40
Connection to the Stand-Alone Option
1.6.3 Connection of the power regeneration common
converter (FR-CV)
When connecting the FR-CV type power regeneration common converter, connect the
inverter terminals (P, N) and FR-CV type power regeneration common converter
terminals as shown below so that their signals match with each other.
CAUTION
1. Use sink logic (factory setting) when the FR-CV is connected. The FR-CV
cannot be connected when source logic is selected.
2. The power input terminals R, S, T must be open. Incorrect 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. Use Pr. 60 to Pr. 63 (input terminal function selection) to assign the terminals
used for the RES and MRS signals.
5. Do not insert NFB between terminals P-N (P/L+ - P, N/L− - N)
6. Make sure to connect the terminal R/L11, S/L21, T/MC1 to the power supply.
Running the inverter without connecting the terminals will damage the
power regeneration common converter.
7. The N terminal is not provided for the FR-S520E-0.1K to 0.75K.
MC1
NFB
R/L11
Dedicated stand-alone
reactor (FR-CVL)
S/L21
T/L31
R2/L12
S2/L22
T2/L32
R2/L
1
S2/L
2
T2/L
3
R/L11
S/L21
T/MC1
P/L+
N/L-
U
V
W
IM
Three-phase
C power
supply
FR-CV power regenerative
common converter
Inverter
PC
SD
MRS (Caution 4)
RES (Caution 4)
P24
SD
RDYB
RSO
SE
RDYA
(Caution 6)
(Caution 2)
(Caution 1)
(Caution 3)
(Caution 7)
(Caution 5)
R
S
T
P
N
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