Rockwell Automation 1771-ODD User Manual

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Installation Instructions

AC (120V) Isolated Output Module, 16 Outputs

(1771-ODD Series B)

Contents

Prevent Electrostatic Damage

Use this document as a guide when installing the catalog number 1771-ODD series B output module.

To See page

Prevent Electrostatic Discharge 1 Understand Compliance to European Union Directives 2 Important Preinstallation Considerations 2 Calculate Power Requirements 4 Setting the Mode of the FuseĆBlown Jumper 4 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 Replacing a Fuse 10 CSA Hazardous Location 11 Specifications 12

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

Electrostatic Discharge Damage

ATTENTION: 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 module

• If available, use a static-safe work station

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

static-shielded packaging

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AC (120V) Isolated Output Module, 16 Outputs2

European Union Directive Compliance

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.

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.

Important PreĆinstallation Considerations

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

This equipment is classified as open equipment and must be mounted in an enclosure during operation to provide safety protection.

An output from this module can drive an Allen-Bradley Size 5 motor starter, provided its supply voltage does not drop below 92V ac. The maximum load current the module can deliver is 2A per channel, not to exceed 8A total per module.

Your module’s outputs can drive the following motor starter combinations:

• 16 size 3 motor starters (1 per output)

• 10 size 4 motor starters (1 per output)

• 7 size 5 motor starters (1 per output)

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AC (120V) Isolated Output Module, 16 Outputs 3

The switching device in the output circuit is a solid-state triac. There is a small leakage current in the off state due to both triac and capacitive characteristics. The maximum leakage current per output is 3mA at 138V ac. Nominal leakage current is 1.5mA. The on-state voltage drop across the output terminals will not exceed 1.5V ac at 2A.

The 1771-ODD/B module is designed for a 10mA minimum current on each output circuit. The total continuous current the module supports is 8A (2A maximum per channel). If this rating is exceeded, the module overheats and damage may occur.

Suppression

Surge suppression circuitry is provided for the output triacs in this module. To suppress high-voltage transients from the ac line, a metal-oxide varistor (MOV) is provided between each set of terminals on the module. In each output circuit an RC network limits the magnitude of voltage transients that may occur when a device is wired in parallel or series with hard contacts.

Loads with inductive characteristics may require additional suppression devices. The impedance characteristic of the load is the most important factor in selecting a suppression device; thus no single suppression device can be recommended for every possible load. See NO TAG for acceptable suppression devices for typical loads.

Table A AllenĆBradley Suppressors

AllenĆBradley Equipment Suppressor Catalog Number

Motor Starter Bulletin 509 599ĆK04

Motor Starter Bulletin 709 1401ĆN10

Relay Bulletin 700 Type N or P 700N5/700N9

Miscellaneous 700ĆN24

For starters with 120V AC coils

Bulletin 700ĆN24 is a universal surge suppressor. You can use it on electromagnetic devices with the limitation of

35 sealed VA, 150V.

Determining Module Placement in the I/O Chassis

You can place your module in any I/O module slot of the I/O chassis except for the left-most slot. The left-most slot is reserved for programmable controller processors or adapter modules. Group your modules to minimize adverse effects from radiated electrical noise and/or heat. We recommend the following:

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AC (120V) Isolated Output Module, 16 Outputs4

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 or wir-

ing 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.

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

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

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

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

Calculate Power Supply Requirements

Setting the Mode of the FuseĆBlown Jumper

The isolated output module is powered by the power supply connected to the I/O chassis backplane. The module requires a maximum current of 300mA 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.

The fuse-blown jumper has two modes:

• the preset, standard (STD) mode – displays the fuse status on

the red fuse-blown status indicator

• the customer side indication (CSI) mode – displays the fuse

status in the input image table and on the red fuse-blown status indicator. This mode configures the module as a 16 point output module that utilizes both the output and input image data tables of your controller. Each channel has its own image table bit. When a fuse blows, the corresponding bit in the associated input image table will turn on (1).

For example, if you install the module in a PLCĆ5 system and address the module as O:012, then the fuse status bits are in I:012.

Publication 1771Ć5.20 - January 1999

To monitor the status of the module fuses, make certain that your user program monitors the module’s input image table for ‘‘on” bits.

ATTENTION: Do not put the module jumper in CSI mode when you use this module in a

complementary mode. Your system will not operate properly.

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AC (120V) Isolated Output Module, 16 Outputs 5

To change the fuse blown jumper to the CSI mode:

1. Locate the fuse-blown jumper at the top-right edge of the module circuit board, as shown in the following figure.

TopĆright edge of circuit board

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

3. Carefully reposition the jumper by sliding it onto the CSI position

Key the Backplane Connector

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

STD

Fuse Blown Jumper (shown in preset STD position)

middle post and the left post).

(the middle post and the right post).

ATTENTION: 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.

CSI

12636ĆI

Place the keying bands:

between 4 and 6 between 30 and 32

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.

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.

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11022ĆI

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AC (120V) Isolated Output Module, 16 Outputs6

Install the Module and Field Wiring Arm

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

locking tab

card guides

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

module

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 wir-

ing 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

remove

install

wiring arm

1771ĆWN

17643

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AC (120V) Isolated Output Module, 16 Outputs 7

Connect the Wiring to the Field Wiring Arm

ac High

You make connections to the module through the 1771-WN field wiring arm shipped with the module. The arm pivots on the chassis to connect with the terminals on the front of the module (as shown below). The wiring arm allows the module to be removed from the chassis without disconnecting wiring.

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

Connection Diagram for the 1771-ODD module

L1Ć0 L1Ć1 L1Ć2

L1Ć3

Not Used

L1Ć4 L1Ć5 L1Ć6 L1Ć7 Not used L1Ć10 L1Ć11

L1Ć12 L1Ć13 Not used L1Ć14 L1Ć15 L1Ć16

L1Ć17

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

Output Device

ac Low

120V ac

Supply

10944ĆI

ATTENTION: The field wiring arm terminal identification number is not the same as the number of

the bit which controls that output.

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AC (120V) Isolated Output Module, 16 Outputs8

Note: You can use the shorting bar supplied with your module to connect the L1-0 through L1-17 high side ac power connections together if no isolation is required.

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

You can use an output of the 1771-ODD module to drive an input of a 120V ac input module (1771-IA, -IA2, -IAD,-ID), as shown below, to indicate status of turning on a motor starter, for example. Inputs configured with the output module are not isolated from each other.

ATTENTION: Do not connect the 1771-ODD output channels in series. Doing so can result in distortion of

the output waveform causing the output devices to chatter.

Using the 1771-ODD Output Module to drive an Input Module

AC (120V) Isolated Output Module

Cat. No. 1771ĆODD

AC/DC (120V) Input Module

Cat. No. 1771ĆIAD

ac High

L1Ć0 L1Ć1 L1Ć2

L1Ć3

Not Used

L1Ć4 L1Ć5 L1Ć6 L1Ć7 Not used L1Ć10 L1Ć11

L1Ć12 L1Ć13 Not used L1Ć14 L1Ć15 L1Ć16 L1Ć17

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

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

ac Low

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120V ac

Supply

10945ĆI

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AC (120V) Isolated Output Module, 16 Outputs 9

Interpreting the Status Indicators

The module has 32 status indicators and 1 active indicator. The 16 indicators on the left side of the display show the state of each output and are driven by the logic circuitry on the programmable controller side of the module. These indicators light when their corresponding outputs are energized.

Output State Indicators

(on left)

The ACTIVE indicator lights when the module has started up and successfully initialized.

00 01

02 03 04 05

06 07

ACTIVE 10

11 12 13 14 15

16 17

Active Indicator

Fuse Blown Indicators

(on right)

10946ĆI

The module also has 16 indicators (on the right side of the display) that display a blown-fuse condition at the respective output regardless of the state of the output. These indicators are driven by your ac power supply. The FUSE blown indicators will reset after the fuse has been replaced and chassis power has been cycled.

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AC (120V) Isolated Output Module, 16 Outputs10

Replacing a Fuse

Each module output is individually fused. You can easily access the module fuses through the access holes on the 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 wir-

ing 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 carefully twist and pull to remove the blown fuse. Replace it with a 3A 2AG slo-blow fuse (Littelfuse part number 229003).

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

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AC (120V) Isolated Output Module, 16 Outputs 11

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

par la CSA

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

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

• This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D, or nonĆhazardous 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.

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.

Exemple d'étiquette de certification d'un produit par la CSA

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 AllenĆBradley 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 Ċ

• Substitution of components may impair suitability for Class I,

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

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

Division 2.

• Do not replace components unless power has been switched off or the area is known to be nonĆhazardous.

• Do not disconnect equipment unless power has been switched off or the area is known to be nonĆhazardous.

• Do not disconnect connectors unless power has been switched off or the area is known to be nonĆhazardous. Secure any userĆsupplied connectors that mate to external circuits on an AllenĆBradley 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 Ċ

• 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 AllenĆBradley 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. Ć 1,5 kg) appliquée pendant au moins une minute.

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AC (120V) Isolated Output Module, 16 Outputs12

Specifications

Outputs per Module 16 isolated

Module Location 1771ĆA1B thru ĆA4B or later I/O Chassis and 1771ĆAM1, ĆAM2

Voltage Rating 74 to 138V ac, 47Ć63Hz

Current Rating (per channel) 5mA - 2A continuous (max)

20A peak surge for 100ms; repeatable once every 2 seconds

8A per module maximum

Power Rating 3 Watts per output (max) @ 2A

OnĆstate Voltage Drop (each output) 5.8V rms (max.) @ load current <50mA

1.5V rms (max.) @ load current >50mA

OffĆstate Leakage Current (maximum) 3.0mA per output @ 138V ac

Signal Delay Times Off to On

On to Off

8.3ms @ 60Hz max.: 10ms @ 50Hz max

8.3ms @ 60Hz max.: 10ms @ 50Hz max (zero cross switching)

Power Dissipation 13.5 Watts (max); 1.5 Watts (min)

Thermal Dissipation 46.1 BTU/hr (max); 5.13 BTU/hr (min)

Backplane Current 300mA maximum at 5V

Isolation Voltage Tested at 2500V dc for 1 second per UL508 & CSA C22.2 #142

Maximum Cable Length 1000 ft (304.8 m)

Conductors Wire Size