Common Faults And Maintenance Methods Of Electric Actuators
Apr 15, 2022| One. indicator light failure
1. Fault phenomenon:
After the electric actuator is powered on, it is found that the power indicator light is not on, the servo release board has no feedback, and the signal does not act. Fault diagnosis and maintenance process:
Because the power indicator is not on, first check whether the fuse is open. After checking that the fuse is in good condition and comprehensive fault phenomena, it can be inferred that the fault may occur in the power supply part of the servo release board. Then check the power indicator and use a multimeter to detect the indicator. Open circuit, replace the indicator light and troubleshoot.
Conclusion: The open circuit of the power indicator light will cause the entire servo board to not work.
2. Fault phenomenon: (found during debugging)
After the actuator of the electric actuator is powered on, it can be turned on by the signal, but it cannot be turned off. Fault diagnosis and maintenance process:
First check the feedback circuit carefully to confirm that the feedback signal is not faulty. When the ON signal is given, the ON indicator light is on, indicating that the ON is normal. The multimeter detects that the off indicator light is open, and the fault is eliminated after replacing it.
Conclusion: The thyristor does not act when the off and on indicators are off (open circuit).