As Joe says, the rule is the rule.
I am concerned that
this Q&A ruling could create difficulty for inspectors, since (like Joe) we will have trouble distinguishing a DC Tachometer from a DC Motor. I just hope any DC Tachometers that I see when inspecting robots have legible manufacturers labels that allow me to identify them as such, since this rule doesn't allow me assume they are tachometers based on how they are connected to the control system.
As mentioned in several earlier posts, uniform application of the rules at all events should be an important consideration.
__________________
Richard Wallace
Mentor since 2011 for FRC 3620 Average Joes (St. Joseph, Michigan)
Mentor 2002-10 for FRC 931 Perpetual Chaos (St. Louis, Missouri)
since 2003
I believe in intuition and inspiration. Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution. It is, strictly speaking, a real factor in scientific research.
(Cosmic Religion : With Other Opinions and Aphorisms (1931) by Albert Einstein, p. 97)