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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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