Connection Of The Power Improving Dc Reactor Ffr-Hel-(H)-E; Installation Of A Reactor - Mitsubishi Electric FR-E700 Series Instruction Manual

Connection of stand-alone option units
3.7.6

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.
Remove the
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).
3.7.7

Installation of a reactor

When the inverter 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 the optional DC reactor (FFR-HEL-(H)-E)
or AC reactor (FR-BAL-B).
Single-phase power input
Three-phase power input
Fig. 3-35: Installation of a reactor
When connecting the FFR-HEL-(H)-E, remove the jumper across terminals + (resp. P/+) and P1.
The wiring length between the FFR-HEL-(H)-E and inverter should be 5m maximum and mini-
mized.
NOTE Use the same wire size as that of the power supply wire (R/L1, S/L2, T/L3). (Refer to page 3-9.)
3 - 42
P1 P/+
jumper.
AC reactor
(FR-BAL-B)
Power
supply
AC reactor
(FR-BAL-B)
Power
supply
Fig. 3-34:
Connection of a DC reactor
FFR-HEL-(H)-E
Inverter
M
3~
DC reactor
(FFR-HEL-(H)-E)
Inverter
M
3~
DC reactor
(FFR-HEL-(H)-E)
Wiring
I002048E_N
Installation
range of reactor
Wiring length [m]
I002038E