Query about cooling fan connection to RepRap 1.4

Hello folks

I would like to know cooling fun connection for Robo3D and also control of it with MatterControl.
My Robo3D was based on 1st generation Kickstarter version but now it has similar as R1 feature.
Head has been replaced with E3DV6. Controller firmware was burned with Marlin.

Reprap circuit does not show cooling fan wiring scheme on circuit.
How cooling fan wiring are connected for this control ?
It may required 12V controlled output.

Is there any good document ?

regards

 

Hello Mark-san
Thanks for clear answer on my question.
So I can confirm wiring next time at my labo.(This weekend)
Can it be supported by Mattercontrol UI for PLA detail setting ?

regards

 

Thanks I shall survety at there.
Shigemal