Electric actuator attention note

Electric actuator considerations;

Take the integral proportional adjustment type of the MD series electric actuator as an example.
Before power-on, visual inspection and insulation inspection must be carried out. The insulation of the power circuit (arc circuit) and the signal contact to the outer casing should be measured with a 500V megohmmeter. * Not less than 20MΩ: signal input, output circuit and their power The insulation between the circuits, except for special requirements, should not be lower than l0mΩ before being energized. After power-on, check whether the transformer, motor and electronic circuit components are overheated. If there is any noise in the rotating parts, immediately find the abnormality and cut off the power supply to find out the cause. Do not easily solder components until the cause is identified. When replacing electronic components, prevent excessive temperature and damage components. When replacing the FET and the integrated circuit, be sure to ground the soldering iron or use the residual heat to solder out. When disassembling parts, components or welding leads, mark them and mark them accordingly. The output circuit of the device to be inspected should be avoided as far as possible to avoid power failure of the device under test when there is an input signal. The repaired equipment must be verified. For the dry motor, check the insulation resistance between the coil and the outer casing and the coil, measure the DC coil of the coil, clean the bearing and add the lubricating oil, check the rotor, stator coil and brake assembly; for the reducer, disassemble and clean the parts. Check the condition of the planetary gears, check the condition of the helical gears, check the meshing of the turbine worm or the screw nut, and then assemble, adjust and add long-acting 铿 grease. For the position sensor part to be visually inspected, check the coaxial connection between the potentiometer and the stroke control mechanism, check the basic condition of the potentiometer, and check the connection between the potentiometer and the amplifier board.