Allen-Bradley Micro850 series User manual

Installation Instructions
Micro850 48 Point Programmable Controllers
Catalog Numbers 2080-LC50-48AWB, 2080-LC50-48QWB,
2080-LC50-48QBB, 2080-LC50-48QVB, 2080-LC50-48QWBK
Catalog numbers with the suffix ‘K’ are conformal coated and their specifications are the same as non-conformal
coated catalogs.
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Table of Contents
Topic Page
Important User Information 2
Additional Resources 7
Overview 8
Controller Description 8
Status Indicator 9
Mount the Module 9
Wire the Controller 12
Specifications 14

2Micro850 48 Point Programmable Controllers
Publication 2080-IN008C-EN-P - August 2017
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.

Micro850 48 Point Programmable Controllers 3
Publication 2080-IN008C-EN-P - August 2017
Environment and Enclosure
Preventing 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 not intended for use in residential environments and may not
provide adequate protection to radio communication services in such
environments.
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.

4Micro850 48 Point Programmable Controllers
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North American Hazardous Location Approval
The following modules are North American Hazardous Location approved: 2080-LC50-48AWB,
2080-LC50-48QWB, 2080-LC50-48QBB, 2080-LC50-48QVB, 2080-LC50-48QWBK
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.

Micro850 48 Point Programmable Controllers 5
Publication 2080-IN008C-EN-P - August 2017
WARNING:
•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.
•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.
•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.
•The USB port is intended for temporary local programming purposes only
and not intended for permanent connection. If you connect or disconnect
the USB cable with power applied to this module or any device on the USB
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.
The USB port is a nonincendive field wiring connection for Class I, Division2
Groups A, B, C and D.
•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 change switch settings while power is on, an electrical arc can
occur. This could cause an explosion in hazardous location installations.
Be sure that power is removed or the area is nonhazardous before
proceeding.
•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.

6Micro850 48 Point Programmable Controllers
Publication 2080-IN008C-EN-P - August 2017
ATTENTION:
•Read this document and the documents listed in the Additional Resources
section about installation, configuration, and operation of this equipment
before you install, configure, operate, or maintain this product. Users are
required to familiarize themselves with installation and wiring instructions
in addition to requirements of all applicable codes, laws, and standards.
•Installation, adjustments, putting into service, use, assembly, disassembly,
and maintenance are required to be carried out by suitably trained personnel
in accordance with applicable code of practice.
•In case of malfunction or damage, no attempts at repair should be made.
The module should be returned to the manufacturer for repair. Do not
dismantle the module.
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).
ATTENTION:
•The USB and 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.
•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 or equivalent.
•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.

Micro850 48 Point Programmable Controllers 7
Publication 2080-IN008C-EN-P - August 2017
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:
•Electrostatic discharge can damage semiconductor devices inside the
module. Do not touch the connector pins or other sensitive areas.
•Do not remove the protective debris strips until after the controller and all
other equipment in the panel near the module are mounted and wired.
Remove strips before operating the controller. Failure to remove strips
before operating can cause overheating.
•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.
Resource Description
Micro830® and Micro850® Programmable
Controllers User Manual, publication
2080-UM002
A more detailed description of how to install and use your
Micro830 and Micro850 programmable controller.
Micro800™ AC Power Supply Installation
Instructions, publication 2080-IN001
Information on wiring and installing the optional AC power supply.
Micro800 Plug-in Modules User Manual,
publication 2080-UM004 Installation, wiring descriptions, and specifications for the
Micro800 plug-in modules.
Micro850 Expansion I/O Modules User
Manual, publication 2080-UM003 nstallation, wiring descriptions, and specifications for the
Micro850 expansion I/O modules.
Industrial Automation Wiring and
Grounding Guidelines, publication 1770-4.1 More information on proper wiring and grounding techniques.

8Micro850 48 Point Programmable Controllers
Publication 2080-IN008C-EN-P - August 2017
Overview
The Micro850 48-point controller is an expandable brick style controller with embedded inputs
and outputs. It can accommodate up to five plug-in modules and accommodates any 24V DC
output power supply that meets minimum specifications such as the optional Micro800 power
supply, 2080-PS120-240VAC.
Controller Overview
Controller Description
Description Description
1 Status indicators 9 Expansion I/O slot cover
2 Optional power supply slot 10 DIN rail mounting latch
3 Plug-in latch 11 Mode switch
4 Plug-in screw hole 12 Type B connector USB port
5 40 pin high speed plug-in connector 13 RS232/RS485 non-isolated combo
serial port
6 Removable I/O terminal block 14 RJ-45 EtherNet/IP connector (with
embedded yellow and green LEDs)
7 Right-side cover 15 Optional AC power supply
(for example: 2080-PS120-240VAC)
8 Mounting screw hole / mounting foot
45915
12345868
7
9
8
10
611
12
13
14
15

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Publication 2080-IN008C-EN-P - August 2017
Status Indicator
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.
Mounting Dimensions and DIN Rail Mounting
45037
Input status
Run status
Force status
Network status
Fault status
Serial communications
status
Module status
Output status
Power status
45916
238 mm (9.37 in.)
80 mm
(3.15 in.)
90 mm
(3.54 in.)
Mounting dimensions do not include mounting feet or DIN rail latches.

10 Micro850 48 Point Programmable Controllers
Publication 2080-IN008C-EN-P - August 2017
Module Spacing
Maintain spacing from objects such as enclosure walls, wireways and adjacent equipment. Allow
50.8 mm (2 in.) of space on all sides for adequate ventilation. If optional accessories/modules are
attached such as the power supply 2080-PS120-240VAC or expansion I/O modules, 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 x 1 mm
(EN 50 022 - 35 x 7.5).
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.
2. Push the DIN rail latch back into the latched position.
Use DIN rail end anchors (Allen-Bradley part number 1492-EA35 or 1492-EAHJ35)
for vibration or shock environments.
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 are finished wiring the controller and
any other devices.
TIP
For environments with greater vibration and shock concerns, use the panel
mounting method, instead of DIN rail mounting.