Rockwell Automation 1794-VHSC 1794 FLEX I/O Very High Speed Counter Module User Manual - Manual (Page 31)

Rockwell Automation Publication 1794-UM010D-EN-E - July 2013 23
Install Your FLEX I/O VHSC Module
Wiring Information This section provides essential wiring information for the 1794-TB3G, 1794-
TB3GK, and 1794-TB3GS terminal base units. It also includes instructions for
connecting wiring to the FLEX I/O module.
Wire the Terminal Base Units (1794-TB3G shown)
Wiring the FLEX I/O VHSC Input module is done using the 1794-TB3G,
1794-TB3GK or the 1794-TB3GS terminal base unit.
IMPORTANT The adapter is capable of addressing eight modules. Do not exceed a
maximum of eight terminal base units in your system.
Digital input
module
Digital input
module
Digital output
module
VHSC
module
VHSC
module
Frequency input
module
VHSC
module
VHSC
module
Daisy-chaining
Individual
24V DC
24V DC
24V DC
24V DC
Wiring when total current draw is less than 10 A
Wiring when total current draw is greater than 10 A
Note: Do not use any digital modules in this configurations.
Note: Use this configuration if using any digital output
modules that could couple transients to the 24V supply.
1794-VHSC module wiring separate from digital wiring.
45897
ATTENTION: Take note of the following considerations when wiring
your terminal base units:
· AIl modules must be frequency or analog modules for the daisychain
configuration.
· Use the individual type of configuration for any "noisy" DC digital I/O
modules in your system.
· All modules powered by the same power supply must be frequency or
analog modules for the combination type of configuration.