
http://www.m-system.co.jp/ R7C SPECIFICATIONS ES-7801 Rev.17 Page 33/39
DISCRETE INPUT EXTENSION MODULE, 16 points
MODEL: R7C-EA16
SPECIFICATIONS
Common: Positive or negative common (NPN/PNP) per
16 points
Number of I/O: Input, 16 points
Maximum inputs applicable at once: No limit (at 24 V DC)
I/O status indicator: LED turns on with closed contact.
Isolation: Input to internal circuits
Rated input voltage: 24 V DC ±10 %; ripple 5 %p-p max.
ON voltage / current: ≥ 15 V DC (input – COM) / ≥ 3.5 mA
OFF voltage / current: ≤ 5 V DC (input – COM) / ≤ 1 mA
Input current: ≤ 5.5 mA per point at 24 V DC
Input resistance: Approx. 4.4 kΩ
ON delay: ≤ 2.0 msec.
OFF delay: ≤ 2.0 msec.
TERMINAL ASSIGNMENTS
10
NC
11
X1
12
X3
1
COM
2
X0
3
X2
13
X5
4
X4
14
X7
5
X6
15
X9
6
X8
16
XB
7
XA
17
XD
8
XC
9
XE
18
XF
NO. ID FUNCTION NO. ID FUNCTION
1 COM Common 10 NC No Connection
2 X0 Input 0 11 X1 Input 1
3 X2 Input 2 12 X3 Input 3
4 X4 Input 4 13 X5 Input 5
5 X6 Input 6 14 X7 Input 7
6 X8 Input 8 15 X9 Input 9
7 XA Input 10 16 XB Input 11
8 XC Input 12 17 XD Input 13
9 XE Input 14 18 XF Input 15
CIRCUIT DIAGRAM
Input Circuit
Control
Circuit
■ Input Circuit
1
16
17
18
XB
15
X9
XF
XD
14
X7
13
X5
12
X3
11
X1
9
XE
8
XC
7
XA
6
X8
5
X6
4
X4
3
X2
2
X0
COM
1
COM
2
X0
18
XF
Control
Circuit
■ Input Connection Examples
1
2
X0
COM
–+
18
XF
PNP Connection
1
2
X0
COM
– +
18
XF
NPN Connection
EXTENSION CONNECTOR
10
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