Mitsubishi Electric MELSERVO-J3 Series Instruction Manual page 74

3. LOAD SIDE ENCODER
(3) Internal wiring diagram
For production of the load side encoder cable, use a cable durable against the long period of flexing action.
Even though the cable length is max. 30m 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. For details, contact with the encoder manufacturer.
1) When the consumption current of the load side encoder is 350mA or less
Note 1. For the load side encoder without Z-phase, set parameter No.PC27 to " 1
2. Securely connect a shield cable to the plate (ground plate) in the connector.
3. The following table shows the cable size to be used and the number of paired connections of LG and P5 when the consumption
current of the load side encoder is 350mA. When the consumption current of the load side encoder is 350mA or less, the paired
connections can be decreased.
Wiring length
to 5m
to 10m
to 20m
to 30m
Connector on
the servo amplifier side
(Note 3)
P5 1
LG 2
PA 3
PAR 4
PB 5
PBR 6
PZ 7
PZR 8
9
PSE 10
SD (Note 2)
Plate
30m or less
Number of LG and P5 connections
ABZ-phase differential
output load side encoder
5V
0V
A-phase
A-phase
B-phase
B-phase
Z-phase
Z-phase
Shield
".
2-pair
3-pair
6-pair
8-pair
3 - 15
(Note 1)
Cable size
AWG22