Mitsubishi Electric fr-e700 series, Instruction Manual

Page: 83 / 608

Wiring Connection of stand-alone option units
FR-E700 SC EC/ENE 3 - 47
3.8.6 Connection of the power improving DC reactor FFR-HEL-(H)-E
When using the DC reactor (FFR-HEL-(H)-E), connect it between terminals P1 and P/+. In this case, the
jumper connected across terminals P1 and P/+ must be removed. Otherwise, the reactor will not ex-
hibit its performance.
3.8.7 Installation of a reactor
When the inverter is connected near a large-capacity power transformer (500 kVA or more) or when
a power capacitor is to be switched over, an excessive peak current may flow in the power input cir-
cuit, damaging the converter circuit. To prevent this, always install the optional DC reactor (FFR-
HEL-(H)-E) or AC reactor (FR-BAL-B).
햲
When connecting the FFR-HEL-(H)-E, remove the jumper across ter (resp. P/+) and P1.
The wiring length between the FFR-HEL-(H)-E and inverter should be 5 m maximum and mini-
mized.
Fig. 3-41:
Connection of a DC reactor
I002048E_N
NOTES The wiring distance should be within 5m.
The size of the cables used should be equal to or larger than that of the power supply cables (R/L1,
S/L2, T/L3).
I002038E
Fig. 3-42: Installation of a reactor
NOTE Use the same wire size as that of the power supply wire (R/L1, S/L2, T/L3). (Refer to page 3-10.)
FFR-HEL-(H)-E
P1 P/+
Remove the
jumper.
Power
supply
AC reactor
(FR-BAL-B)
DC reactor
(FFR-HEL-(H)-E)
햲
Installation
range of reactor
Wiring length [m]
P
o
w
er supply
capacit
y [kV
A
]
M
3~
Inverter
DC reactor
(FFR-HEL-(H)-E)
햲
Single-phase power input
Three-phase power input
Power
supply
AC reactor
(FR-BAL-B) Inverter
M
3~