Re: 2015 Compressor Fuse
 

R53 says the compressor can be controlled by a relay module
R66D allows you to put a Snap Action breaker in the relay module if powering the compressor

Not sure if that is what your are asking, but as in previous years, the compressor can be controlled by a SPIKE and gets rid of the problem described by the OP.

This is the way we will power our compressor.

Re: 2015 Compressor Fuse
 

Not really, but thanks for answering. I want to avoid additional electronics if not necessary.

Re: 2015 Compressor Fuse
 

Yes, it is legal to connect the PCM to a 20 amp Breaker, and not the PCM connection on the PDP.

The Robot can have One and Only One compressor. R48 says "PCM - with compressor". If the compressor had to be connected to the PCM at the PCM connection, then it would be impossible to also have another PCM with a compressor connected to a different 20 amp circuit.

In addition, you are not required to use the PCM to control your compressor. You could use a Spike Relay as rsisk mentioned. Again, if you had to use the PCM, then there would be no reason for R66-D.

Re: 2015 Compressor Fuse
 

I don't see anything in the manual that requires the PCM to be powered by the connection at the end of the PDB.

I don't see anything preventing power from coming from a PDB circuit with a 20AMP breaker.

And finally, don't see anything about it on the inspection worksheet.

Unless directed otherwise by FIRST, I would pass it at a competition.