Rockwell Automation 1794-IM16, 1794-OM16 User Manual

Page 1

Installation Instructions

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

1794-IM16, 1794-OM16

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 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 we use notes to make you aware of safety considerations.

WARNING

IMPORTANT

ATTENTION

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 that is critical for successful application and understanding of the product.

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

• recognize the consequence

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

This equipment is considered Group 1, Class A industrial equipment according to IEC/CISPR 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 enclosure must have suitable flame-retardant properties to prevent or minimize the spread of flame, complying with a flame spread rating of 5VA, V2, V1, V0 (or equivalent) if non-metallic. 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.

In addition to this publication, see:

• Industrial Automation Wiring and Grounding Guidelines, for

additional installation requirements, Allen-Bradley publication

1770-4.1.

• NEMA Standards 250 and IEC 60529, as applicable, for explanations

of the degrees of protection provided by different types of enclosure.

http://www.literature.rockwellautomation.com)

North American Hazardous Location Approval

The following modules are North American Hazardous Location approved: 1794-IM16, 1794-OM16.

ATTENTION

WARNING

The following information applies when operating this equipment in

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.

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

in use.

FLEX I/O is grounded through the DIN rail to chassis ground. Use zinc plated yellow-chromate 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.

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.

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.

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.

WARNING

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.

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.

AVERTISSEMENT

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.

• S’assurer que l’environnement est classé non dangereux avant de changer les piles.

Publication 1794-IN123B-EN-P - May 2009

Page 2

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

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.

Install Your Digital Module

Description Description

1 Keyswitch 5 Alignment bar 2 Terminal base 6 Groove 3 Flexbus connector 7 Latching mechanism 4 Module

The module mounts on a 1794 terminal base.

ATTENTION

1. Rotate the keyswitch (1) on the terminal base (2) clockwise to position 8 as

2. Make certain the flexbus connector (3) is pushed all the way to the left to

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

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

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

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.

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.

required for this type of module.

connect with the neighboring terminal base/adapter.

You cannot install the module unless the connector is fully extended.

align properly with the connector in the terminal base.

(6) on the terminal base.

module is seated when the latching mechanism (7) 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 Table 1. 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 ter minal 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.

Table 1 Wiring Connections for 1794-IM16 and 1794-OM16

1794-IM16 1794-OM16

1794-TBN 1794-TBN, 1794-TBNF

Input

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 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 Input 0 B-0 Output 0 B-0 240V AC L1 Power terminals C-34 and C-51 are intern ally connected together. Connect 240V AC L1

240V AC L2 Common terminals B-16 and B-3 3 are internally connected together. Connect 240V AC

(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.

Input Terminal

to C-34

common L2 to terminal B-16

(1)

Output

Output Terminal

(2)

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

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

Even Numbered I/O Terminals 0...14

Odd Numbered I/O Terminals 1...15

6789101112

(1794-TBN shown)

Publication 1794-IN123B-EN-P - May 2009

Page 3

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

Connecting 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 Table 1.

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 10A. Separate power connections to each terminal base may be necessary.

Configure Your AC Module

Image Table Memory Map for the 1794-IM16 Module

Dec 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Oct 17 16 15 14 13 12 11 10 7 6 5 4 3 2 1 0

Read Input Data Read Bit 15 Counter Write R EF EC Reserve d 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 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Oct 17 16 15 14 13 12 11 10 7 6 5 4 3 2 1 0

Read Not used - Set to 0 Write O15 O14 O13 O12 O11 O10 O9 O8 O7 O6 O5 O4 O3 O2 O1 O0 Where O = Output

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.

Input Filter Times

Bits Description Maximum Filter 02 01 00 Filter Time for inputs 00...11 Selected Filter 05 04 03 Filter Time for inputs 12...15 Off to On On to Off

0 0 0 Filter Time 0 (Default) 256 μs 7.5 26.5 0 0 1 Filter Time 1 512 μs 8 27 0 1 0 Filter Time 2 1 ms 9 28 0 1 1 Filter Time 3 2 ms 10 29 1 0 0 Filter Time 4 4 ms 12 31 1 0 1 Filter Time 5 8 ms 16 35 1 1 0 Filter Time 6 16 ms 24.5 44 1 1 1 Filter Time 7 32 ms 42 60.5

Time

Time (ms)

Specifications

Specifications - FLEX I/O 240V AC Input Module 1794-IM16

Attribute Value

Number of I/O channels 16, nonisolated Module location Cat. No. 1794-TBN On-state voltage 159V AC min @ 47...63 Hz

On-state current 5.30mA minimum @ 159V AC, 47Hz

Off-state voltage, max 40V AC Off-state current, max 2.6 mA Isolation voltage 250V (continuous), Basic Insulation Type

+5V Field Bus current 32 mA Power dissipation, max 6 W @ 264V AC Thermal dissipation, max 20.47 BTU/hr @ 264V AC Indicators (field side) 16 yellow status indicators Input impedance 22.2 kΩ

Input filter time

Inrush current, max 450mA

(1)

Off to On On to Off

Input off-to-on filter time is the time from a valid input signal to recognition by the module. Input on-to-off filter tim e is time from the input signal dropping be low the valid level to recognition by the module.

240V AC nom @ 47...63 Hz 264V AC max @ 47...63 Hz

11mA nominal @ 240V AC, 60Hz

13.29mA maximum @ 264V AC, 63Hz

Type tested at 1706V DC for 60 s, between field side and system No isolation between individual channels

Refer to Input Filter Times table

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

Dec.

O:010

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

For example, setting bits 00, 01 and 02 as shown below sets the off-to-on filter time for inputs 00...11 to 12 ms. For other settings, refer to the Input Filter Time table.

Write FT to

#O:010

complement of input module

Write filter time on system startup.

I:000

76543

FLL

Fill File Source Destination Length

21 0

010100

= 44 Octal or 36 Decimal

To increase the filter time, set the bits according to Input Filter Times.

Publication 1794-IN123B-EN-P - May 2009

Page 4

Specifications - Flex I/O 240V AC Output Module 1794-OM16

Attribute Value

Number of I/O channels 16, nonisolated Module location Cat. No. 1794-TBN, 1794-TBNF Output voltage 159V AC min @ 47...63 Hz

On-state current 50 mA min per output, min

Surge current 7 A for 40 ms each, repeatable every 8 seconds Off-state leakage, max 2.5 mA Isolation voltage 250V (continuous), Basic Insulation Type

Field Bus current 116 mA Power dissipation, max 6 W @ 26 4V AC Thermal dissipation, max 20.47 BTU/hr @ 264V AC Indicators (field side) 16 yellow status indicators

Output signal delay

Off to On On to Off

(1)

Delay time is the time from the receipt of an output on or off command to the output actually turning on or off.

(2)

If using 0.5 A outputs, alternate wiring so that no two 0.5 A outputs are next to each other.

ATTENTION

(1)

1794-OM16 module outputs are not fused. Fused outputs are recommended.

If not using a 1794-TBNF terminal base and fusing is required, external fusing must be provided.

240V AC nom @ 47...63 Hz 264V DC max @ 47...63 Hz

0.5 A per output, 4 A max per module

Type tested at 1706V DC for 60 s, between field side and system No isolation between individual channels

1/2 cycle max 1/2 cycle max

(2)

General Specifications

Attribute Value

Terminal base screw torque Determined by installed terminal base Dimensions (with module installed)

H x W x D External AC power supply voltage, nom 240V AC External AC power voltage range 159...264V AC, 47...63 Hz Terminal base load current, max 1794-OM16: 10 A Pilot duty rating OM16: C300 North American temp code T4 Keyswitch position 8 Enclosure type rating None (open-style) Wire size Determined by installed terminal base

Wiring category

(1)

Use this Conductor Category information for planning conductor routing. Refer to Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1

94 x 94 x 91 mm (3.7 x 3.7 x 3.6 in.)

2 - on signal ports

Environmental Specifications

Attribute Value

Operating temperature IEC 60068-2-1 (Test Ad, Operating Cold),

Storage temperature IEC 60068-2-1 (Test Ab, Unpackaged Non-operating Cold),

Relative humidity IEC 60068-2-30 (Test Db, Unpackaged Damp Heat):

Vibration IEC60068-2-6 (Test Fc, Operating):

Shock IEC60068-2-27 (Test Ea, Unpackaged shock):

Emissions CISPR 11:

ESD immunity IEC 61000-4-2:

Radiated RF immunity IEC 61000-4-3:

EFT/B immunity IEC 61000-4-4:

Surge transient immunity IEC 61000-4-5:

Conducted RF immunity IEC 61000-4-6:

Damped oscillatory wave immunity ±1kV line-line(DM) and ±2.5kV line-earth(CM) o n signal ports

IEC 60068-2-2 (Test Bd, Operating Dry Heat), IEC 60068-2-14 (Test Nb, Operating Thermal Shock):

0...55 °C (32…131 °F)

IEC 60068-2-2 (Test Bb, Unpackaged Non-operating Dry Heat), IEC 60068-2-14 (Test Na, Unpackaged Non-operating Thermal Shock):

-40…85 °C (-40…185 °F)

5…95% non-condensing

2 g @ 10...500 Hz

Operating 15 g Non-operating 15 g

Group 1, Class A (with appropriate enclosu re)

6kV contact discharges 8kV air discharges

10V/m with 1 kHz sine-wave 80% AM fro m 80...2000 MHz 10V/m with 200 Hz 50% Pulse 100% A M at 900 MHz 10V/m with 200 Hz 50% Pulse 100% AM at 1890 MHz 1V/m with 1 kHz sine-wave 80% AM from 2000...2700 MHz

±2kV at 5 kHz on power ports ±2kV at 5 kHz on signal ports

±1kV line-line(DM) and ±2kV line-earth(CM) on power ports ±1kV line-line(DM) and ±2kV line-earth(CM) on signal ports

10V rms with 1 kHz sine-wave 80% AM from 150 kH z…80 MHz

±1kV line-line(DM) and ±2.5kV line-ear th(CM) on power ports

Certifications

Certifications (when product is

(1)

marked)

c-UL-us UL Listed Industrial Control Equipme nt, certified for US and Canada. See

CE European Union 2004/108/EC EMC Di rective, compliant with:

C-Tick Australian Radiocommunications Act, compliant with:

(1)

See the Product Certification link at www.ab.com for Declaratio ns of Conformity, Certificates, and other certification details.

Value

UL File E65584.

UL Listed for Class I, Division 2 Group A,B,C,D Hazardous Locations,

certified for U.S. and Canada. See UL File E19 4810.

EN 61326-1; Meas./Control/Lab., Industrial Re quirements EN 61000-6-2; Industrial Immunity EN 61000-6-4; Industrial Emissions EN 61131-2; Programmable Controllers (Clau se 8, Zone A & B)

European Union 2006/95/EC LVD, compliant with:

EN 61131-2; Programmable Controllers (Clau se 11)

AS/NZS CISPR 11; Industrial Emissions

Publication 1794-IN123B-EN-P - May 2009 4 PN-47876