9-1.Expansion cards
If the extended function (RS485 card, PG card, Canbus card, etc.)for other functional modules is
needed, please specify the functional module card you want when ordering.
9-2.AC input reactor
AC input reactor can inhibit high harmonics of the inverter input current, significantly improving
power factor of the inverter. It is recommended that AC input reactor should be used in the following
cases.
※ The ratio of the capability of power supply used for the inverter to the inverter own
capability is more than 10:1.
※ The thyristor load or the device of power-factor compensation with ON/OFF is connected
with the same power supply.
※ The degree of unbalance for three-phase power supply voltage is larger (≥ 3%).
※ Dimensions for common specifications of AC input reactor are as follows: