Rockwell Automation 1771-OQ16C User Manual

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Installation Instructions

DC (24V) Isolated Output Module

(Catalog Number 1771–OQ16 Series C)

To the Installer

Important User Information

This document provides information on:

For information on: See page

Important User Information 1

Preinstallation Considerations 4

Calculate Power Requirements 4 Determine Module Placement in the Chassis 4

Key the Backplane Connector 5

Install the Module and Field Wiring Arm 6

Connect Wiring to the Output Module 7

Replacing the Fuse 11

For this reference information See page

Intepreting the Status Indicators 10 Hazardous Location Approval 12 Specifications 13

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.

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DC (24V) Isolated Output Module2

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.

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

IMPORTAN

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 (24V) Isolated Output 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 (24V) Isolated Output Module4

PreĆinstallation Considerations

ATTENTION

This module is designed to operate with dc relays and other dc output devices.

This module can be used in all 1771 I/O chassis except 1771-A1, A2 and A4 chassis. It can also be used in the 1771-AM1 and -AM2 chassis.

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.

Calculate Power Requirements

Determine Module Placement in the Chassis

This module is not compatible with the 1771-AL local I/O adapter.

The isolated output module is powered by the power supply connected to the I/O chassis backplane. The module requires a maximum current of 400mA from the +5V dc output of this supply. Total the current requirements of this module with the other modules in the I/O chassis to avoid overloading the supply or the I/O chassis backplane.

Group your modules to minimize adverse effects from radiated electrical noise and/or heat. We recommend the following:

• Group analog input and low voltage dc modules away from ac

modules or high voltage dc modules to minimize electrical noise interface.

• Place analog input modules and other I/O modules sensitive to

heat away from slot power supplies to minimize adverse heat effects.

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DC (24V) Isolated Output Module 5

Key the Backplane

ATTENTION

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.

A module inserted into a wrong slot could be damaged by improper voltages connected through the wiring arm. Use keying bands to prevent damage to the module.

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

I/O chassis

Place the keying bands:

- between 22 and 24

- between 32 and 34

Upper Connector

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

11022ĆI

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DC (24V) Isolated Output Module6

Install the Module and Field Wiring Arm

1771ĆA1B, ĆA2B, ĆA3B, ĆA3B1, ĆA4B I/O chassis

locking tab

WARNING

ATTENTION

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.

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.

1771ĆA1B, ĆA2B, ĆA3B1, ĆA4B Series B I/O chassis

locking bar pin

locking bar

card guides

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

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.

The 1771–OQ16 series C 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 10W maximum.

module

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

horizontal bar

remove

install

card guides

module

19809

wiring arm

1771ĆWN

17643

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Connect Wiring to the Output Module

DC (24V) Isolated Output Module 7

Make wiring connections to terminals on the field wiring arm (cat. no. 1771-WN) shipped with the module.

Attach the wiring arm to the pivot bar on 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.

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 position.

3. Make connections to the field wiring arm as shown in the

connection diagram below. (Use the label on the front of the wiring arm to identify your wiring.)

ATTENTION

The field wiring arm terminal identification number is not the same as the number of the bit which controls that output. You should identify the labels on the wiring arm with the name or number of the device connected at each terminal.

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DC (24V) Isolated Output Module8

Connection Diagram for the 1771–OQ16 Series C Isolated Output Module

Alternate

Load

Location

Load

+dc-0 +dc-1

+dc-2

+dc-3 Not Used

+dc-4

+dc-5

+dc-6

+dc-7 Not used

+dc-10

+dc -11

+dc-12 +dc-13

Not used

+dc-14

+dc-15

+dc-16

+dc-17

Not used

Output 0

Output 1

Output 2

Output 3

Not used Output 4 Output 5

Output 6

Output 7

Not used Output 10

Output 11

Output 12

Output 13 Not used

Output 14

Output 15

Output 16

Output 17

Not used

Load

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(Actual wiring runs in this direction.)

dc Returndc High

ATTENTION

24V dc Supply

Use copper wires suitable for 35oC above surrounding ambient.

Note: A shorting bar can be used to connect the commons if no

channel-to-channel isolation is required.

You should identify the labels on the wiring arm with the name or number of the device connected at each terminal.

10565-I

DC (24V) Isolated Output Module 9

You can use an output of the 1771-OQ16 module to drive an input of a dc input module (1771-IQ16) to indicate status, such as the turning on of a motor starter (see below).

Driving an Input with an Output

DC (24V) Isolated Output Module

(Cat. No. 1771ĆOQ16)

+dc-0 +dc-1

+dc-2 +dc-3 Not Used +dc-4 +dc-5 +dc-6 +dc-7

Not used

+dc-10 +dc -11

+dc-12 +dc-13 Not used +dc-14

+dc-15 +dc-16 +dc-17

Not used

Output 0 Output 1 Output 2 Output 3

Not used

Output 4 Output 5 Output 6 Output 7

Not used

Output 10

Output 11

Output 12

Output 13 Not used

Output 14

Output 15

Output 16 Output 17

Not used

DC (24V) Isolated Input Module

(Cat. No. 1771ĆIQ16)

Gnd - 0 Gnd - 1

Gnd - 2 Gnd - 3

Not Used

Gnd - 4

Gnd - 5 Gnd - 6 Gnd - 7 Not used Gnd - 10 Gnd - 11

Gnd - 12 Gnd - 13 Not used

Gnd - 14 Gnd - 15 Gnd - 16 Gnd - 17 Not used

Input 0 Input 1 Input 2 Input 3 Not used Input 4 Input 5 Input 6 Input 7 Not used Input 10 Input 11 Input 12 Input 13 Not used Input 14 Input 15 Input 16 Input 17

Not used

(Actual wiring runs in this direction.)

24V dc Supply

dc Returndc High

ATTENTION

10566-I

Use copper wires suitable for 35oC above surrounding ambient.

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DC (24V) Isolated Output Module10

Interpreting the Status Indicators

The module has 18 indicators, consisting of 16 output status indicators, an active indicator and a fuse blown indicator. The 16 status indicators will light when an ”on” signal has been communicated between the module and the system backplane.

Status Indicators

Output State Indicators

(red)

The ACTIVE indicator will light when the module has started up and successfully initialized. The FUSE blown indicator will light when the fuse has cleared or been removed and the channel associated with that fuse has been turned ”on.” The fuse-blown circuit will not operate if the applied voltage to that channel is above the specified minimum ”on-state” voltage, and the output load current is less than or equal to 5mA. The FUSE blown indicator will reset after the fuse has been replaced and chassis power has been cycled.

ACTIVE

00 01 02 03 04 05 06 07

FUSE

10 11 12 13 14 15 16 17

Fuse Blown Indicator

(red)

10567-I

ACTIVE Indicator (green)

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DC (24V) Isolated Output Module 11

Replacing a Fuse

Each module output is individually fused. You can easily access the module fuses through the access hole provided in the component side cover. Follow the procedure below.

ATTENTION

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

• Failure to remove power from the backplane

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

• Failure to remove power from the backplane or

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

If a blown fuse occurs:

1. Turn off power to the I/O chassis backplane.

2. Pivot the wiring arm away from the module and pull the module

from the I/O chassis.

3. Use a small common screwdriver to reach through the front of the

module and carefully pry one end of the fuse out of its holder.

Reach through hole in side cover and twist and pull to remove fuse.

4. Reach through the access hole on the side of the module and

5. Reinstall the module in the I/O chassis.

6. Reposition the wiring arm.

7. Restart system power.

Pry up on one end of the fuse to remove it from the holder.

18532

carefully twist and pull to remove the blown fuse. Replace it with a 3A 2AG fast-acting fuse (Littelfuse part number 225003).

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DC (24V) Isolated Output Module12

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 (24V) Isolated Output Module 13

Specifications

Outputs per Module 16

Module Location 1771ĆA1B thru Ć A1B or later I/O Chassis

Voltage Rating 10 to 32V dc

Maximum Output Current 2.0A per output; 32.0A maximum per module at 0-45oC;

Derate linearly to 1.5A per output, 24A maximum per module at 60 See derating curve.

Minimum Output Current 5mA

OnĆstate Voltage Drop (maximum) 0.34A per output at 2A

OffĆstate Leakage Current

0.5mA per output @ 32V dc, 25oC

(maximum) Surge Current (maximum) 4A for 10ms per output., repeatable every 2 sec.

Power Rating 0.68W per output (maximum) @ 2A

Output Signal Delay Off to On

On to Off

100μs (max);

300μs (max) Power Dissipation 13.0 Watts (max); 2.0 Watts (min)

Thermal Dissipation 44.3 BTU/hr (max); 6.8 BTU/hr (min)

Adjacent Slot Power Dissipation 10.0 Watts

Backplane Current 400mA maximum

Isolation Voltage Tested for 1s at 1500V channelĆtoĆchannel,

1500V channel to backplane Maximum Cable Length 1000 ft (304.8 m)

Conductors Wire Size

Rockwell Automation 1771-OQ16C User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual