Connection Of The Power Regeneration Common Converter (Fr-Cv) - Mitsubishi Electric FR-A720-0.4K Instruction Manual

2.5.6

Connection of the power regeneration common converter (FR-CV)

When connecting the power regeneration common converter (FR-CV), make connection so that the inverter terminals
(P/+, N/-) and the terminal symbols of the power regeneration common converter (FR-CV) are the same (55K or lower).
After making sure that the wiring is correct, set "2" in Pr. 30 Regenerative function selection.
MCCB
Three-phase
AC power
supply
*1 Remove the jumpers across terminals R/L1 and R1/L11 and S/L2 and S1/L21 of the inverter, and connect the control
circuit power supply across terminals R1/L11 and S1/L21. Always keep the power input terminals R/L1, S/L2, T/L3 open.
Incorrect connection will damage the inverter. (E.OPT (option alarm) will occur. (Refer to page 147))
*2 Do not insert the MCCB between the terminals P/+ and N/- (between P/L+ and P/+, between N/L- and N/-). Opposite
polarity of terminals N/-, P/+ will damage the inverter.
*3 Assign the terminal for X10 signal using any of Pr. 178 to Pr. 189 (input terminal function selection). (Refer to page 117)
*4 Be sure to 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.
*5 Always connect the terminal RDYB (of FR-CV) to a terminal where the X10 or MRS signal is assigned in the inverter.
Always connect the terminal SE (of FR-CV) to the terminal SD (of the inverter). Not doing so may damage FR-CV.
CAUTION
⋅ The voltage phases of terminals R/L
⋅ 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 to the inverter when FR-CV is connected.
⋅ Do not remove a jumper across terminal P/+ and P1.
Dedicated stand-alone
reactor (FR-CVL)
MC1
R/L11 R2/L12
S/L21 S2/L22
T/L31 T2/L32
, S/L , T/MC1 and terminals R2/L
11 21
Connection of stand-alone option units
R/L1
S/L2
T/L3
R1/L11
S1/L21
FR-CV type
Power regeneration
common converter
R2/L1
S2/L2 P/L+ P/+
T2/L3 N/−
N/L−
P24 PC
R/L11
SD SD
S/L21
*4
RDYA
T/MC1
*5
RDYB X10
RSO RES
SE
, S2/L , T2/L must be matched.
1 2 3
U
*1
V IM
W
Inverter
*2
*3
43
2