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Connection Of The Power Improving Dc Reactor Fr-hel; Installation Of A Reactor - Mitsubishi Electric FR-E700 Instruction Manual

Frequency inverter.
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Wiring
3.7.6

Connection of the power improving DC reactor FR-HEL

When using the DC reactor (FR-HEL), connect it between terminals P1 and +. In this case, the
jumper connected across terminals P1 and + must be removed. Otherwise, the reactor will not
exhibit 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 (1000kVA 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 (FR-HEL) or AC reactor (FR-BAL-B).
Single-phase power input
Three-phase power input
Fig. 3-28: Installation of a reactor
When connecting the FR-HEL, remove the jumper across terminals + and P1.
NOTES
The wiring length between the FR-HEL and inverter should be 5m maximum and minimized.
Use the same wire size as that of the power supply wire (R/L1, S/L2, T/L3). (Refer to page 3-9.)
FR-E700 EC
jumper.
AC reactor
(FR-BAL-B)
Power
supply
AC reactor
(FR-BAL-B)
Power
supply
Connection of stand-alone option units
Fig. 3-27:
Connection of a DC reactor
Inverter
M
3~
DC reactor
(FR-HEL)
Inverter
DC reactor
(FR-HEL)
I002048E
Installation
range of reactor
Wiring length [m]
I002038E
3 - 37

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