Rockwell Automation 1336T FORCE Series B User Manual

Page 59

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Chapter 2
Installation/Wiring

2–39

Figure 2.26.
Option L4/L4E Wiring

19

20

21

22

23

24

25

26

27

28

29

30

31

32

A

A

ENC

RET

ENC

12V

33

34

35

36

Typical of Each Input

Typical

L4, L4E Options

Isolated

+5V

Isolated

Ground

0.1

µ

f

0.1

µ

f

0.1

µ

f

10.7k

470

470

12V

681

100

90.9

5V

JP4

IGND

10.7k

Contacts shown are general, refer to Figure 2.24 for

Input Mode selection and recommended contact types.

TB3

NOT
USED

Option L4/L4E – Contact Closure Interface Board Requirements

Circuits used with Option L4/L4E must be capable of operating with low =
true logic. Reed type input devices are recommended.

In the low state, external circuits must be capable of a sinking current of
approximately 10mA to pull the terminal voltage low to 3.0V DC or less.

In the high state, external circuits must allow the terminal voltage to rise to
a voltage of 4.0–5.0V DC.

The L4/L4E option is compatible with the following Allen–Bradley PLC
modules:

1771–OYL

1771–OZL

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