Allen-Bradley 1794-OB16 User Manual

English
FLEX I/O is a trademark of Rockwell Automation
Publication 1794-5.3 – July 1999
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(Cat. No. 1794-OB16)
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Module Installation
This module mounts on a 1794 terminal base unit.
1. Rotate keyswitch (1) on terminal base unit (2) clockwise to position 2
as required for this type of module.
2. Make certain the flexbus connector (3) is pushed all the way to the left
to connect with the neighboring terminal base/adapter. You cannot
install the module unless the connector is fully extended.
3. Make sure that the pins on the bottom of the module are straight so
they will align properly with the connector in the terminal base unit.
4. Position the module (4) with its alignment bar (5) aligned with the
groove (6) on the terminal base.
5. Press firmly and evenly to seat the module in the terminal base unit.
The module is seated when the latching mechanism (7) is locked into
the module.
!
ATTENTION: To use this module in a complementary
I/O system, refer to your Remote I/O Adapter module
documentation.
Installation Instructions

Allen-Bradley 1794-OB16 Specifications

General

Manufacturer	Allen-Bradley
Module Type	Digital Output
Output Type	Sourcing
Number of Outputs	16
Output Voltage	24V DC
Output Current	0.5 A per point, 8 A per module
Series	1794
Communication Interface	Backplane
Product Type	Output Module
Isolation Voltage	500V AC
Operating Temperature	0-60°C
Module Location	Flex I/O
Operating Voltage	20.4 to 26.4V DC
Backplane Current	100mA at 5V DC
Current Draw	100mA at 5V DC

Summary

Installation Instructions

Module Installation Guide

Step-by-step guide for mounting the 24V dc FLEX I/O module onto a terminal base unit.

Terminal Base Unit Wiring

Wiring Procedure

Connect output wiring, common, +24V dc power, and dc return to the terminal base unit.

Wiring Diagrams

Output Configuration and Data Mapping

Output to Terminal Assignments

Table detailing output numbers, their corresponding terminals, and common connections.

Module Technical Specifications

General Technical Data

Key technical parameters including output count, voltage range, current rating, and signal delay.

CSA Hazardous Location Safety Precautions

Explosion Hazard Prevention

Warnings regarding component substitution, power handling, and connector security in hazardous areas.