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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 doesn’t 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.