Yaskawa E7B Drive Bypass - Manual (Page 290)

Peripheral Devices E - 4
General Peripheral Devices
The following peripheral devices may be required to be mounted between the AC main circuit power supply and the Drive
input terminals R/L1, S/L2, and T/L3.
For more details on peripheral devices, contact the manufacturer.
Magnetic Contactor
Mount a surge protector on the coil. When using a magnetic contactor to start and stop the Drive, do not exceed one start per
hour.
AC and DC reactor
Install a reactor to connect to a power supply transformer of large capacity (600 kVA or more) or to improve the power factor
on the power supply side.
Fig E.1 Connected Drive (kVA)
Noise filter
Use a noise filter exclusively for the Drive if radio noise generated from the Drive causes other control devices to malfunction.
CAUTION
Never connect a general LC/RC noise filter to the DriveDrive output circuit.
Never connect a phase-advancing capacitor to the input or output sides, or a surge suppressor to the output
side of the Drive. When magnetic contactor is installed between the Drive and the motor, never turn it on or off
during operation.
4000
P
ower Supply (kV
A)
600
0 60 400
AC or DC
Reactor Not Required
AC or DC
Reactor Required