User’s Manual
15
PART 1 AD268
4. Wiring
4.2 Signal wiring
Voltage input
Current input
External 24Vdc power supply
+15V
AG
-15V
nP
nN
Internal circuit
Shielded twisted-pair cable
n :
Channel number (1 to 8)
AG : Analog ground
FG : Frame ground
AG
250
+
-
V
Set the jumper
plug to Side 1
1
2
3
Voltage source
AD268
+15V
AG
-15V
nP
nN
Internal circuit
Shielded twisted-pair cable
n :
Channel number (1 to 8)
AG : Analog ground
FG : Frame ground
AG
250
+
-
↑↑↑↑
Set the jumper
plug to Side 3
1
2
3
Current source
AD268
P24
COM
Internal circuit
Normally connect LG and FG ,
then connect to ground. (a)
However, depending on the
condition, connect grounding
individually by opening LG and
FG. (b)
AD268
LG
FG
+
-
24Vdc
±
10%
(b)
(a)
DC/DC
converter
+15V
-15V
AG
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