Allen-Bradley 1756-IH16I, 1756-OB16D, 1756-OA8D, 1756-IN16, 1756-IC16 Installation Instructions Manual

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Installation Instructions

ControlLogix DC (19.2-30V) Diagnostic Output Module

(Catalog Number 1756-OB16D)

To: See page:

Obtain a User Manual 1

Identify the Module Components 2

Prevent Electrostatic Discharge 3

See Removal and Insertion Under Power (RIUP) 3

Understand Compliance to European Union Directive 4

Note the Power Requirements 5

Install the Module 5

Key the Removable Terminal Block/Interface Module 6

Wire the Module 7

Assemble the Removable Terminal Block and the Housing 8

Install the Removable Terminal Block onto the Module 8

Check the Indicators 10

Remove the Removable Terminal Block from the Module 11

Remove the Module 12

See 1756-OB16D Specifications 12

Hazardous Location information 14

Obtain a User Manual

This product also has a user manual (pub. no. 1756-6.5.8). To view it, visit www.ab.com/manuals You can also purchase a printed manual by:

• contacting your local distributor or Rockwell Automation

representative

or www.theautomationbookstore.com

• visiting www.theautomationbookstore.com and placing

an order

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2 ControlLogix DC (19.2-30V) Diagnostic Output Module

• calling 800.963.9548 (USA/Canada) or 001.320.725.1574

(outside USA/Canada)

Identify the Module Components

You received the following components with your order:

• 1756-OB16D module

• Removable Terminal Block (RTB) door label

If you did not receive these components, contact your Rockwell Automation sales office.

This module mounts in a ControlLogix chassis and uses a

separately-ordered RTB or a Bulletin 1492 Interface Module (IFM) to connect all field-side wiring.

This module uses one of the following RTBs:

• 1756-TBCH 36 position Cage clamp RTB

• 1756-TBS6H 36 position Spring clamp RTB

Use an extended-depth cover (1756-TBE) for applications with heavy gauge wiring or requiring additional routing space. When using an IFM, consult the documentation that came with it to connect all wiring.

IMPORTANT

Before you install your module, you should have already:

• installed and grounded a 1756 chassis and

power supply.

• ordered and received an RTB or IFM and its

components for your application.

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ControlLogix DC (19.2-30V) Diagnostic Output Module 3

Prevent Electrostatic Discharge

Electrostatic discharge can damage integrated circuits or

ATTENTION

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 static-shield

box.

Removal and Insertion Under Power (RIUP)

This module is designed so you can remove and insert it

WARNING

under backplane power and field-side power. When you remove or insert a module while field-side power is applied, you may cause an electrical arc. An electrical arc can cause personal injury or property damage because it may:

• send an erroneous signal to your system’s field

devices, causing unintended machine motion or loss of process control.

• cause an explosion in a hazardous environment.

Repeated electrical arcing causes excessive wear to contacts on both the module and its mating connector. Worn contacts may create electrical resistance.

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

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4 ControlLogix DC (19.2-30V) Diagnostic Output Module

Understand Compliance to European Union Directive

If this product bears the CE marking, 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 50081-2 EMC - Generic Emission Standard, Part 2 -

Industrial Environment

• EN 50082-2 EMC - 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.

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,

publication 1770-4.1

• Automation Systems Catalog, publication B111

This equipment is classified as open equipment and must be installed (mounted) in an enclosure during operation as a means of providing safety protection.

Publication 1756-IN058D-EN-P - October 2000

ControlLogix DC (19.2-30V) Diagnostic Output Module 5

Note the Power Requirements

This module receives power from the 1756 chasis power supply and requires 2 sources of power from the backplane:

• 250mA at 5.1V dc

• 140mA at 24V dc

Add this current/power value (4.64W) to the requirements of all other modules in the chassis to prevent overloading the power supply.

Install the Module

You can install or remove the module while chassis power is applied.

ATTENTION

Insertion Under Power (RIUP). However, when you remove or insert an RTB with field-side power applied, unintended machine motion or loss of

The module is designed to support Removal and

process control can occur. Exercise extreme caution when using this feature.

1. Align circuit board with top and

bottom chassis guides.

2. Slide module into chassis until

module locking tabs ‘click’.

Locking tab

Printed Circuit Board

20861–M 20862–M

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6 ControlLogix DC (19.2-30V) Diagnostic Output Module

Key the Removable Terminal Block/Interface Module

Wedge-shaped keying tabs and U-shaped keying bands came with your RTB to prevent connecting the wrong wires to your module.

Key positions on the module that correspond to unkeyed positions on the RTB. For example, if you key the first position on the module, leave the first position on the RTB unkeyed.

Key the Module Key the RTB/IFM

1. Insert the U-shaped band as shown.

2. Push the band until it snaps in place.

1. Insert the wedge-shaped tab with rounded edge first.

2. Push the tab until it stops.

Wedge-shaped tab

U-shaped bands

20850–M

Reposition the tabs to rekey future module applications.

Wire the Removable Terminal Block

Wire the RTB with a 1/8 inch (3.2mm) maximum flat-bladed screwdriver before installing it onto the module.

Spring Clamp RTB Cage Clamp RTB

1. Strip 7/16 inch (11mm) maximum length of

wire.

2. Insert the screwdriver into the inner hole

of the RTB.

1. Strip 3/8 inch (9.5mm) maximum length of

wire.

2. Insert the wire into the open terminal.

3. Turn the screw clockwise to close the

terminal on the wire.

20851–M

3. Insert the wire into the open

terminal and remove the screwdriver.

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20860-M 20859-M

ControlLogix DC (19.2-30V) Diagnostic Output Module 7

Wire the Module

You can only connect wiring to your module through an RTB or IFM. The example below shows how to wire the module.

Daisy chain to other RTBs

+DC-0

Group 0 Group 0

+DC-0

GND-0

+DC-1

+DC-1 +DC-1

+DC-1

Group 1 Group 1

+DC-1

1756-OB16D

910

1112

1314

1516

1718

1920

2122

2324

2526

2728

2930

OUT-0

OUT-1

OUT-2

OUT-3

OUT-4

OUT-5

OUT-6

OUT-7

OUT-8

OUT-9

OUT-10

OUT-11

OUT-12

OUT-13

OUT-14

GND-1

Not used

3334

3536

OUT-15

Not used

Daisy chain to other RTBs

–

DC COM

1. All terminals with the same name are connected together on the module. For example,

DC COM can be connected to either terminal marked GND-1.

2. When you daisy chain to other RTBs, always connect the daisy chain to the terminal

40173-M

directly connected to the supply wire, as shown in the example above.

3. This wiring example shows a single voltage source.

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

After completing field-side wiring, secure the wires in the strain relief area with a cable-tie.

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8 ControlLogix DC (19.2-30V) Diagnostic Output Module

WARNING

Assemble the Removable Terminal Block and the Housing

1. Align the grooves at the bottom of the housing with the side edges of the RTB.

Groove

Side edge of the RTB

Groove

Strain relief area

Side edge of the RTB

2. Slide the RTB into the housing until it snaps into place.

20858–M

Install the Removable Terminal Block onto the Module

The RTB is designed to support Removal and Insertion Under Power (RIUP). However, when you remove or insert an RTB with field-side power applied, unintended

machine motion or loss of process control can occur. Exercise extreme caution when using this feature.

It is recommended that field-side power be removed before installing the RTB onto the module.

When you remove or insert a module while field-side power is applied, you may cause an electrical arc. An electrical arc can cause personal injury or property damage because it may:

• send an erroneous signal to your system’s field

devices, causing unintended machine motion or loss of process control.

• cause an explosion in a hazardous environment.

Publication 1756-IN058D-EN-P - October 2000

Repeated electrical arcing causes excessive wear to contacts on both the module and its mating connector. Worn contacts may create electrical resistance.

ControlLogix DC (19.2-30V) Diagnostic Output Module 9

Before installing the RTB, make certain:

• field-side wiring of the RTB has been completed.

• the RTB housing is snapped into place on the RTB.

• the RTB housing door is closed.

• the locking tab at the top of the module is unlocked.

1. Align the side and top, bottom RTB guides with the

side, top and bottom module guides.

Module guide

RTB guides

20853–M

2. Press quickly and evenly to seat the RTB on the

module until the latches snap into place.

Locking

tab

20854–M

3. Slide the locking tab down to lock the RTB

onto the module.

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10 ControlLogix DC (19.2-30V) Diagnostic Output Module

Check the Indicators

The indicators show individual I/O status (yellow) for each point and a bi-colored LED for module "OK" (red/green).

DC OUTPUT

ST01234567

FLT01234567

S T 8 9 10 11 12 13 14 15

FLT 8 9 101112131415

O K

DIAGNOSTIC

40463-M

During power up, an indicator test is done and the following occurs:

• The "OK" indicator turns red for 1 second and then turns to

flashing green if it has passed the self-test.

• The I/O status indicators turn ON for a maximum of 2 seconds

and then turn OFF.

LED indicator:

OK Steady

OK Flashing

OK Flashing red

This display:

green light

light

Means: Take this action:

The outputs are actively being controlled by a system processor.

The module has passed internal diagnostics but is not actively controlled.

Previously established communication has timed out.

None

Configure the module.

Check controller and chassis communication.

OK Steady red

light

I/O State Yellow The output is active. None

I/O Fault Red A fault has occurred for this

This completes installation of the module. Use the information below to remove the module.

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An unrecoverable error has occurred on the module.

point.

Replace the module.

Check this point at the controller.

ControlLogix DC (19.2-30V) Diagnostic Output Module 11

Remove the Removable Terminal Block from the Module

WARNING

Shock hazard exists. If the RTB is removed from the module while the field-side power is applied, the module will be electrically live. Do not touch

the RTB’s terminals. Failure to observe this caution may cause personal injury.

The RTB is designed to support Removal and Insertion Under Power (RIUP). However, when you remove or insert an RTB with field-side power applied, unintended machine motion or loss of process control can occur. Exercise extreme caution when using this feature. It is recommended that field-side power be removed before removing the module.

Before removing the module, you must remove the RTB.

1. Unlock the locking tab at the

top of the module.

42517

2. Open the RTB door and pull the

RTB off the module.

20855–M

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12 ControlLogix DC (19.2-30V) Diagnostic Output Module

Remove the Module

1. Push in top and bottom locking tabs. 2. Pull module out of the chassis.

20856–M 20857–M

1756-OB16D Specifications

Number of Outputs 16 (8 points/common) Module Location 1756 ControlLogix Chassis Backplane Current 250mA @ 5.1V dc & 140mA @ 24V dc

(Total backplane power 4.64W)

Max. Power Dissipation (Module)

3.3W @ 60

C Thermal Dissipation 11.25 BTU/hr Output Voltage Range 19.2-30V dc Output Current Rating

Per Point Per Module

Surge Current per Point 4A for 10ms each, repeatable every 1s Minimum Load Current 3mA per point Maximum On-State Voltage Drop 1.2V dc @ 2A Max. Off-State Leakage Current 1mA per point Output Delay Time

OFF to ON ON to OFF

Diagnostic Functions:

Short trip

No load Output verification Pulse test Time stamp of diagnostics

Configurable Fault States/Point Hold Last State, ON or OFF (OFF is the default)

2A max. @ 30°C & 1A max. @ 60°C (Linear derating) 8A max. @ 30°C & 4A max. @ 60°C (Linear derating)

1ms maximum 5ms maximum

8A 180ms minimum 10A 120ms minimum OFF STATE detection only ON STATE detection only User selectable maximum pulse width +/- 1ms

Configurable States in Program Mode/Point

Publication 1756-IN058D-EN-P - October 2000

Hold Last State, ON or OFF (OFF is the default)

ControlLogix DC (19.2-30V) Diagnostic Output Module 13

Scheduled Outputs Synchronization within 16.7s maximum, reference to

the Coordinated System Time Fusing Electronically fused per point Reverse Polarity Protection None - If module is wired incorrectly, outputs may be

damaged. Isolation Voltage

Group to group

User to system RTB Screw Torque (Cage clamp) 4.4 inch-pounds (0.4Nm) maximum Module Keying (Backplane) Software configurable RTB Keying User defined mechanical keying RTB and Housing

Environmental Conditions

Operating Temperature

Storage Temperature

Relative Humidity

Conductors Wire Size

Category

100% tested at 2546V dc for 1s (250V ac max. continuous voltage between groups) 100% tested at 2546V dc for 1s

36 Position RTB (1756-TBCH or TBS6H)

0 to 60°C (32 to 140°F)

-40 to 85°C (-40 to 185°F) 5 to 95% noncondensing

22-14-gauge (2mm

) stranded

3/64 inch (1.2mm) insulation maximum

2, 3

1 Screwdriver Blade Width for RTB 1/8 inch (3.2mm) maximum Agency Certification

(when product or packaging is marked)

N223

Maximum wire size will require extended housing - 1756-TBE.

Use this conductor category information for planning conductor routing as described in the system level installation manual.

Refer to publication 1770-4.1 “Industrial Automation Wiring and Grounding Guidelines’.

Listed Industrial Control Equipment

Certified Process Control Equipment Certified Class I, Division 2, Group A, B, C, D

Approved Class I, Division 2, Group A, B, C, D

Marked for all applicable directives

Marked for all applicable acts

Additional Notes

The ControlLogix system must be mounted within a suitable enclosure to prevent personal injury resulting from accessibility to live parts. The interior of this enclosure must be accessible only by the use of a tool.

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14 ControlLogix DC (19.2-30V) Diagnostic Output Module

WARNING

This industrial control equipment is intended to operate in a Pollution Degree 2 environment, in overvoltage category II applications, as defined in IEC publication 664A, at altitudes up to 2000 meters without derating.

Hazardous Location information

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, 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.

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.

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ControlLogix DC (19.2-30V) Diagnostic Output Module 15

AVERTISSEMENT

Informations sur l’utilisation de cet équipement en environnements dangereux :

Les produits marqués « CL I, DIV 2, GP A, B, C, D » ne conviennent qu’à 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 système, le code de température le plus défavorable (code de température le plus faible) peut être utilisé pour déterminer le code de température global du système. Les combinaisons d’équipements dans le système sont sujettes à inspection par les autorités locales qualifiées au moment de l’installation.

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.

Publication 1756-IN058D-EN-P - October 2000

Publication 1756-IN058D-EN-P - October 2000 PN 957424-02

Allen-Bradley 1756-IH16I, 1756-OB16D, 1756-OA8D, 1756-IN16, 1756-IC16 Installation Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual