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Installation of a reactor
3
PRECAUTIONS FOR USE OF THE DRIVE UNIT
3.2 Installation of a reactor
When the drive unit is connected near a large-capacity power transformer (500kVA or more) or when a power capacitor is to
be switched over, an excessive peak current may flow in the power input circuit, damaging the converter circuit. To prevent
this, always install an optional reactor (FR-HAL).
When connecting a single-phase 100V power input drive unit to a power transformer (50kVA or more), install an AC reactor
(FR-HAL) so that the performance is more reliable.
MCCB MC
Drive
unit
AC reactor
(FR-HAL)
Power
supply
R
S
TZ
Y
X
U
V
W
R/L1
S/L2
T/L3
M
500
0
1000
1500
Range requiring
installation of
the reactor
10
Wiring length (m)
Power supply system capacity
(kVA)