Allen-Bradley SLC 500 User manual

Publication 1746-IN006A-US-P

Installation Instructions

SLC 500™ Analog Input Module

(Catalog Number 1746-NI8)

Inside…

Important User Information........................................................................... 2

For More Information ......................................................................................3

Hazardous Location 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 Wiring........................................................................................... 10

Input Devices.............................................................................................. 15

Specifications.............................................................................................. 17

@JO"VTQQE@JO"VTQQE ".".

Aotewell Ltd

www.aotewell.com

Industry Automation

HongKong|UK|China

[email protected]

+86-755-8660-6182

http://www.aotewell.com/

2SLC 500™ Analog Input Module

Publication 1746-IN006A-US-P

Important User Information

Because of the variety of uses for the products described in this publication, those

responsible for the application and use of this control equipment must satisfy

themselves that all necessary steps have been taken to assure that each application

and use meets all performance and safety requirements, including any applicable

laws, regulations, codes and standards.

The illustrations, charts, sample programs and layout examples shown in this guide

are intended solely for purposes of example. Since there are many variables and

requirements associated with any particular installation, Allen-Bradley does not

assume responsibility or liability (to include intellectual property liability) for actual

use based upon the examples shown in this 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 important differences between solid-state equipment and

electromechanical devices that should be taken into consideration when applying

products such as those described in this publication.

Reproduction of the contents of this copyrighted publication, in whole or part,

without written permission of Rockwell Automation, is prohibited.

Attention statements help you to:

•identifyahazard

• avoid the hazard

• recognize the consequences

ATTENTION Identifies information about practices or circumstances that

can lead to personal injury or death, property damage, or

economic loss.

IMPORTANT Identifies information that is critical for successful application

and understanding of the product.

@JO"VTQQE@JO"VTQQE ".".

Aotewell Ltd

www.aotewell.com

Industry Automation

HongKong|UK|China

[email protected]

+86-755-8660-6182

http://www.aotewell.com/

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"VTQQE@JO"VTQQE ".".

Aotewell Ltd

www.aotewell.com

Industry Automation

HongKong|UK|China

[email protected]

+86-755-8660-6182

http://www.aotewell.com/

4SLC 500™ Analog Input Module

Publication 1746-IN006A-US-P

Hazardous Location Considerations

This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D or

non-hazardous locations only. The following WARNING statement applies to use

in hazardous locations.

Environnements dangereux

Cet équipement est conçu pour être utilisé dans des environnements de Classe 1,

Division 2, Groupes A, B, C, D ou non dangereux. La mise en garde suivante

s’applique à une utilisation dans des environnements dangereux.

WARNING

WARNING EXPLOSION HAZARD

• Substitution of components 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 switched off.

• All wiring must comply with N.E.C. article 501-4(b).

MISE EN GARDE

DANGER D’EXPLOSION

• La substitution de composants peut rendre cet équipement

impropre à une utilisation en environnement de Classe 1,

Division 2.

• Ne pas remplacer de composants ou déconnecter

l'équipement sans s'être assuré que l'alimentation est

coupée.

• Ne pas connecter ou déconnecter des composants sans

s'être assuré que l'alimentation est coupée.

@JO"VTQQE@JO"VTQQE ".".

Aotewell Ltd

www.aotewell.com

Industry Automation

HongKong|UK|China

[email protected]

+86-755-8660-6182

http://www.aotewell.com/

SLC 500™ Analog Input Module 5

Publication 1746-IN006A-US-P

Electrostatic Damage

Electrostatic discharge can damage semiconductor devices inside this module if you

touch backplane connector pins. Guard against electrostatic damage by observing

the following precautions.

1746-NI8 Power Requirements

The 1746-NI8 module receivesits power through the SLC 500™ chassis backplane

from the fixed or modular +5V dc/+24V dc chassis power supply. The +5V dc

backplane supply powers the SLC circuitry and the +24V dc backplane supply

powers the module analog circuitry. The maximum current drawn by the module is

shown in the table below.

When you 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 Electrostatic discharge can degrade performance or cause

permanent damage. Handle the module as stated below.

• Wear an approved wrist strap grounding device when

handling the module.

• Touch a grounded object to rid yourself of electrostatic charge

before handling the module.

• Handle the module from the front, away from the backplane

connector. Do not touch backplane connector pins.

• Keep the module in its static-shield bag when not in use, or

during shipment.

5V dc Amps 24V dc Amps

200 mA 100 mA

@JO"VTQQE@JO"VTQQE ".".

Aotewell Ltd

www.aotewell.com

Industry Automation

HongKong|UK|China

[email protected]

+86-755-8660-6182

http://www.aotewell.com/

6SLC 500™ Analog Input Module

Publication 1746-IN006A-US-P

Module Location in Chassis

Modular Chassis Considerations

Place your 1746-NI8 module in any slot of an SLC 500 modular, or modular

expansion chassis, except for the extreme leftslot (slot 0)inthe firstchassis. This slot

is reserved for the processor or adapter modules.

Fixed Expansion Chassis Considerations

IMPORTANT For applications using the upper limit of the operating

temperature range, the 1746-NI8 module (or multiple 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) In right most slot of chassis

IMPORTANT The 2-slot, SLC 500 fixed I/O expansion chassis (1746-A2)

supports only specific combinations of modules. If you are using

the 1746-NI8 module in a 2-slot expansion chassis with another

SLC I/O or communication module, refer to the 1746-NI8user

manual to determine whether the combination can be

supported.

@JO"VTQQE@JO"VTQQE ".".

Aotewell Ltd

www.aotewell.com

Industry Automation

HongKong|UK|China

[email protected]

+86-755-8660-6182

http://www.aotewell.com/

SLC 500™ Analog Input Module 7

Publication 1746-IN006A-US-P

Heat and Noise Considerations

Most applications require installation in an industrial enclosure to reduce the effects

of electrical interference. Analog inputs are highly susceptible to electrical noise.

Electrical noise coupled to the analog inputs reduces the performance (accuracy) of

the module.

Group your modules to minimize adverse effects from radiated electrical noise and

heat. Consider the following conditions when selecting a slot for the analog input

module. Position the module:

• in a slot away from sources of electrical noise such as hard-contact switches,

relays, and AC motor drives

• away from modules which generate significant radiated heat, suchas the 32-point

I/O module (series C or earlier)

In addition, route shielded twisted-pair analog 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, if the terminal block is removed, use the write-on

label (shown below) located on the side of the terminal block to identify the module

location and type.

ATTENTION Remove power before removing or inserting this module. When

you remove or insert a module with power applied, an electrical

arc may occur. An electrical arc can cause personal injury or

property damage by:

• sending an erroneous signal to your system’s field devices,

causing unintended machine motion

• causing an explosion in a hazardous environment

Electrical arcing causes excessive wear to contacts on both the

module and its mating connector. Worn contacts may create

electrical resistance.

•

SLOT RACK

MODULE

@JO"VTQQE@JO"VTQQE ".".

Aotewell Ltd

www.aotewell.com

Industry Automation

HongKong|UK|China

[email protected]

+86-755-8660-6182

http://www.aotewell.com/

8SLC 500™ Analog Input Module

Publication 1746-IN006A-US-P

Terminal Block Removal

To remove the terminal block:

1. Loosen the two terminal block release screws.

2. Grasp the terminal block at the top and bottom and pull outward and down.

Switch Settings to Select Voltage or Current Input

Before 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 INPUT

• ON = CURRENT INPUT.

Terminal Block Release

Screws

Maximum Torque =

0.7 to 0.9 Nm(6 to 8 in-lbs)

VOLTAGE

CURRENT

CH7CH0

@JO"VTQQE@JO"VTQQE ".".

Aotewell Ltd

www.aotewell.com

Industry Automation

HongKong|UK|China

[email protected]

+86-755-8660-6182

http://www.aotewell.com/

SLC 500™ Analog Input Module 9

Publication 1746-IN006A-US-P

Module Installation Procedure

1. Align the circuit board of the analog input module with the card guides located at

the top and bottom of the chassis.

2. Slide the module into the chassis until both top and bottom retaining clips are

secured. Apply firm even pressure on the module 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 the top and bottom of the module and slide the module out

of the chassis slot.

2. Cover all unused slots with the Card Slot Filler, catalog number 1746-N2.

Card

Guide

Top and Bottom Module

Release(s)

@JO"VTQQE@JO"VTQQE ".".

Aotewell Ltd

www.aotewell.com

Industry Automation

HongKong|UK|China

[email protected]

+86-755-8660-6182

http://www.aotewell.com/

10 SLC 500™ Analog Input Module

Publication 1746-IN006A-US-P

Terminal Wiring

The 1746-NI8 module contains an 18-position, removable terminal block. The

terminal pin-out is shown below.

erminal Block

ATTENTION Disconnect power to the SLC before attempting to install,

remove, or wire the removable terminal wiring block.

To avoid cracking the 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 (-)

Channel0 (+)

Channel1 (+)

Channel2 (+)

Channel3 (+)

Channel4 (+)

Channel5 (+)

Channel6 (+)

Channel7 (+)

Shield

(Terminal Block Spare Part Catalog Number 1746-RT25G)

Terminal Block Release Screw

Maximum Torque=0.7 to 0.9 Nm

(6 to 8 in-lbs.)

@JO"VTQQE@JO"VTQQE ".".

Aotewell Ltd

www.aotewell.com

Industry Automation

HongKong|UK|China

[email protected]

+86-755-8660-6182

http://www.aotewell.com/

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