Connection Of Power Regeneration Converter (Mt-Rc) (75K Or More); Connection Of The Power Factor Improving Dc Reactor (Fr-Hel) - Mitsubishi Electric FR-A720-0.4K Instruction Manual

Connection of stand-alone option units
2.5.6 Connection of power regeneration converter (MT-RC)
(75K or more)
When connecting a power regeneration converter (MT-RC), perform wiring securely as shown below. Incorrect
connection will damage the regeneration converter and inverter. After connecting securely, set "1" in
Pr. 30 Regenerative function selection and "0" in Pr. 70 Special regenerative brake duty.
Three-phase
AC power
supply
CAUTION
⋅ Refer to the MT-RC manual for precautions for connecting the power coordination reactor and others.
2.5.7

Connection of the power factor improving DC reactor (FR-HEL)

When using the DC reactor (FR-HEL), connect it between terminals P1-P/+.
For the 55K or less, the jumper connected across terminals P1-P/+ must be removed. Otherwise, the reactor will not
exhibit its performance.
For the 75K or more, a DC reactor is supplied. Always install the reactor.
CAUTION
1. The wiring distance should be within 5m.
2. 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). (Refer to page
22)
52
MCCB
MT-RCL
R
S
T
P1
Remove
the jumper.
Inverter
MC
R/L1
S/L2
T/L3
R1/L11
S1/L21
DCL
P1
P1
P/+ N/
P
P
N
R2
R2
RES
STF
S2
S2
T2
T2
R
S
RDY
T
R1
S1
MT-RC
P/+
FR-HEL
U
V I M
W
Reset signal
SD
C
B
Alarm signal
A
Ready signal
SE