Panasonic MINAS A5-series Operating Instructions Manual page 61

7. Wiring to the connector, X5
Connect on to Feedback Scale
Wiring Diagram of X5
Detection head
External scale unit
How to Wiring
Wire the signals from the external scale to the external scale connector, X5.
1) Cable for the external scale to be the twisted pair with bundle shielding and to hav-
ing the twisted core wire with diameter of 0.18mm
2) Cable length to be max. 20m. Double wiring for 5V power supply is recommended
when the wiring length is long to reduce the voltage drop effect.
3) Connect the outer film of the shield wire of the external scale to the shield of the
junction cable. Also connect the outer film of the shield wire to the shell (FG) of con-
nector X5 of the driver without fail.
4) Separate the wiring to X7 from the power line (L1, L2, L3, B1, B2, B3, U, V. W,
as much as possible (30cm or more). Do not pass these wires in the same duct, nor
bundle together.
5) Do not connect anything to the vacant pins of X5.
Input circuit
• EXA, EXB, EXZ input circuit
EXA, EXB, EXZ
EXA, EXB, EXZ
EX5V
EX0V
EXPS
EXPS
EXA
EXA
EXB
EXB
EXZ
EXZ
FG
External scale
side
2kΩ
20kΩ
PULS
120Ω
20kΩ
2kΩ
Connector X5
1
EX5V
2
EX0V
3
EXPS
4
EXPS
5
EXA
6
EXA
7
EXB
8
EXB
9
EXZ
10
EXZ
Twisted pair
Junction cable
.
2
1
2
+5V
0V
3
MUF-PK10-X
(J.S.T. Mfg. Co., Ltd.)
Shell of X5 (FG)
4
Servo driver
5
6
)
7
2-25