Rockwell Automation 1746-BTM Barrel Temperature Control Module User Manual - Manual (Page 19)

Publication 1746-UM010B-EN-P - April 2001
Installing and Wiring 2-3
Determining Power
Requirements When computing power supply requirements, add the values shown
in Table 2.A to the requirements of all other modules in the SLC
chassis to prevent overloading the chassis power supply.
Choosing a Module Slot in
a Local I/O Chassis Place your module in any slot of an SLC500 module, or modular
expansion chassis, except for the left–most slot (slot 0), reserved for
the SLC processor or adapter modules.
Installation considerations
Most thermocouple–type applications require an industrial enclosure
to reduce the effects of electrical interference. Thermocouple inputs
are highly susceptible to electrical noises due to the small signal
amplitudes (microvolt/C °). Isolate them from other input wiring and
modules that radiate electrical interference.
Group your modules within the I/O chassis to minimize adverse
effects from radiated electrical noise and heat. Consider the following
conditions when selecting a slot location. Position the module away
from modules that:
•
connect to sources of electrical noise such as relays and ac
motor drives
•
generate significant heat, such as 32–point I/O modules
Table 2.A Power Supply Requirements
5V dc amps 24V dc amps
0.110 0.085
IMPORTANT
For proper operation, use this module with a local
processor. The module is not designed to operate in
a remote chassis.