Omron B7A - Page 39

B7A
B7A
37
Connection of Single Power Supply to Input or Output T erminal
Note: In this example, a shielded transmis -
sion cable with a thickness of 0.75 mm
2
min. is used, through which a current of
1.8 A max. can be transmitted. It is rec -
ommended that the shield be grounded.
DC power
supply
– +
–
+
SIG
Transmission distance
50 m max.
(24 V)
SIG–+ERR
SIG–+
GND
Shielded cable
Input Output
32-point Terminal Models
I/O Delay: Normal Speed
Connection of Independent Power Supplies
Note: A VCTF cable with a
thickness of 0.75 mm
2
min. must be used for
signal transmission.
DC power
supply
– +
–
SIG2
Transmission distance
500 m max.
DC power
supply
– +
(12 to 24 V) (12 to 24 V)
SIG SIG
––
21
SIG SIG
21
ERRERR
21
SIG1
+
+––
Input Output
Connection of Single Power Supply to Input or Output T erminal
Note:
In this example, a
VCTF transmission
cable with a thickness
of 0.75 mm
2
min. is
used, through which a
current of 1.8 A max.
can be transmitted.
DC power
supply
– +
–
SIG2
Transmission distance
100 m max.
(12 to 24 V)
SIG SIG
––
21
SIG SIG
21
ERRERR
21
SIG1
+
+––
+
Input Output