Rockwell Automation 1771-OND User Manual

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Installation Instructions

AC (24V) Output Module

Cat. No. 1771-OND Series B

To The Installer

Preinstallation Considerations

European Union Directive Compliance

This document provides information on:

• important pre-installation considerations

• power supply requirements

• installing the module

• setting the fault mode

• using the indicators for troubleshooting

• replacing the fuses

• module specifications

This module must be used with a 1771-A1B thru -A4B or later I/O chassis. If you are using a 1771-ASB remote I/O adapter you may use any combination of I/O modules. Otherwise, make sure no other output module or single card block transfer module is placed in the same I/O group.

If this product has the CE mark it is approved for installation within the European Union and EEA regions. It has been designed and tested to meet the following directives.

EMC Directive

This product is tested to meet Council Directive 89/336/EEC Electromagnetic Compatibility (EMC) and the following standards, in whole or in part, documented in a technical construction file:

• EN 50081-2EMC – Generic Emission Standard, Part 2 –

Industrial Environment

• EN 50082-2EMC – Generic Immunity Standard, Part 2 –

Industrial Environment

This product is intended for use in an industrial environment.

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AC (24V) Output Module2

Low Voltage Directive

This product is tested to meet Council Directive 73/23/EEC Low Voltage, by applying the safety requirements of EN 61131–2 Programmable Controllers, Part 2 – Equipment Requirements and Tests.

For specific information required by EN 61131-2, see the appropriate sections in this publication, as well as the following Allen-Bradley publications:

• Industrial Automation Wiring and Grounding Guidelines For

Noise Immunity, publication 1770-4.1

• Guidelines for Handling Lithium Batteries, publication AG-5.4

• Automation Systems Catalog, publication B111

Power Requirements

Initial Handling

Your module receives its power through the 1771 I/O chassis backplane from the chassis power supply. The module requires 700mA 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 backplane power supply.

The ac output module is shipped in a static-shielded bag to guard against electrostatic discharge damage. Observe the following precautions when handling the module.

Electrostatic Discharge Damage

ATTENTION: Under some conditions, electrostatic discharge can degrade performance or damage the

module. Observe the following precautions to guard against electrostatic damage.

• Wear an approved wrist strap grounding device, or touch a

grounded object to discharge yourself before handling the module.

• Do not touch the backplane connector or connector pins.

• If you configure or replace internal components, do not touch

other circuit components inside the module. If available, use a static-free work station.

• When not in use, keep the module in a static-shielded bag.

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AC (24V) Output Module 3

Installing Your Module

In this section we tell you how to set the fault mode selection plug, key your I/O chassis, install your module and make your wiring connections.

Fault Mode Selection

You may select one of two output-failure configurations (last state or reset) by positioning a configuration plug on the bottom edge of the printed circuit board. This configuration plug is independent of the last state switch on the I/O chassis backplane.

To set the fault mode selection, proceed as follows:

1. Locate the fault mode selection plug at the bottom edge of the

module circuit board (Figure 1).

Figure 1

Mode Selection Plug

Fault

LS RESET

Bottom edge of circuit board

Fault Mode Selection Plug

(shown in last state position)

10673-I

2. Using your finger, slide the plug off the two posts.,

3. Carefully position the plug on two of the three posts that

correspond to your requirement.

Keying Your I/O Chassis

Use the plastic keying bands, shipped with each I/O chassis, to key the I/O slots to accept only this type of module.

The module circuit board is slotted in two places on the rear edge. The position of the keying bands on the backplane connector must correspond to these slots to allow insertion of the module. You can key any connector in an I/O chassis to receive this module except for the left-most connector reserved for adapter or processor modules. Place keying bands between the following numbers labeled on the backplane connector:

• Between 20 and 22

• Between 32 and 34

You can change the position of these keys if system redesign and rewiring makes insertion of a different module necessary.

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AC (24V) Output Module4

Installing the Output Module

To install the ac output module in your 1771 I/O chassis, follow the steps listed below.

ATTENTION: Remove power from the 1771 I/O chassis backplane and wiring arm before removing or

installing the module.

• Failure to remove power from the backplane or field

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 I/O chassis.

2. Place the module in the plastic tracks on the top and bottom of the

slot that guides the module into position.

3. Do not force the module into its backplane connector. Apply firm,

even pressure on the module to seat it properly.

4. Snap the chassis latch over the top of the module to secure its

position.

5. Connect the wiring arm to the module.

6. Make wiring connections to the field wiring arm as indicated in

Figure 2.

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AC (24V) Output Module 5

Connecting Wiring to the Output Module

Connections to the output module are made to the field wiring arm (cat. no. 1771-WH) shipped with the module. An optional fused wiring arm is available (cat. no. 1771-WHF) which provides individual fusing for each circuit. 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.

You must supply ac (L1) at terminals A through D on the wiring arm. You need four ac connections to accommodate the total required surge rating on the module without overstressing any single connection on the field wiring arm. Jumper all ac (L1) connections together to prevent module damage.

Figure 2 Connection

Diagram

Terminal A Terminal B Terminal C

Terminal D

Output 00 Output 01 Output 02 Output 03 Output 04 Output 05

Output 06 Output 07 Output 10 Output 11 Output 12 Output 13 Output 14 Output 15 Output 16 Output 17

Terminal E

B C D 00 01

02 03 04

05 06 07 10 11 12 13 14 15

16 17

(Actual wiring runs in this direction.)

24V ac

Output

Device

ac Low

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AC (24V) Output Module6

Important: You can use an AC (24V) Output Module (cat. no.

1771-OND) to directly drive terminals on an AC (24V) Input Module (cat. no. 1771-IND) (Figure 3). You can also use a 1771-OND Output module to drive an AC (24V) Input Module (cat. no. 1771-IN) but you must connect a 250 ohm, 5W resistor between the output terminal and L2 (common) as shown in Figure 3. Use

the same ac power source to power both modules to ensure proper phasing and prevent module damage.

Figure 3

an Input Module with an Output Module

Driving

AC (24V)

Output Module

(Cat. No. 1771OND)

24V ac High

AC (24V)

Input Module

(Cat. No. 1771IND)

AC (24V)

Output Module

(Cat. No. 1771OND)

AC (24V)

Input Module

(Cat. No. 1771IN)

24V ac High

250 ohm 5W

resistor

Publication

ac Low

Note: 1771OND output voltage range is 1060V ac. However, the onstate voltage range of the 1771IND is 1929V ac.

17715.41 - May 1996

ac Low

Note: 1771OND output voltage range is 1060V ac. However, the onstate voltage range of the 1771IN is 1228V ac.

AC (24V) Output Module 7

Interpreting the Status Indicators

The front panel of your module contains one green, module active indicator, and 16 red status indicators (Figure 4). The 1771-OND performs diagnostics in a handshaking mode when first powered up. Upon successful completion of the diagnostics, the green module active indicator lights. It turns off if a fault occurs in the data paths or the opto-isolators.

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.

Figure 4

Indicators

Status

Module Active Indicator (green)

ACTIVE 00

00 to 17 Status Indicators (red)

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AC (24V) Output Module8

Replacing the Fuse

The module’s output circuitry is protected from overload or shorts by a fuse. You can replace the fuse as outlined below.

1. Turn off all power to the I/O chassis and all output device power

to the field wiring arm.

ATTENTION: Remove power from the 1771 I/O chassis backplane and wiring arm before removing or

installing the module.

• Failure to remove power from the backplane or field

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.

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

module from the chassis.

3. Replace the blown fuse with a 10A, 250V rectifier fuse (1/4 x

1-1/4 inch), Littelfuse part number 322010.

4. Replace the module in the chassis and attach the field wiring arm.

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AC (24V) Output Module 9

Troubleshooting

If a problem occurs, follow the procedure listed below.

Modules with Internal Fuses Only

1. Turn off all power to the I/O chassis and all output device power

to the field wiring arm.

ATTENTION: Remove power from the 1771 I/O chassis backplane and wiring arm before removing or

installing the module.

• Failure to remove power from the backplane or field

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.

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

module from the chassis.

3. Replace the blown fuse with a 10A, 250V rectifier fuse (1/4 x

1-1/4 inch), Littelfuse part number 322010.

4. Replace the module in the chassis and attach the field wiring arm.

5. Turn OFF all outputs to the module.

6. Turn ON power to the I/O chassis only.

7. Check that the red status indicators on the front of the module

(Figure 4) are off (no outputs on). Make sure the red fuse blown indicator is off.

8. Turn on output device power to the field wiring arm.

9. Start with bit 00 and turn on individual outputs one at a time.

Turn off the previous output before turning on the next output.

10.If the red fuse blown indicator turns on, note which output is

faulty and trace the output wiring to the faulty device.

After correcting the fault problem, return to step 1 and begin again. If you cannot locate a faulty output, return to step 9 and turn on 2 or more outputs at the same time. Total output current should not exceed 2A per output, or 8A total per module.

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AC (24V) Output Module10

Modules with External Fuses Only

1. Turn off all power to the I/O chassis and all output device power

to the field wiring arm.

2. Pivot the wiring arm away from the module.

3. Use a continuity checker (meter in low ohms setting) to check

fuses for an open (high resistance) reading.

4. Note if fuse is open and trace the output wiring back to the output

device.

5. Check the remaining fuses (refer to step 3).

6. After all faulty fuses are replaced and any wiring problems

solved, reposition the wiring arm on the module.

7. Turn off all outputs to the module.

8. Turn on power to the I/O chassis.

9. Check that the red status indicators on the front of the module are

off (no outputs on). Make sure the red fuse blown indicator is off.

10.Turn on output device power to the wiring arm.

11. Start with bit 00 and turn on individual outputs one at a time.

Turn off last output before turning on the next output.

12.If the red fuse blown indicator lights, note which output is faulty

and trace the output wiring to the faulty device.

After correcting the fault problem, return to step 1 and begin again. If you cannot locate a faulty output, return to step 8 and turn on 2 or more outputs at the same time. Total output current should not exceed 2A per output, or 8A per module.

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AC (24V) Output Module 11

CSA Hazardous Location Approval Approbation d'utilisation dans des emplacements dangereux par la

CSA certifies products for general use as well as for use in hazardous locations. Actual CSA certification is indicated by the product label as shown below, and not by statements in any user documentation.

Example of the CSA certification product label Exemple d'étiquette de certification d'un produit par la CSA

To comply with CSA certification for use in hazardous locations, the following information becomes a part of the product literature for CSAcertified AllenBradley industrial control products.

• This equipment is suitable for use in Class I, Division 2,

Groups A, B, C, D, or nonhazardous locations only.

• The products having the appropriate CSA markings (that is, Class

I Division 2, Groups A, B, C, D), are certified for use in other equipment where the suitability of combination (that is, application or use) is determined by the CSA or the local inspection office having jurisdiction.

Important: Due to the modular nature of a PLC control system, the product with the highest temperature rating determines the overall temperature code rating of a PLC control system in a Class I, Division 2 location. The temperature code rating is marked on the product label as shown.

CSA

La CSA certifie les produits d'utilisation générale aussi bien que ceux qui s'utilisent dans des emplacements dangereux. La certification CSA en vigueur est indiquée par l'étiquette du produit et non par des affirmations dans la documentation à l'usage des utilisateurs.

Pour satisfaire à la certification de la CSA dans des endroits dangereux, les informations suivantes font partie intégrante de la documentation des produits industriels de contrôle AllenBradley certifiés par la CSA.

• Cet équipement convient à l'utilisation dans des emplacements de

Classe 1, Division 2, Groupes A, B, C, D, ou ne convient qu'à l'utilisation dans des endroits non dangereux.

• Les produits portant le marquage approprié de la CSA (c'est à dire,

Classe 1, Division 2, Groupes A, B, C, D) sont certifiés à l'utilisation pour d'autres équipements où la convenance de combinaison (application ou utilisation) est déterminée par la CSA ou le bureau local d'inspection qualifié.

Important: Par suite de la nature modulaire du système de contrôle PLC), le produit ayant le taux le plus élevé de température détermine le taux d'ensemble du code de température du système de contrôle d'un PLC dans un emplacement de Classe 1, Division 2. Le taux du code de température est indiqué sur l'étiquette du produit.

Temperature code rating

Look for temperature code rating here

The following warnings apply to products having CSA certification for use in hazardous locations.

ATTENTION: Explosion hazard 

• Substitution of components may impair suitability

for Class I, Division 2.

• Do not replace components unless power has

been switched off or the area is known to be nonhazardous.

• Do not disconnect equipment unless power has

been switched off or the area is known to be nonhazardous.

• Do not disconnect connectors unless power has

been switched off or the area is known to be nonhazardous. Secure any usersupplied connectors that mate to external circuits on an AllenBradley product using screws, sliding latches, threaded connectors, or other means such that any connection can withstand a 15 Newton (3.4 lb.) separating force applied for a minimum of one minute.

Taux du code de température

Le taux du code de température est indiqué ici

Les avertissements suivants s'appliquent aux produits ayant la certification CSA pour leur utilisation dans des emplacements dangereux.

AVERTISSEMENT: Risque d'explosion 

• La substitution de composants peut rendre ce matériel

inacceptable pour lesemplacements de Classe I, Division 2.

• Couper le courant ou s'assurer quel'emplacement est

désigné non dangereux avant de remplacer lescomposants.

• Avant de débrancher l'équipement, couper le courant

ou s'assurer que l'emplacement est désigné non dangereux.

• Avant de débrancher les connecteurs, couper le

courant ou s'assurer que l'emplacement est reconnu non dangereux. Attacher tous connecteurs fournis par l'utilisateur et reliés aux circuits externes d'un appareil AllenBradley à l 'aide de vis, loquets coulissants, connecteurs filetés ou autres moyens permettant aux connexions de résister à une force de séparation de 15 newtons (3,4 lb.  1,5 kg) appliquée pendant au moins une minute.

CSA

logo is a registered trademark of the Canadian Standards Association.

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AC (24V) Output Module12

Specifications

Outputs per Module 16

Module Location 17711A1B thru A4B or later I/O chassis; 1771AM1, AM2

Output Voltage Range 10 to 60V ac @ 47  63Hz

Output Current Rating 2A per output  not to exceed 8A per module

Surge Current (maximum) 25A per output for 100ms, repeatable every 1 second

25A per module for 100ms, repeatable every 1 second

Minimum Load Current 50mA per output @ 24V ac, 60Hz

On State Voltage Drop (max.) 1.6V at 2A

Off State Leakage Current (max.) 3mA per output @ 24V ac

Signal Delay Off to On

On to Off

1.0ms;

8.3 to 9.1ms @ 60Hz

Power Dissipation 16.5 Watts (max.), 3.7 Watts (min.)

Thermal Dissipation 56.2 BTU/hr (max.), 12.6 BTU/hr (min.)

Backplane Current 700mA @ 5V dc +5%

Isolation Voltage Tested at 1500V ac (rms) for 1s

Environmental Conditions

Operational Temperature Storage Temperature Relative Humidity

Conductors Wire Size

Rockwell Automation 1771-OND User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

To The Installer

European Union Directive Compliance

Power Requirements

Initial Handling

Installing Your Module

Interpreting the Status Indicators

Replacing the Fuse

Troubleshooting

Specifications