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3 SPECIFICATIONS
3.4 General-purpose input/output specifications
No. of input points
Insulation method
Rated input voltage
Rated input current
Working voltage range
Max. No. of simultaneous
input points
ON voltage/ON current
OFF voltage/OFF current
Input resistance
OFF ON
Response
time
ON OFF
Common method
External connection
method
Applicable wire size
Applicable crimp terminal
The general-purpose input/output specifications of the R2 are shown below.
(1) General-purpose input specifications
DC input (Positive common/negative common shared type)
R2
2 points
Photo coupler insulation
24VDC
Approx. 7mA
19.2 to 28.8VDC (ripple rate within 5%)
100%
14V or more/3.5mA or more
6V or less/1.7mA or less
Approx. 3.3k Ω
10ms or less
10ms or less
2 points/common (COM1)
Positive common/negative common shared
type
7-point terminal block (M3.5 screw)
2
0.75 to 2mm
RAV1.25-3.5, RAV2-3.5 (JIS C 2805
compliant)
24VDC
Terminal
No.
TB1
TB2
3 - 4
MELSEC-A
External connection view
1 XC
2
COM1
3 XD
Signal
Terminal
name
No.
XC
TB3
COM1
TB4
Signal
name
XD
NC
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