
7
5.2 External Wiring
1) Wiring example of a module and an encoder
a) Wiring example with an open collector output type encoder (24VDC)
A20 (A13)
24 V
B20(B13)
12 V
A19(A12)
5 V
B19(B12)
ABCOM
Phase A
Shield
Shielded twisted pair cable
OUT
E
+24 V
Encoder
QD62-H01/H02
A18(A11)
24 V
B18(B11)
12 V
A17(A10)
5 V
Phase B
OUT
E
+24 V
0 V
+24 V
0 V
24 V DC
External
power
supply
Shielded twisted pair cable
Shield
The terminal number in parentheses is for Channel 2.
POINT
When wiring the QD62-H01/H02 and the encoder, separate the power
supply cable and signal cable line.
The following diagram figure shows an example.
[Wiring example]
24 V
ABCOM
Phase
A
QD62-H01/H02
OUT
0 V
24 V DC
External
power
supply
Encoder
+24 V
0 V
E
[Incorrect wiring example]
OUT
Encoder
+24 V
0 V
E
24 V
ABCOM
Phase
A
QD62-H01/H02
0 V
24 V DC
External
power
supply
The current flows
through the shielded
twisted pair cable in
the same direction, so
there is no cancelling
effect.
This makes it more
prone to electromagnetic
induction.