Wiring Example (Between A High-Speed Counter Module And An Encoder) - Mitsubishi NZ2GFCF-D62PD2 User Manual

6.7
Wiring Example (Between a High-Speed Counter Module
and an Encoder)
(1) Example of wiring with an open collector output type encoder (24VDC)
High-speed counter module
Phase A
820
Phase B
820
Phase Z
820
When wiring the high-speed counter module and an encoder, separate power cables and signal cables. The following figure
shows examples.
● Example of correct wiring
● Example of incorrect wiring
High-speed
COM
counter module
Pulse input
24V
External
24VDC
power
supply
76
DIF
B19(B13)
5V
A20(A14)
24V
B20(B14)
240 270 4.1k
COM
A19(A13)
DIF
B17(B11)
5V
A18(A12)
24V
B18(B12)
240 270 4.1k
COM
A17(A11)
DIF
B15(B09)
5V
A16(A10)
24V
B16(B10)
240 270 4.1k
COM
A15(A09)
High-speed
COM
counter module
Pulse input
24V
Shielded twisted pair cable
External
24VDC
power
0V
supply
Shielded twisted pair cable
0V
Shielded twisted pair cable
External
power
supply
OUT
+24V
Encoder
0V
E
OUT
+24V
Because a current flows through
the shielded twisted pair cables
Encoder
0V
in the same direction,
canceling effect does not work
E
and pulses become susceptible
to electromagnetic induction.
Encoder
24V
OUT
24V
OUT
24V
OUT
E
24VDC
0V