Mitsubishi Electric MELSEC iQ-F FX5U User Manual page 135

2-phase 2-input
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.
CH to be used
CH2 (CPU module) or CH10 (high-speed pulse
input/output module)
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
• NPN open collector transistor output rotary encoder
In the case of sink wiring
• When the input terminals of the CPU module are used
Fuse
L
*1
Class D grounding
N
S/S
0V
1.5 k
24V
X2
CPU
X3
module
• PNP open collector transistor output rotary encoder
In the case of source wiring
• When the input terminals of the CPU module are used
Fuse
L
*1
Class D grounding
N
S/S
0V
24V
1.5
k
X2
CPU
X3
module
*1 The grounding resistance should be 100  or less.
Pulse input mode External preset input
2-phase 2-input Invalid
Rotary encoder
24 V DC
24V
0V
A phase
B phase
Z phase
Rotary encoder
24 V DC
24V
0V
A phase
B phase
Z phase
External enable input Operation mode
Invalid
• When the input terminals of the High-speed pulse
input/output module are used
Fuse
L
*1
Class D grounding
N
S/S
0V
CPU
24V
module
1.5 k
S/S
High-speed
X2
pulse
input/output
X3
module
• When the input terminals of the High-speed pulse
input/output module are used
Fuse
L
*1
Class D grounding
N
S/S
0V
CPU
24V
module
S/S
1.5
k
High-speed
X2
pulse
input/output
X3
module
6.8 Examples of Wiring for Various Uses
Normal mode
Rotary encoder
24 V DC
24V
0V
A phase
B phase
Z phase
Rotary encoder
24 V DC
24V
0V
A phase
B phase
Z phase
6 WIRING
133
6