MODEL: R7C
RELAY CONTACT OUTPUT EXTENSION MODULE
CIRCUIT DIAGRAM
MODEL: R7C-EC8C
Ry
11
12
13
14
2
Y0
Ry
Ry
Ry
Y1
SPECIFICATIONS
Y2
Common: 1 common per 4 points (4 terminals)
Common current: Max. 8 A (4 terminals)
Number of I/O: Relay contact output, 8 points
Maximum outputs applicable at once: No limit (at 24 V DC)
Output status indicator: LED turns ON with contact ON
Isolation: Output to internal circuits
Y3
COM0
COM0
COM0
COM0
Y4
3
4
Relay driving power: 24 V DC ±10 %, ≥ 60 mA
Rated load: 250 V AC @2 A (cos ø = 1)
30 V DC @2 A (resistive load)
5
Control
Circuit
Ry
Ry
Ry
Ry
15
16
17
18
6
Y5
Electrical life 10 cycles (rate 30/min.)
5
Maximum switching voltage: 250 V AC or 30 V DC
Maximum switching power: 500 VA or 60 W
Minimum load: 24 V DC @5 mA
Y6
Y7
COM1
COM1
COM1
COM1
0V
Mechanical life: 2 × 10 cycles (rate 300/min.)
7
When driving an inductive load, external contact protection
and noise quenching are recommended.
ON delay: ≤ 10 msec.
7
8
9
OFF delay: ≤ 10 msec.
1
10 +24V
TERMINAL ASSIGNMENTS
10
+24 V
11
Y0
12
Y1
13
Y2
14
Y3
15
Y4
16
Y5
17
Y6
18
Y7
■ Output Connection Example
1
2
3
4
5
6
7
8
9
0 V COM0 COM0 COM0 COM0 COM1 COM1 COM1 COM1
4 points / common
8 points / common
24 V DC
–
24 V DC
–
+
NO. ID
FUNCTION
0 V 0 V
COM0 Common 0
NO. ID
FUNCTION
+
+
10
1
10
1
24V
0V
24V
1
2
3
4
5
6
7
8
9
10 +24 V 24 V DC
0V
11
12
13
14
15
16
17
18
Y0 Output 0
Y1 Output 1
Y2 Output 2
Y3 Output 3
Y4 Output 4
Y5 Output 5
Y6 Output 6
Y7 Output 7
COM0 Common 0
COM0 Common 0
COM0 Common 0
COM1 Common 1
COM1 Common 1
COM1 Common 1
COM1 Common 1
11
11
Y0
Y0
Y3 14
Y3 14
Y4 15
Y7 18
2
5
COM0
COM0
–
+
+
–
2
5
6
9
COM0
COM0
COM1
COM1
15
Y4
–
+
+
–
Y7 18
6
9
COM1
COM1
–
+
+
–
R7C SPECIFICATIONS
ES-7801 Rev.26 Page 45/46
http://www.m-system.co.jp/