Rockwell Automation 1771-QB Linear Pos. - Manual (Page 44)

Installing the Linear Positioning Module
Chapter 5
5Ć5
A package of plastic keys (Cat. No. 1771-RK) is provided with every I/O
chassis. When properly installed, these keys prevent the seating of anything but
the module in the keyed I/O chassis slot. Keys also help to align the module
with the backplane connector.
Each module is slotted at its rear edge. Position the keys on the chassis
backplane connector, corresponding to the slots on the module’s rear edge.
Insert the keys into the upper backplane connectors. Position the keys between
the numbers at the right of the connectors, as shown in Figure 5.3.
Figure 5.3
Module Keying
50045
Keying
Positions
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
Between
D pins 16 and 18
D pins 30 and 32
After setting analog output switches and setting the keying positions, you’re
ready to insert the module into a slot in the I/O chassis.
To insert the module, follow this procedure:
1. Remove all power from the I/O chassis and from the module’s wiring arm
before inserting or removing a module.
Keying
Inserting the Module