Sinking Inputs, Internal Supply Diagram; Sourcing Inputs, Internal Supply Diagram - Omron MX2 User Manual

Using Intelligent Input Terminals
176
The two diagrams below input wiring circuits using the inverter's internal
+24 V supply. Each diagram shows the connection for simple switches, or for
a field device with transistor outputs. Note that in the lower diagram, it is nec-
essary to connect terminal [L] only when using the field device with transis-
tors. Be sure to use the correct connection of the short bar shown for each
wiring diagram.
Sinking Inputs, Internal Supply
Short bar = [PLC] – [P24] position
Field device
GND
1
7
Open collector outputs,
NPN transistors
Sourcing Inputs, Internal Supply
Short bar = [PLC] – [L] position
Common to
Field device
[P24]
1
7
to PNP bias
GND
circuits
PNP transistor
sousing outputs
Short bar
P24
Input common
PLC
Logic GND
L
1
Input
circuits
7
Input switches
Short bar
P24
Input common
PLC
L
Logic GND
1
7
Input switches
Section 4-5
MX2
24 V
+
-
MX2
24 V
+
-
Input
circuits