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6 WIRING
6.8 Examples of Wiring for Various Uses
2-phase 2-count
The wiring examples in this section use the following settings. When settings other than those in the table are used, use the
examples shown in the following figures as references for wiring.
The settings of the high-speed counters are set by using the parameter settings of the engineering tool.
For details, refer to GX Works3 Operating Manual.
■Example of wiring
*1 The grounding resistance should be 100 or less.
CH to be used Pulse input mode External preset input External enable input Operation mode
CH2 2-phase 2-input Invalid Invalid Normal mode
CPU module
S/S
L
N
24V
0V
24V
Rotary encoder
Class D grounding
*1
Fuse
In the case of sink wiring
0V
X002
X003
A phase
B phase
Z phase
• NPN open collector transistor output rotary encoder
1.5 k
24 V DC
CPU module
S/S
L
N
24V
0V
24V
Rotary encoder
Class D grounding
*1
Fuse
In the case of source wiring
0V
X002
X003
A phase
B phase
Z phase
• PNP open collector transistor output rotary encoder
1.5
k
24 V DC