28 Installation
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
Excitation Signal
The following figure shows the SIN and COS outputs and the excitation signal.
Excitation
SIN
Carrier in phase with excitation
COS
Carrier in phase
with excitation
Zero position
Amplitude
4...12 V
rms
Carrier in anti-phase with excitation
90°
180°
Frequency
1...20 kHz
Carrier in anti-phase with excitation
Carrier in phase
with excitation
270°
Current, max.
100 mA
rms
Zero position