Omron SYSDRIVE 3G3MV-A2001, User Manual

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2-32
D
Countermeasures with Reactors against Harmonics Generation
DC/AC Reactors
The DC reactor and AC reactor suppress harmonics and currents that change suddenly and greatly.
The DC reactor suppresses harmonics better than the AC reactor. The DC reactor used with the AC
reactor suppresses harmonics more effectively.
The input power factor of the Inverter is improved by suppressing the harmonics of the input current of
the Inverter.
Connection
Connect the DC reactor to the internal DC power supply of the Inverter after shutting OFF the power
supply to the Inverter and making sure that the charge indicator of the Inverter turns OFF.
Do not touch the internal circuitry of the Inverter in operation, otherwise an electric shock or burn injury
may occur.
Wiring Method
[With DC Reactor]
3-phase 200 V AC,
single-phase 200 V AC,
or 3-phase 400 V AC
Power supply
DC reactor
(optional)
SYSDRIVE
3G3MV
[With DC and AC Reactors]
3-phase 200 V AC,
single-phase 200 V AC, or
3-phase 400 V AC
Power supply
AC reactor
(optional)
DC reactor
(optional)
SYSDRIVE
3G3MV
Design Chapter 2