Fault 1: The electric actuator does not operate, but the power and signal lights of the control module are on, and there is no obvious fault. Treatment method: Check whether the power supply voltage is correct; whether the motor is disconnected; whether the ten-core plug is disconnected from the end to the end of each line.
Fault 2: The actuator does not move, and the power light is on and the signal light is off. Treatment method: Check whether the polarity of the input signal is correct; use the comparison and interchange method to judge whether the control module is good.
Fault three: Improper adjustment of system parameters leads to frequent oscillation of the actuator. Treatment method: The parameter setting of the regulator is inappropriate, which will cause the system to produce different degrees of oscillation. According to the manufacturer's instructions or actual use experience, the parameters are revised again.
Fault 4: The actuator motor generates heat quickly, oscillates and crawls, and stops acting in a short time. Treatment method: use AC 2V voltage to test whether the input end of the control module is AC interference; check whether the signal line is isolated from the power line; whether the potentiometer and potentiometer wiring are good; whether the feedback component operates normally.
Fault five: The actuator position feedback signal is too large or too small. Treatment method: Check whether the adjustment of the "zero position" and "stroke" potentiometers is correct; replace the control module to judge.
Fault six: After the signal is applied, the actuator is fully open or fully closed, and the limit switch is also non-stop. Treatment method: check whether the function selection switch of the control module is in the correct position; whether the adjustment of the "zero position" and "stroke" potentiometers is correct; replace the control module to judge.
Fault 7: The actuator oscillates and chirps. Treatment method: mainly because the sensitivity is adjusted too high, the insensitive area is too small, and it is too sensitive, which causes the small loop of the actuator to be unstable and oscillate. The sensitivity can be adjusted counterclockwise to reduce the sensitivity; the fluid pressure changes too much, the actuator thrust Insufficient; the choice of regulating valve is large, and the valve often works in small opening.
Fault eight: The actuator does not act normally, but the motor does not stop after the limit switch acts. Treatment method: check whether the limit switch and the limit switch wiring are faulty; replace the control module to judge.