Part fault handling of hydraulic control system of hydraulic cutting machine

First, the actuator does not act after the control signal of the hydraulic cutting machine is input into the system

1. Check whether the oil pressure of the hydraulic cutting machine system is normal, and judge the working condition of the hydraulic pump and relief valve.

2. Check whether the actuator is locked.

3. Check whether the input and output electrical signals of the servo amplifier are normal and determine its working condition.

4. Check whether the electrical signal of the electro-hydraulic servo valve has input and changes, and whether the hydraulic output is normal to determine whether the electro-hydraulic servo valve is normal. Servo valve failure should generally be handled by the manufacturer

Second, after the control signal of the hydraulic cutting machine is input into the system, the executive element moves in a certain direction to the end

1. Check whether the sensor is connected to the system.

2. Check whether the output signal of the sensor and the servo amplifier are mistakenly connected to a positive feedback.

3. Check the possible internal feedback failure of the servo valve of the hydraulic cutting machine.