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3rd party resolver with resolver based Aries drive

Most important consideration when checking compatibility of a 3rd party resolver with the resolver based Aries drive is the resolver speed. The resolver based Aries drive will only accept single speed resolvers. Other consideration involves the transformation ratio and the resolver excitation/Input Frequency. The transformation ratio has to with +/- 10% of 0.5 and the resolver excitation/Input Frequency 4 to 10 kHz.