Allen-Bradley 1794-IRT8 - Mounting the Terminal Base Unit (DIN Rail & Panel)

Publication 1794-6.5.12 - November 1997
2-4 How to Install Your Thermocouple/RTD/mV Input Module
Installing the Module Installation of the analog module consists of:
• mounting the terminal base unit
• installing the TC/RTD/mV module into the terminal base unit
• installing the connecting wiring to the terminal base unit
If you are installing your module into a terminal base unit that is already
installed, proceed to “Mounting the Thermocouple/RTD/mV Module on
the Terminal Base” on page 2-8.
Mounting the Terminal Base Unit on a DIN Rail
1. Remove the cover plug (if used) in the male connector of the unit to
which you are connecting this terminal base unit.
2. Check to make sure that the 16 pins in the male connector on the adja-
cent device are straight and in line so that the mating female connec-
tor on this terminal base unit will mate correctly.
3. Position the terminal base on the 35 x 7.5mm DIN rail A (A-B pt. no.
199-DR1; 46277-3) at a slight angle with hook B on the left side of
the terminal base hooked into the right side of the unit on the left. Pro-
ceed as follows:
!
ATTENTION: Do not remove or replace a terminal base
unit when power is applied. Interruption of the flexbus can
result in unintended operation or machine motion.
A
Position terminal base at a slight angle and hooked over the
top of the DIN rail.
A
B
7
7
6
2
3
4
0
9
8
1
Allen-Bradley PLCs