Allen-Bradley 1734-OB8 Installation Instructions Manual

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Allen-Bradley
Modèle
1734-OB8
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Installation Instructions Manual

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POINT I/O is a trademark of Rockwell Automation
DeviceNet is a trademark of ODVA, Inc. Publication 1734-IN018A-EN-P - November 2004
Installation Instructions
POINT I/O Output Module
(Cat. No. 1734-OB2, -OB4 and -OB8 Series C)
Description Description
1
Mounting Base
1
6 RTB Removal Handle
2 Mechanical Keying (orange) 7
Removable Terminal Block (RTB)
1
3 Module Wiring Diagram 8 DIN Rail Locking Screw (orange)
4 Module Locking Mechanism 9 Slide-in Writable Label
5 Insertable I/O Module 10 Interlocking Side Pieces
1
Wiring Base Assembly consists of item 1) mounting base, 1734-MB and item 7) removable
terminal block, 1734-RTB or -RTBS.
2
4
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1
7
3
4
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B
4
E
NODE:
0
1
2
3
2
3
4
5
1
7
6
8
9
10
2 POINT I/O Output Module
Publication 1734-IN018A-EN-P - November 2004
This Series C product can be used with DeviceNet and PROFIBUS
adapters. It can be used with ControlNet and Ethernet adapters using
RSLogix 5000, version 11 (or higher) software.
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.ab.com/manuals/gi)
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.
POINT I/O Output Module 3
Publication 1734-IN018A-EN-P - November 2004
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
• recognize the consequence
IMPORTANT
Identifies information that is critical for successful
application and understanding of the product.
Important User Information
4 POINT I/O Output Module
Publication 1734-IN018A-EN-P - November 2004
I
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 publication 60664-1), at altitudes up to 2000
meters without derating.
This equipment is considered Group 1, Class A industrial
equipment according to IEC/CISPR Publication 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 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.
See NEMA Standards publication 250 and IEC publication
60529, as applicable, for explanations of the degrees of
protection provided by different types of enclosure. Also, see the
appropriate sections in this publication, as well as the
Allen-Bradley publication 1770-4.1 ("Industrial Automation
Wiring and Grounding Guidelines"), for additional installation
requirements pertaining to this equipment.
ATTENTION
POINT I/O is grounded through the DIN rail to chassis
ground. Use zinc plated, yellow chromated steel DIN rail
to assure proper grounding. Using other DIN rail
materials (e.g. aluminum, plastic, etc.) which can corrode,
oxidize or are poor conductors can result in improper or
intermittent platform grounding.
POINT I/O Output Module 5
Publication 1734-IN018A-EN-P - November 2004
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.
ATTENTION
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.
• When not in use, store the equipment in
appropriate static-safe packaging.
6 POINT I/O Output Module
Publication 1734-IN018A-EN-P - November 2004
Installing the Mounting Base
To install the mounting base on the DIN rail, proceed as follows.
1. Position the mounting base vertically above the installed units
(adapter, power supply or existing module.
2. Slide the mounting base down allowing the interlocking side pieces to
engage the adjacent module or adapter.
3. Press firmly to seat the mounting base on the DIN rail. The mounting
base will snap into place.
4. To remove the mounting base from the DIN rail, remove the module,
and use a small bladed screwdriver to rotate the base locking screw to
a vertical position. This releases the locking mechanism. Then lift
straight up to remove.
Installing the I/O Module
The module can be installed before, or after base installation. Make sure that
the mounting base is correctly keyed before installing the module into the
mounting base. In addition, make sure the mounting base locking screw is
positioned horizontal referenced to the base.
1. Using a bladed screwdriver, rotate the keyswitch (2) on the
mountingbase clockwise until the number required for the type of
module being installed aligns with the notch in the base.
2. Make certain the DIN rail locking screw is in the horizontal position.
(You cannot insert the module if the locking mechanism is unlocked.)
3. Insert the module straight down into the mounting base and press to
secure. The module will lock into place.
WARNING
When 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.
POINT I/O Output Module 7
Publication 1734-IN018A-EN-P - November 2004
Installing the Removable Terminal Block (RTB)
A removable terminal block is supplied with your wiring base assembly. To
remove, pull up on the RTB handle. This allows the mounting base to be
removed and replaced as necessary without removing any of the wiring. To
reinsert the removable terminal block, proceed as follows.
1. Insert the end opposite the handle into the base unit. This end has a
curved section that engages with the wiring base.
2. Rotate the terminal block into the wiring base until it locks itself in
place.
3. If an I/O module is installed, snap the RTB handle into place on the
module.
WARNING
When you connect or disconnect the Removable
Terminal Block (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 nonhazardous before
proceeding.
8 POINT I/O Output Module
Publication 1734-IN018A-EN-P - November 2004
Removing a Mounting Base
To remove a mounting base, you must remove any installed module, and the
module installed in the base to the right. Remove the removable terminal
block (if wired).
1. Unlatch the RTB handle on the I/O module.
2. Pull on the RTB handle to remove the removable terminal block.
3. Press on the module lock on the top of the module.
4. Pull on the I/O module to remove from the base.
5. Repeat steps 1, 2, 3 and 4 for the module to the right.
6. Use a small bladed screwdriver to rotate the orange base locking
screw to a vertical position. This releases the locking mechanism.
7. Then lift straight up to remove.
WARNING
When you connect or disconnect the Removable
Terminal Block (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 nonhazardous before
proceeding.
WARNING
When 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.
POINT I/O Output Module 9
Publication 1734-IN018A-EN-P - November 2004
Communicating with Your Module
I/O messages are sent to (consumed) and received from (produced) the
POINT I/O modules. These messages are mapped into the processor’s
memory. This POINT I/O output module consumes 1 byte of I/O data
(scanner Tx).
Default Data Map for the 1734-OB2 Output Module
Message size: 1 Byte
Default Data Map for the 1734-OB4 Output Module
Message size: 1 Byte
Default Data Map for the 1734-OB8 Output Module
Message size: 1 Byte
7 6 5 4 3 2 1 0
Consumes
(scanner Tx)
Not used Ch1 Ch0 Channel state
Where: 0 = Off, 1 = On
7 6 5 4 3 2 1 0
Consumes
(scanner Tx)
Not used Ch3 Ch2 Ch1 Ch0 Channel
state
Where: 0 = Off, 1 = On
7 6 5 4 3 2 1 0
Consumes
(scanner Tx)
Ch7 Ch6 Ch5 Ch4 Ch3 Ch2 Ch1 Ch0 Channel
state
Where: 0 = Off, 1 = On
10 POINT I/O Output Module
Publication 1734-IN018A-EN-P - November 2004
Wiring the Protected Output Modules
24VDC
Source
Output
Module
Status
Network
Status
1734
OB2
0
1
NODE:
24VDC
Source
Output
Module
Status
Network
Status
1734
OB4
0
1
2
3
NODE:
24VDC
Source
Output
Module
Status
Network
Status
1734
OB8
0
1
2
3
NODE:
4
5
6
7
42016
Module Status
Network Status
Status of Output 0
Status of Output 1
Status of Output 2
Status of Output 3
Output 0
Output 0
C
C
Output 1
Output 1
C
C
Output 0
Output 2
Output 1
Output 3
CC
V
V
C = Common
V = Supply
1734-OB2
1734-OB4
Output 0
Output 2
Output 1
Output 3
Output 4
Output 6
Output 5
Output 7
1734-OB8
Status of Output 0 & 4
Status of Output 1 & 5
Status of Output 2 & 6
Status of Output 3 & 7
POINT I/O Output Module 11
Publication 1734-IN018A-EN-P - November 2004
dc Output Module Cat. No. 1734-OB2
dc Output Module Cat. No. 1734-OB4
Output Terminal Common Terminal Power
Channel 0 0, 2 4 6
Channel 1 1, 3 5 7
Module power is supplied from the internal power bus.
Output Terminal Common Terminal Power
Channel 0 0 6
Channel 1 1 7
Channel 2 2 4
Channel 3 3 5
Module power is supplied from internal power bus.
Out 0
Out 1
Out 1
Out 0
CC
V
V
Load
Load
42014
V = 12/24V dc, C = Common
Field power is supplied from internal power bus
1734-OB2
0
2
6
4
3
5
7
1
Out 0 Out 1
Out 3Out 2
C
C
C
C
Load Load
42015
Load
Load
V = 12/24V dc, C = Common
Field power is supplied from internal power bus
1734-OB4
0
2
6
3
1
7
45
12 POINT I/O Output Module
Publication 1734-IN018A-EN-P - November 2004
dc Output Module Cat. No. 1734-OB8
Channel
Number
Output
Terminal
Common Terminal Power
Channel 0 0 Common is daisychained
from either a 1734
adapter, 1734-FPD,
1734-EP24DC or from a
user-supplied external
terminal block.
The 24V dc power for the
module is supplied by the
internal power bus and
originates from the same
adapter, 1734-FPD or
1734-EP24DC as common.
Channel 1 1
Channel 2 2
Channel 3 3
Channel 4 4
Channel 5 5
Channel 6 6
Channel 7 7
Module power is supplied from the internal power bus.
Out 0
Out 1
Out 3
Out 2
Load
Load
42015
Load
Common must be daisychained from a 1734 adapter, 1734-FPD, 1734-EP24DC, or from a
user-supplied auxiliary terminal block. The 24V dc power to the module is supplied by the internal
power bus and comes from the same 1734 adapter, 1734-FPD, or 1734-EP24DC as common.
1734-OB8
0
2
6
3
1
7
4
5
Load
Load
Load
Load
Load
Out 4
Out 5
Out 7
Out 6
C
C
POINT I/O Output Module 13
Publication 1734-IN018A-EN-P - November 2004
Example of Wiring for the 1734-OB8 Output Module
System
Power
DeviceNet
Power
Network
Status
Module
Status
1734
IB8
3
2
0
1
7
6
4
5
Network
Status
Module
Status
1734
OB8
3
2
0
1
7
6
4
5
24V dc
24V dc Return
Load
Load
Load
Load
Load
Load
Load
Load
Notes:
The 1734-OB8E maximum load is
1A maximum per channel, and 3A
total per module.
Terminal Block with
Bus connector strip
DeviceNet
14 POINT I/O Output Module
Publication 1734-IN018A-EN-P - November 2004
Troubleshooting with the Indicators
Indication Probable Cause
Module Status
Off No power applied to device
Green Device operating normally
Flashing Green Device needs commissioning due to configuration missing,
incomplete or incorrect.
Flashing Red Recoverable fault.
Red Unrecoverable fault may require device replacement
Flashing Red/Green Device is in self-test
Indication Probable Cause
Network Status
Off Device is not on-line
- Device has not completed dup_MAC_id test.
- Device not powered - check module status indicator
Flashing Green Device is on-line but has no connections in the established state.
Green Device on-line and has connections in the established state.
Flashing Red One or more I/O connections in timed-out state
Red Critical link failure - failed communication device. Device detected
error that prevents it communicating on the network.
Flashing
Red/Green
Communication faulted device - the device has detected a network
access error and is in communication faulted state. Device has
received and accepted an Identify Communication Faulted Request
- long protocol message.
Module Status
Network Status
Status of Output 0
Status of Output 1
Status of Output 2
Status of Output 3
1734-
O
B2 1734-
O
B4
Status of Output 0 & 4
Status of Output 1 & 5
Status of Output 2 & 6
Status of Output 3 & 7
Module Status
Network Status
1734-
O
B8
24VDC
Source
Output
Module
Status
Network
Status
1734
OB2
0
1
NODE:
24VDC
Source
Output
Module
Status
Network
Status
1734
OB4
0
1
2
3
NODE:
24VDC
Source
Output
Module
Status
Network
Status
1734
OB8
0
1
2
3
NODE:
4
5
6
7
POINT I/O Output Module 15
Publication 1734-IN018A-EN-P - November 2004
Safety Approvals
North American Hazardous Location Approval
The following modules are North American Hazardous Location approved:
1734-OB2, 1734-OB4 and 1734-OB8.
Indication Probable Cause
I/O Status
Off All outputs inactive
Yellow One or more output is active and under control
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.
• If this product contains batteries,
they must only be changed in an
area known to be nonhazardous.
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.
WARNING AVERTISSEMENT
16 POINT I/O Output Module
Publication 1734-IN018A-EN-P - November 2004
European Hazardous Location Approval
The following modules are European Zone 2 approved: 1734-OB2, 1734-OB4 and
1734-OB8.
European Zone 2 Certification (The following applies when the product
bears the EEx Marking)
This equipment is intended for use in potentially explosive atmospheres as defined
by European Union Directive 94/9/EC.
DEMKO certifies that this equipment has been found to comply with the Essential
Health and Safety Requirements relating to the design and construction of Category
3 equipment intended for use in potentially explosive atmospheres, given in Annex
II to this Directive. The examination and test results are recorded in
EC-type-examination certificate DEMKO 04 ATEX 0330347 X.
Compliance with the Essential Health and Safety Requirements has been assured by
compliance with EN 50021.
IMPORTANT
Observe the following additional Zone 2 certification
requirements.
• This equipment is not resistant to sunlight or other sources
of UV radiation.
• The secondary of a current transformer shall not be
open-circuited when applied in Class I, Zone 2 environments.
• Equipment of lesser Enclosure Type Rating must be installed
in an enclosure providing at least IP54 protection when
applied in Class I, Zone 2 environments.
• This equipment shall be used within its specified ratings
defined by Allen-Bradley.
• Provision shall be made to prevent the rated voltage from
being exceeded by transient disturbances of more than 40%
when applied in Class I, Zone 2 environments
POINT I/O Output Module 17
Publication 1734-IN018A-EN-P - November 2004
Specifications - 1734-OB2, -OB4 and -OB8 Output Modules
Output Specifications
Number of Outputs 1734-OB2 - 2 (1 group of 2) nonisolated, sourcing
1734-OB4 - 4 (1 group of 4) nonisolated, sourcing
1734-OB8 - 8 (1 group of 8) nonisolated, sourcing
ON-State Voltage Range 10V dc minimum
24V dc nominal
28.8V dc maximum
ON-State Voltage Drop 0.2V dc maximum
ON-State Current 1.0 mA minimum per channel
OFF-State Voltage 28.8V dc maximum
OFF-State Leakage 0.5 mA maximum
Output Signal Delay
1
OFF to ON
ON to OFF
0.1 ms maximum
0.1 ms maximum
Output Current Rating 1734-OB2 - 1.0 A per output, 2.0 A maximum per module
1734-OB4 and 1734-OB8 - 1.0 A per output, not to exceed
3.0 A maximum per module
Surge Current 2 A for 10 ms, repeatable every 3 s
Indicators (field side
indication, logic driven)
1734-OB2
2 yellow output status;
2 green/red module/network status
1734-OB4
4 yellow output status;
2 green/red module/network status
1734-OB8
8 yellow output status;
2 green/red module/network status
Keyswitch Position 1
General Specifications
Module Location 1734-TB or -TBS wiring base assembly
Pointbus Current 75 mA maximum @ 5V dc
Power Dissipation 1734-OB2 - 0.8 W maximum @ 28.8V dc
1734-OB4 - 1.2 W maximum @ 28.8V dc
1734-OB8 - 2.0 W maximum @ 28.8V dc
Thermal Dissipation 1734-OB2 - 2.7 BTU/hr maximum @ 28.8V dc
1734-OB4 - 4.1 BTU/hr maximum @ 28.8V dc
1734-OB8 - 6.8 BTU/hr maximum @ 28.8V dc
18 POINT I/O Output Module
Publication 1734-IN018A-EN-P - November 2004
Isolation Voltage
(continuous-voltage
withstand rating)
50V
Tested to withstand 2500V dc for 60 s
External dc Power
Supply Voltage
Voltage Range
Supply Current
24V dc nominal
10 to 28.8V dc
1734-OB2 - 8 mA
1734-OB4 - 16 mA
1734-OB8 - 32 mA
Dimensions
Imperial
(Metric
2.21 H x 0.47 W x 2.97 L in.
56.0 H x 12.0 W x 75.5 L mm
Environmental
Conditions
Operational
Temperature
IEC 60068-2-1 (Test Ad, Operating Cold),
IEC 60068-2-2 (Test Bd, Operating Dry Heat),
IEC 60068-2-14 (Test Nb, Operating Thermal Shock):
-20…55 °C (-4…131 °F)
Storage Temperature IEC 60068-2-1 (Test Ab, Unpackaged Nonoperating Cold),
IEC 60068-2-2 (Test Bb, Unpackaged Nonoperating Dry
Heat),
IEC 60068-2-14 (Test Na, Unpackaged Nonoperating
Thermal Shock):
-40…85 °C (-40…185 °F)
Relative Humidity IEC 60068-2-30 (Test Db, Unpackaged Nonoperating, Damp
Heat):
5…95% noncondensing
Shock
Operating
Non-operating
IEC 60068-2-27 (Test Ea, Unpackaged Shock)
30 g peak acceleration
50 g peak acceleration
Vibration IEC 60068-2-6, (Test Fc, Operating)
Tested 5 g @ 10…500 Hz
ESD Immunity IEC 61000-4-2:
6 kV contact discharges
8 kV air discharges
Radiated RF Immunity IEC 61000-4-3:
10V/m with 200 Hz 50% Pulse 100% AM at 1890 Mhz
10V/m with 200 Hz 50% Pulse 100% AM at 900 Mhz
10V/m with 1 kHz sine-wave 80% AM from 30 MHz to
2000 MHz
EFT/B Immunity IEC 61000-4-4:
±4 kV at 2.5 kHz on signal ports
±4 kV at 2.5 kHz on power ports
POINT I/O Output Module 19
Publication 1734-IN018A-EN-P - November 2004
Surge Transient
Immunity
IEC 61000-4-5:
±1 kV line-line(DM) and ±2 kV line-earth (CM) on power
and signal ports
Conducted RF Immunity IEC 61000-4-6:
10 Vrms with 1 kHz sine-wave 80% AM from 150 kHz to 80
MHz
Emissions CISPR 11
Group 1, Class A
Enclosure Type Rating None (open-style)
Conductors Wire Size
Category
14 AWG (2.5 mm
2
) - 22 AWG (0.25 mm
2
) solid or stranded
copper wire rated at 75 °C or greater
3/64 inch (1.2 mm) insulation maximum
2
2
Terminal Base Screw
Torque
7 pound-inches (0.8 Nm)
Field Wiring
Terminations
1734-OB2
0 - Output 0 1 - Output 1
2 - Output 0 3 - Output 1
4 - Common 5 - Common
6 - Supply 7 - Supply
1734-OB4
0 - Output 0 1 - Output 1
2 - Output 2 3 - Output 3
4 - Common 5 - Common
6 - Common 7 - Common
1734-OB8
0 - Output 0 1 - Output 1
2 - Output 2 3 - Output 3
4 - Output 4 5 - Output 5
6 - Output 6 7 - Output 7
Weight - Inperial
Metric
1734-OB2 - 1.15 oz
1734-OB4 - 1.17 oz
1734-OB8 - 1.25 oz
1734-OB2 - 32.60 grams
1734-OB4 - 33.17 grams
1734-OB8 - 35.4 grams
Publication 1734-IN018A-EN-P - November 2004 PN 957928-24
© 2004 Rockwell International Corporation. Printed in USA
Certifications (when
product is marked)
C-UL-US - UL Listed Industrial Control Equipment,
certified for US and Canada
C-UL-US - UL Listed for Class I, Division 2, Groups A,
B, C and D Hazardous locations, certified for US and
Canada
EEx
3
European Union 94/9/EEC ATEX Directive,
compliant with:
EN 50021; Potentially Explosive Atmospheres,
Protection “n” (Zone 2)
CE
3
European Union 89/336/EEC EMC Directive,
compliant with:
EN 61000-6-4; Industrial Emissions
EN 50082-2; Industrial Immunity
EN 61326; Meas./Control/Lab., Industrial
Requirements
EN 61000-6-2; Industrial Immunity
C-Tick
3
Australian Radiocommunications Act
compliant with AS/NZS CISPR 11, Industrial
Emissions
1 Off/on delay is time from a valid output “on” signal to output energization. On/off delay is time from a valid
output “off” signal to output deenergization.
2 Use this conductor category information for planning conductor routing as described in publication
1770-4.1, “Industrial Automation Wiring and Grounding Guidelines.”
3 See the Product Certification link at www.ab.com for Declaration of Conformity, Certificates, and
other certification details.
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Allen-Bradley 1734-OB8 Installation Instructions Manual

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