Rockwell Automation 1771-IAD User Manual

Download

Installation Instructions

AC/DC (120V) Input Module

(Cat. No. 1771-IAD Series D)

Contents

Important User Information

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

To See page

Important User Information 1 Prevent Electrostatic Discharge 3 Important Preinstallation Considerations 4 Calculate Power Requirements 4 Setting the Delay Time Jumper 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

Interpret the Status Indicators 9 Troubleshooting 9 Hazardous Location 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 1771ĆIN023B-EN-P - August 2002

AC/DC (120V) 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.

Publication 1771ĆIN023B-EN-P - August 2002

AC/DC (120V) 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.

Publication 1771ĆIN023B-EN-P - August 2002

AC/DC (120V) Input Module4

Prevent Electrostatic Damage

Important PreĆinstallation Considerations

The ac/dc input module is shipped in static-shielded packaging to guard against electrostatic discharge damage. Observe the following precautions when handling the module.

Electrostatic Discharge Damage

ATTENTIO

Electrostatic discharge can damage integrated circuits or semiconductors if you touch backplane connector pins. Follow these guidelines when you handle the module:

• Touch a grounded object to discharge static

potential

• Wear an approved wrist-strap grounding device

• Do not touch the backplane connector or

connector pins

• Do not touch circuit components inside the mod-

ule

• If available, use a static-safe work station

• When not in use, keep the module in its original

static-shielded packaging

The 1771-IAD Series D module is compatible with all chassis except the 1771-A1, 1771-A2 and 1771-A4 chassis. Make sure no other input module or single card block transfer module is placed in the same module group when using 2-slot addressing. Any discrete output module may be used within the same module group.

Calculate Power Requirements

Your module receives its power through the 1771 I/O chassis backplane from the chassis power supply. The module requires 195mA from the output of this supply. Add this to the requirements of all other modules in the I/O chassis to prevent overloading the chassis backplane and/or chassis power supply.

Publication 1771ĆIN023B-EN-P - August 2002

AC/DC (120V) Input Module 5

Setting the Delay Time Jumper

Your module is equipped with an adjustable delay time jumper. Use the jumper to select between two input channel delay times. The delay time you choose applies to all sixteen of the module’s channels.

Use this delay time: If you want:

5ms to detect typical input readings

20ms to prevent detection of false inputs in highĆnoise environments

The module is shipped with the delay time jumper preset to 5ms. To change the delay time jumper to 20ms, do the following:

1. Locate the delay time jumper selection plug at the top-right edge of the module circuit board, as shown in the following figure.

TopĆright edge of circuit board

20ms 5ms

Delay Time Jumper (shown in preset 5ms position)

2. Use your finger to slide the jumper off the 5ms position (the

3. Carefully reposition the jumper by sliding it onto the 20ms

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.

middle post and the right post).

position (the middle post and the left post).

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 10 and 12

- between 14 and 16

Upper Connector

11022ĆI

Publication 1771ĆIN023B-EN-P - August 2002

AC/DC (120V) Input Module6

Install the Module and

ATTENTIO

Field Wiring Arm

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 or degradation of performance

• injury or equipment damage due to possible

unexpected operation

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 (1771ĆWH) 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.

1771ĆWH

WARNING

The 1771–IAD 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, proper installation and grounding requirements. Limit the maximum adjacent slot power dissipation to 17W maximum.

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

Publication 1771ĆIN023B-EN-P - August 2002

AC/DC (120V) Input Module 7

Connect Wiring to the Field Wiring Arm

Connect your I/O devices to the field wiring arm (cat. no. 1771-WH) shipped with the module.

1. Connect one terminal of your 2-wire input device to terminals 00 thru 17. Connect L1 (high) ac/dc line to the other terminal of your input devices.

2. Connect terminal E to the L2 (low) ac/dc return. Terminals A thru D are not used. Use stranded 14 gauge wire to minimize the voltage drop over long cable distances.

ac/dc High

Terminal A Terminal B Terminal C

Terminal D

Input 00 Input 01 Input 02 Input 03 Input 04 Input 05 Input 06 Input 07 Input 10 Input 11 Input 12 Input 13 Input 14

Input 15 Input 16 Input 17

Terminal E

A B C

D 00 01 02 03 04 05 06 07 10 11 12

13 14 15 16 17

ac/dc Low

Field Wiring Arm

Cat. No. 1771ĆWH

(Actual wiring runs in this direction.)

10589ĆI

You can use an AC (120V) Output Module (cat.

IMPORTAN

no. 1771-OAD) to directly drive terminals on an AC/DC (120V) Input Module (cat. no. 1771-IAD) as shown below.

Publication 1771ĆIN023B-EN-P - August 2002

AC/DC (120V) Input Module8

You can also use a 1771-OA output module to drive an AC/DC (120V) input module (cat. no. 1771-IAD) but you must connect one of the following between the output terminal and L2 (common).

• 2500 ohm, 10W resistor

• RG-1676-1 Electrocube (San Gabriel, California)

Use the same ac power source to power both modules to ensure proper phasing and prevent module damage. All inputs to the 1771–IAD module must be powered by the same phase of the ac source.

An Output Module Driving an Input Module

AC (12Ć120V) Output Module

(Cat. No. 1771ĆOAD)

120V ac High

AC/DC (120V) Input Module

(Cat. No. 1771ĆIAD)

AC (120V) Output Module

(Cat. No. 1771ĆOA)

AC/DC (120V) Input Module

(Cat. No. 1771ĆIAD)

ac High

2500 ohm 10W

resistor

ac Low

Note: 1771ĆOAD output voltage range is 12Ć138V ac. However, the onĆstate voltage range of the 1771ĆIAD is 79Ć138V ac.

Publication 1771ĆIN023B-EN-P - August 2002

10590ĆI

Note: 1771ĆOA output voltage range is 92Ć138V ac. However, the onĆstate voltage range of the 1771ĆIAD is 79Ć138V ac.

ac Low

AC/DC (120V) Input Module 9

Interpreting the Status Indicators

The front panel of your module contains one green module active indicator, and 16 red status indicators as shown below.

Module Active

ACTIVE

00 01

15 16

06 07

Indicator (green)

00 to 17

Status Indicators

(red)

10592ĆI

When the green module active indicator lights, the rack power supply has properly established 5Vdc. ,The module active indicator must be lit to properly interpret the red status indicators.

The red status indicators are provided for system logic side indication of individual inputs. When a red indicator lights, voltage is present on the terminal. The module transfers this information to the backplane for the processor to read. See ‘‘Troubleshooting” for a description, probable cause, and recommended action to take for common faults based on indicator responses.

Troubleshooting

Indicator Status (color) Description of Fault or System Status Action to Take

Module active ON (green) Normal Indication None

Module active ON (green) and Input status ON (red)

Module active ON (green) and Input status OFF

Module active OFF and Input status ON (red) or OFF

Use this table to help you interpret the 1771-IAD status indicators and to troubleshoot module and system faults.

Check for voltage on terminal. If voltage is present, take no action. If no

Input devices not functioning properly or faulty input circuitry on module.

No voltage on terminal. None

Not valid unless module active indicator is on; when active is off, indicators do not represent processor status.

voltage is present, replace the module.

1. Check input devices.

2. If input devices are OK, replace module.

1. Check chassis power supply and module input power.

2. If power supplies are OK, replace module.

Publication 1771ĆIN023B-EN-P - August 2002

AC/DC (120V) Input Module10

Hazardous Locations

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.

Le sigle CSA est la marque déposée de l'Associationdes Standards pour le Canada.

PLC est une marque déposée de AllenĆBradley Company, Inc. CSA logo is a registered trademark of theCanadian Standards Association PLC is a registered trademark of AllenĆBradley Company, Inc.

Publication 1771ĆIN023B-EN-P - August 2002

AC/DC (120V) Input Module 11

Specifications

Inputs per Module 16

Module Location 1771 Series B or later I/O chassis, 1771ĆAM1, ĆAM2 chassis

Nominal Input Voltage 120V ac @ 50/60Hz; 125V dc

Nominal Input Current 9.9mA @ 120V ac 60Hz;

8.7mA @ 120V ac 50Hz;

2.56mA @ 125V dc

OnĆstate Voltage Range 79V to 138V ac or dc

Minimum OnĆstate Current 5.95mA @ 79V ac 60Hz; 1.5mA @ 79V dc

Maximum OffĆstate Voltage 43V ac or dc

Maximum OffĆstate Current 3.0mA @ 43V ac 60Hz; 0.8mA @ 43V dc

Input Impedance 11.2K ohms @ 60Hz (0.18 microfarad in parallel with 47K ohms,

in series with 820 ohms)

Peak Inrush Current Inrush = VPS/820 ohm, where VPS= customer supply peak voltage

Input Signal Delay Off to On

On to Off

5ms (+3ms) or 20ms (+5ms) @ 120V ac 60Hz selectable

.1ms) or 10ms (+1ms) @ 120V dc selectable

3ms (+ 25ms (+

5ms) @ 120V ac or dc

Power Dissipation 8.8 Watts (max.), 1.0 Watts (min.)

Thermal Dissipation 30.1 BTU/hr (max.), 3.42 BTU/hr (min.)

Maximum Adjacent Slot Power

17W

Dissipation

Backplane Current 195mA @ 5V

Isolation Voltage Tested to 2500V dc for 1s

Environmental Conditions

Operating Temperature

IEC 60068-2-1 (Test Ad, Operating Cold) IEC 60068-2-2 (Test Bd, Operating Dry Heat) IEC 60068-2-14 (Test Nb, Operating Thermal Shock) 32 to 131°F(0

to 60oC)

Storage Temperature IEC 60068-2-1 (Test Ab, Unpackaged, Nonoperating Cold)

IEC 60068-2-2 (Test Bb, Unpackaged, Nonoperating Dry Heat) IEC 60068-2-14 (Test Na, Unpackaged, Nonoperating Thermal Shock)

-40 to 185°F (-40 to 85

Relative Humidity IEC 60068-2-30 (Test Db, Unpackaged, Nonoperating Damp Heat)

5 to 95%, noncondensing

Enclosure Type Rating None (open-style)

Keying Between 10 and 12

Between 14 and 16

Field Wiring Arm 1771ĆWH

Wiring Arm Screw Torque 9 pound-inches (1.0Nm)

Specifications continued on next page.

Publication 1771ĆIN023B-EN-P - August 2002

AC/DC (120V) Input Module12

Conductors Wire Size

Rockwell Automation 1771-IAD User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual