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Connection of stand-alone option unit
2.4.4
Connection of the power regeneration common converter (FR-CV)
When connecting the power regeneration common converter (FR-CV), connect the drive unit terminals (P/+ and N/-) and
power regeneration common converter (FR-CV) terminals as shown below so that their symbols match with each other.
MCCB
Three-phase
AC power supply
Keep input terminals (R/L1, S/L2, T/L3) open. Incorrect connection will damage the drive unit.
Do not insert an MCCB between the terminals P/+ and N/- (between P/L+ and P/+, between N/L- and N/-). Opposite polarity of terminals
N/- and P/+ will damage the drive unit.
Always connect the power supply and terminals R/L11, S/L21, T/MC1.
Operating the drive unit without connecting them will damage the power regeneration common converter.
Use Pr. 178 to Pr. 182 (input terminal function selection) to assign the terminals used for the X10, RES signal. (Refer to page 117.)
Be sure to connect terminal RDYB of the FR-CV to the X10 signal or MRS signal assigned terminal of the drive unit, and connect terminal
SE of the FR-CV to terminal SD of the drive unit. Without proper connecting, FR-CV will be damaged.
NOTE
The voltage phases of terminals R/L11, S/L21, T/MC1 and terminals R2/L1, S2/L2, T2/L3 must be matched.
Use sink logic (factory setting) when the FR-CV is connected. The FR-CV cannot be connected when source logic is
selected.
Do not connect a DC reactor (FR-HEL) to the drive unit when FR-CV is connected.
A Filterpack (FR-BFP2) cannot be connected when FR-CV is connected.
Parameters referred to
Pr. 30 Regenerative function selection
32
Dedicated stand-alone
reactor (FR-CVL)
MC
1
R/L
R2/L
11
S/L
S2/L
21
T/L
31
T2/L
Refer to page 114.
FR-CV type power
regeneration common converter
12
R2/L
1
22
S2/L
P/L+
2
32
T2/L
3
N/L-
P24
R/L
11
SD
S/L
21
*3
RDYA
T/MC1
RDYB
RSO
SE
R/L1
U
S/L2
*1
V
T/L3
W
Drive unit
P/+
*2
N/-
PC
SD
*5
X10
*4
RES
*4
SD
M
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