Connection Of The Power Regeneration Converter (Mt-Rc) - Mitsubishi Electric FR-F820-00046 Instruction Manual

2.8.6 Connection of the power regeneration converter
(MT-RC)
When connecting the power regeneration converter (MT-RC), perform wiring securely as follows. Incorrect connection will
damage the power regeneration converter and the inverter. The MT-RC is compatible with FR-F840-01800(75K) or higher.
After making sure that the wiring is correct and secure, set "1" in Pr.30 Regenerative function selection.
MCCB
Three-phase
AC power
supply
*1 Terminal P3 is equipped in the FR-F820-00770(18.5K) to 01250(30K) and the FR-F840-00470(22K) to 01800(75K). When connecting multiple
inverters in parallel, always use either terminal P/+ or P3 for the connection. (Do not use terminals P/+ and P3 together.)
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 one second 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 be shut off or damaged.
Inverter input power supply (MC2)
MT-RC power supply (MC1)
• When connecting the power coordination reactor and others, refer to Instruction Manual of the MT-RC for precautions.
2.8.7 Connection of the DC reactor (FR-HEL)
• Keep the surrounding air temperature within the permissible range (-10 to +50°C). Keep enough clearance around the
reactor because it heats up. (Take 10 cm or more clearance on top and bottom and 5 cm or more on left and right
regardless of the installation direction.)
MC2
MC1
DCL
MT-RCL
R
R2
S
S2
T T2
ON
1s or more
10 cm or more
5 cm or
5 cm or
more
more
Inverter
U
R/L1
V
S/L2
W
T/L3
R1/L11
S1/L21
P1
P1
P/+
*1
(P3)
N/-
P
P
N
RES
R2
STF
S2
SD
T2
C
B
R
A
S
RDY
T
R1
SE
S1
MT-RC
ON
5 cm or 5 cm or
more more
2.8 Connection of stand-alone option units
M
Reset signal
Alarm signal
Ready signal
2. INSTALLATION AND WIRING
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