Rockwell Automation 1771-IVN User Manual

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Installation Instructions

DC (10-30V) Input Module

Cat. No. 1771-IVN Series C

Contents

Important User Information

Use this document as a guide when installing the catalog number 1771-IVN series C input module.

To See page

Important User Information 1 Important Preinstallation Considerations 4

Calculate Power Requirements 5 Key the Backplane Connector 5

Install the Module and Field Wiring Arm 6

Connect Wiring to the Field Wiring Arm 7

For this reference information See page

Intepreting the Status Indicators 10 Harzardous Locations 10 Specifications 11

Because of the variety of uses for the products described in this publication, those responsible for the application and use of these products 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. In no event will Rockwell Automation be responsible or liable for indirect or consequential damage resulting from the use or application of these products.

Any illustrations, charts, sample programs, and layout examples shown in this publication are intended solely for purposes of example. Since there are many variables and requirements associated with any particular installation, Rockwell Automation 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 Application, Installation, and Maintenance of Solid–State Control (available from your local Rockwell Automation 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.

Publication 1771-IN035B-EN-P - July 2002

DC (10–30V) Input Module2

Reproduction of the contents of this copyrighted publication, in whole or part, without written permission of Rockwell Automation, is prohibited.

Throughout this publication, notes may be used to make you aware of safety considerations. The following annotations and their accompanying statements help you to identify a potential hazard. avoid a potential hazard, and recognize the consequences of a potential hazard.

WARNING

ATTENTION

IMPORTANT

Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss.

Identifies information about practices or circumstances that may lead to personal injury or death, property damage, or economic loss.

Identifies information that is critical for successful application and understanding of the product.

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DC (10–30V) Input Module 3

ATTENTION

Environment and Enclosure

This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category II applications (as defined in IEC publication 60664–1), at altitudes up to 2000 meters without derating.

This equipment is considered Group 1, Class A industrial equipment according to IEC/CISPR Publication 11. Without appropriate precautions, there may be potential difficulties ensuring electromagnetic compatibility in other environments due to conducted as well as radiated disturbance.

This equipment is supplied as “open type” equipment. It must be mounted within an enclosure that is suitably designed for those specific environmental conditions that will be present, and appropriately designed to prevent personal injury resulting from accessibility to live parts. The interior of the enclosure must be accessible only by the use of a tool. Subsequent sections of this publication may contain additional information regarding specific enclosure type ratings that are required to comply with certain product safety certifications.

See NEMA Standards publication 250 and IEC publication 60529, as applicable, for explanations of the degrees of protection provided by different types of enclosures. Also, see the appropriate sections in this publication, as well as the Allen–Bradley publication 1770–4.1, (“Industrial Automation Wiring and Grounding Guidelines”), for additional installation requirements pertaining to this equipment.

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DC (10–30V) Input Module4

Important PreĆinstallation Considerations

ATTENTION

Preventing Electrostatic Discharge

This equipment is sensitive to electrostatic discharge, which can cause internal damage and affect normal operation. Follow these guidelines when you handle this equipment:

• Touch a grounded object to discharge potential

static.

• Wear an approved grounding wriststrap.

• Do not touch connectors or pins on component

boards.

• Do not touch circuit components inside the

equipment.

• If available, use a static–safe workstation.

• When not in use, keep modules in appropriate

static–safe packaging.

The 1771-IVN Series C dc input module is a source input and requires a sink output. A source input provides a positive voltage path and a sink output provides a path to ground.

You must use this module in a Series B or later 1771 I/O chassis. Refer to the table below for processor compatibility.

Processor Compatibility Chart

System Type Use with Processors:

Local

Remote (with a 1771ĆASB remote I/O adapter)

WARNING

Do not place this module in the same I/O chassis as the 1771-IX thermocouple module. You can use this module in the same chassis as the 1771-IXE thermocouple module. You can use this module in the same chassis as the 1771–IXE thermocouple module.

MiniĆPLCĆ2/02®(cat. no. 1772ĆLZ, ĆLZP) MiniĆPLCĆ2/16 (cat. no. 1772ĆLX, ĆLXP) MiniĆPLCĆ2/17 (cat. no. 1772ĆLW, ĆLWP) PLCĆ5/15

PLCĆ2/20®(cat. no. 1772ĆLP2) PLCĆ2/30 (cat. no. 1772ĆLP3) PLCĆ3®(cat. no. 1775ĆL1, ĆL2, ĆL3, ĆL4) PLCĆ3/10 (cat. no. 1775ĆLP4, ĆLP8) PLCĆ5/15, Series B and later (cat. no. 1785ĆLT)

When used in a Class I, Division 2, hazardous location, this equipment must be mounted in a suitable enclosure with proper wiring method that complies with the governing electrical codes.

, Series B and later (cat. no. 1785ĆLT)

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DC (10–30V) Input Module 5

This module has input filtering to limit the effect of voltage transients caused by contact bounce and/or electrical noise. Specifications for input filtering are listed in the specifications at the end of this document.

Calculate Power Supply Requirements

Your module receives its power for internal logic circuitry through the 1771 I/O chassis backplane from the chassis power supply. The module requires 280mA from the output of this supply. To calculate the requirements for the backplane power supply, add 280mA to the power requirements of all other modules in the I/O chassis. Calculating the requirements will prevent an overload to the chassis backplane and/or backplane power supply.

Key the Backplane Connector

Place your module in any slot in the chassis except the leftmost slot which is reserved for processors or adapters.

ATTENTION

Observe the following precautions when inserting or removing keys:

• insert or remove keys with

your fingers

• make sure that key placement

is correct

Incorrect keying or the use of a tool can result in damage to the backplane connector and possible system faults.

Position the keying bands in the backplane connectors to correspond to the key slots on the module.

I/O chassis

You can change the position of these bands if subsequent system design and rewiring makes insertion of a different type of module necessary.

Place the keying bands:

between 14 and 16 between 30 and 32

Upper Connector

11022ĆI

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DC (10–30V) Input Module6

Install the Module and

ATTENTION

Field Wiring Arm

WARNING

Place the module in the card guides on the top and bottom of the chassis

that guide the module into position.

Important: Apply firm even pressure on the module to seat it into its

backplane connector.

1771ĆA1B, ĆA2B, ĆA3B, ĆA4B I/O chassis

Snap the chassis latch over the top of the module to secure it.

Remove power from the 1771 I/O chassis backplane before you install the module. Failure to remove power from the backplane could cause:

• module damage

• degradation of performance

• injury or equipment damage due to possible

unexpected operation

When you insert or remove the module with power applied, or connect or disconnect the field wiring arm with field side power applied, an electrical arc can occur. This could cause an explosion in hazardous location installations.

Be sure that power is removed or the area is nonhazardous before proceeding.

1771ĆA1B, ĆA2B, ĆA4B Series B I/O chassis

Swing the chassis locking bar down into place to secure the modules. Make sure the locking pins engage.

Attach the wiring arm (1771ĆWN) to the horizontal bar at the

bottom of the I/O chassis.

The wiring arm pivots upward and connects with the module so you can install or remove the module without disconnecting the wires.

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1771ĆWN

The 1771–IVN module is a modular component of the 1771 I/O system requiring a properly installed system chassis. Refer to publication 1771–IN075 for detailed information on acceptable chassis and proper installation and grounding requirements. Limit the maximum adjacent slot power dissipation to 10W maximum.

DC (10–30V) Input Module 7

Connecting Wiring to the Field Wiring Arm

You make connections to the module through the field wiring arm cat. no. 1771-WN. The arm pivots on the I/O chassis to connect with terminals on the front of the module and acts as a terminal strip. The wiring arm allows the module to be removed from the chassis without disconnecting wiring.

WARNING

ATTENTION

When you connect or disconnect the field wiring arm with field power applied, or you insert or remove the module while backplane power is on, an electrical arc can occur. This could cause an explosion in hazardous location installations.

Be sure that power is removed or the area is nonhazardous before proceeding.

Remove power from the 1771 I/O chassis backplane and field wiring arm before removing or installing an I/O module.

• Failure to remove power from the backplane or

wiring arm could cause module damage, degradation of performance, or injury.

• Failure to remove power from the backplane

could cause injury or equipment damage due to possible unexpected operation.

1. Make certain all power is removed from the module before making wiring connections.

2. Swing the wiring arm up into position on the front of the module. The locking tab on the module will secure it into place.

3. Make your connections to the field wiring arm as shown in the connection diagram. (Use the label on the front of the wiring arm to identify your wiring.)

The field wiring arm terminal identification

IMPORTANT

number is not the same as the number of the bit which controls that output.

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DC (10–30V) Input Module8

I/O Module Groups

Each module condenses two full module groups (32 inputs) into each I/O chassis slot. For example:

• Module group 1 = inputs 00 through 17

• Module group 2 = inputs 00 through 17 (module group 2

represents the second set of inputs).

In the figure below, terminals 1 through 20 represent module group 1, with terminals 9, 10, 19 and 20 dc common. Terminals 21 through 40 represent module group 2, with terminals 29, 30, 39 and 40 dc common.

Connection Diagram for the 1771-IVN dc Input Module

(See applicable codes and laws.)

2-Wire

Devices

3-Wire

Devices

Supply

–

Supply

–

10-30V dc

Input 01

–

Input 03

Input 05 Input 07

10-30V dc

–

Input 11

Input 13

Input 15

Input 17

10-30V dc Input 01

Input 03

Input 05 Input 07

10-30V dc

Input 11

Input 13 Input 15

Input 17

10-30V dc

Input 00 Input 02

Input 04

Input 06

10-30V dc

Input 10

Input 12

Input 14 Input 16

10-30V dc

Input 00

Input 02 Input 04

Input 06

10-30V dc Input 10

Input 12

Input 14

Input 16

If multiple power sources are used, do not exceed the specified isolation voltage.

Publication 1771-IN035B-EN-P - July 2002

Note: Terminals on the left are even numĆ bered (2 thru 40) , and terminals on the right are odd numbered (1 thru 39).

(Actual wiring runs in this direction.)

10433-I

DC (10–30V) Input Module 9

ATTENTIO

Observe proper polarity with dc power connections. Reverse polarity, or application of ac voltage could damage the module.

Table A

Module Input Terminal Assignments

Terminal

Number

02 10 to 30V dc - 22 10 to 30V dc -

03 Input 00 1RG00 23 Input 00 1RG00

04 Input 01 1RG01 24 Input 01 1RG01

05 Input 02 1RG02 25 Input 02 1RG02

06 Input 03 1RG03 26 Input 03 1RG03

07 Input 04 1RG04 27 Input 04 1RG04

08 Input 05 1RG05 28 Input 05 1RG05

Input Assignment I/O program address

10 to 30V dc - 21

Terminal

Number

Input Assignment I/O program address

10 to 30V dc -

09 Input 06 1RG06 29 Input 06 1RG06

10 Input 07 1RG07 30 Input 07 1RG07

12 10 to 30V dc - 32 10 to 30V dc -

13 Input 10 1RG10 33 Input 10 1RG10

14 Input 11 1RG11 34 Input 11 1RG11

15 Input 12 1RG12 35 Input 12 1RG12

16 Input 13 1RG13 36 Input 13 1RG13

17 Input 14 1RG14 37 Input 14 1RG14

18 Input 15 1RG15 38 Input 15 1RG15

19 Input 16 1RG16 39 Input 16 1RG16

20 Input 17 1RG17 40 Input 17 1RG17

Where: R = rack number (1, 2, 3, etc.)

You can connect a different power supply to each pair of 10-30V dc terminals (01/02, 11/12, 21/22, 31/32). Each pair of terminals is independent of the others.

Terminals 01/02 supply terminals 03 thru 10; 11/12 for 13 thru 20; 21/22 for 23 thru 30; and 31/32 for 33 thru 40.

10 to 30V dc - 31

G = I/O group (0 - 7)

10 to 30V dc -

If multiple power sources are used, do not exceed the specified isolation voltage.

Publication 1771-IN035B-EN-P - July 2002

DC (10–30V) Input Module10

Interpreting the Status Indicators

The module has 32 status indicators on the module front plate. These represent the control status of the inputs. Each indicator is lit when voltage is present at the corresponding input.

These indicators may flicker (momentarily light up) when the chassis in which the module resides is first powered up. This flicker is normal, and in no way affects the control parameters of the system.

Status Indicators (red)

11888ĆI

The following information applies when operating this equipment in hazardous locations:

Products marked CL I, DIV 2, GP A, B, C, D" are suitable for use in Class I Division 2 Groups A, B, C, and D Hazardous Locations and nonhazardous locations only. Each product is supplied with markings on the rating nameplate indicating the hazardous location temperature code. When combining products within a system, the most adverse temperature code (lowest T" number) may be used to help determine the overall temperature code of the system. Combinations of equipment in your system are subject to investigation by the local Authority Having Jurisdiction at the time of installation.

WARNING

EXPLOSION HAZARD -

• Do not disconnect equipment unless power has been removed or the area is known to be nonhazardous.

• Do not disconnect connections to this equipment unless power has been removed or the area is known to

be nonhazardous. Secure any external connections that mate to this equipment by using screws, sliding latches, threaded connectors, or other means provided with this product.

• Substitution of components may impair suitability for Class I, Division 2.

• If this product contains batteries, they must only be changed in an area known to be nonhazardous.

Informations sur l'utilisation de cet équipement en environnements dangereux:

Les produits marqués CL I, DIV 2, GP A, B, C, D ne conviennent que une utilisation en environnements de Classe I Division 2 Groupes A, B, C, D dangereux et non dangereux. Chaque produit est livré avec des marquages sur sa plaque d'identification qui indiquent le code de température pour les environnements dangereux. Lorsque plusieurs produits sont combinés dans un systéme, le code de température le plus défavorable (code de température le plus faible) peut eatre utilisé pour déterminer le code de température global du systéme. Les combinaisons d'equipements dans le systéme sont sujettes à inspection par les autorités locales qualifiées au moment de l'installation.

AVERTISSEMENT

RISQUE D'EXPLOSION -

• Couper le courant ou s'assurer que l'environnement est classé non dangereux avant de débrancher

l'équipement.

• Couper le courant ou s'assurer que l'environnement est classé non dangereux avant de débrancher les

connecteurs. Fixer tous les connecteurs externes reliés à cet équipement à l'aide de vis, loquets

coulissants, connecteurs filetés ou autres moyens fournis avec ce produit.

• La substitution de composants peut rendre cet équipement inadapté à une utilisation en environnement de

Classe 1, Division 2.

• S'assurer que l'environnement est classé non dangereux avant de changer les piles.

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DC (10–30V) Input Module 11

Specifications

Inputs per module 32

Module Location 1771ĆA1B thru ĆA4B or later I/O Chassis

Input Voltage Range 10 to 30V dc

Nominal Input Current 4.7mA @ 10V; 15.6mA @ 30V

Minimum OffĆstate Current 1.7mA @ 5V dc

Maximum OffĆstate Voltage 5V dc

Minimum OnĆstate Voltage 10V dc

Input Signal Delay Low to high propagation: 6ms(+2ms)

High to low propagation: 6ms(+2ms)

Power Dissipation 15W (max); 1.5W (min)

Thermal Dissipation 51.2 BTU/hr (max); 5.1 BTU/hr (min)

Backplane Current 280mA @ 5V dc maximum

Isolation Voltage Tested to withstand 500V for 60s.

Conductors Wire Size

Rockwell Automation 1771-IVN User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual