Rockwell Automation 1771-OVN User Manual

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Page 1

Installation Instructions

DC (10-30V) Output Module

Cat. No. 1771–OVN Series B

To The Installer

Important User Information

This document provides information on:

See page

Important User Information 1

Preinstallation Considerations 4

Calculate Power Requirements 4 Initial Handling 5

Key the I/O Chassis 5

Install the Module and Field Wiring Arm 6

Connect Wiring to the Field Wiring Arm 7

Replacing the Fuse 10

For this reference information See page

Intepreting the Status Indicators 10 Hazardous Location Approval 11 Specifications 12

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 (10–30V) 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

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) 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 (10–30V) Output Module4

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

Calculate Power Supply Requirements

You must use this module in a 1771-A1B, -A2B, -A3B, -A3B1,

-A4B or later 1771 I/O chassis. Refer to the table below for processor compatibility.

Table A Processor Compatibility Chart

System Type Use with Processors:

Local MiniĆPLCĆ2/02 (cat. no. 1772ĆLZ, ĆLZP)

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

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.

The controller or I/O chassis power supply, connected through the backplane of the I/O chassis, powers the logic circuitry of the output modules. The maximum current drawn from this supply is 330mA.

MiniĆPLCĆ2/16 (cat. no. 1772ĆLX, ĆLXP) MiniĆPLCĆ2/17 (cat. no. 1772ĆLW, ĆLWP) PLCĆ5/15, Series B and later (cat. no. 1785ĆLT)

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)

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DC (10–30V) Output Module 5

Initial Handling

ATTENTION

Procedures

Keying the I/O Chassis

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:

ATTENTION

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.

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.

Place the keying bands:

- between 14 and 16

- between 32 and 34

• 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.

I/O chassis

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.

The 1771–OVN 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.

11022ĆI

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DC (10–30V) Output Module6

Install the Module and Field Wiring Arm

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

locking tab

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

card guides

ATTENTION

module

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

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

locking bar

card guides

module

19809

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.

horizontal bar

WARNING

wiring arm

1771ĆWN

remove

install

17643

If 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.

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Connect Wiring to the Module

WARNING

DC (10–30V) Output Module 7

When 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.

ATTENTION

Make wiring 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.

ATTENTION

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.

The field wiring arm terminal identification number is not the same as the number of the bit which controls that output.

I/O Module Groups

Each module condenses two full module groups (32 outputs) 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 outputs).

Terminals 1 through 20 represent module group 1. Terminals 21 through 40 represent module group 2. Terminals 10, 20, 30 and 40 are DC common and terminals 1, 11, 21 and 31 are DC power.

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DC (10–30V) Output Module8

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

Terminals 1 through 20 represent module group 1. Terminals 21 through 40 represent module group 2. Terminals 10, 20, 30 and 40 are dc common and terminals 1, 11, 21, and 31 are dc power.

Connection Diagram for the 1771ĆOVN/B DC Output Module

Output 0 Output 2

Output 4 Output 6 Common 0

Output 10

Output 12

Output 14

Output 16

Common 1

Output 0

Output 2

Output 4

Output 6 Common 2 Output 10

Output 12

Output 14

Output 16

Common 3

+dc

Output 1

Output 3

Output 5

Output 7

+dc

Output 11 Output 13

Output 15 Output 17

+dc Output 1

Output 3

Output 5

Output 7 +dc

Output 11

Output 13

Output 15

Output 17

dc Output

Device

Supply

Publication 1771-IN036C-EN-P - July 2002

Actual wiring runs in this direction.

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

ATTENTION

Observe proper polarity, as indicated in the connection diagram with dc power connections. Reverse polarity, or application of ac voltage, could damage the module.

ATTENTION

Miswiring or shorting the output terminals will cause permanent damage to this module.

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DC (10–30V) Output Module 9

Table B

Module Output Terminal Assignments

Terminal

Number

Output Assignment I/O program address

10 to 30V dc Ć 21

Terminal

Number

Output Assignment I/O program address

10 to 30V dc Ć

02 Output 00 0RG00 22 Output 00 0RG00

03 Output 01 0RG01 23 Output 01 0RG01

04 Output 02 0RG02 24 Output 02 0RG02

05 Output 03 0RG03 25 Output 03 0RG03

06 Output 04 0RG04 26 Output 04 0RG04

07 Output 05 0RG05 27 Output 05 0RG05

08 Output 06 0RG06 28 Output 06 0RG06

09 Output 07 0RG07 29 Output 07 0RG07

10 Common 0 Ć 30 Common 2 Ć

10 to 30V dc Ć 31

10 to 30V dc Ć

12 Output 10 0RG10 32 Output 10 0RG10

13 Output 11 0RG11 33 Output 11 0RG11

14 Output 12 0RG12 34 Output 12 0RG12

15 Output 13 0RG13 35 Output 13 0RG13

16 Output 14 0RG14 36 Output 14 0RG14

17 Output 15 0RG15 37 Output 15 0RG15

18 Output 16 0RG16 38 Output 16 0RG16

19 Output 17 0RG17 39 Output 17 0RG17

20 Common 1 Ć 40 Common 3 Ć

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

G = I/O group (0 Ć 7)

You canconnect a different power supply to each 10 to 30V dc terminal. They are not connected internally. Connect each common (0, 1, 2, 3) to the corresponding

supply. Commons are not internally connected.

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DC (10–30V) Output Module10

Interpreting the Status Indicators

Replacing the Fuses

The module has 32 status indicators on the module front plate. These represent the control status of the outputs. Each indicator is lit when its corresponding output is energized. An additional indicator is provided to indicate a blown fuse condition.

FUSE

Status Indicators (red)

Fuse Blown Indicator

10436ĆI

To replace a blown fuse, proceed as follows:

ATTENTION

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. Turn off power to the chassis.

2. Remove the module from the I/O chassis.

3. Remove the blown fuse from the fuse holder (accessible through

side cover), and replace it with a 4A, 250V normal blow fuse.

4. Reinsert the module into the I/O chassis.

5. Turn on power to the chassis.

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DC (10–30V) Output Module 11

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

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

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.

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

• S'assurer que l'environnement est classé non dangereux avant

de changer les piles.

PLC-2/02, PLC-2/05, PLC-2/16, and PLC-2/17 are trademarks of Allen-Bradley Company, Inc.

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DC (10–30V) Output Module12

Specifications

Outputs per module 32 (4 groups of 8)

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

Voltage Rating 10 to 30V dc, 0.5A per output, 2A per group, 8A per module

Maximum Output Current Rating Maximum Output Current Rating

0.5A per output (not to exceed 8A per module) 2A per output group

Maximum Surge Current 2A per output for 10ms; repeatable every 2 seconds.

5A per output group for 10ms; repeatable every 2 seconds. 20A per module for 10ms; repeatable every 2 seconds.

Maximum OnĆstate Voltage Drop 1.5V dc at rated output current

Maximum OffĆstate Leakage Current 1.0mA @ 55oC

Output Signal Delay On to off propagation delay 2.0msec

Off to on propagation delay 0.1msec

Power Dissipation 13.7W (max); 1.7W (min)

Thermal Dissipation 46.7 BTU/hr (max); 5.7 BTU/hr (min)

Backplane Current 330mA @ 5V dc maximum

Isolation Voltage Tested to withstand 500V for 60s.

Conductors Wire Size

14 AWG (2.5mm2) to 22 AWG (0.25mm2) (max)1stranded copper rated at 60oC or greater 3/64 inch (1.2mm) insulation (max)

Rockwell Automation 1771-OVN User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual