Connection Of Power Regeneration Converter (Mt-Rc) (Fr-A720-02880 (Fr-A740-01440) Or More); Connection Of The Power Factor Improving Dc Reactor (Fr-Hel) - Mitsubishi Electric FR-A700 Instruction Manual

2.5.7 Connection of power regeneration converter (MT-RC)
(FR-A720-02880 (FR-A740-01440) 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.
2.5.8

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 FR-A720-02150 (FR-A740-01100) or less, the jumper connected across terminals P1-P/+ must be removed.
Otherwise, the reactor will not exhibit its performance.
For the FR-A720-02880 (FR-A740-01440) or more, a DC reactor is supplied. Always install the reactor.
When using the FR-A720-02150 with LD or SLD set, always use a DC reactor (option FR-HEL-75K).
When using the FR-A740-01100 with LD or SLD set, always use a DC reactor (option FR-HEL-H90K).
CAUTION
⋅ The wiring distance should be within 5m (16.4feet).
⋅ 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)
MCCB
DCL
MT-RCL
R
S
T
P1
Remove
the jumper.
Connection of stand-alone option units
Inverter
MC
U
R/L1
V
S/L2
W
T/L3
R1/L11
S1/L21
P1
P1
P/+ N/
P
P N
R2
R2
RES
STF
S2
S2
SD
T2 C
T2
B
A
R
S
RDY
T
R1
SE
S1
MT-RC
P/+
FR-HEL
I M
Reset signal
Alarm signal
Ready signal
53
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