Hitachi WJ200 Series Quick Reference Manual page 30

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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
Open collector outputs,
NPN transistors
Sourcing Inputs, Internal Supply
Short bar = [PLC] – [L] position
Field device
to PNP bias
circuits
PNP transistor
sousing outputs
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Logic GND
GND
1
7
Input switches
Common to
[P24]
Logic GND
1
7
Input switches
GND
28
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Short bar
WJ200
P24
Input common
PLC
L
1
Input
circuits
7
Short bar
WJ200
P24
Input common
PLC
L
1
Input
circuits
7
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24V
+
-
24V
+
-