Control a fourth fan in PWM
-
Good morning, I'd need to control a fourth 12VDC fan in PWM...I've already used the given three pins couple for the PWM fans (two for fans and one to trigger a mosfet for a LED stripe)....is it possible? If I remap a heater PIN will its ouput ba at 12VDC? I've already tried to use a heater PIN to trigger the above entioned mosfet but it hasn't worked....In case how will I be able to acheive the result?
Thanks
Andrea -
how do you configure it in the config.g? this is possible
-
@Veti said in Control a fourth fan in PWM:
how do you configure it in the config.g? this is possible
sorry? what do you mean?
-
@the_dragonlord
what changes did you make in the config.g when you reconfigured the heater to a fan?
-
@Veti said in Control a fourth fan in PWM:
@the_dragonlord
what changes did you make in the config.g when you reconfigured the heater to a fan?
as suggested I tried
M950 P2 C"e1heat"
M307 P2 A-1 C-1 D-1Then add the following to change power output
M42 P2 Sxxxbut instead of e1Heat I used e3Heat
-
i think you need a protective circuit that is only on the e1heat and not on e3heat.
try this
M950 F2 C"e1heat" Q500 ; create fan 0 on pin fan0 and set its frequency
M106 P2 S0 H-1 ; set fan 0 value. Thermostatic control is turned off -
Is your VIN also 12V?
I'd be tempted to put the LEDs on heater port and the fans on the fan ports.
Whether you use M42 or M106 depends on if you want it to show up as a slider control in the fan listing.
-
@Veti said in Control a fourth fan in PWM:
i think you need a protective circuit that is only on the e1heat and not on e3heat.
try this
M950 F2 C"e1heat" Q500 ; create fan 0 on pin fan0 and set its frequency
M106 P2 S0 H-1 ; set fan 0 value. Thermostatic control is turned offSo then I use the S value of M106 to control the power?
-
@the_dragonlord
yes, for testing you can use the web ui
-
@the_dragonlord said in Control a fourth fan in PWM:
.I've already used the given three pins couple for the PWM fans (two for fans and one to trigger a mosfet for a LED stripe).
which heater pin did you use, and what mosfet is it. should be doable with some caveats.