Rockwell Automation 1794-OB8EPXT, 1794-IB16XT, 1794-OB16PXT, 1794-IB10XOB6XT FLEX XT I/O Digital DC Input/Output Modules - Manual (Page 2)

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Publication 1794-IN124A-EN-P - January 2009
North American Hazardous Location Approval
The following output modules are North American Hazardous Location
approved: 1794-OB8EPXT, 1794-IB16XT, 1794-OB16PXT,
1794-IB10XOB6XT.
Installing Your Digital Output Module
The module mounts on a 1794 terminal base.
1. Rotate the keyswitch (1) on the terminal base (2) clockwise to
position 2 as required for this type of module.
2. Make certain the flexbus connector (3) 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 (4) with its alignment bar (5) aligned with the
groove (6) 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 (7) is
locked into the module.
Connecting Wiring for the 1794-OB8EPXT, 1794-OB16PXT and
1794-IB10XOB6XT
1. Connect individual output wiring to numbered terminals on the
0…15 row as indicated in the accompanying table (1794-OB16P -
terminals 0…15, 1794-OB8EPXT- even numbered terminals 0…14).
2. Connect the associated -V output common to the corresponding
terminal on the 16-33 row (B) for each output as indicated in the
accompanying table. (Commons are internally connected
together.)
For 1794-OB8EPXT, connect associated output common to
odd-numbered terminals on row A or associated terminals on row
B.
3. For -IB10XOB6XT, connect the associated +V DC power lead of
the input device to the corresponding terminal on the 34-51 row
(C) for each input as indicated in the table . (The +V power
terminals of row (C) are internally connected together.)
4. For -IB10XOB6XT, connect the associated input device common
(3-wire devices only) and output device common to the
corresponding terminals on the 16-33 row. (B) for each input and
output as indicated in the table below. (Commons are internally
connected together.)
5. Connect +V DC power to terminal 34 on the 34…51 row (C).
6. Connect -V DC common to terminal 16 on the 16…33 row (B).
7. If daisychaining power to the next terminal base, connect a jumper
from terminal 51 (+V DC) on this base unit to terminal 34 on the
next base unit.
8. If continuing -V DC common to the next base unit, connect a
jumper from terminal 33 (common) on this base unit to terminal 16
on the next base unit.
Connecting Wiring for the 1794-IB16XT
1. Connect individual input wiring to numbered terminals on the
0…15 row (A) as indicated in the accompanying table.
2. Connect the associated +V DC power lead of the input device to
the corresponding terminal on the 34…51 row (C) for each input
as indicated in the accompanying table. (The +V power terminals
of row (C) are internally connected together.)
3. Connect the associated input common (3-wire devices only) to the
corresponding terminal on the 16…33 row. (B) for each input as
indicated in the accompanying table. (Commons are internally
connected together.)
4. Connect +V DC power to terminal 34 on the 34…51 row (C).
5. Connect DC common to terminal 16 on the 16…33 row (B).
6. If daisychaining power to the next terminal base, connect a jumper
from terminal 51 (+V DC) on this base unit to terminal 34 on the
next base unit.
7. If continuing DC common to the next base unit, connect a jumper
from terminal 33 (common) on this base unit to terminal 16 on the
next base unit.
WARNING
Observe the following additional Zone 2 certification requirements.
• This equipment is not resistant to sunlight or other sources of
UV radiation.
• This equipment must be installed in an enclosure providing at
least IP54 protection when applied in 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 Zone 2 environments.
• Secure any external connections that mate to this equipment
by using screws, sliding latches, threaded connectors, or
other means provided with this product.
• Do not disconnect equipment unless power has been
removed or the area is known to be nonhazardous.
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.
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.
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.
ATTENTION
During mounting of all devices, be sure that all debris (for example,
metal chips, wire strands) is kept from falling into the module. Debris
that falls into the module could cause damage on power up.
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