Chapter 1. Installation
31
OUTPUT CONNECTIONS (includes OUT-A) —
for electronic devices such as PLCs
Connection to a Sinking Input (active high) Connection to a Sourcing Input (active low)
Electronic
Device
Output
Connection
Ground
Connection
Input
Ground
OUT-P
+5V
GND
APEX615n
UDK2559
4.7 KΩ
+5VDC
ISO GND
ISO GND
External Supply
(up to 24VDC)
+
–
(open collector)
NOTE: It is not necessary to use the OUT-P pin for a sourcing input.
Electronic
Device
Output
Connection
Ground
Connection
Input
Ground
OUT-P
+5V
GND
APEX615n
UDK2559
4.7 KΩ
+5VDC
ISO GND
ISO GND
External Supply
(up to 24VDC)
+
–
(open collector)
V+
Connection to a Combination of Sinking & Sourcing Inputs
Combinations of sourcing
and sinking inputs can be
accommodated at the same
voltage level. Be aware of
the input impedance of the
sourcing input module, and
make sure that there is
enough current flowing
through the input module
while in parallel with the
OUT-P pull-up resistor.
Electronic
Devices
Output 1
Input
Ground
OUT-P
+5V
GND
APEX615n
UDK2559
4.7 KΩ
+5VDC
ISO GND
External Supply
(up to 24VDC)
+
–
(open collector)
V+
Output 2
Ground
Connection
Input
Ground
UDK2559
4.7 KΩ
ISO GND
(open collector)
Sourcing Input
Sinking Input
Connection to an Inductive Load (active low)
Output
Connection
OUT-P
+5V
GND
APEX615n
UDK2559
4.7 KΩ
+5VDC
ISO GND
External Supply
(up to 24VDC)
+
–
(open collector)
Use an external diode when driving
inductive loads. Connect the diode in
parallel to the inductive load,
attaching the anode to the
APEX615n output and the cathode to
the supply voltage of the inductive
load.
PROGRAMMING TIP
Connecting to an active-
high sinking input? Set
the output's active level to
high with the OUTLVL command
(1 = active high).
Connecting to an active-
low sourcing input? Set
the output's active level to low
with the OUTLVL command
(Ø = active low).
Thus, when the APEX615n's
output is activated, current will
flow through the attached
input and the TOUT status
command will report a “1”
(indicates that the output is
active), regardless of the type
of input that is connected.
Details on setting the active
level and checking the output
status are provided in the
6000 Series Programmer's
Guide
. Refer also to the
OUTLVL and TOUT command
descriptions in the
6000
Series Software Reference
.
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