Rockwell Automation 1771-OND User Manual
Installation Instructions
AC (24V) Output Module
Cat. No. 1771-OND Series B
To The Installer
Preinstallation
Considerations
European Union Directive Compliance
This document provides information on:
• important pre-installation considerations
• power supply requirements
• installing the module
• setting the fault mode
• using the indicators for troubleshooting
• replacing the fuses
• module specifications
This module must be used with a 1771-A1B thru -A4B or later I/O
chassis. If you are using a 1771-ASB remote I/O adapter you may
use any combination of I/O modules. Otherwise, make sure no other
output module or single card block transfer module is placed in the
same I/O group.
If this product has the CE mark it is approved for installation within
the European Union and EEA regions. It has been designed and
tested to meet the following directives.
EMC Directive
This product is tested to meet Council Directive 89/336/EEC
Electromagnetic Compatibility (EMC) and the following standards,
in whole or in part, documented in a technical construction file:
• EN 50081-2EMC – Generic Emission Standard, Part 2 –
Industrial Environment
• EN 50082-2EMC – Generic Immunity Standard, Part 2 –
Industrial Environment
This product is intended for use in an industrial environment.
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AC (24V) Output Module2
Low Voltage Directive
This product is tested to meet Council Directive 73/23/EEC
Low Voltage, by applying the safety requirements of EN 61131–2
Programmable Controllers, Part 2 – Equipment Requirements and
Tests.
For specific information required by EN 61131-2, see the appropriate
sections in this publication, as well as the following Allen-Bradley
publications:
• Industrial Automation Wiring and Grounding Guidelines For
Noise Immunity, publication 1770-4.1
• Guidelines for Handling Lithium Batteries, publication AG-5.4
• Automation Systems Catalog, publication B111
Power Requirements
Initial Handling
Your module receives its power through the 1771 I/O chassis
backplane from the chassis power supply. The module requires
700mA from the output of this supply. Add this to the requirements
of all other modules in the I/O chassis to prevent overloading the
chassis backplane and/or backplane power supply.
The ac output module is shipped in a static-shielded bag to guard
against electrostatic discharge damage. Observe the following
precautions when handling the module.
Electrostatic Discharge Damage
ATTENTION: Under some conditions, electrostatic
discharge can degrade performance or damage the
!
module. Observe the following precautions to guard
against electrostatic damage.
• Wear an approved wrist strap grounding device, or touch a
grounded object to discharge yourself before handling the
module.
• Do not touch the backplane connector or connector pins.
• If you configure or replace internal components, do not touch
other circuit components inside the module. If available, use a
static-free work station.
• When not in use, keep the module in a static-shielded bag.
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17715.41 - May 1996
AC (24V) Output Module 3
Installing Your Module
In this section we tell you how to set the fault mode selection plug,
key your I/O chassis, install your module and make your wiring
connections.
Fault Mode Selection
You may select one of two output-failure configurations (last state or
reset) by positioning a configuration plug on the bottom edge of the
printed circuit board. This configuration plug is independent of the
last state switch on the I/O chassis backplane.
To set the fault mode selection, proceed as follows:
1. Locate the fault mode selection plug at the bottom edge of the
module circuit board (Figure 1).
Figure 1
Mode Selection Plug
Fault
LS RESET
Bottom edge of circuit board
Fault Mode Selection Plug
(shown in last state position)
10673-I
2. Using your finger, slide the plug off the two posts.,
3. Carefully position the plug on two of the three posts that
correspond to your requirement.
Keying Your I/O Chassis
Use the plastic keying bands, shipped with each I/O chassis, to key
the I/O slots to accept only this type of module.
The module circuit board is slotted in two places on the rear edge.
The position of the keying bands on the backplane connector must
correspond to these slots to allow insertion of the module. You can
key any connector in an I/O chassis to receive this module except for
the left-most connector reserved for adapter or processor modules.
Place keying bands between the following numbers labeled on the
backplane connector:
• Between 20 and 22
• Between 32 and 34
You can change the position of these keys if system redesign and
rewiring makes insertion of a different module necessary.
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AC (24V) Output Module4
Installing the Output Module
To install the ac output module in your 1771 I/O chassis, follow the
steps listed below.
ATTENTION: Remove power from the 1771 I/O
chassis backplane and wiring arm before removing or
!
installing the module.
• Failure to remove power from the backplane or field
wiring arm could cause module damage, degradation
of performance, or injury.
• Failure to remove power from the backplane could
cause injury or equipment damage due to possible
unexpected operation.
1. Turn off power to the I/O chassis.
2. Place the module in the plastic tracks on the top and bottom of the
slot that guides the module into position.
3. Do not force the module into its backplane connector. Apply firm,
even pressure on the module to seat it properly.
4. Snap the chassis latch over the top of the module to secure its
position.
5. Connect the wiring arm to the module.
6. Make wiring connections to the field wiring arm as indicated in
Figure 2.
Publication
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