Connection Of The Power Regeneration Converter (Mt-Rc) - Mitsubishi Electric FR-CC2-H355K Instruction Manual

2.8.3
Connection of the power regeneration converter
(MT-RC)
When connecting the power regeneration converter (MT-RC), perform wiring securely as shown below. Incorrect connection
will damage the power regeneration converter and the inverter. After making sure that the wiring is correct, set "1" in Pr.30
Regenerative function selection.
MCCB
Three-phase
AC power
supply

For wiring to terminals P/+ and N/- of the FR-F842-08660(400K) or lower inverters, up to two cables can be connected. For wiring to the
terminals of the FR-F842-09620(450K) or higher inverters, up to four cables can be connected. To use more cables, use a bus bar.
NOTE
• When using the inverter 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 1 s 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.
• When connecting the power coordination reactor and others, refer to
Instruction Manual of the MT-RC for precautions.
MC2
MC1
MT-RCL
R R2
S
S2
T T2
Connection of stand-alone option units
Inverter / converter unit
U
R/L1
M
V
S/L2
W
T/L3
R1/L11
S1/L21
P/+ N/-
∗1
Reset signal
P
N
RES
R2
STF
S2
SD
T2
C
B
R
A
S
RDY
T
R1
Ready signal
SE
S1
MT-RC
Inverter input power
supply (MC2)
MT-RC power
supply (MC1)
INSTALLATION AND WIRING
Alarm signal
ON
ON
1 s or more
2
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