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7-2. Cylinder Servo
Cylinder
Cylinder Servo
A sap oe
CPUB ee B head
HD62014
Tape
driver.
Cylinder motor
CYL—FG— Cylinder motorconsists of a pulse generator whose frequency varies in accordance
with the motor rotation. When the cylinder rotation is normal speed (2,000 rpm), the
motor provides 800 Hz signal CYL to CPU B.
FLL
|_|. 4.25ms (800Hz)
CYG—PG— _ Change-over signal for cylinder heads A and B
k—A head—=}—B head—=|<—A head—>|
= 30mS (33.3Hz) ——>|
CYFE — Control signal for cylinder rotation frequency (PWM output)
CYP — Control signal for cylinder phase (PWM output)
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