Power failure of CNC vertical lathe may include the following situations, which need to be analyzed and eliminated:

1. Power supply problem: Check whether the power supply of the CNC vertical lathe is normal. Possible problems include a faulty power line, faulty electrical outlet, or faulty power switch. Troubleshoot these problems by checking the power cord and replacing the outlet or switch.

2. Power board failure: CNC vertical lathes are usually equipped with a power board, which is responsible for converting the input power into various voltages and currents required by the machine tool. If the power board fails, the machine tool may not start or work properly. It is necessary to check whether the power board is damp, burned or otherwise damaged, and repair or replace it in time.

3. Control system failure: There may be a failure in the control system of the CNC vertical lathe, such as a failure in the main control board or CNC. This may cause the lathe to fail to respond to operating commands or to operate properly. It is necessary to check the connection, power supply and program settings of the control system, eliminate possible causes of failure, and repair or replace them.

4. Motor drive problem: The motion system of a CNC lathe is usually driven by a motor. If the motor driver or the motor itself fails, it may cause the lathe to fail to operate normally. It is necessary to check the status, connection and power supply of the motor driver, as well as the status and operation of the motor itself, and eliminate possible causes of the failure.

5. Wiring problems: Check whether the wiring between various components of the CNC vertical lathe is correctly connected or damaged. Possible problems include poor contact, loose or broken wiring, etc., requiring reconnection or replacement of damaged wiring components.

By carefully analyzing and eliminating these possible causes of power failure, the power supply problem of the CNC vertical lathe can be repaired in time to ensure the normal operation of the lathe. If necessary, it is recommended to seek professional technical support or maintenance services.