring is faulty;
10: The executor belt is broken.
: Check that the internal drive portion of the executor is damaged and stuck, that the "zero" and "travel" capacitors are adjusted correctly, and that the limit switch is correct.