Chief Delphi - Fans from the PCM?

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- - Fans from the PCM? (http://www.chiefdelphi.com/forums/showthread.php?t=134422)

Re: Fans from the PCM?

Quote:

Originally Posted by Sohaib (Post 1443337)

Anyone find out if it is legal to run fans off of the PCM, or VRM?

I'm just looking for a legal, non-motor controller way to power a fan.

Multiple Q&A's on the topic are waiting for responses from the GDC.

Re: Fans from the PCM?

Quote:

Originally Posted by rich2202 (Post 1443166)

Question submitted on directly connecting a fan to the PDB.

FIRST response:

Quote:

Thank you for your reasoned and thorough question! R37 does not include motors, but does include power regulating devices, which, per an update to R41 in Team Update 2015-02-17, are required for all motors and actuators, except for fans permitted per Table 4-1 but not already part of a COTS computing device (admittedly always the intent and mostly the understanding, but not actually stated explicitly). R37 will also be updated to include a row specifically for fans permitted per Table 4-1 but not already part of a COTS computing device (with a breaker limit of up to 40A and no legal limit on the number of fans on that breaker). Long story short, given the revisions described above, yes, there is no prohibition on connecting a legal fan directly to the PDP.

Re: Fans from the PCM?

Better late than never, but we already put it on a Spike Relay and it is only on when the robot is enabled. It is a 120mm fan but is the exact one supplied by AndyMark First Choice.