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Installation Instructions
Cat. No. 1771-IBD Series B
Contents
Prevent Electrostatic
Discharge
Use this document as a guide when installing the catalog number
1771-IBD series B input module.
To See page
Prevent Electrostatic Discharge Below
Important Preinstallation Considerations 2
Understand Compliance to European Union Directives 2
Calculate Power Requirements 3
Set the Filter Off Delay 3
Key the Backplane Connector 3
Install the Module and Field Wiring Arm 4
Connect Wiring to the Field Wiring Arm 5
For this reference information See page
Status Indicators 6
Troubleshooting 6
CSA Hazardous Location 7
Specifications 8
This input module is sensitive to electrostatic discharge. This module
is shipped in static-shielded packaging to guard against electrostatic
discharge damage. Observe the following precautions when handling
this module.
Electrostatic Discharge Damage
ATTENTION: Electrostatic discharge can damage
integrated circuits or semiconductors if you touch
!
backplane connector pins. Follow these guidelines
when you handle the module:
• Touch a grounded object to discharge static potential
• Wear an approved wrist-strap grounding device
• Do not touch the backplane connector or
connector pins
• Do not touch circuit components inside the module
• If available, use a static-safe work station
• When not in use, keep the module in its original
static-shielded packaging
Publication 1771-5.53 – April 1999
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DC (10-30V) Input Module2
ATTENTION: This module is equipped with a plastic
cover that is unique to assembly numbers 960364-05
!
and 961344-01. (This part number is located near the
backplane edge connector pins on the component-side
of the circuit board.) Do not use this plastic cover on
any other module.
Pre-installation
Considerations
Understand Compliance to
European Union Directives
The 1771-IBD Series B module is compatible with all chassis except
1771-A1, 1771-A2, 1771-A4 chassis. Make sure no other input
module or single card block transfer module is placed in the same
module group when using 2-slot addressing. Any discrete output
module may be used within the same module group.
The 1771-IBD Series B module has a selectable off-delay filter time
of either 1ms or 6ms. To select the off-delay filter time, use the
procedure on page 3.
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
Publication
This product is intended for use in an industrial environment.
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 these 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
This equipment is classified as open equipment and must be mounted
in an enclosure during operation to provide safety protection.
1771-5.53 – April 1999
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DC (10-30V) Input Module 3
Power Requirements
Set the Filter Off Delay
Your module receives its power through the 1771 I/O chassis
backplane from the chassis power supply. The module requires
130mA from the output of this supply. To calculate the requirements
for the backplane power supply, add 130mA to the power
requirements of all other modules in the I/O chassis. Calculating the
requirements will prevent an overload to the chassis backplane
and/or backplane power supply.
The off delay filter time is preset to 1ms. To change the filter time to
6ms, do the following:
1. Turn off power to the I/O chassis.
2. Locate the off-delay filter time configuration plug on the top-left
edge of the printed circuit board as shown below.
Filter Delay Configuration Plug
6ms OFF
Top edge of circuit board
1ms OFF
Off-Delay Filter Time Jumper
(shown in 1ms off position)
3. Use your finger to slide the jumper off the 1ms position (the
4. Carefully reposition the jumper by sliding it onto the 6ms
the Backplane Connector
Place your module in any slot in the chassis
except the leftmost slot which is reserved for
processors or adapters.
ATTENTION: Observe the following
precautions when inserting or removing
!
keys:
• insert or remove keys with your fingers
• make sure that key placement is correct
Incorrect keying or the use of a tool can
result in damage to the backplane
connector and possible system faults.
module
middle post and the right post).
position (the middle post and the left post).
Position the keying bands in the backplane connectors to correspond to
the key slots on the module.
I/O chassis
Upper Connector
12636-I
Place the keying bands:
between 10 and 12
between 16 and 18
You can change the position of these bands if subsequent system design
and rewiring makes insertion of a different type of module necessary.
Publication
1771-5.53 – April 1999
11022-I