Mitsubishi Electric FR-E520 Instruction Manual page 46

Transistorized inverter
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(5) Connection of the power regeneration common converter (FR-CV)
When connecting the type power regeneration common converter (FR-CV), connect the
inverter terminals (P(+), N(-)) and power regeneration common converter (FR-CV)
terminals as shown below so that their signals match with each other. For details, refer
to the instruction manual of the power regeneration common converter (FR-CV).
NFB
MC
3-phase
AC power
supply
Note: 1. When the FR-CV is connected, use sink logic (factory setting). For source
logic, the FR-CV cannot be connected.
2. The DC power supply input from the terminals P (+) and N (-) is used as the
control power supply. The power input terminals R (L1), S (L2), T (L3) must
be open. Accidental connection will damage the inverter. Opposite polarity
of terminals N (-), P (+) will damage the inverter.
3. The voltage phases of terminals R/L11, S/L21, T/MC1 and terminals R2/L1,
S2/L2, T2/L3 must be matched before connection.
4. The MRS terminal functions can be changed using Pr.183 "MRS terminal
function selection". When connecting the power regeneration common
converter (FR-CV), use the inverter with "6" (factory-set) in Pr.183. (Refer to
page 161.)
5. Do not insert NFB between terminals P-N(P (+) - P/L+, N (-) - N/L-)
6. Make sure terminals R/L11, S/L21, T/MC1 are connected to the power
supply. Running the inverter without connecting the terminals will damage
the power regeneration common converter.
Dedicated stand-alone
reactor (FR-CVL)
1
R/L
R2/L
11
S/L
S2/L
21
T/L
T2/L
31
(Note 6)
INSTALLATION AND WIRING
FR-CV power regenerative
common converter
12
R2/L
1
22
S2/L
P/L+
2
32
T2/L
N/L-
3
(Note 3)
P24
R/L
11
SD
S/L
21
RDYA
T/MC1
RDYB
RSO
SE
36
R (L
)
1
U
S (L
)
(Note 2)
2
V
T (L
)
3
W
Inverter
(Note 5)
P (+)
(Note 2)
N (-)
PC
SD
MRS (Note 4)
RES
SD
IM

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