Allen-Bradley Micro820 User manual

Installation Instructions

Micro820 20-Point Programmable Controllers

Catalog Numbers 2080-LC20-20QWB, 2080-LC20-20QBB,

2080-LC20-20AWB, 2080-LC20-20QWBR,

2080-LC20-20QBBR, 2080-LC20-20AWBR

http://rockwellautomation.com/literature

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Table of Contents

Topic Page

Important User Information 2

Additional Resources 6

Overview 7

Status Indicators 8

Mount the Module 8

Wire the Controller 13

Specifications 15

2Micro820 20-Point Programmable Controllers

Publication 2080-IN009B-EN-P - April 2014

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://rockwellautomation.com/literature) 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.

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.

IMPORTANT

IMPORTANT: Identifies information that is critical for successful application and understanding of the

product.

Micro820 20-Point Programmable Controllers 3

Publication 2080-IN009B-EN-P - April 2014

Environment and Enclosure

Prevent Electrostatic Discharge

ATTENTION: This equipment is intended for use in a Pollution Degree 2

industrial environment, in overvoltage Category II applications (as defined in IEC

60664-1), at altitudes up to 2000 m (6562 ft) without derating.

This equipment is considered Group 1, Class A industrial equipment according to

IEC/CISPR 11. Without appropriate precautions, there may be difficulties with

electromagnetic compatibility in residential and other environments due to

conducted and radiated disturbances.

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 or be approved for the application if

nonmetallic. 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, Rockwell

Automation publication 1770-4.1, for additional installation requirements.

• NEMA Standard 250 and IEC 60529, as applicable, for explanations of the

degrees of protection provided by different types of enclosure.

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.

4Micro820 20-Point Programmable Controllers

Publication 2080-IN009B-EN-P - April 2014

North American Hazardous Location Approval

The following modules are North American Hazardous Location approved:

2080-LC20-20QWB, 2080-LC20-20QBB, 2080-LC20-20AWB, 2080-LC20-20QWBR,

2080-LC20-20QBBR, 2080-LC20-20AWBR

The following information applies when

operating this equipment in hazardous

locations:

Informations sur l’utilisation de cet

équipement en environnements

dangereux:

Products marked "CL I, DIV 2, GP A, B, C, D" are

suitable for use in Class I Division 2 Groups A, B, C, D,

Hazardous Locations and nonhazardous locations only.

Each product is supplied with markings on the rating

nameplate indicating the hazardous location

temperature code. When combining products within a

system, the most adverse temperature code (lowest

"T" number) may be used to help determine the overall

temperature code of the system. Combinations of

equipment in your system are subject to investigation

by the local Authority Having Jurisdiction at the time

of installation.

Les produits marqués "CL I, DIV 2, GP A, B, C, D" ne

conviennent qu'à une utilisation en environnements

de Classe I Division 2 Groupes A, B, C, D dangereux

et non dangereux. Chaque produit est livré avec des

marquages sur sa plaque d'identification qui

indiquent le code de température pour les

environnements dangereux. Lorsque plusieurs

produits sont combinés dans un système, le code de

température le plus défavorable (code de

température le plus faible) peut être utilisé pour

déterminer le code de température global du

système. Les combinaisons d'équipements dans le

système sont sujettes à inspection par les autorités

locales qualifiées au moment de l'installation.

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 any component 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 tout composant

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.

Micro820 20-Point Programmable Controllers 5

Publication 2080-IN009B-EN-P - April 2014

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.

•If you connect or disconnect the communications cable with power applied

to this module or any device on the network, 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.

•When used in a Class I, Division 2, hazardous location, this equipment must

be mounted in a suitable enclosure with proper wiring method that

complies with the governing electrical codes.

•Exposure to some chemicals may degrade the sealing properties of

materials used in the Relays. It is recommended that the User periodically

inspect these devices for any degradation of properties and replace the

module if degradation is found.

•If you insert or remove the plug-in 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.

Refer to the Wiring Diagram for each plug-in module for additional details

regarding removal or insertion under power.

•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.

ATTENTION:

•The serial cables are not to exceed 3.0 m (9.84 ft).

•Do not wire more than 2 conductors on any single terminal.

•Do not remove the Removable Terminal Block (RTB) until power is removed.

6Micro820 20-Point Programmable Controllers

Publication 2080-IN009B-EN-P - April 2014

Additional Resources

If you would like a manual, you can:

• download a free electronic version from the Internet:

http://rockwellautomation.com/literature

• purchase a printed manual by contacting your local Allen-Bradley distributor or

Rockwell Automation representative

ATTENTION:

•To comply with the CE Low Voltage Directive (LVD), this equipment must be

powered from a source compliant with the following: Safety Extra Low

Voltage (SELV) or Protected Extra Low Voltage (PELV).

•To comply with UL restrictions, this equipment must be powered from a

Class 2 or Limited Voltage Limited Current Source (LVLC).

•For Class I Division 2 applications, use only Class I Division 2 listed or

recognized accessories and modules approved for use within the Micro800®

platform.

ATTENTION:

•Electrostatic discharge can damage semiconductor devices inside the

module. Do not touch the connector pins or other sensitive area pins.

•Be careful when stripping wires. Wire fragments that fall into the controller

could cause damage. Once wiring is complete, make sure the controller is

free of all metal fragments.

•Do not connect directly to line voltage. Line voltage must be supplied by a

suitable, approved isolating transformer or power supply having short

circuit capacity not exceeding 100 VA maximum equivalent.

Resource Description

Micro820™ 20-point Programmable

Controllers User Manual, publication

2080-UM005

A more detailed description of how to install and use your

Micro820 programmable controller.

Micro800®Plug-in Modules User Manual,

publication 2080-UM004

Installation and wiring descriptions for the different Micro800

plug-in modules.

Micro800 AC Power Supply Installation

Instructions, publication 2080-IN001

Information on wiring and installing the optional AC power supply.

Micro820 Remote LCD Installation

Instructions, publication 2080-IN010

Information on wiring and installing the Micro800 Remote LCD,

2080-REMLCD.

Industrial Automation Wiring and

Grounding Guidelines, publication 1770-4.1

More information on proper wiring and grounding techniques.

Micro820 20-Point Programmable Controllers 7

Publication 2080-IN009B-EN-P - April 2014

Overview

The Micro820 20-point controller is an economical brick style controller with embedded inputs

and outputs. It can accommodate up to two plug-in modules, any 24V DC output power supply

that meets minimum specifications such as the optional Micro800 power supply,

2080-PS120-240VAC.

The Micro820 controller can also support a remote LCD (2080-REMLCD) through an

RS232 port. This remote LCD can be mounted on the same DIN rail as the controller.

Controller Overview

Controller Description

Description Description

1 Status indicators 7 Plug-in latch

2 Optional power supply panel mounting latch

hole

8 Plug-in screw hole

3 Optional power supply slot 9 microSD™ (Micro Secure Digital)

card slot

4 RS232/RS485 non-isolated combo

serial port

10 DIN rail mounting latch

5 Removable/fixed(1) terminal block

(1) Removable terminal blocks are available on modules with catalog numbers that end in R. Catalog numbers

that do not end in R have fixed terminal blocks.

11 RJ-45 Ethernet connector port

6 40-pin high speed plug-in connector 12 Optional power supply

46206

12345678672

8Micro820 20-Point Programmable Controllers

Publication 2080-IN009B-EN-P - April 2014

Status Indicators

Controller status LED indicators are located at the leftmost side of the controller, next to the

two plug-in slots.

Mount the Module

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.

46207

Status Indicators

Input status

Fault status

Run status

Communication status

SD status

Output status

Force status

ENET status

Micro820 20-Point Programmable Controllers 9

Publication 2080-IN009B-EN-P - April 2014

Mounting Dimensions and DIN Rail Mounting

Module Spacing

Maintain spacing from objects such as enclosure walls, wireways and adjacent equipment. Allow

50.8 mm (2.0 in.) of space on all sides for adequate ventilation. If optional accessories/modules

are attached such as the optional power supply, 2080-PS120-240VAC, make sure that there is

50.8 mm (2 in.) of space on all sides after attaching the optional parts.

DIN Rail Mounting

The module can be mounted using the following DIN rails: 35 x 7.5 mm and 35 x 15 mm (EN

50 022 - 35 x 7.5 and EN 50 022 - 35 x 15).

Before mounting the module on a DIN rail, use a flat-blade screwdriver in the DIN rail latch and

pry it downwards until it is in the unlatched position.

1. Hook the top of the DIN rail mounting area of the controller onto the DIN rail, and

then press the bottom until the controller snaps onto the DIN rail.

TIP

For environments with greater vibration and shock concerns, use the panel

mounting method, instead of DIN rail mounting.

46253

Mounting dimensions do not include mounting feet or DIN rail latches.

Measurements are in millimeters (inches).

104 (4.09) 75 (2.95)

90 (3.54)

10 Micro820 20-Point Programmable Controllers

Publication 2080-IN009B-EN-P - April 2014

2. Push the DIN rail latch back into the latched position.

To remove your controller from the DIN rail, pry the DIN rail latch downwards until it is in the

unlatched position.

Panel Mounting

The preferred mounting method is to use four M4 (#8) screws per module. Hole spacing

tolerance: ±0.4 mm (0.016 in.).

Follow these steps to install your controller using mounting screws.

1. Place the controller against the panel where you are mounting it. Make sure the

controller is spaced properly.

2. Mark drilling holes through the mounting screw holes and mounting feet then remove

the controller.

3. Drill the holes at the markings, then replace the controller and mount it. Leave the

protective debris strip in place until you have finished wiring any other devices.

Panel Mounting Dimensions

46204

86 mm

(3.39 in.)

100 mm

(3.94 in.)

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