If the machine been running before it has warmed up, the motor is in a protected state.

Powered off to restart. There is no material in the barrel, and the equipment will wait for a period of time to automatically load the material.

The first injection, you need to switch to manual state

The device will stop, then switch to automatic.

In automatic mode, there must be stored material in the barrel. When the barrel is full, the automatic mode can be used.
If it is not full, you need to switch to manual fill.