Rockwell Automation 1746-NR4 SLC 500 RTD/Resistance Input Module/ Instructions - Manual (Page 5)

SLC 500™ RTD/Resistance Input Module 5
Publication 1746-IN012B-EN-P - May 2001
Electrostatic Damage
Electrostatic discharge can damage semiconductor devices inside this module if you
touch backplane connector pins or other sensitive areas. Guard against electrostatic
damage by observing the following precautions.
•
Wear an approved wrist strap grounding device when handling the module.
•
Touch a grounded object to rid yourself of electrostatic charge before
handling the module.
•
Handle the module from the front, away from the backplane connector. Do
not touch backplane connector pins.
•
Keep the module in its static-shield bag when not in use, or during
shipment.
NR4 Power Requirements
The RTD module receives its power through the SLC 500 chassis backplane from
the fixed or modular +5V dc/+24V dc chassis power supply. The maximum current
drawn by the module is shown in the table below.
When you are using a modular system configuration, add the values shown in the
table above to the requirements of all other modules in the SLC chassis to prevent
overloading the chassis power supply.
When you are using a fixed system controller, refer to the important note about
module compatibility in a 2-slot fixed expansion chassis on page 6.
Modular Chassis Considerations
Place your RTD module in any slot of an SLC 500 modular chassis (except slot 0) or
a modular expansion chassis. Slot 0 is reserved for the modular processor or
adapter modules.
ATTENTION
!
Electrostatic discharge can degrade performance or cause
permanent damage. Handle the module as stated below.
5V dc Amps 24V dc Amps
0.050 0.050