3
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Voltage Input Circuits
Current Sinking Input Circuits
An Edison S500-32-R 0.032A fast-acting
fuse is recommended for all current loops.
COM
V+
4-Wire Voltage
Transmitter
4-Wire Transmitter
Optional Transmitter
Power Supply
AC or DC
- +
24 VDC User
Supplied Power
+
3-Wire Voltage
Transmitter
V+
COM
3-Wire Transmitter
.032A
2-Wire 4-20 mA
Transmitter
fuse
fuse
.032A
fuse
+
.032A
- +
- +
V+
I
+
COM
V+
I
+
3-Wire Current
Transmitter
4-Wire 4-20 mA
Transmitter
2-Wire Transmitter
3-Wire Transmitter
4-Wire Transmitter
Power
Supply
24VDC User
Supplied Power
+
–
+
–
+
–
User Supplied
Transmitter Power
AC or DC
V+
I
+
COM
COM
V1+
I1+
V2+
I2+
V3+
I3+
I4+
V4+
COM
COM
24VDC-
24VDC+
- +
24 VDC User
Supplied Power
CH1 ADC
CH2 ADC
CH3 ADC
CH4 ADC
ISOLATED
ANALOG
CIRCUIT
POWER
ISOLATED ANALOG
CIRCUIT COMMON
INTERNAL
MODULE CIRCUITRY
COM
COM
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10
11
12
18
13
14
15
16
17
Wiring Diagram
Schematic
Notes
:
1. Shield connected to signal source
common.
2. If current is chosen, I+ must be
jumped to V+. For example when
using 4-20 mA source for Input 3,
I3+ must be jumped to V3+.
