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The motor R1 indicates a standard size 15, frameless resolver. However, the color codes were not the same as the ones listed in today’s documentation. Below are the color codes we were using in 1988.

S4 = Blue
S2 = Black
S3 = Yellow
S1 = Red

Excitation:
R1 = Red/Shite
R2 = Black/White

DC Resistances
With the exception of the Excitation, all the colors were solid.
Attached are the parameters for the R1 Resolver and color codes from an 1988 catalog

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