1-11
1 Introduction
CJ-series High-speed Counter Units Operation Manual for NJ-series CPU Unit(W492)
1-3 Sp
ecific
ation
s an
d
Ch
aracteristics
1
1
-3-3
Input Specifications
Filter
Selection
Timing requirement [
µ
s]
A
B
C
D
E
F
G
H
I
J
10 kHz
<3
>50
>100
>23
>10
>100
>50
>100
>23
>10
50 kHz
<3
>10
>20
>4.5
>10
>20
>10
>20
>4.5
>10
500 kHz
<3
>2
>4
>1
>10
>2
>1
>4
>1
>10
C
A
A
B
B
50%
Off
On
E
Z
50%
Off
On
Counter inputs A and B
Input pulses with a dut y factor of 50%
Relationship between A and B phases w ith phase
differential inputs
Counter Input Z *
DD
D
D
Phase A
Phase B
Off
50%
On
Counter inputs A and B
Input pulses with a dut y factor of 50%
Relationship between A and B phases w ith phase
differential inputs
Counter Input Z *
0V
Off
On
F
GG
0V
Off
On
Z
J
0V
Off
On
Phase A
Phase B
0V
Off
On
II
I
I
H
5-, 12- or 24- VDC input signals
RS-422 Line Driver signals
Counter Inputs A, B, Z and Digital Inputs
* M aximum a llowed f requency of Z-pulses is 1 k Hz
* Maximum allowed frequency of Z-pulses is 1 k Hz