Rockwell Automation 1746-NI16V SLC 500 Analog Input Modules User Manual - Manual (Page 32)

Publication 1746-UM001A-US-P
3-10 Installation and Wiring
Wiring Single-Ended Inputs
1746-NI16V
(1) There are two common terminals for all of the 16 voltage 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-NI16V 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.
NOTE
Although the above diagram has 12 unused inputs,
only 4 channels are shown connected to the Analog
Com as an example.
+
+
+
+
-
IN0 IN1
IN3 IN2
IN4 IN5
IN7 IN6
Analog
Com Analog
Com
IN9 IN8
IN10 IN11
IN13 IN12
IN14 IN15
+
+
+
+
+
+
-
-
Channel 0
Voltage
Transmitter
-
-
Channel 2
Voltage
Transmitter
Channel 4
Voltage
Transmitter
Channel 6
Voltage
Transmitter
-
-
(2)
(3)
(3)
(3)
(3)
(2)
(2)
(2)
(4)
Vdc power
supply
(5)
Optional second
Vdc power
supply
(6)
(1) (1)