Rockwell Automation 1794-IC16_OC16 FLEX I/O 48V dc Input and Output Modules Inst. Inst. - Manual (Page 2)

2
Publication 1794-IN105A-EN-P - April 2004
North American Hazardous Location Approval
The following modules are North American Hazardous Location approved:
1794-IC16 and 1794-OC16.
Installing Your 48V dc Digital Input or 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-IC16 or 1794-OC16
1. Connect individual input (-IC16) or output (-OC16) wiring to
numbered terminals on the 0-15 row (A) as indicated in the table
below.
2. 1794-IC16 - 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 below. (The +V dc power terminals of
row (C) are internally connected together.)
1794-OC16 - Connect the associated V dc common lead of the output
device to the corresponding terminal on the 16-33 row (B) for each
output as indicated in the table below. (The V dc common terminals
of row (B) are internally connected together.)
3. 1794-IC16 only - 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 table below. (Commons are internally
connected together.)
4. Connect +V dc power to terminal 34 on the 34-51
row (C).
5. Connect V 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 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.
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.
ATTENTION
!
During mounting of all devices, be sure that all debris (met-
al chips, wire strands, etc.) is kept from falling into the
module. Debris that falls into the module could cause dam-
age on
power up.
WARNING AVERTISSEMENT
1
2
3
4
5
6
7
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..