The start and stop operation of the permanent magnet variable frequency air compressor is a key link to ensure the safe and stable operation of the equipment. The following are some specific precautions:

Preparation before startup

1.Check the power supply: Before starting the machine, check whether the power switch is reset to ensure that the three-phase power supply is normal.

2.Check the oil temperature: Make sure the oil temperature is not lower than +2 degrees Celsius. If the temperature is too low, use a heating device to heat the oil and gas barrel and the main engine.

3.Check the oil level: Check the oil level is in the normal position and make sure the oil level is within the normal range.

4.Drain condensed water: Open the drain valve at the bottom of the oil and gas barrel to drain the condensed water and dirt accumulated at the bottom of the lubricant.

5.Check the cooling system: For water-cooled units, check the inlet and outlet to ensure that they are connected correctly and securely, and that the cooling water is open.

Boot steps

1.Start the refrigerated dryer: first turn on the refrigerated dryer, then turn on the permanent magnet variable frequency screw air compressor.

2.Start the air compressor: Press the start button on the control panel, and the air compressor will start running according to the set mode. Observe whether the various parameters on the display panel are normal, and whether there are any abnormal sounds or oil leaks.

3.Jog operation: The first time you start the machine, you should do a jog operation to check the operation and whether the sound is normal when the machine starts. After the machine is officially started, you should check the current and oil temperature changes. If there is a sudden change in temperature, please stop the machine immediately.

Notes during operation

1.Monitor operating data: Use the equipment’s own monitoring system to monitor operating temperature, pressure, current and other data to identify potential problems in a timely manner.

2.Avoid frequent starting: Do not start the machine frequently. If necessary, add appropriate amount of coolant to the machine.

Shutdown steps

1.Shutdown operation: Press the stop button on the control panel. The compressor will stop after a period of unloading. It is normal if it does not stop immediately.

2.Shut down the refrigerated dryer: When shutting down, the refrigerated dryer should be stopped first, and then the permanent magnet variable frequency screw air compressor.

3.Cut off the power supply: When the permanent magnet variable frequency screw air compressor is not in use, the power supply should be cut off and the compressor air supply valve should be closed.

Special considerations

1.Prevent starting with load: It is strictly forbidden to start the permanent magnet variable frequency screw air compressor with load, otherwise the electronic components of the machine will be damaged due to excessive current during startup.

2.Emergency stop: If the permanent magnet variable frequency screw air compressor has special abnormal conditions, press the red emergency stop button. If you need to restart it, you have to wait for about 2 minutes before you can restart it.

By following these startup and shutdown precautions, you can ensure the safe and stable operation of the permanent magnet variable frequency air compressor and extend the service life of the equipment.