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KU-350 E
"SERVO CONTROL UNIT
1"
;
ro=4
|
|
IC 1,FRS
TRSS
, Z a
(ia
we
it
Limiter.
-
1 .
Forword
es
a |
Amp.
~ |
/Reverse | | |
|
I
)
iis
,
|
|
Referens
Bie
NS UR Se
Ae
oe
oe
B e
9
ae.
Osciiletion
:
IC 2, TRI
;
|
Limiter
ne
i
Amp.
boca
|
IC 1
33,45, STOP
:
|
* 108, TR7.
|
Rotation
—
:
a
HTT
Ic2
TRIG, 15,18 _
Forward
AM-
Modulator
*
" |
Reference
:
Voltage
-
:
o S
o e
e
2
| 4
; :
|
Comparator
Reverse
AM-
Modulator
|
1
Ic2
"-.
TRIG,I7,19
0
~O————+
POWER
|
—j
Transformer
ue
Tae:
SOURCE
Fis
_ The output voltages of the F/V converter and the phase
comparator are mixed and then compared with a reference
voltage to modulate the amplitude of the motor drive
circuits of either forward or reverse direction.
|
The change-over of the speed 'is performed by changing the
dividing
denominator
of the
reference
frequency
and
simultaneously
changing
the proportion
of the F/V con-
verter.
oe
_ The strobe scope is: flashed by 1/2 the frequency of that
_ _ of the comparison reference.
:
es
The limiter output (IC :2, TR 1 on KU-350) further. detects
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