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Hitachi WL200 Series - Page 34

Hitachi WL200 Series
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32
CAUTION: Be sure to connect diode in between "P24" and "PLC" when connecting plural
inverters with digital input wiring in common.
By having ability inverter doesnt block the current flowing into itself when it is not powered.
This may cause the closed circuit when two or more inverters are connected to common
I/O wiring as shown below to result in unexpected turning the on the input. To avoid this
closed circuit, please put the diode (rated:50V/0.1A) in the path as described below.
Jumper
wire
Inserting
diode
P24
PLC
L
1
P24
PLC
L
1
Switch
OFF
Power ON
Power OFF
Input
ON
P24
PLC
L
1
P24
PLC
L
1
Switch
OFF
Power ON
Power OFF
Input
OFF
Jumper
wire
1
Switch
OFF
Switch
OFF
Input
OFF
Input
ON
P24
PLC
L
P24
PLC
L
P24
PLC
L
P24
PLC
L
1
1
1
Jumper
wire
In case of Source logic
Jumper
wire

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