Allen-Bradley B Series Installation Instructions Manual
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Allen-Bradley B Series Installation Instructions Manual

Allen-Bradley B Series Installation Instructions Manual

Ac 12-120v output module
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To The Installer
Pre-installation Considerations
Power Requirements
Initial Handling
AC (12-120V) Output Module
Cat. No. 1771-OAD Series B
Installation Instructions
This document provides information on:
important pre-installation considerations
power supply requirements
installing the module
using the indicators for troubleshooting
replacing the fuse
module specifications
The 1771-OAD Series B module is compatible with all chassis except
1771-A1, 1771-A2 and 1771-A4 chassis. Make sure no other output module
or single card block transfer module is placed in the same module group
when using 2-slot addressing. Any discrete input module may be used
within the same module group.
Your module receives its power through the 1771 I/O chassis backplane from
the chassis power supply. The module requires 295mA 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 chassis 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.

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Summary of Contents for Allen-Bradley B Series

  • Page 1 AC (12-120V) Output Module Cat. No. 1771-OAD Series B Installation Instructions To The Installer This document provides information on: important pre-installation considerations power supply requirements installing the module using the indicators for troubleshooting replacing the fuse module specifications Pre-installation Considerations The 1771-OAD Series B module is compatible with all chassis except 1771-A1, 1771-A2 and 1771-A4 chassis.
  • Page 2 Installation Instructions AC (12–120V) Output Module Cat. No. 1771-OAD Series B 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 its static-shielded bag. Installing Your Module In this section we tell you how to: change the mode of the fuse-blown jumper...
  • Page 3 Installation Instructions AC (12–120V) Output Module Cat. No. 1771-OAD Series B 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.
  • Page 4 Installation Instructions AC (12–120V) Output Module Cat. No. 1771-OAD Series B Connecting Wiring to the Output Module Connections to the output module are made to the field wiring arm (cat. no. 1771-WH) shipped with the module. An optional fused field wiring arm is available (cat.
  • Page 5 Installation Instructions AC (12–120V) Output Module Cat. No. 1771-OAD Series B Important: You can use an AC (120V) Output Module (cat. no. 1771-OAD) to directly drive terminals on an AC/DC (120V) Input Module (cat. no. 1771-IAD) (Figure 2). Figure 2 Driving an Input Module with an Output Module ac (12-120V) ac/dc (120V)

  • Page 6: Interpreting The Status Indicators

    Installation Instructions AC (12–120V) Output Module Cat. No. 1771-OAD Series B Interpreting the Status The front panel has one green module active indicator, 16 red status indicators, and one red fuse-blown indicator (Figure 3). Indicators The green module active indicator lights when: the rack power supply has properly established 5V dc, and the processor is placed in run mode When the module is in the CSI mode, the green module active indicator...

  • Page 7: Troubleshooting

    Installation Instructions AC (12–120V) Output Module Cat. No. 1771-OAD Series B Remove the module from the chassis and replace the blown fuse with a 10A, 250V rectifier fuse (1/4 x 1-1/4 inch), Littelfuse part number 322010. Replace the module in the chassis and attach the field wiring arm. Turn OFF all outputs to the module.

  • Page 8: Specifications

    Poland Portugal Puerto Rico Qatar Romania Russia–CIS Saudi Arabia Singapore Slovakia Slovenia South Africa, Republic Spain Switzerland Taiwan Thailand The Netherlands Turkey United Arab Emirates United Kingdom United States Uruguay Venezuela Yugoslavia World Headquarters, Allen-Bradley, 1201 South Second Street, Milwaukee, WI 53204 USA, Tel: (1) 414 382-2000 Fax: (1) 414 382-4444 Publication 1771-2.74 November 1993 PN 955115-84 Supersedes Publication 1771-2.74 April 1992...

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1771-oad

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