How do I release the alarm of the overvoltage protection (OVP) in PAT-T series?

If you cannot release the alarm of OVP, you may have set the output to on at power-on in the CONFIG setting.
With this setting, the alarm condition may persist at every power-on.
To release this alarm, you need to initialize PAT-T series to the factory default settings.
To reset to the factory default settings, while holding down the SHIFT key, turn the POWER switch on.
Note: All settings will be reset by the initialization.