Installation Of A Reactor - Mitsubishi Electric FR-D720S SC EC Instruction Manual

Wiring
3.6.7

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 re-
actor (FFR-HEL-(H)-E) or AC reactor (FR-BAL-B).
1-phase power input
3-phase power input
Fig. 3-35: Installation of a reactor
When connecting the FFR-HEL-(H)-E, remove the jumper across terminals P/+ and P1,
resp. P/+ and P1. The wiring length between the FFR-HEL-(H)-E and inverter should be 5m
maximum and minimized.
NOTE Use the same wire size as that of the power supply wire (R/L1, S/L2, T/L3). (Refer to page 3-8.)
FR-D700 SC EC
AC reactor
(FR-BAL-B)
Power
supply
AC reactor
(FR-BAL-B)
Power
supply
Connection of stand-alone option units
Inverter
M
3~
DC reactor
(FFR-HEL-(H)-E)
Inverter
M
3~
DC reactor
(FFR-HEL-(H)-E)
Installation
range of reactor
Wiring length [m]
I002038E
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