2 fan control with E67
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TECH Regular
Joined: Jan 2004
Posts: 426
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From: Austin, TX
2 fan control with E67 Can the 2 outputs from the current E67 controller supplied with the GMPP harness, be programmed to control 2 different fans at 2 different setpoints?
The outputs are both tied together at the coil of the fan relay of the fuse/relay center. I would like to separate the 2 outputs to fire 2 different relays at different temperature setpoints in lead/lag arrangement for my dual fans. There is plenty of space in the fuse/relay center to add in another relay, and they have already supplied a hot bus bar to supply the power to the additional relay. I have been asking this question for quite some time, and while I get lots of suggestions as how to control my fans, I have yet to get an answer to this one question.
Is there a different programmable setpoint for both of these outputs? If not, why have the 2 different outputs? Several people have suggested that one output was a discrete, and the other was a PWM, but that does not make sense, as to why they would tie both of them to the coil of the relay. my assumption is that both of them are discrete, or they would not be tied to the relay coil.
Regards, John McGraw
The outputs are both tied together at the coil of the fan relay of the fuse/relay center. I would like to separate the 2 outputs to fire 2 different relays at different temperature setpoints in lead/lag arrangement for my dual fans. There is plenty of space in the fuse/relay center to add in another relay, and they have already supplied a hot bus bar to supply the power to the additional relay. I have been asking this question for quite some time, and while I get lots of suggestions as how to control my fans, I have yet to get an answer to this one question.
Is there a different programmable setpoint for both of these outputs? If not, why have the 2 different outputs? Several people have suggested that one output was a discrete, and the other was a PWM, but that does not make sense, as to why they would tie both of them to the coil of the relay. my assumption is that both of them are discrete, or they would not be tied to the relay coil.
Regards, John McGraw
John,
I don't have a direct answer, but by far, the slickest option is to do PWM with a C6 fan controller. There is a huge thread on lateral-g about this. The discrete vs. PWM output is handled in the tune.
Andrew
I don't have a direct answer, but by far, the slickest option is to do PWM with a C6 fan controller. There is a huge thread on lateral-g about this. The discrete vs. PWM output is handled in the tune.
Andrew
