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1. LINEAR ENCODER
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(3) Internal wiring diagram
For fabrication, use a cable durable against the long period of bending action. Even though the cable
length is max. 30 m for the RS-422 communication, the length may be shortened due to the power
supply voltage drop or the specifications of linear encoder.
A connection example is shown below. Contact each linear encoder manufacturer for details.
1) When the consumption current of the linear encoder is 350 mA or less
B-phase
P5
LG
1
2
PZ
PZR
7
8
Servo amplifier-
side connector
A/B/Z-phase differential outpu
t
linear encoder
10
SD
Plate
5V
3
4
5
6
9
PA
PAR
PB
PBR
0V
A-phase
A-phase
B-phase
Z-phase
Z-phase
(Note 1)
30 m or less
(Note 2)
Shield
PSEL
(Note 3)
Note 1. For the encoder without Z-phase, set [Pr. PC27] to "_ 1 _ _".
2. Securely connect a shielded wire to the plate (ground plate) in the connector.
3. We recommend the following specifications encoder cables for the linear encoder
which consumption current is 350 mA. When the consumption current of the
encoder is less than 350 mA, the paired connections can be decreased.
Wiring length
Number of LG and P5
connections
Cable size
to 5 m 2-pair
to 10 m 3-pair
AWG 22
to 20 m 6-pair
to 30 m 8-pair