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Allen-Bradley 1746-NI8, Installation Instructions Manual, Page: 3 / 20

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Allen-Bradley 1746-NI8 Installation Instructions Manual Download Page 3

SLC 500™ Analog Input Module           

3

Publication 1746-IN006A-US-P

For More Information

For detailed information on planning and installing your system, see the following 
publications:

If you would like a manual, you can:

• download a free electronic version from the internet: 

www.theautomationbookstore.com

• purchase a printed manual by:

– contacting your local distributor or Rockwell Automation representative
– visiting 

www.theautomationbookstore.com

 and placing your order

– calling 

1.800.963.9548

 (USA/Canada) 

or 

001.330.725.1574

 (Outside USA/Canada)

Publication

Publication 
Number

Industrial Automation Wiring and Grounding Guidelines

1770-4.1

SLC 500™ Analog Input Modules User Manual

1746-6.8

SLC 500™ Modular Hardware Style Operation and Installation Manual

1747-6.2

SLC 500™ Fixed Hardware Style Operation and Installation Manual

1747-6.21

@JO"VTQQE

@JO"VTQQE

".

".

Aotewell Ltd 

www.aotewell.com 

Industry Automation

HongKong|UK|China

[email protected]

+86-755-8660-6182

http://www.aotewell.com/

Summary of Contents for 1746-NI8

Page 1: ...Considerations 4 Environnements dangereux 4 Electrostatic Damage 5 1746 NI8 Power Requirements 5 Module Location in Chassis 6 Heat and Noise Considerations 7 Module Installation and Removal 7 Terminal...

Page 2: ...is publication Allen Bradley publication SGI 1 1 Safety Guidelines for the Application Installation and Maintenance of Solid State Control available from your local Allen Bradley office describes some...

Page 3: ...epresentative visiting www theautomationbookstore com and placing your order calling 1 800 963 9548 USA Canada or 001 330 725 1574 Outside USA Canada Publication Publication Number Industrial Automati...

Page 4: ...ents may impair suitability for Class I Division 2 Do not replace components or disconnect equipment unless power has been switched off Do not connect or disconnect components unless power has been sw...

Page 5: ...are using a modular system configuration add the values shown in the table above to the requirements of all other modules in the SLC chassis to prevent overloading the chassis power supply ATTENTION...

Page 6: ...e modules should be placed in the right most slot s of the chassis Operating Temperature Range Temperature Chassis Location 0 C to 55 C 32 F to 131 F Any slot except slot 0 0 C to 60 C 32 F to 140 F I...

Page 7: ...log input wiring away from any high voltage I O wiring Module Installation and Removal When installing the module in a chassis it is not necessary to remove the terminal block from the module However...

Page 8: ...ore installing the module in the chassis use the DIP switches on the module circuit board to select between voltage and current inputs for channels 0 through 7 The switch settings are OFF VOLTAGE INPU...

Page 9: ...to attach it to its backplane connector Never force the module into the slot 3 Cover all unused slots with the Card Slot Filler catalog number 1746 N2 Module Removal Procedure 1 Press the releases at...

Page 10: ...he removable terminal block alternate the removal of the slotted terminal block release screws Shield Channel 0 Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Channel 7 Channel 0 Channel...

Page 11: ...via the SLC backplane Single ended source commons may be jumpered together at the terminal block Channels are not isolated from each other If a different signal source has an analog common it cannot a...

Page 12: ...ource differential signal source differential signal source differential signal source differential signal source shield shield shield shield shield shield shield shield Shield Channel 0 Channel 7 Cha...

Page 13: ...ded inputs IMPORTANT The module does not provide loop power for analog inputs Use a power supply that matches the transmitter specifications Wiring Schematic for Single Ended Analog Input Connections...

Page 14: ...ansmitter Transmitter Transmitter Power Supply Power Supply Power Supply Supply Signal GND Supply Module Module Module IN IN IN IN IN IN 2 Wire Transmitter 3 Wire Transmitter 4 Wire Transmitter Wiring...

Page 15: ...d wiring guidelines found in your SLC 500 Modular Hardware Style Installation and Operation Manual publication 1747 6 2 Input Devices Transducer Source Impedance If the source impedance of the input d...

Page 16: ...annels 4 through 7 to the lower shield terminal 4 At the other end of the cable cut the drain wire and foil shield back to the cable 5 Connect the signal wires and shield drain wire to the 1746 NI8 te...

Page 17: ...frequencies Normal Mode Rejection between input and Analog Com Provided by low pass filter Common Mode Rejection between inputs and chassis ground Greater than or equal to 75 dB at DC Greater than or...

Page 18: ...perly wired to its power supply 250 maximum loop impedance to meet common mode voltage requirements Terminal Block Removable Allen Bradley spare part Catalog Number 1746 RT25G Description Specificatio...

Page 19: ...nals Current Input maximum 30 mA Time to Detect Open Circuit 1 module scan Input Step Response 1 1 Depends on filter selected Refer to the 1746 NI8 User Manual publication 1746 6 8 Input Resolution 1...

Page 20: ...utomation Inc All rights reserved Printed in Singapore SLC 500 is a trademark of Rockwell Automation Belden is a trademark of Belden Inc Aotewell Ltd www aotewell com Industry Automation HongKong UK C...

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