Rockwell Automation 1769-L31 User manual
Installation Instructions
1769-L31 CompactLogix Controller
Catalog Number 1769-L31
Topic Page
Important User Information 2
Environment and Enclosure Information 3
Prevent Electrostatic Discharge 4
North American Hazardous Location Approval 5
Before You Begin 6
Connect the 1769-BA Battery 7
Install a 1784-CF64 or 1784-CF128 Industrial CompactFlash Card (optional) 8
Assemble the System 9
Mount the System 11
Make RS-232 Connections to the Controller 15
Load the Controller Firmware 19
Select the Controller’s Operating Mode 24
Specifications 28
Additional Resources 31
21769-L31 CompactLogix Controller
Publication 1769-IN069C-EN-P - May 2008
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://literature.rockwellautomation.com) 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, when necessary, we use notes to make you aware of safety considerations.
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.
IMPORTANT
Identifies information that is critical for successful application and understanding of
the product.
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 and recognize the consequences.
Labels may be on or inside the equipment (for example, drive or motor) to alert people
that dangerous voltage may be present.
Labels may be on or inside the equipment (for example, drive or motor) to alert people
that surfaces may reach dangerous temperatures.
SHOCK HAZARD
BURN HAZARD
1769-L31 CompactLogix Controller 3
Publication 1769-IN069C-EN-P - May 2008
Environment and Enclosure Information
ATTENTION
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 (6562 feet) 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 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, publication
1770-4.1 for additional installation requirements
NEMA Standards publication 250 and IEC publication 60529, as
applicable, for explanations of the degrees of protection provided by
different types of enclosure.
41769-L31 CompactLogix Controller
Publication 1769-IN069C-EN-P - May 2008
Prevent Electrostatic Discharge
ATTENTION
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.
Use a static-safe workstation, if available.
Store the equipment in appropriate static-safe packaging when not in
use.
ATTENTION
This product 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.
WARNING
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.
WARNING
When you connect or disconnect the battery an electrical arc can occur. This
could cause an explosion in hazardous location installations. Be sure that the
area is nonhazardous before proceeding.
For Safety information on the handling of lithium batteries, including handling
and disposal of leaking batteries, see Guidelines for Handling Lithium
Batteries, publication AG 5-4
WARNING
If you connect or disconnect the serial cable with power applied to this module
or the serial device on the other end of the cable, 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.
1769-L31 CompactLogix Controller 5
Publication 1769-IN069C-EN-P - May 2008
North American Hazardous Location Approval
WARNING
When you insert or remove the CompactFlash Card while 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.
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 combinésdansun 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.
61769-L31 CompactLogix Controller
Publication 1769-IN069C-EN-P - May 2008
Before You Begin
Use this document as a guide for installing the controller.
Consider the following when planning your CompactLogix system:
The CompactLogix controller is always the leftmost module in the
system.
The controller must be located within four modules of the system
power supply. Some I/O modules may be located up to eight modules
away from the power supply. See the documentation for your 1769
I/O modules for details.
The 1769-L31 controller supports as many as 16 I/O modules in a
maximum of 3 I/O banks with 2 expansion cables.
Each I/O bank requires its own power supply.
Only one controller can be used in a CompactLogix system.
A 1769-ECR right end cap or 1769-ECL left end cap is required to
terminate the end of the communication bus.
These components ship with the controller.
Component Description
You can also use these components with the controller:
1756-CP3 or 1747-CP3 serial cable to connect a device to the
RS-232 port
1784-CF64 or 1784-CF128 industrial CompactFlash card to add
nonvolatile memory
IMPORTANT
The 1769-BA battery is the only battery you can use with the 1769-L31 controller.
1769-BA battery
1747-KY controller key
1769-L31 CompactLogix Controller 7
Publication 1769-IN069C-EN-P - May 2008
Connect the 1769-BA Battery
The controller is shipped with the 1769-BA battery packed separately. To
connect the battery, follow this procedure.
1. Remove the battery door by sliding it forward.
2. Insert the battery connector into the black receptacle on the board.
The connector is keyed for installation with the correct polarity.
ATTENTION
The 1769-BA battery is the only battery you can use with the 1769-L31
controllers. The 1747-BA battery is not compatible with the 1769-L31
controllers and can cause problems.
WARNING
When you connect or disconnect the battery, 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.
For safety information on the handling of lithium batteries, including handling
and disposal of leaking batteries, see Guidelines for Handling Lithium
Batteries Technical Data, publication AG-5.4.
IMPORTANT
Do not remove the plastic insulation covering the battery. The insulation is
necessary to protect the battery contacts.
81769-L31 CompactLogix Controller
Publication 1769-IN069C-EN-P - May 2008
3. Insert the battery into the door, as shown.
4. Slide the battery door back until it clicks into position.
Install a 1784-CF64 or 1784-CF128 Industrial CompactFlash Card
(optional)
The optional industrial CompactFlash card provides nonvolatile memory for
a CompactLogix controller. The card is not required for controller operation.
Follow this procedure to install the card.
1. Push the locking tab to the right.
ATTENTION
Do not remove the CompactFlash card while the controller is reading from or
writing to the card, as indicated by a flashing green CF status indicator. This
could corrupt the data on the card or in the controller, as well as corrupt the
latest firmware in the controller.
WARNING
When you insert or remove the CompactFlash Card while 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.
1769-L31 CompactLogix Controller 9
Publication 1769-IN069C-EN-P - May 2008
2. Insert the industrial CompactFlash card into the socket on the front
of the controller, noting that the label of the CompactFlash card faces
toward the left.
3. Match the orientation arrow on the card
with the arrow on the front of the
controller.
4. To remove the CompactFlash card, push
the locking tab away from the
CompactFlash card and pull the
CompactFlash card from the socket.
Assemble the System
The controller can be attached to an adjacent
I/O module or power supply before or after
mounting.
This procedure shows you how to install the controller in a
CompactLogix system.
1. Disconnect line power.
WARNING
The CompactLogix controller is not designed for removal and insertion under
power.
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.
10 1769-L31 CompactLogix Controller
Publication 1769-IN069C-EN-P - May 2008
2. Check that the lever of the adjacent module (A) is in the unlocked
(fully right) position.
3. Use the upper and lower tongue-and-groove slots (B) to secure the
modules together.
4. Move the module back along the tongue-and-groove slots until the
bus connectors line up with each other.
5. Use your fingers or a small screwdriver to push the module’s bus lever
back slightly to clear the positioning tab (C).
6. Move the module’s bus lever fully to the left (D) until it clicks, being
sure it is locked firmly in place.
7. Attach an end cap terminator (E) to the last module in the system by
using the tongue-and-groove slots as before.
8. Lock the end cap bus terminator (F).
ATTENTION
When attaching the controller, power supply, and I/O modules, make sure the
bus connectors are securely locked together to be sure of proper electrical
connection.
F
E
D
C
B
B
A
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