Rockwell Automation MicroLogix 1400 1766-L32BWA, 1766-L32AWA, 1766-L32BXB, 1766-L32BWAA, 1766-L32AWAA, 1766-L32BXBA Programmable Controllers Installation Instructions
Below you will find brief information for MicroLogix 1400 1766-L32BWA, MicroLogix 1400 1766-L32AWA, MicroLogix 1400 1766-L32BXB. This document provides instructions on how to install and wire these programmable controllers. You will learn about mounting options, terminal block layouts, and grounding the controllers for a safe and efficient setup.
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Installation Instructions
MicroLogix 1400 Programmable Controllers
Catalog Number(s) 1766-L32BWA, 1766-L32AWA,
1766-L32BXB, 1766-L32BWAA, 1766-L32AWAA,
1766-L32BXBA http://literature.rockwellautomation.com/idc/groups/literature/documents/in/1
766-in001_-mu-p.pdf
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Installation Instructions
MicroLogix 1400 Programmable Controllers
Catalog Number(s) 1766-L32AWA, 1766-L32AWAA,
1766-L32BWA, 1766-L32BWAA, 1766-L32BXB,
1766-L32BXBA
Topic
Hazardous Location Considerations
Connect 1762 I/O Expansion Modules
Page
4 MicroLogix 1400 Programmable Controllers
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.
SHOCK HAZARD
Labels may be on or inside the equipment (for example, drive or motor) to alert people that dangerous voltage may be present.
BURN HAZARD
Labels may be on or inside the equipment (for example, drive or motor) to alert people that surfaces may reach dangerous temperatures.
Publication 1766-IN001A-EN-P - July 2008
MicroLogix 1400 Programmable Controllers 5
Environment and Enclosure
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 ft) 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.
Preventing 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.
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6 MicroLogix 1400 Programmable Controllers
North American Hazardous Location Approval
The following modules are North American Hazardous Location approved: 1766-L32AWA,
1766-L32AWAA, 1766-L32BWA, 1766-L32BWAA, 1766-L32BXB, 1766-L32BXBA
The following information applies when operating this equipment in hazardous locations:
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.
WARNING
EXPLOSION HAZARD
• Do not disconnect while the circuit is live or unless the area is known to be free of ignitible concentations.
Informations sur l’utilisation de cet
équipement en environnements dangereux:
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.
AVERTISSEMENT
RISQUE D’EXPLOSION
• Couper le courant ou s’assurer que l’environnement est classé non dangereux avant de débrancher l'équipement.
• 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.
• 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.
• Substitution of components may impair suitability for Class I,
Division 2.
• La substitution de composants peut rendre cet équipement inadapté à une utilisation en environnement de Classe I,
Division 2.
• Do not remove or replace lamps, fuses or plug-in modules (as applicable) unless power has been disconnected or the area is known to be free of ignitible concentrations of flammable gases or vapors.
• S’assurer que l’environnement est classé non dangereux avant de changer les piles.
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MicroLogix 1400 Programmable Controllers 7
Additional Resources
Resource
MicroLogix 1400 Programmable Controllers User
Manual 1766-UM001
MicroLogix 1400 Instruction Set Reference
Manual1766-RM001
Installation Instructions 1762-INxxx
Description
A more detailed description of how to install and use your MicroLogix 1400 programmable controller and expansion I/O system.
A reference manual that contains data and function files, instruction set, and troubleshooting information for MicroLogix 1400.
Information on installing and using 1762 expansion I/O modules.
More information on proper wiring and grounding techniques.
Industrial Automation Wiring and Grounding
Guidelines 1770-4.1
If you would like a manual, you can:
• download a free electronic version from the internet: http://literature.rockwellautomation.com
• purchase a printed manual by contacting your local Allen-Bradley distributor or
Rockwell Automation representative
Publication 1766-IN001A-EN-P - July 2008
8 MicroLogix 1400 Programmable Controllers
Overview
MicroLogix 1400 controllers are suitable for use in an industrial environment when installed in accordance with these instructions. Specifically, this equipment is intended for use in clean, dry environments (Pollution degree 2
(1)
) and with circuits not exceeding Over Voltage
Category II
(2)
(IEC 60664-1)
(3)
.
Install your controller using these installation instructions.
Debris strip
44513
ATTENTION
Do not remove the protective debris strip until after the controller and all other equipment in the panel near the controller are mounted and wiring is complete.
Once wiring is complete, remove protective debris strip. Failure to remove strip before operating can cause overheating.
ATTENTION
Electrostatic discharge can damage semiconductor devices inside the controller.
Do not touch the connector pins or other sensitive areas.
(1)
(2)
(3)
Pollution Degree 2 is an environment where, normally, only non-conductive pollution occurs except that occasionally a temporary conductivity caused by condensation shall be expected.
Over Voltage Category II is the load level section of the electrical distribution system. At this level transient voltages are controlled and do not exceed the impule voltage capability of the product's insulation.
Pollution Degree 2 and Over Voltage Category II are International Electrotechnical commissions (IEC) designations.
Publication 1766-IN001A-EN-P - July 2008
Controller Description
MicroLogix 1400 Programmable Controllers 9
1 2 3 4 5 6 7
1
ESC
OK
44514
Left side view
13 12 11 10
Top view
9 8
1
2
Description
Comm port 2 - 9-pin D-Shell RS-232C connector
Memory module (refer to MicroLogix 1400 Memory Module Installation Instructions, publication
1766-IN010A for instructions on installing the memory module).
User 24V (for 1766-L32BWA and 1766-L32BWAA only) 3
4
5
8
9
6
7
Input terminal block
LCD Display Keypad (ESC, OK, Up, Down, Left, Right)
Battery compartment
1762 expansion bus connector
Battery connector
Output terminal block
10 LCD Display
11 Indicator LED panel
12 Comm port 1 - RJ45 connector
13 Comm port 0 - 8-pin mini DIN RS-232C/RS-485 connector
44515
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10 MicroLogix 1400 Programmable Controllers
Controller Input and Output Description
Catalog
Number
1766-L32BWA
1766-L32AWA
1766-L32BXB
1766-L32BWA
A
1766-L32AWA
A
1766-L32BXBA
Description
Input
Power
100/240V AC
24 V DC
100/240V AC
24V DC
User
Power
Embedded
Discrete I/O
24V DC
12 Fast 24V DC Inputs
8 Normal 24V DC Inputs
12 Relay Outputs
20 120V AC Inputs
12 Relay Outputs
None
24V DC
12 Fast 24V DC Inputs
8 Normal 24V DC Inputs
6 Relay Outputs
3 Fast DC Outputs
3 Normal DC Outputs
12 Fast 24V DC Inputs
8 Normal 24V DC Inputs
12 Relay Outputs
None
20 120V AC Inputs
12 Relay Outputs
12 Fast 24V DC Inputs
8 Normal 24V DC Inputs
6 Relay Outputs
3 Fast DC Outputs
3 Normal DC Outputs
Embedded
Analog I/O
None
4 Voltage Inputs
2 Voltage
Outputs
(1)
(2)
Isolated RS-232/RS-485 combo port. Same as ML1100 Comm 0
Non-isolated RS-232. Standard D-sub connector
Comm.
Ports
1 RS232/RS485
(1)
1 Ethernet/IP
1 RS232
(2)
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MicroLogix 1400 Programmable Controllers 11
Hazardous Location Considerations
This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D or non-hazardous locations only. The following WARNING statement applies to use in hazardous locations.
WARNING
EXPLOSION HAZARD
• Substitution of components may impair suitability for Class I, Division 2.
• Do not replace components or disconnect equipment unless power has been switched off.
• Do not connect or disconnect components unless power has been switched off.
• This product must be installed in an enclosure. All cables connected to the product must remain in the enclosure or be protected by conduit or other means.
• All wiring must comply with N.E.C. article 501-10(b) and/or in accordance with
Section 18-1J2 of the Canadian Electrical Code, and in accordance with the authority having jurisdiction.
Use only the following communication cables in Class I, Division 2 hazardous locations.
Environment Classification
Class I, Division 2 Hazardous Environment
Communication Cables
1761-CBL-AC00 Series C or later
1761-CBL-AM00 Series C or later
1761-CBL-AP00 Series C or later
1761-CBL-PM02 Series C or later
1761-CBL-HM02 Series C or later
2707-NC9 Series C or later
1763-NC01 Series A or later
1747-CP3 Series
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12 MicroLogix 1400 Programmable Controllers
Environnements dangereux
Cet équipement est conçu pour une utilisation en environnements dangereux de Classe I,
Division 2, Groupes A, B, C, D ou non dangereux. La mise en garde suivante s’applique à utilisation en environnements dangereux.
WARNING
DANGER D’EXPLOSION
• La substitution de composants peut rendre cet équipement impropre à une utilisation en environnement de Classe I, Division 2.
• Ne pas remplacer de composants ou déconnecter l’équipement sans s’être assuré que l’alimentation est coupée.
• Ne pas connecter ou déconnecter des composants sans s’être assuré que l’alimentation est coupée.
• Ce produit doit être installé dans une armoire. Tous les câbles connectés à l’appareil doivent rester dans l’armoire ou être protégés par une goulotte ou tout autre moyen.
• L’ensemble du câblage doit être conforme à la réglementation en vigueur dans les pays où l’appareil est installé.
Utilisez uniquement les câbles de communication suivants dans les environnements dangereux de Classe I, Division 2.
Classification des environnements Câbles de communication
Environnement dangereux de Classe I, Division 2 1761-CBL-AC00 série C ou ultérieure
1761-CBL-AM00 série C ou ultérieure
1761-CBL-AP00 série C ou ultérieure
1761-CBL-PM02 série C ou ultérieure
1761-CBL-HM02 série C ou ultérieure
2707-NC9 série C ou ultérieure
1763-NC01 série A ou ultérieure série 1747-CP3
ATTENTION
UNSUPPORTED CONNECTION
Do not connect the Comm0 port on the MicroLogix 1400 controller to another MicroLogix family controller such as MicroLogix 1000, MicroLogix 1200, or MicroLogix 1500 using a
1761-CBL-AM00 (8-pin mini-DIN to 8-pin mini-DIN) cable or equivalent.
This type of connection will cause damage to the RS-232/485 communication port
(Channel 0) of the MicroLogix 1400 and/or the controller itself. Communication pins used for RS-485 communications are alternately used for 24V power on the other MicroLogix controllers.
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MicroLogix 1400 Programmable Controllers 13
Mount the Controller
General Considerations
Most applications require installation in an industrial enclosure to reduce the effects of electrical interference and environmental exposure. Locate your controller as far as possible from power lines, load lines, and other sources of electrical noise such as hard-contact switches, relays, and ac motor drives. For more information on proper grounding guidelines, see the Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1
.
ATTENTION
Mount the controller horizontally only. Vertical mounting is not supported due to thermal considerations.
ATTENTION
Be careful of metal chips when drilling mounting holes for your controller or other equipment within the enclosure or panel. Drilled fragments that fall into the controller could cause damage. Do not drill holes above a mounted controller if the protective debris strips have been removed.
WARNING
Do not place the MLX1400 Programmable Controller in direct sunlight.
Prolonged exposure to direct sunlight could degrade the LCD display.
WARNING
The local programming terminal port is intended for temporary use only and must not be connected or disconnected unless the area is assured to be nonhazardous.
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14 MicroLogix 1400 Programmable Controllers
Mounting Dimensions
C
Dimension
A
B
C
A
B
1766-L32BWA, 1766-L32AWA, 1766-L32BXB,
1766-L32BWAA, 1766-L32AWAA, 1766-L32BXBA
44516
Height
90 mm (3.5 in.)
180 mm (7.087 in.)
87 mm (3.43 in.)
Controller Spacing
The controller mounts horizontally, with the expansion I/O extending to the right of the controller. Allow 50 mm (2 in.) of space on all but the right side for adequate ventilation, as shown below.
Top
Side
ESC
OK
Bottom
44517
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MicroLogix 1400 Programmable Controllers 15
DIN Rail Mounting
The maximum extension of the latch is 14 mm (0.55 in.) in the open position. A flat-blade screwdriver is required for removal of the controller. The controller can be mounted to
EN50022-35x7.5 or EN50022-35x15 DIN rails. DIN rail mounting dimensions are shown below..
B
A
C
44518
Dimension
A
B
C
Height
90 mm (3.5 in.)
27.5 mm (1.08 in.)
27.5 mm (1.08 in.)
Follow these steps to install your controller on the DIN rail.
1. Mount your DIN rail. Make sure that the placement of the controller on the DIN rail
meets the recommended spacing requirements (see Controller Spacing on page 14
for more information). Refer to the mounting template inside the back cover of this document.
2. If it is open, close the DIN latch.
3. Hook the top slot over the DIN rail.
4. While pressing the controller down against the top of the rail, snap the bottom of the controller into position.
5. Leave the protective debris strip attached until you are finished wiring the controller and any other devices.
Follow these steps to remove your controller from the DIN rail.
1. Place a flat-blade screwdriver in the DIN rail latch at the bottom of the controller.
Publication 1766-IN001A-EN-P - July 2008
16 MicroLogix 1400 Programmable Controllers
2. Holding the controller, pry downward on the latch until the latch locks in the open position.
3. Repeat steps 1 and 2 for the second DIN rail latch.
4. Unhook the top of the DIN rail slot from the rail.
Open
ESC
OK
Closed
44519
44520
Panel Mounting
Mount to panel using #8 or M4 screws. Follow these steps to install your controller using mounting screws.
1. Remove the mounting template from inside the back cover of this document.
2. Secure the template to the mounting surface. Make sure your controller is spaced
properly (see Controller Spacing on page 14 for more information).
3. Drill holes through the template.
4. Remove the mounting template.
Mounting Template
5. Mount the controller.
6. Leave the protective debris strip in place until you are finished wiring the controller and any other devices
ESC
OK
44521
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MicroLogix 1400 Programmable Controllers 17
Using the Battery
The MicroLogix 1400 controller is equipped with a replaceable battery (catalog number
1747-BA). The Battery Low indicator on the LCD display of the controller shows the status of the replaceable battery. When the battery is low, the indicator is set (displayed as a solid rectangle). This means that either the battery wire connector is disconnected, or the battery may fail within 2 days if it is connected.
IMPORTANT
The MicroLogix 1400 controller ships with the battery wire connector connected.
Ensure that the battery wire connector is inserted into the connector port if your application needs battery power. For example, when using a real-time clock
(RTC).
Replacing the battery when the controller is powered down will lose all user application memory. Replace the battery when the controller is powered on.
Refer to the SLC 500 Lithium Battery Installation Instructions, publication
1747-IN515 , for more information on installation, handling, usage, storage, and disposal of the battery.
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 .
Follow these steps to connect the replaceable battery.
1. Insert the replaceable battery wire connector into the controller’s battery connector.
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18 MicroLogix 1400 Programmable Controllers
2. Secure the battery connector wires so that it does not block the 1762 expansion bus connector as shown below.
Battery compartment
1762 I/O expansion bus connector
Battery wire connector
Battery connector
Battery wires twisted pair
44522
Connect 1762 I/O Expansion Modules
ATTENTION
Remove power from the system before installing or removing expansion I/O or damage to the controller may result.
Connect 1762 I/O after mounting the controller.
1. Remove the expansion port cover to install expansion I/O modules.
2. Plug the ribbon cable connector into the bus connector.
Publication 1766-IN001A-EN-P - July 2008
3. Replace the cover as shown below.
MicroLogix 1400 Programmable Controllers 19
44523
The MicroLogix 1400 controller is designed to support up to any seven 1762 expansion I/O modules.
For detailed information on using expansion I/O, refer to the installation instructions for your expansion module.
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20 MicroLogix 1400 Programmable Controllers
Wire the Controller
Terminal Block Layouts
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 used in a Class I, Division 2, hazardous location, this equipment must be mounted in a suitable enclosure. All wiring must be in accordance with Class I,
Division 2 wiring methods of Article 501 of the National Electrical Code and/or in accordance with Section 18-1J2 of the Canadian Electrical Code, and in accordance with the authority having jurisdiction.
TIP
The shading in the following terminal block illustrations indicates which terminals are tied to which commons.
1766-L32BWA/L32BWAA
Input Terminal Block
+24 V COM +24 V DC
IN0 IN2 COM 1 IN5 IN7 IN8 IN10 COM 3 IN13 IN15 IN17 IN19 IV0(+) IV2(+)
COM 0
IN1 IN3 IN4 IN6
COM 2
IN9 IN11 IN12 IN14 IN16 IN18 COM
ANA
IV1(+) IV3(+)
VAC
L1
VAC
L2/N OUT0 OUT1 OUT2 OUT3 OUT4
VAC
DC5 OUT7 OUT8 OUT10
COM
ANA
OV1
DC0
VAC
DC1
VAC
DC2
VAC
DC3
VAC
DC4
VAC
OUT5 OUT6 DC6
VAC
OUT9 OUT11
OV0
Output Terminal Block
44524
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MicroLogix 1400 Programmable Controllers 21
1766-L32AWA/L32AWAA
Input Terminal Block
IN0 IN2 COM 1 IN5 IN7 IN8 IN10 COM 3 IN13 IN15 IN17 IN19 IV0(+) IV2(+)
COM 0 IN1 IN3 IN4 IN6 COM 2 IN9 IN11 IN12 IN14 IN16 IN18 COM
ANA
IV1(+) IV3(+)
VAC
L1
VAC
L2/N OUT0 OUT1 OUT2 OUT3 OUT4
VAC
DC5 OUT7 OUT8 OUT10
COM
ANA
OV1
DC0
VAC
DC1
VAC
DC2
VAC
DC3
VAC
DC4
VAC
OUT5 OUT6 DC6
VAC
OUT9 OUT11 OV0
Output Terminal Block
1766-L32BXB/L32BXBA
Input Terminal Block
IN0 IN2 COM 1 IN5 IN7 IN8 IN10 COM 3 IN13 IN15 IN17 IN19 IV0(+) IV2(+)
44525
COM 0 IN1 IN3 IN4 IN6 COM 2 IN9 IN11 IN12 IN14 IN16 IN18 COM
ANA
IV1(+) IV3(+)
VDC
+24
VDC
NEUT OUT0 OUT1 OUT2 OUT4 OUT6 COM 2 OUT8 OUT9 OUT10
COM
ANA OV1
DC0
VAC
DC1
VAC
DC1
VDC2
OUT3 OUT5 OUT7 DC3
VAC
DC4
VAC
Output Terminal Block
DC5
VAC
OUT11 OV0
Wire Type
Solid wire
Stranded wire
Cu-90
°C (194°F)
Cu-90
°C (194°F)
Wiring torque = 0.791Nm (7 in-lb) rated.
Wire Size
14...22 AWG
16...22 AWG
44526
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22 MicroLogix 1400 Programmable Controllers
WARNING
If you connect or disconnect wiring while the field-side 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
The local programming terminal port is intended for temporary use only and must not be connected or disconnected unless the area is assured to be nonhazardous.
Wiring Recommendation
When wiring without spade lugs, keep the finger-safe covers in place. Loosen the terminal screw and route the wires through the opening in the finger-safe cover. Tighten the terminal screw, making sure the pressure plate secures the wire.
Finger-safe cover
44527
ATTENTION
Be careful when stripping wires. Wire fragments that fall into the controller could cause damage. Once wiring is complete, be sure the controller is free of all metal fragments before removing the protective debris strip. Failure to remove the strip before operating can cause overheating.
Publication 1766-IN001A-EN-P - July 2008
MicroLogix 1400 Programmable Controllers 23
Spade Lug Recommendation
The diameter of the terminal screw head is 5.5 mm (0.220 in.). The input and output terminals of the MicroLogix 1400 controller are designed for the following spade lugs. The terminals will accept a 6.35mm (0.25 in.) wide spade (standard for #6 screw for up to 14
AWG) or a 4 mm (metric #4) fork terminal.
When using spade lugs, use a small, flat-blade screwdriver to pry the finger-safe cover from the terminal blocks, then loosen the terminal screw.
Finger-safe cover
TIP
44528
If you wire the terminal block with the finger-safe cover removed, you may not be able to put it back on the terminal block if the wires are in the way.
Surge Suppression
ATTENTION
Inductive load devices such as motor starters and solenoids require the use of some type of surge suppression to protect the controller output. Switching inductive loads without surge suppression can significantly reduce the life of relay contacts or damage transistor outputs. By using suppression, you also reduce the effects of voltage transients caused by interrupting the current to that inductive device, and prevent electrical noise from radiating into system wiring. Refer to the MicroLogix 1400 Programmable Controller User Manual, publication 1766-UM001 , for more information on surge suppression.
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24 MicroLogix 1400 Programmable Controllers
Grounding the Controller
In solid-state control systems, grounding and wire routing helps limit the effects of noise due to electromagnetic interference (EMI). Run the ground connection from the ground screw of the controller to the ground bus prior to connecting any devices. Use AWG #14 wire. For
AC-powered controllers, this connection must be made for safety purposes.
You must also provide an acceptable grounding path for each device in your application. For more information on proper grounding guidelines, refer to the Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1
.
Wiring Your Analog Channels
Analog input circuits can monitor voltage signals and convert them to serial digital data as shown in the following illustration.
Analog Input
Sensor 2
(V) Voltage
Sensor 0
(V) Voltage
Input Terminal Block
/7 I/8 I/10 COM 3 I/13 I/15 I/17 I/19 IV0(+) IV2(+)
COM 2 I/9 I/11 I/12 I/14 I/16 I/18 COM
ANA
IV1(+) IV3(+)
Sensor 1
(V) Voltage
Sensor 3
(V) Voltage
44529
Publication 1766-IN001A-EN-P - July 2008
MicroLogix 1400 Programmable Controllers 25
The controller does not provide loop power for analog inputs. Use a power supply that matches the transmitter specifications as shown.
The analog output can support a voltage function as shown in the following illustration.
Analog Output
Voltage Load
O/3 O/4
VAC
DC5 O/7 O/8 O/10
COM
ANA OV1
3
C
DC4
VAC
O/5 O/6 DC6
VAC
O/9 O/11 OV0
Output Terminal Block
Voltage Load
Analog Input Transmitter Specifications
2-Wire Transmitter
-
+
Transmitter
+ -
3-Wire Transmitter
Power
Supply
-
+
Transmitter
Supply
GND
Signal
4-Wire Transmitter
Power
Supply
-
+
Transmitter
Supply
+
Signal
+
-
-
44680
Controller
IV0(+), IV1(+), IV2(+) or IV3(+)
COM ANA
Controller
IV0(+), IV1(+), IV2(+) or IV3(+)
COM ANA
Controller
IV0(+), IV1(+), IV2(+) or IV3(+)
COM ANA
44530
Publication 1766-IN001A-EN-P - July 2008
26 MicroLogix 1400 Programmable Controllers
Minimizing Electrical Noise on Analog Channels
Inputs on analog channels employ digital high-frequency filters that significantly reduce the effects of electrical noise on input signals. However, because of the variety of applications and environments where analog controllers are installed and operated, it is impossible to ensure that all environmental noise will be removed by the input filters.
Several specific steps can be taken to help reduce the effects of environmental noise on analog signals:
• Install the MicroLogix 1400 system in a properly rated (NEMA) enclosure. Make sure that the MicroLogix 1400 system is properly grounded.
• Use Belden cable #8761 for wiring the analog channels, making sure that the drain
• Route the Belden cable separately from any AC wiring. Additional noise immunity can be obtained by routing the cables in grounded conduit.
Grounding Your Analog Cable
Use shielded communication cable
(Belden #8761). The Belden cable has two signal wires (black and clear), one drain wire, and a foil shield. The drain wire and foil shield must be grounded at one end of the cable.
Insulation
Foil Shield
Black Wire
Drain Wire
Clear Wire
44531
IMPORTANT
Do not ground the drain wire and foil shield at both ends of the cable.
Publication 1766-IN001A-EN-P - July 2008
MicroLogix 1400 Programmable Controllers 27
Specifications
General Specifications
Description
Dimensions
HxWxD
Shipping weight
Number of I/O
Power supply voltage
Heat dissipation
Power supply inrush current
Power consumption
24V DC sensor power
Input circuit type
Output circuit type
Enclosure type rating
Wire size
Wiring category
Terminal screw torque
Pilot duty rating
Expansion bus
(1)
1766-L32AWAA
90 x 180 x 87 mm
3.5 x 7.087 x 3.43 in.
1766-L32BWAA 1766-L32BXBA
0.9 kg (2.0 lbs)
24 inputs (20 digital and 4 analog) and 14 outputs (12 digital and 2 analog)
100...240V AC (-15%, +10%) at 47...63 Hz 24V DC (-15%, +10%)
Class 2 SELV
Refer to the MicroLogix 1400 Programmable Controllers User Manual,
Publication 1766-UM001 .
120V AC: 25 A for 8 ms
240V AC: 40A for 4 ms
100 VA 120 VA
24V DC:
15 A for 20 ms
50W none
Digital: 120V AC
Analog: 0...10V DC
Relay
None (open-style)
24V DC at 250 mA
400 µF max.
Digital: 24V DC sink/source
(standard and high-speed)
Analog: 0...10V DC none
Digital: 24V DC sink/source
(standard and high-speed)
Analog: 0...10V DC
Relay/FET
0.25... 2.5 mm
2
(22...14 AWG) solid or stranded copper wire rated at 90 °C
(194 °F ) or greater.
2 - on signal ports
2 - on power ports
3 - on communications ports
0.79 Nm (7.0 in-lb) rated
R300, C300
Supports up to seven 1762 modules, up to a maximum of 5V, 1500 mA and 24 V,
1500 mA.
T3C North American temp code
(1)
Use this Conductor Category information for planning conductor routing. Refer to Industrial Automation Wiring and
Grounding Guidelines, publication 1770-4.1
.
Publication 1766-IN001A-EN-P - July 2008
28 MicroLogix 1400 Programmable Controllers
Specifications for Inputs
Digital Inputs
Description 1766-L32AWA/A 1766-L32BWA/A, 1766-L32BXB/A
Inputs 0 through 11
(12 high-speed DC inputs)
4.5...24V DC, Class 2
Inputs 12 and higher
(8 standard DC inputs)
10...24V DC, Class 2 On-state voltage range
79 ...132 V AC
Off-state voltage range
Operating frequency
0...20 V AC
47...63 Hz
On-state current
Mininum
Nominal
Maximum
Off-State
Leakage Current
5.0 mA @ 79 V AC
12 mA @ 120 V AC
16.0 mA @ 132 V AC
2.5 mA max.
Nominal
Impedance
12 k
Ω at 50 Hz
Inrush Current
(max.) at 120V AC
10 k
Ω at 60 Hz
250mA
(4.5...26.4V DC @ 65°C/149°F)
(4.5...30V DC @ 30°C/86°F)
0...1.5V DC
0 Hz...100 kHz
7.1 mA @ 4.5V DC
9.9 mA @ 24V DC
10.5 mA @ 30V DC
0.2 mA max.
2.4 k
Ω
(10...26.4V DC @ 65°C/149°F)
(10...30V DC @ 30°C/86°F)
0...5V DC
0 Hz...1 kHz
(scan time dependent)
3.2 mA @ 10V DC
5.3 mA @ 24V DC
5.5 mA @ 30V DC
1.5 mA max.
4.5 k
Ω
Analog Inputs
Description
Voltage Input Range
Type of Data
Input Coding (0 to 10.0V DC - 1 LSB)
Voltage Input Impedance
Input Resolution
Non-linearity
Overall accurarcy
-20...+65 °C (-4...+149 °F)
Voltage input overvoltage protection
Field wiring to logic isolation
1766-L32AWAA, -L32BWAA, -L32BXBA
0 ...10.0V DC - 1 LSB
12-bit unsigned integer
0 ...4,095
>199 k
Ω
12 bit
±
1.0% of full scale
±
1.0% of full scale
10.5 V DC
Non-isolated with internal logic
Publication 1766-IN001A-EN-P - July 2008
Analog Outputs
Description
Number of inputs
Voltage output range
Type of data
Step response
Load range
Voltage output
Output resolution
Analog output setting time
Overall Accurarcy
-20...65 °C (-4...149 °F)
Electrical isolation
Cable length
MicroLogix 1400 Programmable Controllers 29
1766-L32AWAA, -L32BWAA, -L32BXBA
2 single-ended
0...10 V DC - 1 LSB
12 bit unsigned integer
2.5 ms @ 95%
1 K
Ω
12 bit
3 ms (max.)
±
1.0% of full scale
Non-isolated with internal logic
30 m (98 ft) shielded cable
Publication 1766-IN001A-EN-P - July 2008
30 MicroLogix 1400 Programmable Controllers
Specifications for Outputs in Hazardous Locations
(Class 1, Division 2, Groups A, B, C, D)
Relay and FET Outputs
Description 1766-L32AWA/A,
1766-L32BWA/A
1440 VA
1766-L32BXB/A
Maximum Controlled Load
Maximum Continuous Current:
1080 VA
Current per Channel and Group Common 2.5 A per channel
8A max channel 8...11 common
Current per Controller at 150V max 28 A or total of per-point loads, whichever is less
2.5 A per channel at 240V max 20 A or total of per-point loads, whichever is less
Relay Outputs
Description
Turn On Time/Turn Off Time
Load Current
(1)
Scan time dependent
1766-L32AWA/A, 1766-L32BWA/A, 1766-L32BXB/A
10 msec (maximum)
(1)
10 mA (minimum)
Maximum Volts
240V AC
120V AC
250V DC
125V DC
Amperes
Make
7.5 A
15.0 A
Break
0.75 A
1.5 A
0.11 A
0.22 A
Amperes
Continuous
3.0 A
3.0 A
1.0 A
1.0 A
Volt-Amperes
Make
1800 VA
1800 VA
Break
180 VA
180 VA
28 VA
28 VA
Publication 1766-IN001A-EN-P - July 2008
MicroLogix 1400 Programmable Controllers 31
Specifications for Outputs in (Non-Hazardous) Locations only
1766-L32BXB, 1766-L32BXBA FET Output
Maximum Output Current (temperature dependent):
FET Current per Point FET Total Current
2.0
1.75
1.5
1.25
1.0
0.75
0.5
0.25
1.5A, 30°C (86°F)
0.75A, 60°C (140°F)
10°C
(50°F)
Valid
Range
30°C
(86°F)
50°C
(122°F)
Temperature
70°C
(158°F)
80°C
(176°F)
44532
5.0
4.0
3.0
2.0
1.0
8.0
7.0
6.0
6.0A , 30°C (86°F)
Valid
Range
3.0A , 60°C (140°F)
10°C
(50°F)
30°C
(86°F)
50°C
(122°F)
Temperature
70°C
(158°F)
80°C
(176°F)
44533
Description General Operation
High Speed Operation
(1)
(Output 2, 3 and 4 Only)
24V DC (-15%, 10%) Class 2 Power Supply Voltage
On-State Voltage Drop: at maximum load current at maximum surge current
Current Rating per Point maximum load minimum load maximum leakage
Surge Current per Point: peak current maximum surge duration maximum rate of repetition at 30 °C (86 °F) maximum rate of repetition at 65 °C (149 °F)
Turn-On Time (maximum)
Turn-Off Time (maximum)
1V DC
2.5V DC
See graphs below
1.0 mA
1.0 mA
4.0 A
10 ms once every second once every 2 seconds
11
μs
89
μs
Not Applicable
Not Applicable
100 mA
20 mA
1.0 mA
Not Applicable
Not Applicable
Not Applicable
Not Applicable
28 ns
2.3
μs
(1)
Output 2, 3 and 4 are designed to provide increased functionality over the other FET outputs. Output 2, 3 and 4 may be used like the other FET transistor outputs, but in addition, within a limited current range, they may be operated at a higher speed.
Output 2, 3 and 4 also provide a pulse train output (PTO) or pulse width modulation output (PWM) function.
Publication 1766-IN001A-EN-P - July 2008
32 MicroLogix 1400 Programmable Controllers
Working Voltage
Working Voltage for 1766-L32AWA/A
Description
Power Supply Input to
Backplane Isolation
Input Group to Backplane
Isolation
Input Group to Input Group
Isolation
Output Group to Backplane
Isolation
Output Group to Output
Group Isolation
Recommendation
Verified by one of the following dielectric tests: 1836V AC for 1 second or
2596V DC for 1 second
265V AC Working Voltage (IEC Class 2 reinforced insulation)
Verified by one of the following dielectric tests:1517V AC for 1 second or
2145V DC for 1 second
132V AC Working Voltage (IEC Class 2 reinforced insulation)
Verified by one of the following dielectric tests:1517V AC for 1 second or
2145V DC for 1 second
132V AC Working Voltage (basic insulation)
Verified by one of the following dielectric tests: 1836V AC for 1 second or
2596V DC for 1 second
265V AC Working Voltage (IEC Class 2 reinforced insulation)
Verified by one of the following dielectric tests: 1836V AC for 1 second or
2596V DC for 1second
265V AC Working Voltage (basic insulation), 150V AC Working Voltage (IEC
Class 2 reinforced insulation)
Working Voltage for 1766-L32BWA/A
Description
Power Supply Input to
Backplane Isolation
Input Group to Backplane
Isolation and Input Group to
Input Group Isolation
Recommendation
Verified by one of the following dielectric tests:1836V AC for 1 second or
2596V DC for 1 second
265V AC Working Voltage (IEC Class 2 reinforced insulation)
Verified by one of the following dielectric tests: 1100V AC for 1 second or
1697V DC for 1 second
Output Group to Backplane
Isolation
75V DC Working Voltage (IEC Class 2 reinforced insulation)
Verified by one of the following dielectric tests: 1836V AC for 1 second or
2596V DC for 1 second
Output Group to Output
Group Isolation
265V AC Working Voltage (IEC Class 2 reinforced insulation).
Verified by one of the following dielectric tests: 1836V AC for 1 second or
2596V DC for 1 second
265V AC Working Voltage (basic insulation) 150V Working Voltage (IEC Class 2 reinforced insulation)
Publication 1766-IN001A-EN-P - July 2008
MicroLogix 1400 Programmable Controllers 33
Working Voltage for 1766-L16BXB/A
Description
Input Group to Backplane
Isolation and Input Group to
Input Group Isolation
FET Output Group to
Backplane Isolation
Recommendation
Verified by one of the following dielectric tests: 1100V AC for 1 second or
1697V DC for 1 second
75V DC Working Voltage (IEC Class 2 reinforced insulation)
Verified by one of the following dielectric tests: 1100V AC for 1 second or
1697V DC for 1 second
Relay Output Group to
Backplane Isolation
75V DC Working Voltage (IEC Class 2 reinforced insulation)
Verified by one of the following dielectric tests: 1836V AC for 1 second or
2596V DC for 1 second
Relay Output Group to Relay
Output Group and FET
Output Group Isolation
265V AC Working Voltage (IEC Class 2 reinforced insulation)
Verified by one of the following dielectric tests: 1836V AC for 1 second or
2596V DC for 1 second
265V AC Working Voltage (basic insulation), 150V Working Voltage
(IEC Class 2 reinforced insulation)
Environmental Specifications
Description
Vibration
1766-L32AWA/A 1766-L32BWA/A 1766-L32BXB/A
Temperature, operating 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... 60 °C (-4 ...140 °F)
Temperature, storage IEC 60068-2-1 (Test Ab, Unpackaged Non-operating Cold),
IEC 60068-2-2 (Test Bb, Unpackaged Non-operating Dry Heat),
IEC 60068-2-14 (Test Na, Unpackaged Non-operating Thermal Shock):
-40…85 °C (-40…185 °F)-40...85 °C (-40... 185 °F)
Relative humidity IEC 60068-2-30 (Test Db, Unpackaged Damp Heat):
5...95% non-condensing
IEC 60068-2-6 (Test Fc, Operating):
5g @ 10... 500 Hz
Shock, operating
Shock, nonoperating
Emissions
IEC 60068-2-27 (Test Ea, Unpackaged Shock):
30 g
IEC 60068-2-27 (Test Ea, Unpackaged Shock):
Panel mount - 50 g
DIN mount - 40 g
CISPR 11
Group 1, Class A
Publication 1766-IN001A-EN-P - July 2008
34 MicroLogix 1400 Programmable Controllers
Description
ESD immunity
1766-L32AWA/A
IEC 61000-4-2:
4 kV contact discharges
8 kV air discharges
1766-L32BWA/A 1766-L32BXB/A
Radiated RF immunity IEC 61000-4-3:
10V/m with 1 kHz sine-wave 80% AM from 80…1000 MHz
3 V/m with 1 kHz sine-wave 80% AM from 1.4...2.0 GHz
1 V/m with 1 kHz sine-wave 80% AM from 2.0...2.7 GHz
EFT/B immunity IEC 61000-4-4:
±2 kV at 5 kHz on power ports
±2 kV at 5 kHz on signal ports
±1 kV at 5 kHz on communications ports
Surge transient immunity
IEC 61000-4-5:
±1 kV line-line(DM) and ±2 kV line-earth(CM) on AC power ports
±1 kV line-line(DM) and ±2 kV line-earth(CM) on signal ports
±1 kV line-earth(CM) on communications ports
Conducted RF immunity IEC 61000-4-6:
10V rms with 1 kHz sine-wave 80% AM from 150 kHz...80 MHz
Voltage Variation IEC 6100-4-11:
60% dip for 10 periods on AC supply ports
30% dips for 25 periods at 0
° and 180° on AC supply ports
100% dip for 250 periods at 0
° and 180° on AC supply ports
100% dip for 0.5 periods, arbitrary angle, on AC supply ports
Publication 1766-IN001A-EN-P - July 2008
MicroLogix 1400 Programmable Controllers 35
Certifications for 1766-32AWA/A, 1766-L32BWA/A,
1766-L32BXB/A
Certification (when product is marked)
(1)
UL
Value
CE
C-Tick
UL Listed for Class I, Division 2 Group A,B,C,D Hazardous Locations.
See UL File E10314.
European Union 2004/108/EC EMC Directive, compliant with:
EN 61000-6-2; Industrial Immunity
EN 61000-6-4; Industrial Emissions
EN 61131-2; Programmable Controllers (Clause 8, Zone A & B)
EN 61131-2; Programmable Controllers (Clause 11)
Australian Radiocommunications Act, compliant with:
AS/NZS CISPR 11; Industrial Emissions
(1)
See the Product Certification link at http://www.ab.com
for Declaration of Conformity, Certificates, and other certification details.
Publication 1766-IN001A-EN-P - July 2008
36 MicroLogix 1400 Programmable Controllers
Publication 1766-IN001A-EN-P - July 2008
100.06 mm
(3.939 in.)
0.164
180.0 mm
(7.087 in.)
165.8 mm
(6.528 in.)
DIN rail center line.
Ligne médiane du rail DIN.
Mittellinie der DIN-Schiene.
Línea central del riel DIN.
Linea centrale della guida DIN.
linha de centro do trilho DIN.
1766-L32AWA, 1766-L32AWAA
1766-L32BWA, 1766-L32BWAA
1766-L32BXB, 1766-L32BXBA
25.81 mm
(1.016 in.)
Expansion I/O
Extension d'E/S
E/A -
Erweiterungsmodule
Espansione dei moduli I/O
Expansión de E/S
Expansão de E/S
L32AWA L32AWAA
L32AWAA L32AWA
953203-16
L32BWA L32BWAA
L32BWAA L32BWA
953203-16
L32BXBA L32BXB
L32BXB L32BXBA
953203-16
Publication 1766-IN001A-EN-P - June 2008
Rockwell Automation Support
Rockwell Automation provides technical information on the Web to assist you in using its products. At http://support.rockwellautomation.com, you can find technical manuals, a knowledge base of FAQs, technical and application notes, sample code and links to software service packs, and a MySupport feature that you can customize to make the best use of these tools.
For an additional level of technical phone support for installation, configuration and troubleshooting, we offer TechConnect support programs. For more information, contact your local distributor or Rockwell
Automation representative, or visit http://support.rockwellautomation.com.
Installation Assistance
If you experience a problem with a hardware module within the first 24 hours of installation, please review the information that's contained in this manual. You can also contact a special Customer Support number for initial help in getting your module up and running:
United States 1.440.646.3434 Monday – Friday, 8am – 5pm EST
Outside United States Please contact your local Rockwell Automation representative for any technical support issues.
New Product Satisfaction Return
Rockwell Automation tests all of its products to ensure that they are fully operational when shipped from the manufacturing facility. However, if your product is not functioning and needs to be returned, follow these procedures.
United States Contact your distributor. You must provide a Customer Support case number (see phone number above to obtain one) to your distributor in order to complete the return process.
Outside United States Please contact your local Rockwell Automation representative for return procedure.
Allen-Bradley, Rockwell Automation, MicroLogix, and TechConnect are trademarks of Rockwell Automation, Inc.
Trademarks not belonging to Rockwell Automation are property of their respective companies.
Publication 1766-IN001A-EN-P - June 2008 PN 953203-13
Copyright © 2008 Rockwell Automation, Inc. All rights reserved. Printed in Singapore.

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Key features
- DIN rail mounting
- Panel mounting
- Expansion I/O connectivity
- Hazardous location considerations
- Surge Suppression
- Analog channel wiring
- Communication port wiring
- Battery connection and monitoring
- Input and output specs