Install Your Flex I/O Frequency Input Module; Overview; Before You Install Your Module; Power Requirements - Rockwell Automation Allen-Bradley 1794-IJ2XT User Manual

Overview

Before You Install
Your Module

Power Requirements

13

Install Your FLEX I/O Frequency Input Module

This chapter provides you with pre-installation requirements and instructions
on how to install your FLEX I/O Frequency Input modules.
Topic

Before You Install Your Module

Power Requirements
Install the Module
Mount on a DIN Rail
Mount on a Panel or Wall
Mount the Frequency Input Module on the Terminal Base Unit
Wiring Information
Connect Wiring to the FLEX I/O Frequency Input Module
Connecting Wiring Using a 1794-TB3G, 1794-TB3GK or 1794-TB3GS
Terminal Base Unit
Resolution and Accuracy
Examples of Wiring to a 1794-TB3G Terminal Base Unit
Chapter Summary
Before installing your frequency input module in the FLEX I/O system, you
need to:
• calculate the power requirements of all modules in each FLEX I/O
system, and
• position the keyswitch on the terminal base.
This FLEX I/O module does not receive primary operational power
ATTENTION
from the backplane. 24V DC power must be applied to your module
before installation. If power is not applied, the module position may
appear to the adapter as an empty slot in your chassis.
The wiring of the terminal base unit is determined by the current draw
through the terminal base. Make certain that the current draw does not
exceed 10 A.
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Publication 1794-6.5.11 - September 2011
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