Rockwell Automation 1761-L10BWA, 1761-L16AWA, 1761-L10BWB, 1761-L10BXB, 1761-L16BWA Installation Instructions Manual

Installation Instructions

MicroLogix™ 1000 Programmable Controllers

Catalog Numbers 1761-L10BWA, -L10BWB, -L10BXB, -L16AWA, -L16BWA,

-L16BWB, -L16BBB, -L16NWA, -L16NWB, -L20AWA-5A, -L20BWA-5A,

-L20BWB-5A, -L32AAA, -L32AWA, -L32BWA, -L32BWB, -L32BBB

http://literature.rockwellautomation.com/idc/groups/literature/documents/in/
1761-in001_-mu-p.pdf

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Installation Instructions

MicroLogix™ 1000 Programmable Controllers

Catalog Numbers 1761-L10BWA, -L10BWB, -L10BXB, -L16AWA, -L16BWA,

-L16BWB, -L16BBB, -L16NWA, -L16NWB, -L20AWA-5A, -L20BWA-5A,

-L20BWB-5A, -L32AAA, -L32AWA, -L32BWA, -L32BWB, -L32BBB

Topic Page

Important User Information 4
Overview 5
Catalog Number Detail 5
Related Publications 6
Safety Considerations 7
Physical Dimensions 9
Mounting Your Controller Horizontally 10
Wiring Your Controller 13
Grounding Your Controller 15
Surge Suppression 16
Sinking and Sourcing 19
Wiring Your Analog Channels 20
Specifications 21

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Important User Information

Because of the variety of uses for the products described in this publication, those
responsible for the application and use of these products must satisfy themselves
that all necessary steps have been taken to assure that each application and use
meets all performance and safety requirements, including any applicable laws,
regulations, codes and standards. In no event will Allen-Bradley be responsible or
liable for indirect or consequential damage resulting from the use or application of
these products.

Any illustrations, charts, sample programs, and layout examples shown in this
publication are intended solely for purposes of example. Since there are many
variables and requirements associated with any particular installation, Allen-Bradley
does not assume responsibility or liability (to include intellectual property liability)
for actual use based upon the examples shown in this publication.

Allen-Bradley publication SGI-1.1, Safety Guidelines for the Application, Installation
and Maintenance of Solid-State Control (available from your local Allen-Bradley
office), describes some important differences between solid-state equipment and
electromechanical devices that should be taken into consideration when applying
products such as those described in this publication.

Reproduction of the contents of this copyrighted publication, in whole or part,
without written permission of Rockwell Automation, is prohibited.

Throughout this publication, notes may be used to make you aware of safety
considerations. The following annotations and their accompanying statements help
you to identify a potential hazard, avoid a potential hazard, and recognize the
consequences of a potential hazard:

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.

ATTENTION

!

Identifies information about practices or circumstances that
can lead to personal injury or death, property damage, or
economic loss.

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MicroLogix™ 1000 Programmable Controllers 5

Publication 1761-IN001C-EN-P - March 2008

Overview

Install your controller using these installation instructions. The only tools you
require are a Flat head or Phillips head screwdriver and drill.

Catalog Number Detail

The catalog number for the controller is composed of the following:

IMPORTANT

Identifies information that is critical for successful application
and understanding of the product.

1761 - L 20 A W A - 5 A

Analog I/O

Number of Analog I/O:
4 Inputs, 1 Output

Power Supply
A = 120/240V ac
B = 24V dc

Output Type:
A = Triac
B = 24V dc FET
W = Relay
X = Relay/24V dc FET

Bulletin Number

Controller

Number of Digital I/O

Input Type:

A = 120V ac

B = 24V dc

N = 24V ac or 24V dc

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For More Information

Related Publications

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

For Refer to this Document Pub. No.

A description on how to use your MicroLogix 1000
programmable controllers. This manual also contains
status file data and instruction set information.

MicroLogix 1000 Programmable
Controllers User Manual

1761-6.3

A procedural manual for technical personnel who use the
Allen-Bradley Hand-Held Programmer (HHP) to monitor
and develop control logic programs for the MicroLogix
1000 controller.

MicroLogix 1000 with Hand-Held
Programmer (HHP) User Manual

1761-6.2

More information on proper wiring and grounding
techniques.

Industrial Automation Wiring and
Grounding Guidelines

1770-4.1

The procedures necessary to install and connect the AIC+
and DNI.

Advanced Interface Converter
(AIC+) and DeviceNet Interface
(DNI) Installation Instructions

1761-5.11

A more detailed description on how to install and use your
AIC+ Advanced Interface Converter.

AIC+ Advanced Interface Converter
User Manual

1761-6.4

A more detailed description on how to install and use your
DeviceNet Interface.

DeviceNet Interface User Manual 1761-6.5

A more detailed description on how to install and use your
Ethernet Interface.

Ethernet Interface User Manual 1761-UM006

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MicroLogix™ 1000 Programmable Controllers 7

Publication 1761-IN001C-EN-P - March 2008

Safety Considerations

This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D or
non-hazardous locations only (when product or packing is marked).

Use only the following communication cables in Class I, Division 2, 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 and the area is
known to be non-hazardous.

• Do not connect or disconnect connectors while circuit is

live unless area is known to be non-hazardous.

• 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.

Environment Classification Communication Cable

Class I, Division 2, Hazardous Environment 1761-CBL-PM02 Series C

1761-CBL-HM02 Series C
1761-CBL-AM00 Series C
1761-CBL-AP00 Series C
2707-NC8 Series B
2707-NC9 Series B
2707-NC10 Series B
2707-NC11 Series B

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Sécurité

Cet équipement est conçu pour être utilisé dans des environnements de Classe 1,
Division 2, Groupes A, B, C, D ou non dangereux (si indiqué sur le produit ou
l'emballage).

N'utiliser que les câbles de communication suivants dans des environnements
dangereux de Classe 1, Division 2.

AVERTISSEMENT

!

Danger d'explosion :

• La substitution de composants peut rendre cet

équipement impropre à une utilisation en environnement
de Classe 1, Division 2.

• Ne pas remplacer de composants ou déconnecter

l'équipement sans s'être assuré que l'alimentation est
coupée et que l'environnement est classé non dangereux.

• Ne pas connecter ou déconnecter les connecteurs lorsque

le circuit est alimenté, à moins que l'environnement ne
soit classé non dangereux.

• Ce produit doit être installé dans un boîtier. Tous les

câbles qui lui sont connectés doivent rester dans le boîtier
ou être protégés.

Classification d'environnement Câble de communication

Environnement dangereux Classe 1, Division 2 1761-CBL-PM02 Série C

1761-CBL-HM02 Série C
1761-CBL-AM00 Série C
1761-CBL-AP00 Série C
2707-NC8 Série B
2707-NC9 Série B
2707-NC10 Série B
2707-NC11 Série B

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MicroLogix™ 1000 Programmable Controllers 9

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Physical Dimensions

Controller Spacing

The following figure shows the recommended minimum spacing for the controller.

Note: The controller is shown horizontally mounted.

Controller: 1761- Length: mm (in.) Depth: mm (in.) Height: mm (in.)

L10BWA 120 (4.72) 73 (2.87) 80 (3.15)
L16BWA
L16NWA
L16AWA 133 (5.24)
L20AWA-5A 200 (7.87)
L20BWA-5A
L32AWA
L32BWA
L32AAA
L10BWB 120 (4.72) 40 (1.57)
L10BXB
L16BBB
L16BWB
L16NWB
L20BWB-5A 200 (7.87)
L32BBB
L32BWB

B

A

B

A

A. Greater than or equal to 50.8 mm (2 in.)

B. Greater than or equal to 50.8 mm (2 in.)

Top

Bottom

SideSide Side

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Mounting Your Controller Horizontally

The controller should be mounted horizontally within an enclosure using either the
DIN rail or mounting screw option. Use the mounting template from the front of
this document to help you space and mount the controller properly.

Using a DIN Rail

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. Refer to the mounting template
from the back of this document.)

2. Hook the top slot over the DIN rail.

3. While pressing the controller against the rail,

snap the controller into position.

4. Leave the protective wrap attached until you

are finished wiring the controller.

ATTENTION

!

Be careful of metal chips when drilling mounting holes for
your controller. Drilled fragments that fall into the controller
could cause damage. Do not drill holes above a mounted
controller if the protective wrap is removed.

Mounting
Templa te

Protective
Wrap

DIN Rail

Side View

A

B

C

Call-out Dimension

A 84 mm (3.3 in.)
B 33 mm (1.3 in.) maximum
C 16 mm (0.63 in.)

DIN Rail

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To remove your controller from the DIN
rail:

1. Place a screwdriver in the DIN rail latch at the

bottom of the controller.

2. Holding the controller, pry downward on the

latch until the controller is released from the
DIN rail.

Using Mounting Screws

To install your controller using
mounting screws:

1. Remove the mounting template from the

back of this document.

2. Secure the template to the mounting

surface. (Make sure your controller is
spaced properly.)

3. Drill holes through the template.

4. Remove the mounting template.

5. Mount the controller.

6. Leave the protective wrap attached until you are finished wiring the controller.

Mounting Your Controller Vertically

Your controller can also be mounted vertically within an enclosure using mounting
screws or a DIN rail. To insure the stability of your controller, we recommend
using mounting screws. For additional information, refer to the previous section.

To insure the controller's reliability, the following environmental specifications must
not be exceeded.

DIN Rail

Side View

Mounting
Tem pl at e

Protective
Wrap

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Note: When mounting your controller vertically, the nameplate should be facing
downward.

A

A

A

A

Description: Specification:

Operating Temperature

0°C to +40°C (+32°F to +113°F)

(1)

Operating Shock

(Panel mounted)

9.0g peak acceleration (11 ± 1 ms duration)

3 times each direction, each axis

Operating Shock

(DIN rail mounted)

7.0g peak acceleration (11 ± 1 ms duration)

3 times each direction, each axis

(1)

DC input voltage derated linearly from +30°C (30V to 26.4V).

A. Greater than or equal to 50.8 mm (2 in.).

Top

Side

Bottom

Side

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Wiring Your Controller

We recommend using either of these AMP (or equal) spade lugs: part number
53120-1, if using 22-16 AWG, or part number 53123-1, if using 16-14 AWG.

Wire Type: Wire Size: (2 wire maximum per terminal screw)

Solid #14 to #22 AWG
Stranded #16 to #22 AWG

IMPORTANT

The diameter of the terminal screw head is 5.5 mm (0.220 in.).
The input and output terminals of the MicroLogix 1000 controller
are designed for the following spade lugs:

Call-out Dimension

C 6.35 mm (0.250 in.)
E 10.95 mm (0.431 in.) maximum
L 14.63 mm (0.576 in.)
W 6.35 (0.250 in.)
X 3.56 mm (0.140 in.)
C + X 9.91 mm (0.390 in.) maximum

C

X

E

L

W

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IMPORTANT

If you use wires without lugs, make sure the wires are securely
captured by the pressure plate. This is particularly important at
the four end terminal positions where the pressure plate does not
touch the outside wall of the controller.

IMPORTANT

Be careful when stripping wires. Wire fragments that fall into the
controller could cause damage. Remove the protective wrap after
wiring your controller. Failure to remove the wrap may cause the
controller to overheat.

IMPORTANT

This symbol denotes a functional earth ground terminal

which provides a low impedance path between electrical
circuits and earth for non-safety purposes, such as noise
immunity improvement.

Protective
Wrap

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Grounding Your Controller

In solid-state control systems, grounding helps limit the effects of noise due to
electromagnetic interference (EMI). Run the ground connection from the ground
screw of the controller (third screw from left on output terminal rung) to the
ground bus. Use the heaviest wire gauge listed for wiring your controller.

You must also provide an acceptable grounding path for each device in your
application. For more information on proper grounding guidelines, see the
Industrial Automation Wiring and Grounding Guidelines, (publication 1770-4.1).

ATTENTION

!

All devices connected to the user 24V power supply or to the
RS-232 channel must be referenced to chassis ground or
floating. Failure to follow this procedure may result in
property damage or personal injury.

Chassis ground, user 24V ground, and the RS-232 ground are
internally connected. You must connect the chassis ground
terminal screw to chassis ground prior to connecting any
devices.

On the 1761-L10BWB, -L10BXB, -L16BWB, -L16BBB,

-L16NWB, -L20BWB-5A, -L32BBB, and -L32BWB controllers,
the ground associated with the user supplied 24V DC input
power and chassis ground are internally connected.

Protective Wrap
(remove after wiring)

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Publication 1761-IN001C-EN-P - March 2008

Surge Suppression

Inductive load devices such as motor starters and solenoids require the use of some
type of surge suppression to protect the controller output contacts. Switching
inductive loads without surge suppression can significantly reduce the life
expectancy of relay contacts. By adding a suppression device directly across the
coil of inductive devices, you prolong the life of the output circuits. You also
reduce the effects of radiated voltage transients and prevent electrical noise from
radiating into system wiring and facility.

The following diagram shows an output with a suppression device. We
recommend that you locate the suppression device as close as possible to the load
device.

If you connect a micro controller FET output to an inductive load, we recommend
that you use an 1N4004 diode for surge suppression, as shown in the illustration on
page 17.

VAC/DC

Out 0
Out 1

Out 2
Out 3

Out 4
Out 5

Out 6

Out 7

COM

+dc or L1

Suppression Device

dc COM or L2

ac or dc
Outputs

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Suitable surge suppression methods for inductive load devices include a varistor, an
RC network, or, for dc loads, a diode. These components must be appropriately
rated to suppress the switching transient characteristic of the particular inductive
device. See the table on page 18 for recommended suppressors.

As the following diagram illustrates, these surge suppression circuits connect
directly across the load device. This reduces arcing and damage of the output
contacts. (High transients can cause arcing that occurs when switching off an
inductive device.)

If you connect a micro controller triac output to control an inductive load, we
recommend that you use varistors to suppress noise. Choose a varistor that is
appropriate for the application. The suppressors we recommend for triac outputs
when switching 120V ac inductive loads are a Harris MOV, part number V175
LA10A, or an Allen-Bradley MOV, catalog number 599-K04 or 599-KA04. Consult
the varistor manufacturer's data sheet when selecting a varistor for your application.

For inductive dc load devices, a diode is suitable. A 1N4004 diode is acceptable for
most applications. A surge suppressor can also be used. See the table on page 18
for recommended suppressors.

Surge Suppression for Inductive ac Load Devices

Output Device

Output Device

Output Device

Varistor

RC Network

Diode (A surge suppressor
can also be used.)

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Recommended Surge Suppressors

We recommend the Allen-Bradley surge suppressors shown in the following table
for use with Allen-Bradley relays, contactors, and starters.

Device Coil Voltage Suppressor Catalog

Number

Bulletin 509 Motor Starter
Bulletin 509 Motor Starter

120V ac
240V ac

599-K04

(1)

599-KA04

(1)

(1)

Varistor – Not recommended for use on relay outputs.

Bulletin 100 Contactor
Bulletin 100 Contactor

120V ac
240V ac

199-FSMA1

(2)

199-FSMA2

(2)

(2)

RC Type – Do not use with triac outputs.

Bulletin 709 Motor Starter 120V ac 1401-N10
Bulletin 700 Type R, RM Relays ac coil None Required
Bulletin 700 Type R Relay

Bulletin 700 Type RM Relay

12V dc
12V dc

199-FSMA9

Bulletin 700 Type R Relay
Bulletin 700 Type RM Relay

24V dc
24V dc

199-FSMA9

Bulletin 700 Type R Relay
Bulletin 700 Type RM Relay

48V dc
48V dc

199-FSMA9

Bulletin 700 Type R Relay
Bulletin 700 Type RM Relay

115-125V dc
115-125V dc

199-FSMA10

Bulletin 700 Type R Relay
Bulletin 700 Type RM Relay

230-250V dc
230-250V dc

199-FSMA11

Bulletin 700 Type N, P, or PK Relay 150V max, ac or DC

700-N24

(2)

Miscellaneous electromagnetic devices limited to
35 sealed VA

150V max, ac or DC

700-N24

(2)

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Sinking and Sourcing

Any MicroLogix 1000 DC input can be configured as sinking or sourcing depending
on how the DC COM terminal is wired.

Sinking and Sourcing Wiring Examples

1761-L32BWA

Mode: Definition:

Sinking The input energizes when high-level voltage is applied to the input terminal (active

high). Connect the power supply VDC (-) to the corresponding DC COM terminal.

Sourcing The input energizes when low-level voltage is applied to the input terminal (active low).

Connect the power supply VDC (+) to the corresponding DC COM terminal.

I/9 I/10

DC
COM

I/0 I/1 I/2 I/3 I/4 I/5 I/6 I/7 I/8 I/11 I/12 I/13 I/14 I/15 I/16 I/17 I/18 I/19

DC
COM

14-30 VDC

DC OUT

+ 24V -

VDC (+) for Sourcing

VDC (-) for Sourcing

VDC (-)
for Sinking

VDC (+) for Sinking

Sinking Inputs

Sourcing Inputs

I/9 I/10

DC
COM

I/0 I/1 I/2 I/3 I/4 I/5 I/6 I/7 I/8 I/11 I/12 I/13 I/14 I/15 I/16 I/17 I/18 I/19

DC
COM

14-30 VDC

DC OUT

+ 24V -

VDC (-) for Sinking

VDC (+)
for Sinking

VDC (-) for Sourcing

VDC (+)
for Sourcing

Sinking Inputs

Sourcing Inputs

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Wiring Your Analog Channels

Analog input circuits can monitor current and voltage signals and convert them to
serial digital data. The analog output can support either a voltage or a current
function as shown in the following illustration.

The controller does not provide loop power for analog inputs. Use a power supply
that matches the transmitter specifications as shown below.

VAC
VDC

O/4 O/5 O/6

NOT
USED

O/7

I/10 I/11

IA
(-)

IA/3
I (+)

IA/2
I (+)

IA
SHD

IA/1
V (+)

IA
SHD

IA/0
V (+)

IA
(-)

OA
(-)

OA/0
I (+)

OA/0
V (+)

OA
SHD

Sensor 1
(V) Voltage

Sensor 2
(V) Voltage

Sensor 3
(I) Current

Sensor 4
(I) Current

meter

You can configure either voltage or
current output operation.

Jumper

unused

inputs.

- or -

+-

+

-

+

-

IA/0 - 3 (+)
IA (-)

IA/0 - 3 (+)
IA (-)

+

-

+

-

GND

IA/0 - 3 (+)

IA (-)

+

-

Transmitter

Transmitter

Transmitter

Supply Signal

Supply

Signal

Controller

Controller

Controller

Power
Supply

3-Wire Transmitter

4-Wire Transmitter

2-Wire Transmitter

Power
Supply

Power
Supply

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Minimizing Electrical Noise on Analog Controllers

Inputs on analog controllers 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 1000 system in a properly rated (i.e., NEMA)

enclosure. Make sure that the MicroLogix 1000 system is properly grounded.

• use Belden cable #8761 for wiring the analog channels, making sure that the

drain wire and foil shield are properly earth grounded.

• route the Belden cable separate 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. Do not ground
the drain wire and foil shield
at both ends of the cable.

Specifications

Environmental Specifications (all MicroLogix controllers)

Description Specification

Operating Temperature 0°C to +55°C (+32°F to +131°F) for horizontal mounting

0°C to +40°C (+32°F to +104°F) for vertical mounting

(1)

Foil Shield

Black Wire

Drain Wire

Clear Wire

Insulation

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General Specifications

Storage Temperature -40°C to +85°C (-40°F to +185°F)
Operating Humidity 5 to 95% non-condensing
Agency Certification (when

product or packaging is
marked)

• C-UL Class I, Division 2 Groups A,B,C,D certified

• UL listed (Class I, Division 2 Groups A,B,C,D certified)

• CE/C-Tick compliant for all applicable directives

(1)

DC input voltage derated linearly from +30°C (30V to 26.4V).

Description: Specification: 1761-L

16AWA 32AWA 10BWA 16BWA

16NWA

32BWA 32AAA 10BXB

16BBB

10BWB
16BWB
16NWB

32BWB
32BBB

Memory Size and
Type

1 K EEPROM (approximately 737 instruction words: 437 data words)

Power Supply
Voltage

85-264V ac, 47-63 Hz 20.4-26.4V dc

Power
Supply
Usage

120V ac 15 VA 19 VA 24 VA 26 VA 29 VA 16 VA Not Applicable
240V ac 21 VA 25 VA 32 VA 33 VA 36 VA 22 VA
24V dc Not Applicable 5W 7W

Power Supply Max
Inrush Current

30A for 8 ms 30A for 4 ms

24V dc Sensor Power
(V dc at mA)

Not Applicable 200 mA Not Applicable

Max Capacitive Load
(User 24V dc)

200 µF

Power Cycles 50,000 minimum
Vibration

Operating: 5 Hz to 2k Hz, 0.381 mm (0.015 in.) peak to peak/2.5g panel mounted,

(1)

1hr
per axis
Non-operating: 5 Hz to 2k Hz, 0.762 mm (0.030 in.) peak to peak/5g, 1hr per axis

(1)

DIN rail mounted controller is 1g.

Shock

(2)

Operating: 10g peak acceleration (7.5g DIN rail mounted)

(3)

(11±1 ms duration) 3 times
each direction, each axis
Non-operating: 20g peak acceleration (11±1 ms duration), 3 times each direction, each
axis

Terminal Screw
Torque

0.9 N-m maximum (8.0 in.-lbs)

Electrostatic
Discharge

EN 61000-2 at 8K V

Radiated
Susceptibility

EN 61000-3 at 10 V/m, 27 MHz - 1000 MHz; 3V/m, 87 MHz - 108 MHz, 174 MHz - 230
MHz, and 470 MHz - 790 MHz

Fast Transient EN 61000-4 at 2K V Power Supply, I/O; 1K V Comms
Isolation 1500V ac

Description Specification

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MicroLogix™ 1000 Programmable Controllers 23

Publication 1761-IN001C-EN-P - March 2008

Analog General Specifications

General Input Specifications

(2)

Refer to page 12 for vertical mounting specifications.

(3)

Relays are derated an additional 2.5g on 32 pt. controllers.

Description: Specification: 1761-L

20AWA-5A 20BWA-5A 20BWB-5A

Memory Size and Type 1 K EEPROM (approximately 737 instruction words: 437 data words)
Power Supply Voltage 85-264V ac, 47-63 Hz 20.4-26.4V dc
Power

Supply
Usage

120V ac 20 VA 30 VA Not Applicable
240V ac 27 VA 38 VA
24V dc Not Applicable 10W

24V dc Sensor Power (V
dc at mA)

Not Applicable 200 mA Not Applicable

Max Capacitive Load
(User 24V dc)

200 µF

Power Cycles 50,000 minimum
Vibration

Operating: 5 Hz to 2k Hz, 0.381 mm (0.015 in.) peak to peak/2.5g panel mounted,

(1)

1hr
per axis
Non-operating: 5 Hz to 2k Hz, 0.762 mm (0.030 in.) peak to peak/5g, 1hr per axis

(1)

DIN rail mounted controller is 1g.

Shock

(2)

(2)

Refer to page 12 for vertical mounting specifications.

Operating: 10g peak acceleration (7.5g DIN rail mounted)

(3)

(11±1 ms duration) 3 times
each direction, each axis
Non-operating: 20g peak acceleration (11±1 ms duration), 3 times each direction,
each axis

(3)

Relays are derated an additional 2.5g on 20 pt. controllers.

Terminal Screw Torque 0.9 N-m maximum (8.0 in.-lbs)
Electrostatic Discharge EN 61000-2 at 8K V Discrete I/O

4K V Contact, 8K V Air for Analog I/O

Radiated Susceptibility EN 61000-3 at 10 V/m, 27 MHz - 1000 MHz

3 V/m, 87 MHz - 108 MHz, 174 MHz - 230 MHz, and 470 MHz - 790 MHz

Fast Transient EN 61000-4 at 2K V Power Supply, I/O; 1K V Comms
Isolation 1500V ac

Description Specification

100-120V ac Controllers 24V dc Controllers

Voltage Range 79 to 132V ac, 47 to 63 Hz 14 to 30V dc
On Voltage 79V ac min.

132V ac max.

14V dc min.
24V dc nominal

26.4V dc max. at +55°C (+131°F)

30.0V dc max. at +30°C (+86°F)

Off Voltage 20V ac 5V dc

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24 MicroLogix™ 1000 Programmable Controllers

Publication 1761-IN001C-EN-P - March 2008

AC/DC Input Specifications for 1761-L16NWA and 1761-L16NWB

Analog Input Specifications

On Current 5.0 mA min. at 79V ac 47 Hz

12.0 mA nominal at 120V ac 60 Hz

16.0 mA max. at 132V ac 63 Hz

2.5 mA min. at 14V dc

8.0 mA nominal at 24V dc

12.0 mA max. at 30V dc
Off Current 2.5 mA max. 1.5 mA max.
Nominal Impedance 12K ohms at 50 Hz

10K ohms at 60 Hz

3K ohms

Inrush Maximum

250 mA max.

(1)

Not Applicable

(1)

To reduce the inrush maximum to 35 mA, apply a 6.8K ohm, 5W resistor in series with the input. The on-state voltage
increases to 92V ac as a result

Specification

(1)

(1)

Input circuits may be operated ac or dc on a group basis only.

AC Excitation

(2)

(2)

All ac specifications are sinusoidal RMS values.

DC Excitation

On State Voltage Minimum 18V ac 14V dc

Nominal 24V ac 24V dc
Maximum 26.4V ac at 55°C (131°F)

30V ac at 30°C (86°F)

26.4V dc at 55°C (131°F)
30V dc at 30°C (86°F)

On State Current Minimum 3.0 mA at 18V ac 2.5 mA at 14V dc

Nominal 8.0 mA at 24V ac 8.0 mA at 24V dc
Maximum 12 mA at 30V ac 12 mA at 30V dc

Off State Voltage Minimum 0.0V ac 0.0V dc

Maximum 3.0V ac 5.0V dc
Off State Current Minimum 1.0 mA 1.5 mA
Frequency Nominal 50/60 Hz see Turn On Time/Turn Off Time

Range 47 to 63 Hz
Turn On Time

(3)

(3)

Turn On and Turn Off Times are not adjustable.

Minimum 2 ms 2 ms

Maximum 20 ms 20 ms
Turn Off Time

(3)

Minimum 10 ms 10 ms

Maximum 20 ms 20 ms

Description Specification

Voltage Input Range -10.5 to +10.5V dc - 1LSB
Current Input Range -21 to +21 mA - 1LSB
Type of Data 16-bit signed integer
Input Coding -21 to +21 mA - 1LSB, -10.5 to +10.5V dc - 1 LSB -32,768 to +32,767

Description Specification

100-120V ac Controllers 24V dc Controllers

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MicroLogix™ 1000 Programmable Controllers 25

Publication 1761-IN001C-EN-P - March 2008

Analog Input Update Rates

General Output Specifications

Voltage Input Impedance 210K Ω
Current Input Impedance 160Ω

Input Resolution

(1)

16 bit

Non-linearity 0.002%
Overall Accuracy 0°C to +55°C ±.0.7% of full scale
Overall Accuracy Drift 0°C to +55°C (max.) ±0.176%
Overall Error at +25°C (+77°F) (max.) ±0.525%
Voltage Input Overvoltage Protection 24V dc
Current Input Overcurrent Protection ±50 mA
Input to Output Isolation 30V rated working/500V isolation
Field Wiring to Logic Isolation

(1)

The analog input update rate and input resolution are a function of the input filter selection.

Programmable Filter Characteristics
1st Notch Freq (Hz) Filter Bandwidth

(-3 dB Freq Hz)

Update Time
(mSec)

(1)

(1)

The total update time for each channel is a combination of the Update Time and the Settling Time. When more than one
analog input channel is enabled, the maximum update for each channel is equal to one ladder scan time plus the channel's
Update Time plus Settling Time. When only one analog input channel is enabled, the maximum update for the channel is
equal to the Update Time plus one ladder scan time for all except the first update after Going to Run (GTR). The first update
time is increased by the Settling Time.

Settling Time
(mSec)

(1)

Resolution

(Bits)

10 2.62 100.00 400.00 16
50 13.10 20.00 80.00 16

60

(2)

(2)

60 Hz is the default setting.

15.72 16.67 66.67 16

250 65.50 4.00 16.00 15

Type Relay MOSFET Triac

Voltage See Wiring Diagrams, p. 121.
Max Load Current See Relay

Contact
Ratings on
page 26.

1.0A per point at +55° C (+131° F)

1.5A per point at +30° C (+86° F)

0.5A per point at +55° C (131° F)

1.0A per point at +30° C (86° F)

Min Load Current 10.0 mA 1 mA 10.0 mA
Current per Controller 1440 VA 3A for L16BBB

6A for L32BBB

1440 VA

Current per Common 8.0A 3A for L16BBB

6A for L32BBB

Not Applicable

Max Off State Leakage
Current

0 mA 1 mA 2 mA at 132V ac

4.5 mA at 264V ac

Description Specification

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26 MicroLogix™ 1000 Programmable Controllers

Publication 1761-IN001C-EN-P - March 2008

Relay Contact Rating Table

Analog Output Specifications

Off to On Response 10 ms max. 0.1 ms 8.8 ms at 60 Hz

10.6 ms at 50 Hz
On to Off Response 10 ms max. 1 ms 11.0 ms
Surge Current per Point Not Applicable

4A for 10 ms

(1)

10A for 25 ms

(1)

(1)

Repeatability is once every 2 seconds at +55° C (+131° F).

Maximum
Volts

Amperes Amperes

Continuous

Voltamperes

Make Break Make Break

240V ac 7.5A 0.75A 2.5A 1800 VA 180 VA
120V ac 15A 1.5A
125V dc

0.22A

(1)

(1)

For dc voltage applications, the make/break ampere rating for relay contacts can be determined by dividing 28 VA by the
applied dc voltage. For example, 28 VA ÷ 48V dc = 0.58A. For dc voltage applications less than 48V, the make/break ratings
for relay contacts cannot exceed 2A. For dc voltage applications greater than 48V, the make/break ratings for relay contacts
cannot exceed 1A.

1.0A 28 VA

24V dc

1.2A

(1)

2.0A

Description Specification

Voltage Output Range 0 to 10V dc -1LSB
Current Output Range 4 to 20 mA - 1LSB
Type of Data 16-bit signed integer
Non-linearity 0.02%
Step Response 2.5 ms (at 95%)
Load Range - Voltage Output 1K Ω to ∞ Ω
Load Range - Current Output 0 to 500 Ω
Output Coding 4 to 20 mA - 1 LSB, 0 to 10V dc - 1LSB 0 to 32,767
Voltage Output Miswiring can withstand short circuit
Current Output Miswiring can withstand short circuit
Output Resolution 15 bit
Analog Output Settling Time 3 msec (maximum)
Overall Accuracy 0°C to +55°C ±1.0% of full scale
Overall Accuracy Drift 0°C to +55°C (max.) ±0.28%
Overall Error at +25°C (+77°F) (max.) 0.2%
Field Wiring to Logic Isolation 30V rated working/500V isolation

Type Relay MOSFET Triac

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MicroLogix™ 1000 Programmable Controllers 27

Publication 1761-IN001C-EN-P - March 2008

Notes:

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28 MicroLogix™ 1000 Programmable Controllers

Publication 1761-IN001C-EN-P - March 2008

Notes:

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Mounting Template

192 mm
(7.55 in.)

112 mm
(4.41 in.)

80 mm
(3.15 in.)

72 mm
(2.83 in.)

120 mm
(4.72 in.)

133 mm
(5.24 in.)

200 mm
(7.87 in.)

125 mm
(4.92 in.)

1761-L16BWA, -L16BWB, -L16BBB1761-L10BWA, -L10BWB, -L10BXB, -L16NWA, -L16NWB

1761-L16AWA

1761-L32AWA

Use this template to install your controller. For more
information about your controller, refer to the first
page of your native language section.

Servez-vous de ce gabarit pour installer votre auto­mate. Reportez-vous ƒ la premiŠre page de la sec­tion en fran†ais pour de plus amples informations
concernant votre automate.

Installieren Sie die Steuerung mit Hilfe dieser Scha­blone. Weitere Informationen ˜ber die Steuerung
befinden sich auf der ersten Seite des in deutscher
Sprache abgefaûten Abschnitts.

Usate questa maschera per installare il controllore.
Per ulteriori informazioni sul controllore, fate riferi­mento alla prima pagina della sezione nella vostra
lingua.

Use esta plantilla para instalar su controlador. Para
obtener m s informaci n sobre su controlador ,
consulte la primera p gina de la secci n en su
idioma nativo.

1761-L32BWA 1761-L32BWB

1761-L20AWA-5A

1761-L32AAA

1761-L20BWA-5A

1761-L32BBB

1761-L20BWB-5A

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Publication 1761-IN001C-EN-P - March 2008 PN 40072-057-01(4)

Supersedes Publication 1761-IN001B-EN-P - September 2007 Copyright © 2008 Rockwell Automation, Inc. All rights reserved. Printed in Singapore.

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:

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 1.440.646.3434

Monday – Friday, 8am – 5pm EST

Outside United States Please contact your local Rockwell Automation representative for any technical

support issues.

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.

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