To enter the power-on state of a CNC vertical lathe, you usually need to follow the following steps:

1. Check the power supply and main power switch: Make sure the power cord of the CNC vertical lathe is connected to the power socket, and check whether the main power switch is turned off.

2. Turn on the main power switch: For CNC vertical lathes, turn the main power switch to the on position, usually by flipping the switch upward or to the right.

3. Check the auxiliary power supply: Some CNC vertical lathes may have an auxiliary power switch, such as the power switch on the control cabinet. Make sure the auxiliary power supply is also turned on.

4. Start the CNC system: Press the power button or start button on the CNC vertical lathe CNC system panel and wait for the CNC system to start. You may need to enter your username and password to log in.

5. Initialize the system: After the CNC vertical lathe CNC system is started, initialize the system, usually by pressing the corresponding initialization button or following the instructions in the system menu.

6. Check the alarm information: During the system initialization process of the CNC vertical lathe, pay attention to whether the CNC system displays any alarm information or abnormal status, and handle it as needed.

7. Ready: When the CNC vertical lathe CNC system does not display abnormal status and has completed initialization, the CNC vertical lathe is in the power-on state and can perform subsequent operations, such as loading processing programs, adjusting parameters, etc.

8. Pay attention to safety: When operating a CNC vertical lathe, be sure to comply with relevant safety operating procedures to ensure personnel safety and equipment safety.

The above are the basic steps for a general CNC vertical lathe to enter the power-on state. The specific operations may vary depending on different CNC systems and equipment. It is recommended to consult the equipment's operation manual for detailed guidance before operation.