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5.2 Settings According to Host Controller
5 -21
5.2.3 Using the Encoder Signal Output
Encoder output signals divided inside the Servopack can be output externally. These signalscan
be used to form a position control loop in the host controller.
Frequency
dividing
circuit
PG
Servopack
CN2
CN1
(Servomotor)
Encoder
Host controller
These outputs
explained here.
Phase A
Phase B
Phase C
Serial data
The output circuit is for line-driver output. Connect each signal line according to the following
circuit diagram.
Servopack
Line receiver
Host controller
PAO
/PAO
R
P
2
CN1-33
Phase
A
3
1
CN1-34
PBO
/PBO
R
P
6
CN1-35
Phase
B
5
7
CN1-36
PCO
/PCO
R
P
10
CN1-19
Phase
C
11
9
CN1-20
Choke
coil
8 C
OV
16
+5V
+
--
Smoothing
capacitor
0V
+5V
CN1-1
Contactor shell
OV
Shield
P: Indicates twisted-pair wires.
Applicable line receiver: SN75175 manufactured by Texas
Instruments Inc., MC3486 or the equivalent.
R (terminator
): 220
to
470
W
C (decoupling capacitor
): 0.1
m
F
Phase B
Phase A
Phase C
z
Dividing
Dividing means converting an input pulse train from the encoder mounted on the Servomotor according to the preset
pulse density and outputting the converted pulse. The units are pulses per revolution.
TERMS
5
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