What is the reason why the electronic universal testing machine does not work when it rises or falls?
What is the reason why the electronic universal testing machine does not work when it rises or falls?
The electronic universal testing machine does not work when it rises or falls, that is, when you press up or down, the meter shows up or down, but the reason why the machine does not move is as follows: 1. Reason analysis: check the limit: the left front of the electronic universal testing machine Silver-white limit rod. Check to see if the limit rod is stuck. Or whether the limit stop piece on the beam touches the limit stop. Solution: Remove the limit stop by hand, or move the limit rod up and down to solve the jamming phenomenon. 2. Reason analysis: Open the back sheet metal of the electronic universal testing machine and observe that the old equipment before the motor driver uses a DC servo motor. The driver is a black upper and lower two-layer board with a row of indicator lights. There is only one yellow indicator after power on The light is on. If this indicator flashes or other lights are on, it means that the drive is damaged. When it rises and falls normally, the green light next to the yellow light is on. If other lights are on, it means that the drive is damaged. Now using stepper motors and AC servo motors, if the AC servo drive is damaged, the code display on the drive is displayed. Solution: Send the problematic drive back to the company for repair, or buy a new drive. When disassembling, please remember the order in which the drive is connected, so that the order of the installation cord cannot be reversed after repair. 3. Reason analysis: check whether the red mushroom head emergency stop button on the right side of the electronic universal testing machine has been pressed. (After pressing, the motor is powered off, but the meter displays normally). Solution: Press the direction of the arrow marked on the emergency stop button to rotate it out. The above is the reason why the electronic universal testing machine rises and falls does not work, and I hope it will be helpful to everyone. In addition, we should also pay attention to the daily maintenance of the testing machine, and pay attention to waterproof and moisture-proof. The middle beam and workbench should be frequently coated with anti-rust oil to prevent rust.
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