Rockwell-automation 1746-NI16V SLC 500 Analog Input Modules User Manua User Manual Page 33

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Publication 1746-UM001A-US-P
Installation and Wiring 3-11
1746-NI16I
(1) There are two common terminals for all of the 16 current inputs. These two analog common terminals are
connected internally.
(2) All shield wires should be connected to chassis mounting screws.
(3) Unused channels should be connected to the analog common terminals (0 Volts).
(4) If separate shielded cables are used for each analog input channel, interposing terminal blocks are needed
to terminate up to 16 common wires. Then 1 to 4 common wires should be wired from the interposing
terminal block to the 2 common terminals on the 1746-NI16I module.
(5) The module does not provide loop power for analog inputs. Use a power supply that matches the
transmitter specifications.
(6) More than one power supply can be used if all supplies are class 2.
+
+
+
+
-
IN0
IN1
IN3IN2
IN4
IN5
IN7
IN6
Analog
Com
Analog
Com
IN9
IN8
IN10
IN11
IN13
IN12
IN14
IN15
+
-
+
-
+
-
+
-
+
+
-
-
Channel 0
2-wire current
Transmitter
Channel 2
2-wire current
Tr ans mitt er
Channel 4
2-wire current
Trans mitt e r
Channel 6
3-wire current
Transmitter
(2)
(3)
(3)
(3)
(3)
(2)
(2)
(2)
(4)
Vdc power
supply
(5)
Optional second
Vdc power
supply
(6)
(1)
(1)
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