[Al Skierkiewicz]

There is no rule that prevents cooling fans from being used on the robot and as pointed out, have been allowed for many years. However, only the supplied fans for the Victors can be wired to the power input of the Victors.
<R60>
E. The supplied fans attached to the Victor speed controllers may be powered from the Victor power input terminals.

Any other fans have to be wired to a circuit breaker on the PD. Please remember that only one wire can be inserted in each Wago so that means you have to come up with some other distro for multiple fans. Also, if you use a quick connect 1/4" terminal on the Victor input you can eliminate the Power Poles which introduces another potential failure in the electrical system. The push on terminals give you the same abilities but with two less terminations (and the added resistance) per Victor.