High-Speed Counter - Mitsubishi Electric FX5U User Manual

High-speed counter

Examples of wiring for high-speed counters are shown below.
When capturing pulses of a response frequency of 50 to 200 kHz, refer to Page 86 In the case of capturing high-speed
pulses.
For details on the high-speed counters, refer to MELSEC iQ-F FX5 User's Manual (Application).
For the programs, refer to MELSEC iQ-F FX5 Programming Manual (Instructions, Standard Functions/Function Blocks).
1-phase 1-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.
CH to be used
CH1
The settings of the high-speed counters are set by using the parameter settings of the engineering tool.
For details, refer to MELSEC iQ-F FX5 User's Manual (Application).
■Example of wiring
• NPN open collector transistor output rotary encoder
In the case of sink wiring
L
N
S/S
0V
24V
X000
CPU module
• PNP open collector transistor output rotary encoder
In the case of source wiring
L
N
S/S
0V
24V
X000
CPU module
*1 The grounding resistance should be 100  or less.
6 WIRING
100
6.8 Examples of Wiring for Various Uses
Pulse input mode External preset input
1-phase 1-input (S/W) Invalid
Fuse
Class D grounding *1
1.5 k
Fuse
*1
Class D grounding
1.5 k
External enable input Operation mode
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
Normal mode