2-6
2.3 Input and Output Specifications
2.3.1 Input specifications
- DC input specifications (X0 toX7)
Item
Description
Number of input
8 points
6 points (thermocouple input type)
Insulation method
Optical coupler
Rated input voltage
24 V DC
Operating voltage range
21.6 to 26.4 V DC
Rated input current
Approx. 4.3 mA
Input points per common
8 points/common,
6 points/common (thermocouple input type)
(Either the positive or negative of the input
power supply can be connected to
common terminal.)
ON voltage/ON current
19.2 V or less / 4 mA or less
OFF voltage/OFF current
2.4 V or more / 1 mA or more
Input impedance
Approx. 5.1 k
Ω
(X0, X1)
Approx. 5.6 k
Ω
(X2 to X7)
Response time
OFF to ON
50 µs or less (X0, X1)
Note)
100 µs or less (X2 to X5)
Note)
2 ms or less (X6, X7)
ON to OFF
50 µs or less (X0, X1)
Note)
100 µs or less (X2 to X5)
Note)
2 ms or less (X6, X7)
Operation indicator
LCD display (I/O monitor mode)
Note) X0 through X5 are inputs for the high-speed counter and have a fast response time. If used as
normal inputs, you are recommend to insert a timer in the ladder program as chattering and
noise may be interpreted as an input signal.
Also, the above specifications apply when the rated input voltage is 24V DC and the temperature
is 25 ºC.
Internal circuit diagram
R
1
R
2
X0 and X1
5.1 k
Ω
3
k
Ω
X2 to X5
5.6 k
Ω
2
k
Ω
X6 and X7
5.6 k
Ω
1
k
Ω
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Содержание AFPE214325
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Страница 69: ...Chapter 8 PID Control Phone 800 894 0412 Fax 888 723 4773 Web www clrwtr com Email info clrwtr com ...
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