￭
Excitation signal
The FEN-21 feeds the resolver differentially with an excitation signal. The amplitude
and the frequency are adjustable by software in the following boundaries
Current, max.
Frequency
Amplitude
Excitation Signal
100 mA
rms
1...20 kHz
4...12 V
rms
The following figure shows the SIN and COS outputs and the excitation signal.
90°
180°
270°
Zero position
Zero position
Carrier in phase with excitation
Carrier in anti-phase with excitation
COS
SIN
Excitation
Carrier in phase
with excitation
Carrier in phase
with excitation
Carrier in anti-phase with excitation
28 Installation
