Rockwell Automation 1771-IL/B , D17716.5.91 ISOLATED ANALOG INPUT Module - Manual (Page 13)

Installing the Input Module
Chapter 2
2-2
Your module receives its power through the 1771 I/O power supply. The
Isolated Analog input module requires 1.2A at 5V from the power supply.
Add this current to the requirements of all other modules in the I/O chassis
to prevent overloading the chassis backplane and/or backplane
power supply.
Place your module in any I/O module slot of the I/O chassis except for the
extreme left slot. This slot is reserved for programmable controller
processors or adapter modules.
Group your modules to minimize adverse affects from radiated electrical
noise and heat. We recommend the following.
Group analog input and low voltage dc modules away from ac modules
or high voltage dc modules to minimize electrical noise interference.
Do not place this module in the same I/O group with a discrete
high-density I/O module when using 2-slot addressing. This module
uses a byte in both the input and output image tables for block transfer.
After determining the module’s location in the I/O chassis, connect the
wiring arm to the pivot bar at the module’s location.
The Isolated Analog Input Module (1771-IL/B) is shipped with each
channel set for voltage mode. If a milliamp input is desired, you must set a
jumper on the functional analog block (FAB) for that particular channel.
To set the selection jumpers for your desired inputs, proceed as follows:
1. Remove the module’s left hand cover plate (the one without
the labels).
2. Locate the selection plugs (Figure 2.1).
3. Position the jumpers as shown in Figure 2.1 for your
particular module.
4. Reassemble the module after you have finished checking and/or
setting the selection plugs.
Power Requirements
Module Location in the I/O
Chassis
Setting the Voltage/Current
Selection Jumpers