Rockwell-automation 1771-QB Linear Pos. Manual de usuario Pagina 56

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Installing the Linear Positioning Module
Chapter 5
517
Pull-down resistors or double-throw switches are only required if you wish to
connect two or more QB’s. They are not required to control multiple discrete
inputs on a single module.
Figure 5.10
Using
PullDown Resistors to Control Multiple QB'
s
50024
LOOP2
AUTO/MAN
START
STOP
JOG FWD
JOG REV
INPUT 1
INPUT 2
I/P COMMON
14
16
18
20
22
24
26
28
Module A
Wiring Arm
10 to 30 VDC
Jog Forward
Jog Reverse
PullDown
Resistors
1000 W 2W
LOOP2
AUTO/MAN
START
STOP
JOG FWD
JOG REV
INPUT1
INPUT 2
I/P COMMON
14
16
18
20
22
24
26
28
Module B
Wiring Arm
PullDown
Resistors
1000 W 2W
LOOP2
AUTO/MAN
START
STOP
JOG FWD
JOG REV
INPUT 1
INPUT 2
I/P COMMON
14
16
18
20
22
24
26
28
PullDown
Resistors
1000 W 2W
Module C
Wiring Arm
ATTENTION: Failure to follow these procedures can result in
sporadic operation of the discrete inputs.
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