25 HIGH-SPEED INPUT/OUTPUT FUNCTION
25.1 High-speed Counter Function
263
25
High-speed comparison match starts
Use the high-speed counter function and external start signal (Page 398 External Start Signal) to start positioning
operation when the specified number of inputs is detected. Examples of the wiring and parameter setting that start positioning
operation when the input is detected 100 times are shown below.
For details on the high-speed counter function, refer to the following.
Page 233 High-speed Counter Function
System configuration example
The wiring when the FX5U CPU module (transistor) is used is shown below. For the other wiring, refer to connection
examples of each servo amplifier.
*1 Be sure to use the class-D grounding method (grounding resistance: 100 or less).
Parameter setting example
Set the high speed I/O setting to the following parameter in GX Works3. A parameter that is not described here does not need
to be set.
■High-speed counter
[Navigation window] [Parameter] Module model name [Module Parameter] [High Speed I/O] [Input
Function] [High Speed Counter] [Detailed Setting] [Basic Settings]
Set the CH1 parameter as follows.
Use/Do Not Use Counter Operation Mode Pulse Input Mode
Use Normal Mode 1-Phase 1 Input (S/W Up/Down Switch)
FX5U-32MT/ES
Photocoupler
Class-D grounding
*1
AC100V-240V
Manual pulse generator,
encoder and others
Servo amplifier (drive unit)
and others
Pulse train
Direction
High speed matched output signal
External start signal
High speed counter input signal
X1
X0
24V
0V
S/S
N
L
COM0
Y0
Y5
Y4
COM1
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