Specifications

5. CONNECTION OF UNIT
5.7 Connection of Machine Input/Output Signal
I-19
[Outline of input circuit]
The digital signal input circuit includes the sink type and source type. These can be selected with each
connector unit.
Connection method
Sink input
(X04 to X57)
<Octal notation>
DI_COM
X
X04 to X07:3.3kΩ 1/2W
X10 to X57:4.3kΩ 1/2W
DI_0V
DI_24V
680kΩ
Connection method
Source input
(X04 to X57)
<Octal notation>
DI_0V
DI_24V
DI_COM
X
X04 to X07:3.3kΩ 1/2W
X10 to X57:4.3kΩ 1/2W
680kΩ
[Input specifications]
Item Specifications
7mA/24VDC +10%, –15% (X04 to X07 sink/source changeover)
(External power supply)
Input voltage,
current
5mA/24VDC +10%, –15% (X10 to X57 sink/source changeover)
(External power supply)
Input sensitivity
OFF → ON 4.5mA or more, ON → OFF 1.5mA or less
OFF → ON Approx. 4ms, ON → OFF Approx. 4ms (General input X20 to X57)
X00 to X17 are incorporated in the digital filter. (Can be changed to 0 to 60ms;
note that the minimum is 50µs) (Note)
Input response
time
X00 to X03 require 50µs or more for the second trigger to be validated.
The input pulse is detected at
.
Circuit insulation Photo coupler insulation (* Excluding line receiver input)
(Note) The input filter value can be changed by rewriting the contents of the special data register
D8020 between 0 and 60 using the MOV command, etc. (The contents of D8020 are
automatically set to 10 (10ms) when the power is turned OFF and ON.)
D8020 value Digital filter value
0
10
to
60
0ms
10ms
to
60ms
Note that in actual use, the minimum C-R filter is provided even on this input, and the value will
not be lower than 50µs (20µs for X00 to X01). Refer to the FX2N Hardware Manual for details.