Allen-Bradley 1734-ADN Manual do Utilizador Página 32

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Publication CIG-WD001A-EN-P - October 2003
3-16 1746 I/O Modules
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Channel 0 2-Wire
Current Transmitter
Channel 2 2-Wire
Current Transmitter
Channel 4 2-Wire
Current Transmitter
Channel 6 3-Wire
Current Transmitter
(2)
(3)
(3)
(3)
(3)
(2)
(2)
(2)
(4)
Vdc power supply
(5)
Optional second
FTC power supply
(6)
(1)
(1)
ANALOG
COM
ANALOG
COM
IN 0 IN 1
IN 2 IN 3
IN 4 IN 5
IN 6 IN 7
IN 8 IN 9
IN 10 IN 11
IN 12 IN 13
IN 14 IN 15
Channel 0
Channel 2
Channel 4
Channel 6
Analog Com
Channel 8
Channel 10
Channel 12
Channel 14
Channel 1
Channel 3
Channel 5
Channel 7
Analog Com
Channel 9
Channel 11
Channel 13
Channel 15
Terminal Block Release Screw
Maximum Torque = 0.7 to 0.9 Nm (6 to 8 in-lbs.)
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.
Terminal Block Spare Part Catalog Number 1746-RT25G
1746-NI16I
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