Moosetracks
n00b
- Joined
- Feb 3, 2018
- Messages
- 5
So I am modifying a system to use a lower rpm fan than it came with.
This is the original fan....
http://partner.delta-corp.com/Products/FANUploads/Specification/QFR1212GHE-SP01(REV01).pdf
The wiring says...
Red = +
Black = -
Blue = STO
Yellow = PWM
The blue wire looks like a RPM reading off the fan.
My thought was to use
https://www.amazon.com/DROK-Frequen...17714814&sr=8-1&keywords=pwm+signal+generator
And set it to the frequency I want the system to think its running? I thought I could get this to work, but it doesn't seem to recognize the PWM output from the DROK as a rpm.
I have +12 going to the vin+, 0V going to the vin-, and the PWM out going to where the blue wire of the fan was.
Do you guys have any advice on how to achieve what I need. I see a lot of references to using a 555 timer to create this, but I thought I could use the PWM siginal generator to have a visual representation of the frequency.
Anyhow I am open to any suggestions / info..
Thanks!
This is the original fan....
http://partner.delta-corp.com/Products/FANUploads/Specification/QFR1212GHE-SP01(REV01).pdf
The wiring says...
Red = +
Black = -
Blue = STO
Yellow = PWM
The blue wire looks like a RPM reading off the fan.
My thought was to use
https://www.amazon.com/DROK-Frequen...17714814&sr=8-1&keywords=pwm+signal+generator
And set it to the frequency I want the system to think its running? I thought I could get this to work, but it doesn't seem to recognize the PWM output from the DROK as a rpm.
I have +12 going to the vin+, 0V going to the vin-, and the PWM out going to where the blue wire of the fan was.
Do you guys have any advice on how to achieve what I need. I see a lot of references to using a 555 timer to create this, but I thought I could use the PWM siginal generator to have a visual representation of the frequency.
Anyhow I am open to any suggestions / info..
Thanks!
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