Rockwell Automation 1794-IJ2XT FLEX I/O Frequency Input Modules User Manual - Manual (Page 23)

13 Publication 1794-6.5.11 - September 2011
Chapter
2
Install Your FLEX I/O Frequency Input Module
Overview This chapter provides you with pre-installation requirements and instructions
on how to install your FLEX I/O Frequency Input modules.
Before You Install
Your Module 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.
Power Requirements 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.
Topic Page
Before You Install Your Module 13
Power Requirements 13
Install the Module 14
Mount on a DIN Rail 14
Mount on a Panel or Wall 16
Mount the Frequency Input Module on the Terminal Base Unit 18
Wiring Information 20
Connect Wiring to the FLEX I/O Frequency Input Module 21
Connecting Wiring Using a 1794-TB3G, 1794-TB3GK or 1794-TB3GS
Terminal Base Unit 22
Resolution and Accuracy 24
Examples of Wiring to a 1794-TB3G Terminal Base Unit 27
Chapter Summary 27
ATTENTION
This FLEX I/O module does not receive primary operational power
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.