Nanodlp v2.2/v3.0 light curing circuit board, connection method of mechanical switch/photoelectric switch/proximity switch and system state level setting

Nanodlp v2.2 limit switch pin diagram S signal, G ground wire, V 5V power supply

Nanodlp v3.0 limit switch pin diagram S signal, G ground wire, V 5V power supply

The principle of ordinary 3d printing accessories photoelectric switch:

So the corresponding system status level setting should be low level:

The principle of the mechanical switch on the contrary to the ordinary 3d printing accessories:

The initial non-action state is connected to Vcc in a high-level state, and when the action contacts the NO point, it becomes grounded and becomes a low-level state.

So the corresponding system status level setting should be high level:

For proximity switches lj12a3-4-z/ex or LJ8A3-4-Z/BX normally open switches, additional auxiliary circuits need to be added to connect to Nanodlp v2.2/v3.0 circuit boards

After connecting to the following auxiliary circuit, the switch is not enabled and defaults to low-level output. Once it is close to the plane, the switch is enabled, and the output terminal is 5v divided and output, and it is in a high-level state.So the use and setting methods are the same as the photoelectric switches