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Connection Of The Power Regeneration Converter (mt-rc) (75k Or Higher) - Mitsubishi Electric FR-F720P-0.75K Instruction Manual

Fr-f700p series.
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2.5.6

Connection of the power regeneration converter (MT-RC) (75K or higher)

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.
MCCB
Three-phase
AC power
supply
CAUTION
⋅ When using the FR-F700P series together with the MT-
RC, install a magnetic contactor (MC) at the input side of
the inverter so that power is supplied to the inverter after
1s or more has elapsed after powering ON the MT-RC.
When power is supplied to the inverter prior to the MT-
RC, the inverter and the MT-RC may be damaged or the
MCCB may trip or be damaged.
⋅ Refer to the MT-RC manual for precautions for
connecting the power coordination reactor and others.
♦ Parameters referred to ♦
Pr.30 Regenerative function selection
Pr.70 Special regenerative brake duty
MC1
MT-RCL
R
S
T
Inverter input power supply (MC2)
MT-RC power supply (MC1)
Refer to Chapter 4 of the Instruction Manual (Applied)
Refer to Chapter 4 of the Instruction Manual (Applied)
Connection of stand-alone option units
Inverter
MC2
U
R/L1
V
S/L2
W
T/L3
R1/L11
S1/L21
DCL
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
Motor
M
Reset signal
Alarm signal
Ready signal
ON
ON
1s or more
35
2

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