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Hitachi WJ200-004M Quick Reference Manual page 23

Wj200 series
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The two diagrams below input wiring circuits using the inverter's internal +24V 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 necessary to connect terminal [L]
only when using the field device with transistors. 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
7
Input switches
Short bar
P24
Input common
PLC
L
Logic GND
1
7
Input switches
22
WJ200
24V
+
-
Input
circuits
WJ200
24V
+
-
Input
circuits

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