AutomationDirect D2-16ND3-2 - Page 77

DL205 Installation and I/O Manual, 2nd Edition
3–45
Chapter 3: I/O Wiring and Specifications
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A
B
C
D
F2-04AD-1 4-Channel 4-20mA Analog Input
Note 1: Shields should be grounded at the signal source
More than one external power supply can be used provided all the power supply commons are connected. A Series 217, 0.032A, fast-acting
fuse is recommended for
4-20 mA current loops. If the power supply common of an external power supply is not connected to 0VDC on the module, then the output of
the external transmitter
must be isolated. To avoid “ground loop” errors, recommended 4-20 mA transmitter types are:
2 or 3 wire: Isolation between input signal and power supply.
4 wire: Isolation between input signal, power supply, and 4-20 mA output
CH1
4--wire
4--20mA
Transmitter
Optional
OV
AtoD
Converter
Internal
Module
Wiring
Analog S witch
+
--
External
P/S
250
See NOTE 1
250
250
250
CH2
3--wire
4--20mA
Transmitter
CH3
2-wire
4--20mA
Transmitter
CH4
2-wire
4--20mA
Transmitter
+
--
+
--
+
--
+
--
-- +
+
0VDC
+24 VDC
CH1--
CH2--
CH3--
CH4--
CH4+
CH3+
CH2+
CH1+
+--
24V
D
C
+24V
CH1--
CH1+
CH2--
CH2+
CH3--
CH3+
CH4--
CH4+
IN ANALOG
F2--04AD--1
4CH
0V
DC to DC
Converter
+5V
+15V
0V
-- 1 5 V
10-30VDC
5mA
ANALOG IN
4-20mA