Key your i/o chassis – Rockwell Automation 1771-QDC, D17716.5.87(Passport) CLAMP AND EJECT MODE User Manual

Page 26

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Install the QDC Module

Chapter 2

2-5

Important: Selecting –10 to +10V dc with jumper E11, E12, E15, and/or
E16 sets the QDC module for bi-directional valve operation. The
relationship to percentage output is as follows:

% Output Requested

Output V

oltage

-10

-8

-5

-3

0

3

5

8

10

0

10 20 30 40 50 60 70 80 90 100

Use the plastic keying bands, shipped with each I/O chassis, for keying I/O
slots to accept only one type of module. This is done to prevent the
inadvertent installation of the wrong module into the wrong slot.

The QDC module is slotted in two places on the rear edge of the circuit
board. The position of the keying bands on the backplane connector must
correspond to these slots to allow insertion of the module.

Place keying bands between the following terminal numbers labeled on the
backplane connector of your I/O chassis (see Figure 2.2):

between 20 and 22
between 26 and 28

Figure 2.2

Keying Positions

2
4
6
8
1 0
1 2
1 4
1 6
1 8
2 0
2 2
2 4
2 6
2 8
3 0
3 2
3 4
3 6

12676

Keying

Bands

1771ĆQDC

Key Your I/O Chassis

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