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ATech Machine ZETA-02 A Guía de instalación Pagina 21

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Chapter 1. Installation 15
INPUT CONNECTIONS Ñ Connecting to electronic devices such as PLCs
Connection to a
Sinking Output
Device
Connection to a
Sourcing Output
Device
Connection to a
Combination of
Sinking &
Sourcing
Outputs
Electronic
Device
Out 5-24 Volts
ISO GND
74HCxx
6.8 KW
47 KW
Input
Connection
Ground
Connection
Output
Ground
+5VDC
IN-P
+5V
GND
Pulled up
to +5V
(sourcing)
The output should
be able to sink at
least 1mA of current.
ZETA6104
ISO GND
Electronic
Device
Out 5-24 Volts
ISO GND
74HCxx
6.8 KW
47 KW
Input
Connection
Ground
Connection
Output
Ground
+5VDC
IN-P
+5V
GND
Pulled
down to
ground
(sinking)
ZETA6104
ISO GND
V
1
R
1
Typical value for R = 450W (assuming R
1
= 0)
Note: The value of R may vary depending on the value of R
1
and V
1
.
Electronic
Device
Out 5-24 Volts
ISO GND
74HCxx
6.8 KW
47 KW
Input
Connection
Ground
Connection
Output
Ground
+5VDC
IN-P
+5V
GND
Pulled up
to +5V
(sourcing)
ZETA6104
ISO GND
V
1
R
1
R
PROGRAMMING TIP
Connecting to a
sinking output? Set the
inputÕs active level to low
with the INLVL command
(¯ = active low).
Connecting to a
sourcing output? Set
the inputÕs active level to
high with the INLVL
command (1 = active high).
Thus, when the output is
active, the TIN status
command will report a Ò1Ó
(indicates that the input is
active), regardless of the
type of output that is
connected.
Details on setting the active
level and checking the input
status are provided in the
6000 Series ProgrammerÕs
Guide. Refer also to the
INLVL and TIN command
descriptions in the 6000
Series Software Reference.
NOTE: If you will be connecting to a combination of sourcing and sinking outputs, connect IN-P to +5V (or to an
external 5-24VDC supply) to accommodate sinking output devices. Then for each individual input
connected to a sourcing output, wire an external resistor between the ZETA6104Õs programmable input
terminal and ground (see ÒRÓ in above drawing). The resistor provides a path for current to flow from the
device when the output is active.
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