User’s Manual 15
PART 1 AD268 4. Wiring
4.2 Signal wiring
Voltage inputCurrent inputExternal 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
Normall y 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
CTi Automation - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.ctiautomation.net - Email: info@ctiautomation.net