Connection Of The Power Regeneration Converter (Mt-Rc); Connection Of The Dc Reactor (Fr-Hel) - Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual

2.10.7 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-A840-02160(75K) or higher.
After making sure that the wiring is correct and secure, set "1" in Pr.30 Regenerative function selection and "0" in Pr.70
Special regenerative brake duty.
MCCB
Three-phase
AC power
supply
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.
• When connecting the power coordination reactor and others, refer to Instruction Manual of the MT-RC for precautions.

2.10.8 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
Inverter input power supply (MC2)
MT-RC power supply (MC1)
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/+ N/-
P
P
N
RES
R2
STF
S2
SD
T2
C
B
R
A
S
RDY
T
R1
SE
S1
MT-RC
ON
ON
1s or more
5 cm or 5 cm or
more more
2. INSTALLATION AND WIRING
2.10 Connection of stand-alone option units
M
Reset signal
Alarm signal
Ready signal
1
2
3
4
5
6
7
8
9
10
105