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CHAPTER 6 INSTALLATION AND WIRING
6
6.
Ex
amples 
of
 W
iring B
et
w
ee
n t
he High-S
peed 
Count
er
 M
odule and 
an E
ncoder
6.3
Examples of Wiring Between the High-Speed Counter 
Module and an Encoder
(1) Example of wiring with an open collector output type encoder (24VDC)
For the wiring between the RD62 and an encoder, separate the power supply cables and the signal cables. The following 
figures show its examples:
● Example of correct wiring
● Example of inappropriate wiring
A20(A13)
24V
B20(B13)
12V
A19(A12)
5V
B19(B12)
ABCOM
Phase A
Shield
OUT
E
+24V
LD62
A18(A11)
24V
B18(B11)
12V
A17(A10)
5V
Phase B
Shield
OUT
E
+24V
0V
+24V
0V
24VDC
External power supply
Shielded twisted pair cable
Shielded twisted pair cable
Encoder
In parentheses, terminal numbers of channel 2 are shown.
24V
ABCOM
LD62
0V
24VDC
External 
power supply
OUT
Encoder
+24V
0V
E
Shielded twisted pair cable
Shield
Phase A
24V
ABCOM
LD62
OUT
0V
24VDC
External 
power supply
Encoder
+24V
0V
E
Shielded twisted pair cable
Shield
Phase A
Because currents flow in 
the same direction in the 
shielded twisted pair cable, 
canceling effect will be lost 
and electromagnetic 
induction may occur.