Rockwell Automation 1794-OB8_OB8EP_OB16_OB16P_OB32P Flex I/O Digital DC Sourcing Output Modules Installation Instructions User Manual
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Publication 1794-IN094B-EN-P - April 2004
North American Hazardous Location Approval
The following output modules are North American
Hazardous Location approved: 1794-OB8, -OB8EP,
-OB8EPK, -OB16, -OB16P and -OB16PK.
Compatibility
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.
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
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 I, Division 2.
•
S’assurer que
l’environnement est classé non
dangereux avant de changer
les piles.
The following communication adapters are required to ensure
compatibility with the 1794-OB32P:
Remote I/O
1794-ASB series E or later
1794-ASB2 series D or later
ControlNet
TM
1794-ACN15 series C, firmware revision 4.1 or later
1794-ACNR15 series C, firmware revision 4.1 or later
Ethernet
TM
1794-AENT series A, firmware revision 2.4 or later
PROFIBUS
TM
1794-APB series A, version 1.1 of the GSD file (you can
download the GSD file at www.ab.com/networks/gsd
ControlLogix
TM
Family
RSLogix5000 programming software, version 11 or later
WARNING
AVERTISSEMENT
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 pow-
er up.
WARNING
If you remove or insert the module while the
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..
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