Connection Of The Power Regeneration Common Converter (Fr-Cv) - Mitsubishi Electric FR-D720 K Series Instruction Manual

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 inverter terminals (P/+ and N/-) and power
regeneration common converter (FR-CV) terminals as shown below so that their symbols match with each other.
After making sure that the wiring is correct, set "2" in Pr. 30 Regenerative function selection.
MCCB
Three-phase
AC power supply

Keep input terminals (R/L1, S/L2, T/L3) open. Incorrect connection will damage the inverter.

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 inverter.

Always connect the power supply and terminals R/L11, S/L21, T/MC1.
Operating the inverter 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 116.)

Be sure to connect terminal RDYB of the FR-CV to the X10 signal or MRS signal assigned terminal of the inverter, and connect terminal
SE of the FR-CV to terminal SD of the inverter. 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 inverter when the FR-CV is connected.
36
Dedicated stand-alone
reactor (FR-CVL)
MC
1
R/L 11 R2/L
S/L S2/L
21
T/L T2/L
31
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
Inverter
P/+
*2
N/-
PC
SD
*5
X10 *4
RES
*4
SD
IM