Allen-Bradley FLEX I/O 1794-TBN Bedienungsanleitung

Installation Instructions

FLEX I/O 240V AC Digital Input and

Output Modules

Catalog numbers 1794-IM16, 1794-OM16

Table of Contents

Topic Page

Important User Information 2

Environment and Enclosure 3

Prevent Electrostatic Discharge 3

North American Hazardous Location Approval 4

Install Your Digital Module 6

Configure Your AC Module 10

Specifications 12

2FLEX I/O 240V AC Digital Input and Output Modules

Publication 1794-IN123D-EN-P - August 2018

Important User Information

Solid-state equipment has operational characteristics differing from those of electromechanical

equipment. Safety Guidelines for the Application, Installation, and Maintenance of Solid-State Controls

(Publication SGI-1.1 available from your local Rockwell Automation Sales Office or online at

http://www.rockwellautomation.com/literature/) describes some important differences between

solid-state equipment and hard-wired electromechanical devices. Because of this difference, and also

because of the wide variety of uses for solid-state equipment, all persons responsible for applying this

equipment must satisfy themselves that each intended application of this equipment is acceptable.

In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages

resulting from the use or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes. Because of the

many variables and requirements associated with any particular installation, Rockwell Automation, Inc.

cannot assume responsibility or liability for actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits,

equipment, or software described in this manual.

Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell

Automation, Inc., is prohibited.

Throughout this manual, when necessary, we use notes to make you aware of safety considerations.

WARNING: 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.

ATTENTION: Identifies information about practices or circumstances that can lead to

personal injury or death, property damage, or economic loss. Attentions help you

identify a hazard, avoid a hazard, and recognize the consequences.

SHOCK HAZARD: Labels may be on or inside the equipment (for example, drive or

motor) to alert people that dangerous voltage may be present.

BURN HAZARD: Labels may be on or inside the equipment (for example, drive or

motor) to alert people that surfaces may reach dangerous temperatures.

IMPORTANT Identifies information that is critical for successful application and understanding of

the product.

FLEX I/O 240V AC Digital Input and Output Modules 3

Publication 1794-IN123D-EN-P - August 2018

Environment and Enclosure

Prevent Electrostatic Discharge

ATTENTION: This equipment is intended for use in a Pollution Degree 2

industrial environment, in overvoltage Category II applications (as defined in

EN/IEC 60664-1), at altitudes up to 2000 m (6562 ft) without derating.

This equipment is not intended for use in residential environments and may not

provide adequate protection to radio communication services in such

environments.

This equipment is supplied as open-type equipment for indoor use. 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 enclosure

must have suitable flame-retardant properties to prevent or minimize the spread

of flame, complying with a flame spread rating of 5VA or be approved for the

application if nonmetallic. The interior of the enclosure must be accessible only

by the use of a tool. Subsequent sections of this publication may contain more

information regarding specific enclosure type ratings that are required to

comply with certain product safety certifications.

In addition to this publication, see the following:

• Industrial Automation Wiring and Grounding Guidelines, publication

1770-4.1, for more installation requirements.

• NEMA Standard 250 and EN/IEC 60529, as applicable, for explanations of

the degrees of protection provided by enclosures.

ATTENTION: 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.

• Use a static-safe workstation, if available.

• Store the equipment in appropriate static-safe packaging when not in use.

4FLEX I/O 240V AC Digital Input and Output Modules

Publication 1794-IN123D-EN-P - August 2018

North American Hazardous Location Approval

The following modules are North American Hazardous Location approved: 1794-IM16,

1794-OM16.

The following information applies when

operating this equipment in hazardous

locations:

Informations sur l’utilisation de cet équipement

en environnements dangereux:

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.

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.

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.

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 I, Division 2.

FLEX I/O 240V AC Digital Input and Output Modules 5

Publication 1794-IN123D-EN-P - August 2018

ATTENTION: If this equipment is used in a manner not specified by the

manufacturer, the protection provided by the equipment may be impaired.

ATTENTION: Read this document and the documents listed in the Additional

Resources section about installation, configuration, and operation of this

equipment before you install, configure, operate, or maintain this product. Users

are required to familiarize themselves with installation and wiring instructions

in addition to requirements of all applicable codes, laws, and standards.

ATTENTION: Installation, adjustments, putting into service, use, assembly,

disassembly, and maintenance are required to be carried out by suitably trained

personnel in accordance with applicable code of practice.

ATTENTION: In case of malfunction or damage, no attempts at repair should be

made. The module should be returned to the manufacturer for repair. Do not

dismantle the module.

ATTENTION: This equipment is certified for use only within the surrounding air

temperature range of 0…55 °C (32…131 °F). The equipment must not be used

outside of this range.

ATTENTION: Use only a soft dry anti-static cloth to wipe down equipment. Do

not use any cleaning agents.

ATTENTION: This product is grounded through the DIN rail to chassis ground.

Use zinc plated chromate-passivated steel DIN rail to assure proper grounding.

The use of other DIN rail materials (for example, aluminum or plastic) that can

corrode, oxidize, or are poor conductors, can result in improper or intermittent

grounding. Secure DIN rail to mounting surface approximately every 200 mm

(7.8 in.) and use end-anchors appropriately. Be sure to ground the DIN rail

properly. Refer to Industrial Automation Wiring and Grounding Guidelines,

Rockwell Automation publication 1770-4.1, for more information.

WARNING: When you insert or remove the module while backplane power is

on, an electric arc can occur. This could cause an explosion in hazardous

location installations.

Be sure that power is removed or the area is nonhazardous before proceeding.

Repeated electric arcing causes excessive wear to contacts on both the module

and its mating connector. Worn contacts may create electrical resistance that

can affect module operation.

6FLEX I/O 240V AC Digital Input and Output Modules

Publication 1794-IN123D-EN-P - August 2018

Install Your Digital Module

WARNING: If you insert or remove the module while backplane power is on, an

electrical arc can occur. This could cause an explosion in hazardous location

installations.

Be sure that power is removed or the area is nonhazardous before proceeding.

WARNING: Do not connect control circuit directly to line voltage. Line voltage

must be supplied by a suitable, approved isolating transformer or power supply

having short circuit capacity not exceeding 100 VA maximum or equivalent.

WARNING: If you connect or disconnect wiring while the field-side power is

on, an electrical arc can occur. This could cause an explosion in hazardous

location installations. Be sure that power is removed or the area is

nonhazardous before proceeding.

Description Description

1 FlexBus connectors 5 Groove

2 Latching mechanism 6 Alignment bar

3 Keyswitch

Module

4 Terminal base

45284

FLEX I/O 240V AC Digital Input and Output Modules 7

Publication 1794-IN123D-EN-P - August 2018

The module mounts on a 1794 terminal base.

1. Rotate the keyswitch (3) on the terminal base (4) clockwise to position 8 as

required for this type of module.

2. Make sure the FlexBus connector (1) is pushed all the way to the left to connect

with the neighboring terminal base/adapter. You cannot install the module

unless the connector is fully extended.

3. Make sure the pins on the bottom of the module are straight so they will align

properly with the connector in the terminal base.

4. Position the module (7) with its alignment bar (6) aligned with the groove (5) on

the terminal base.

5. Press firmly and evenly to seat the module in the terminal base unit. The module

is seated when the latching mechanism (2) is locked into the module.

Connect Wiring for your 1794-IM16 Module

(using a 1794-TBN Terminal Base)

1. Connect individual input wiring to terminals 0...15 on the 16-33 row (B), and on

the 34-51 row (C) as indicated in the Wiring Connections for 1794-IM16 and

1794-OM16 table. Auxiliary terminal blocks are required to distribute 240V AC

power (L1) to each device.

2. Connect 240V AC power (L1) to terminal 34 on the 34-51 row (C).

3. Connect 240V AC common (L2) to terminal 16 on the 16-33 row (B).

4. If daisychaining power to the next terminal base, connect a jumper from terminal

51 (240V AC L1) on this base unit to terminal 34 on the next base unit.

5. If continuing AC common to the next base unit, connect a jumper from terminal

33 (240V common L2) on this base unit to terminal 16 on the next base unit.

ATTENTION: Do not remove or replace a Terminal Base unit when power is

applied. Interruption of the backplane can result in unintentional operation or

machine motion.

ATTENTION: During mounting of all devices, be sure that all debris (metal

chips, wire strands, etc.) is kept from falling into the module. Debris that falls

into the module could cause damage on power up.

8FLEX I/O 240V AC Digital Input and Output Modules

Publication 1794-IN123D-EN-P - August 2018

Connect Wiring for your 1794-OM16 Module

(using a 1794-TBN or TBNF Terminal Base)

1. Connect individual output wiring to terminals 0...15 on the 16-33 row (B), and

the 34-51 row (C) as indicated in the Wiring Connections for 1794-IM16 and

1794-OM16 table.

2. Auxiliary terminal blocks are required to connect the associated L2 common for

each channel. Connect the L2 side of the load together and then connect to L2

on the power supply.

3. Connect 240V AC power L1 to terminal 34 on the 34-51 row (C).

4. Connect 240V AC common L2 to terminal 16 on the 16-33 row (B).

5. If daisychaining power to the next terminal base, connect a jumper from terminal

51 (240V AC L1) on this base unit to terminal 34 on the next base unit.

6. If continuing 240V AC common (L2) to the next base unit, connect a jumper

from terminal 33 (240V AC common L2) on this base unit to terminal 16 on the

next base unit.

Note: Total current draw through terminal base connection is limited to 10 A. Separate

power connections to each terminal base may be necessary.

Wiring Connections for 1794-IM16 and 1794-OM16

1794-IM16 1794-OM16

1794-TBN 1794-TBN, 1794-TBNF

Input Input Terminal(1) Output Output Terminal(2)

Input 0 B-0 Output 0 B-0

Input 1 C-1 Output 1 C-1

Input 2 B-2 Output 2 B-2

Input 3 C-3 Output 3 C-3

Input 4 B-4 Output 4 B-4

Input 5 C-5 Output 5 C-5

Input 6 B-6 Output 6 B-6

Input 7 C-7 Output 7 C-7

Input 8 B-8 Output 8 B-8

FLEX I/O 240V AC Digital Input and Output Modules 9

Publication 1794-IN123D-EN-P - August 2018

1794-TBN Terminal Base Wiring for 1794-IM16 and 1794-OM16

Input 9 C-9 Output 9 C-9

Input 10 B-10 Output 10 B-10

Input 11 C-11 Output 11 C-11

Input 12 B-12 Output 12 B-12

Input 13 C-13 Output 13 C-13

Input 14 B-14 Output 14 B-14

Input 15 C-15 Output 15 C-15

240V AC L1 Power terminals C-34 and C-51 are internally connected together. Connect 240V AC

L1 to C-34

240V AC L2 Common terminals B-16 and B-33 are internally connected together. Connect 240V

AC common L2 to terminal B-16

(1) Auxiliary terminal blocks are required to distribute 240V AC power L1 to each device.

(2) Auxiliary terminal blocks are required to connect the associated L2 common for each channel.

Wiring Connections for 1794-IM16 and 1794-OM16

1794-IM16 1794-OM16

1794-TBN 1794-TBN, 1794-TBNF

Input Input Terminal(1) Output Output Terminal(2)

16 0

15 51

Even Numbered I/O Terminals 0...14

Odd Numbered I/O Terminals 1...15

(1794-TBN shown)

L1 = 240V AC - Connect to terminal C-34

L2 = 240V AC common - Connect to terminal B-16

Use B-33 and C-51 for daisychaining to the next terminal base unit

10 FLEX I/O 240V AC Digital Input and Output Modules

Publication 1794-IN123D-EN-P - August 2018

Configure Your AC Module

Set the Input Filter Time for the 1794-IM16 Module

You can increase the input filter time (FT) for channels 00...15 by setting the

corresponding bits in the output image table (complementary word) for the module.

Image Table Memory Map for the 1794-IM16 Module

Dec 1514131211109876543210

Oct 17161514131211107 6 5 4 3 2 1 0

Read Input Data

Read Bit 15 Counter

Write R EF EC Reserved Filter Time 12...15 Filter Time 0...11

Where I = Input status

R = Reserved

EF = Enable Filter 0 = Enabled

EC = Enable Counter 0 = Enabled

Image Table Memory Map for the 1794-OM16 Module

Dec 1514131211109876543210

Oct 17161514131211107 6 5 4 3 2 1 0

Read Not used – set to 0

Write O15O14O13O12O11O10O9O8O7O6O5O4O3O2O1O0

Where O = Output

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

FT = 12...15 FT = 0...11

O:010

Dec.

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