How to deal with the emergency stop of permanent magnet screw air compressor

The processing steps after the emergency stop of the permanent magnet screw air compressor are as follows:

1. stop immediately and cut off the power
   after pressing the emergency stop button, the equipment will be forced to stop operation. At this time, the main power supply should be cut off immediately to prevent accidental restart of the equipment or further damage to the electrical system. Operators should wear insulating gloves and use special tools to disconnect the power switch to ensure safe operation.

2. Troubleshoot Emergency Stop Trigger Causes

   • check emergency stop button: Confirm whether the button is triggered due to false touch, short circuit or internal fault. If the button is stuck or damaged, replace it with a new button.
   • Check the electrical system: Focus on the contactor, motor bearing, line connection, etc. Contactor contact ablation or motor bearing seizure may cause overload protection action, resulting in an emergency stop.
   • Check mechanical components: Observe whether the screw, belt and other transmission parts are stuck or abnormally worn to avoid overload of equipment caused by mechanical failure.
   • Check sensor: Faults such as temperature sensors and pressure sensors may falsely report abnormal signals and trigger the protection mechanism. It is necessary to check whether the output value of the sensor is within the normal range with a multimeter.

3. Targeted repair or replacement of parts

   • if the emergency stop button is damaged, replace the button of the same model and test whether its reset function is normal.
   • If the contact of the contactor is ablated, it is necessary to polish the contact or replace the contactor to ensure reliable suction.
   • If the motor bearing is damaged, remove the motor and replace the bearing, and check whether the insulation resistance of the motor meets the standard.
   • If the sensor fails, replace the sensor and recalibrate the parameters to ensure accurate signal transmission.

4. Test before resuming operation

   • no-load test: Start the equipment with the load cut off, observe whether the operating parameters (such as voltage, current, temperature, pressure) are stable, and confirm that there is no abnormal alarm.
   • Load Test: Gradually increase the load, monitor the operating status of the equipment, and ensure stable operation under rated operating conditions.
   • Emergency stop test: Press the emergency stop button again to verify that the equipment can stop running quickly and no other fault codes appear.

5. Preventive measures and daily maintenance

   • regular maintenance: Replace the oil filter and air filter according to the schedule recommended by the manufacturer, and clean the cooler to prevent impurities from entering the system and causing component wear.
   • Check electrical connections: Tighten the wiring terminal regularly and check whether the insulation layer of the circuit is damaged to avoid failure caused by poor contact.
   • Monitoring operation parameters: Pay attention to key parameters such as temperature and pressure in real time through the display screen or remote monitoring system to find potential problems in time.
   • Training of operators ensure that the operator is familiar with the equipment operation procedures and master the correct use method and reset process of the emergency stop button.