4.7 Absolute Encoders
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4
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4.7.1
Connecting the Absolute Encoder
The following diagram shows the connection between a servomotor with an absolute encoder, the SERVO-
PACK, and the host controller.
(1) Using an Encoder Cable with a Battery Case
∗1.
The absolute encoder pin numbers for the connector wiring depend on the servomotors.
∗2.
: represents shielded twisted-pair wires.
∗3.
If you use an absolute encoder, provide power by installing an encoder cable with a battery case (model: JUSP-
BA01-E) or install a battery on the host controller.
/PCO
ENC
3
4
CN2
17
18
19
20
21
22
CN1
SG
16
PAO
/PAO
PBO
/PBO
PCO
Absolute encoder
(Shell)
Battery*3
SERVOPACK
Phase A
Phase B
Phase C
Connector
shell
Connector
shell
*2
*2
*1
0 V
Host controller
5
6
1
2
PG5V
PG0V
PS
/PS
BAT(+)
BAT(-)
Phase A
Phase B
Phase C
R
R
R
Applicable line receiver:
SN75ALS175 or MC3486 manufactured
by Texas Instruments or the equivalent
Terminating resistance R: 220 to 470
Ω
Encoder cable
with battery case
SN75ALS174 output line
driver manufactured by
Texas Instruments or the
equivalent
+ -