5 - installing the linear positioning module, Before you begin, Installing the linear positioning module – Rockwell Automation 1771-QB Linear Pos. User Manual

Page 40

Advertising
background image

Chapter

5

5Ć1

Installing the Linear Positioning Module

This chapter tells you how to install the module in the I/O chassis and how to
configure the module’s analog outputs by setting DIP switches. Before you
install the module:

make sure your power supply is adequate

plan your module’s location in the I/O chassis

take steps to avoid electrostatic discharge

Avoiding Backplane Power Supply Overload

Make sure your power supply can handle the extra load before installing the
module in your I/O chassis. Add the module’s current requirement, listed on the
module’s label, to the currents required by other modules inserted in the I/O
chassis. If the backplane power supply rating is less than the total current
required, you’ll need a larger power supply.

Here are the current ratings for the various Allen-Bradley power supply
modules.

This Power Supply Module:

Is Rated at:

1771ĆP1

6.5A

1771ĆP2

6.5A

1771ĆP4

8A

1771ĆP5

8A

1771ĆP7

16A

Planning Module Location

The module requires one I/O chassis slot. You can install it in any slot in the I/O
chassis. The module uses both the output image table byte and the input image
table byte that corresponds to its location address.

Before You Begin

Advertising