Manualshelf

User manual

ManualsBrandsAllen-Bradley ManualsAdapter1738-ADNX
41424344454647484950
Publication CIG-WD001B-EN-P - May 2005
5-18 1746 I/O Modules
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Power
Supply
Connections
single-end
signal source
single-end
signal source
single-end
signal source
single-end
signal source
differential
signal source
differential
signal source
differential
signal source
differential
signal source
shieldshield
shieldshield
shield
shield
shield
shield
shield
shield
shield
Channel 7
Channel 6
Channel 5
Channel 4
Channel 3
Channel 2
Channel 1
Channel 0
shield
1. Use unshielded communication cable (Belden 8761) and keep the length as short as possible.
2. Connect only one end of the cable shield to earth ground.
3. Connect the shield drain wires for channels 0 to 3 to the top shield terminal.
4. Connect the shield drain wires for channels 4 to 7 to the bottom shield terminal.
5. Shield terminals are internally connected to chassis ground which is connected to earth
ground via the SLC backplane.
6. Single-ended source commons may be jumpered together at the terminal block.
7. The channels are not isolated from each other.
8. If a differential signal source has an analog common, it cannot and must not be
connected to the module.
9. The common mode voltage range is ±10.5 volts. The voltage between any two terminals
must be less than 15 volts when connected in a single-ended configuration.
10. The module does not provide power for the analog inputs.
11. Use a power supply that matches the transmitter (sensor) specifications.
Shield
Channel 0 (-)
Channel 1 (-)
Channel 2 (-)
Channel 3 (-)
Channel 4 (-)
Channel 5 (-)
Channel 6 (-)
Channel 7 (-)
Channel 0 (+)
Channel 1 (+)
Channel 2 (+)
Channel 3 (+)
Channel 4 (+)
Channel 5 (+)
Channel 6 (+)
Channel 7 (+)
Shield
Terminal Block Release Screw
Maximum Torque=0.7 to 0.9 Nm
(6 to 8 in-lbs.)
Terminal Block Spare Part Catalog Number 1746-RT25G
1746-NI8
0
1
2
9
10
11
3
4
5
6
7
8
+
-
analog
source
earth
ground
Jumper
unused
inputs.
LOAD
earth
ground
Do not jumper
unused outputs.
IN 0+
IN 0-
ANL COM
IN 1+
IN 1-
ANL COM
not used
OUT 0
ANL COM
not used
OUT 1
ANL COM
0
1
2
9
10
11
3
4
5
6
7
8
+
-
analog
source
earth
ground
Jumper
unused
inputs.
LOAD
earth
ground
Do not jumper
unused outputs.
IN 0+
IN 0-
ANL COM
IN 1+
IN 1-
ANL COM
not used
OUT 0
ANL COM
not used
OUT 1
ANL COM
1746-NIO4I 1746-NIO4V