APPLICATION
An aluminum manufacturer had the
requirement to heat soak aluminum
ingots before they were to advance into
their hot roll mill. The system is being
controlled by a PLC that allows the
material to move to the next of twelve
zones as soon as the aluminum ingot
reaches the soak temperature. An
IRMA, RTD Loop powered signal
conditioner was used to transmit each
zone temperature, measured by an
RTD sensor, to the PLC. Because the
heat soak procedure was accomplished
in an eighty foot furnace tunnel, a
relatively long wire run was required
to connect each RTD with the PLC.
The IRMA transmitter converts and
linearizes the RTD signal into a 4 to 20
mA signal that can be run long
distances to connect to the PLC.
TROUBLESHOOTING
For further technical assistance, contact technical support at the appropriate
company numbers listed.
G Rail Installation
To install the IRMA
on a “G” style DIN rail,
angle the module so that
the upper groove of the
“foot” catches under the
lip of the top rail. Push
the module toward the
rail until it snaps into
place. To remove a
module from the rail,
push up on the bottom of
the module while pulling
out away from the rail.
T Rail Installation
To install the IRMA
on a “T” style rail, angle
the module so that the
top groove of the “foot”
is located over the lip of
the top rail. Push the
module toward the rail
until it snaps into place.
To remove a module
from the rail, insert a
screwdriver into the slot
on the bottom of the
“foot”, and pry upwards
on the module until it
releases from the rail.
INSTALLATION
The unit is equipped with a universal mounting foot for attachment to standard DIN style mounting rails,
including G profile rail according to EN50035 - G32 , and top hat (T) profile rail according to EN50022 - 35 x 7.5
and 35 x 15. The unit should be installed in a location that does not exceed the maximum operating temperature and
provides good air circulation. Placing the unit near devices that generate excessive heat should be avoided.
6
3-WIRE RTD
TO
PLC
ZONE 1
MC2160X
POWER/
OUTPUT
+
-
IRMA
RTD
S
+
1
2
3
4
5
6
-
PLC
AUDIN - 8, avenue de la malle - 51370 Saint Brice Courcelles - Tel : 03.26.04.20.21 - Fax : 03.26.04.28.20 - Web : http: www.audin.fr - Email : [email protected]
